清水工業 List of Products and Services

This is a mechanical soft-seal partition valve that corresponds to JWWA K 144 standard polyethylene pipes for water distribution, designed for easy installation without the need for torque management. The main body of the partition valve is based on Excel Pro, which complies with JWWA B 120, and it features a 'stem lock function' to prevent valve damage due to over-torque. The joining method with polyethylene pipes for water distribution is a mechanical joint type (PTC G 30) using a push ring, claw, inner core, rubber ring, and T-head bolts, and the joint has a disengagement prevention function. *The above joining components are included with the product.

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It is ideal for piping within factories, piping within facilities, and sewer piping. The internal thread type is equipped with a "stem lock function" that prevents bending of the valve stem and damage from excessive torque. *Except for 50mm, the face-to-face dimension is shorter compared to the JWWA B120 standard. (The face-to-face dimensions of JWWA B120 and JIS B2031 are the same only for 50mm.)

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It is possible to directly connect a metal sheet partition valve to polyethylene pipes for water distribution. The connection on the secondary side of the partition valve is compatible with various types of pipes, making it easy to convert and connect pipelines. 【Features】 - The metal sheet partition valve has a polyethylene pipe insertion port that meets the JWWA K 144 standard for excellent seismic resistance and can be connected using EF joints. - For the PE pipe insertion port × insertion type, G-Link and P-Link can be used for GX cast iron pipes, N-Link for NS type E pipes, and a disengagement prevention collar for K type cast iron pipes, enhancing the seismic resistance of the pipeline. - The PE pipe insertion port × PVC pipe receiving type allows for direct insertion and connection of rigid PVC pipes and steel pipes to the valve. The claw ring and rubber ring provide sufficient disengagement prevention performance. - An epoxy resin powder coating is applied to the inner and outer surfaces, and stainless steel is used for the valve rod, cap, and tightening bolts, achieving high durability and corrosion resistance. - Smooth opening and closing operations are facilitated by a resin thrust bearing. - Environmentally friendly CAC411 (Biwa Light) is used.

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This is a soft-seal shut-off valve that can be piped using EF joints, made from earthquake-resistant polyethylene pipes joined without bolts. The main body of the shut-off valve is based on Excel Pro, which conforms to JWWA B120, and features a "stem lock function" to prevent valve damage due to over-torque. 【Features】 - The polyethylene pipe and soft-seal shut-off valve are securely joined using a sleeve. It has the strength to withstand a disengagement force that exceeds the breaking strength of the polyethylene pipe. - Piping connections can be made with the reliable EF joint, which has a wealth of proven results. - The structure eliminates the flange on the valve rod, and instead, a thrust collar is provided to prevent damage from over-tightening of the cap, incorporating the stem lock function. If excessive torque occurs, the friction resistance of the thrust collar stops the rotation of the valve rod, preventing damage to the valve rod and the screw thread. - The slim design and sharp-edged rubber valve seat provide high sealing performance. - By eliminating flanges for the tightening of the valve box and lid, it has become lighter than conventional products, improving portability and workability.

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Air pockets that occur in pipelines move along the upper part of the pipeline in the direction of flow and accumulate at the peak point of the pipeline. These air pockets hinder the flow of liquid, causing the pump to require more output and operating time than necessary. Additionally, in low-pressure and low-flow pipelines, they can cause a complete stoppage of flow known as an "air lock." By properly installing air valves at locations where air pockets occur, it is possible to reduce the energy required for water delivery.

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This is a flange-type soft seal shut-off valve that complies with JWWA B 120 standards. The valve body is rubber-lined, providing high water-stopping capability, and the straight design of the valve bottom prevents debris accumulation. It is equipped with a "stem lock function" to prevent bending of the valve stem and damage from excessive torque.

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The valve body is made with rubber lining, providing high water-stopping capability, and the straight design of the valve bottom prevents debris accumulation. It features a rational design that maintains sufficient strength and stable functionality while being lightweight and compact. 【Features】 - This product has passed the JWWA B 120 type test. - It uses chlorine-resistant EPDM (EJV-70) for the rubber valve seat, significantly enhancing durability against chlorine. - The male thread is a one-piece design that is firmly pressed and fixed to the valve body, ensuring stable opening and closing operations without putting stress on the rubber lining of the valve body. - The valve body and valve box are equipped with long guides that have a large pressure receiving area, allowing for stable operation over an extended period. - The valve body is wedge-shaped, resulting in a small water-stopping torque and excellent water-stopping capability. For more details, please contact us or download the catalog.

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This is a soft-seal shut-off valve compatible with shoulder joints (S type) commonly used in exposed piping such as temporary piping and plant piping. It not only significantly reduces weight compared to construction using flange short pipes but also enables labor-saving in piping and reduces total costs. 【Features】 - It is compatible with shoulder joint type (S type), groove joint type (G type), and crown joint type (C type), which are widely used in temporary piping and plant piping. - Since the joint is integrated with the soft-seal shut-off valve, it eliminates the need for flange short pipes, achieving weight reduction and reducing total costs through smaller construction space and shorter construction time. - The threaded connection is firmly press-fitted into the valve body, ensuring stable opening and closing operation of the valve body without putting pressure on the rubber lining of the valve body. - The rubber valve seat uses chlorine-resistant EPDM, improving durability against chlorine. For more details, please contact us or download the catalog.

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The installation is simple, requiring only the insertion of the pipe and tightening of the nut. The claw ring firmly holds the outer circumference of the pipe to prevent disconnection. 【Features】 - After inserting the pipe into the valve, simply remove the spacer and tighten the nut, which reduces installation time. - Flange joints are unnecessary, eliminating the need for conventional PVC pipe fittings (such as short pipes and flanges), thereby reducing total costs. - The claw ring and rubber ring sufficiently meet the disconnection prevention performance standards of the Japan Water Works Association (JWWA K 131). - It can also be used with steel pipes, making it suitable for temporary piping. - It is compatible with shallow burial for all nominal diameters. - Applicable pipe types: Rigid polyvinyl chloride pipes (excluding VU pipes with a nominal diameter of 50mm), steel pipes, and polyethylene double-layer pipes for water supply (Type 1) (only nominal diameter of 50mm). For more details, please contact us or download the catalog.

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This is a flange-type external screw soft-seal shut-off valve that complies with JWWA B 120 standards. The valve body is rubber-lined, providing high water-stopping capability, and the straight design of the valve bottom prevents debris accumulation. By eliminating the flanged connection for the valve box and cover, it has become lighter than conventional products.

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The valve body is lined with rubber, providing high water-stopping capability and preventing debris accumulation at the bottom of the valve. It features a rational design that maintains sufficient strength and stable functionality while being lightweight and compact. **Features** - This product has passed the JWWA B 120 type test. - It uses chlorine-resistant EPDM (EJV-70) for the rubber seat, significantly improving durability against chlorine. - The threaded connection is firmly press-fitted into the valve body, ensuring stable opening and closing operations without putting stress on the rubber lining of the valve body. - Both the valve box and the valve body are equipped with long guides that have a large pressure-bearing area, allowing for stable operation over an extended period. - The valve body has a wedge shape, resulting in low water-stopping torque and excellent water-stopping capability. - The compact design makes it easy to handle. For more details, please contact us or download the catalog.

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Made of stainless steel, it excels in corrosion resistance and durability, allowing for safe use over long periods. The lost-wax casting method enhances its appearance and improves quality. 【Recommended Installation Locations】 Coastal areas, exposed piping, outdoor piping, difficult-to-replace installation locations, stainless piping, frequently used areas 【Features】 〇 The dimensions between faces and flange dimensions are compatible with JWWA B122. 〇 The gland section uses an O-ring type that excels in water-stopping capability, making maintenance easy as it can be replaced during water flow. 〇 Equipped with a leg base for easy storage and installation work (only for 7.5K). 〇 The 200 nominal diameter comes with a lifting eye nut. 〇 By changing the packing and other components to heat-resistant specifications, it can also be used for hot spring piping (hot spring specifications). For more details, please contact us or download the catalog.

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- The insertion port × insertion port type can be joined without flanges to various cast iron pipes using a metal sheet partition valve. By using G-Link and P-Link for GX type cast iron pipes, N-Link for NS type E pipes, and a disengagement prevention collar for K type cast iron pipes, the seismic resistance of the piping can be improved. - The insertion port × PE pipe insertion port type can be directly joined to polyethylene pipes for water distribution, which excel in seismic resistance according to JWWA K 144 standards, using EF joining. - The insertion port × PVC pipe receiving port type allows for direct insertion and joining of rigid PVC pipes and steel pipes to the valve. The claw ring and rubber ring provide sufficient disengagement prevention performance. - By applying epoxy resin powder coating to the inner and outer surfaces and using stainless steel for the valve rod, cap, and tightening bolts, high durability and corrosion resistance have been achieved. - Environmentally friendly CAC411 (Biwa Light) is used.

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The inner and outer surfaces are coated with epoxy powder resin, and by using stainless steel for the valve rod, cap, and tightening bolts, high corrosion resistance has been achieved. By adopting lead-free copper alloy Biwalite (CAC411) for the valve seat and threaded parts, it has become a lead-free compliant product. What is Biwalite? Biwalite is a lead-free copper alloy standardized as CAC411 (JIS H 5120), which has pressure resistance and wear resistance equivalent to CAC406. 【Features】 - The inner and outer surfaces are coated with epoxy resin powder, and stainless steel is used for the valve rod, cap, and tightening bolts, achieving high corrosion resistance. - It is a lead-free compliant product that uses lead-free copper alloy Biwalite (CAC411) for the valve seat and threaded parts. - Smooth opening and closing operations are facilitated by the resin thrust bearing. - It features a metal sheet structure that is optimal for pipelines concerned about rubber degradation due to high concentrations of chlorine. For more details, please contact us or download the catalog.

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For diameters of 300mm or less, stainless steel is used for the valve rod and tightening bolts, improving durability and corrosion resistance. The inner and outer surfaces are standardly coated with epoxy resin powder, which suppresses rust and is ideal for preventing red water. 【Features】 - For diameters of 300mm or less, stainless steel is used for the valve rod and tightening bolts, improving durability and corrosion resistance. - The inner and outer surfaces are standardly coated with epoxy resin powder, which suppresses rust and is ideal for preventing red water. - The shaft section employs an O-ring sealing method, allowing for replacement even during water flow, making it suitable for maintenance management. - It comes with hooks and eye nuts for lifting, making handling during installation easy. For more details, please contact us or download the catalog.

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It has performance equivalent to the JWWA B 138 standard butterfly valve, and by attaching a flow control plate with comb-like notches and numerous holes on the downstream side of the valve body, it disperses the water flow into fine jet streams, suppressing the occurrence and growth of cavitation. With low vibration and low noise, it enables "throttling operation," which was difficult with conventional butterfly valves, allowing for extensive flow control. 【Features】 - The flow control plate with comb-like notches and numerous holes disperses the water flow into fine jet streams, compensating for the negative pressure on the downstream side of the valve body and suppressing the occurrence and growth of cavitation. - Since the flow control plate can suppress the occurrence and growth of cavitation, cavitation characteristics are improved, making throttling operation possible, which was previously difficult with conventional butterfly valves. Additionally, the generated cavitation is finely dispersed, reducing the vibration and noise that occur during throttling operation, thus expanding the range of use. - The wetted areas on the inner surface are coated with a powder coating known to be resistant to cavitation, enhancing durability and also effectively addressing red water issues. - It is compatible with both vertical and horizontal orientations. For more details, please contact us or download the catalog.

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The butterfly valve meets the JWWA B 138 standard and has equivalent performance, while being lower in height compared to standard products. Additionally, the structure has the operating cap at the center of the valve, making the installation of the valve chamber easier. 【Features】 - It adopts an eccentric structure where the valve rod does not pass through the rubber valve seat, resulting in less localized friction and fatigue on the rubber valve seat, allowing for safe long-term use. - The valve box seat is treated with hard chrome plating, and an O-ring type rubber valve seat is attached to the valve body side. This structure ensures that the rubber valve seat is adequately pressed against the valve box seat by fluid pressure, resulting in less wear and fatigue of the rubber valve seat and balanced sealing. As a result of this structure, the sealing performance improves as the pressure increases. - Since the rubber valve seat is of the O-ring type, there is less resistance around the entire seat area, which reduces the operating torque during closure, allowing for smooth opening and closing. For more details, please contact us or download the catalog.

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The valve rod adopts an eccentric structure that does not pass through the rubber valve seat, resulting in reduced localized friction and fatigue on the rubber valve seat. Additionally, the valve box seat area is coated with hard chrome, ensuring stable sealing performance. The structure is also designed to be simple, making it ideal for long-term use. 【Features】 - The eccentric structure that does not allow the valve rod to pass through the rubber valve seat minimizes localized friction and fatigue on the rubber valve seat, and the simple design ensures safe long-term use. - The valve box seat area is coated with hard chrome, and the structure includes an O-ring type rubber valve seat on the valve body side, allowing the rubber valve seat to be pressed against the valve box seat area by fluid pressure, which reduces wear and fatigue on the rubber valve seat and provides balanced sealing. Furthermore, this structure improves sealing performance as the pressure increases. - The O-ring type rubber valve seat results in less resistance around the entire seat area, reducing the operating torque during closure, allowing for smooth opening and closing. - It is compatible with both vertical and horizontal configurations. For more details, please contact us or download the catalog.

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This is an underground fire hydrant with a stainless steel body that improves corrosion resistance. By adopting a design that stores the valve body in the lid, it achieves compactness and ensures a smooth flow path. The outlet is lowered 80 mm from the cap to maximize safety and operability during firefighting. Features: - The design eliminates waste, achieving both compactness and a smooth flow path. - By separating the height of the outlet and cap by approximately 80 mm, it allows for safer and smoother operation even when using a standpipe. - The body, lid, and cap are made of stainless steel and are unpainted, preventing paint peeling and deterioration over time, thus reducing rust formation. The outlet flange is also made of stainless steel, enhancing strength. - The flange connection bolts are visible from the top, making installation and removal easy. - By eliminating nuts from the assembly bolts, the threaded parts are protected from sand and other debris, and disassembly maintenance can be performed with just a T-shaped wrench. For more details, please contact us or download the catalog.

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By creating an 80mm step between the mouthpiece and the cap, we maximized safety and operability during use. Features: - The design is efficient, achieving both compactness of the product and a smooth flow path. - The cap is made of stainless steel, which reduces paint peeling, paint loss, and rust caused by aging. - The body is coated with powder on both the inside and outside, and key components such as the mouthpiece flange, ground, cap, valve rod, and bolts are made of stainless steel, ensuring high durability and corrosion resistance. Using stainless steel for the bolts significantly improves durability and corrosion resistance. - The flange connection bolts are visible from the top, making installation and removal easy. - By eliminating nuts from the assembly bolts, the threaded parts are protected from sand and other debris, and maintenance can be performed with just a T-shaped wrench. For more details, please contact us or download the catalog.

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The single port design protects the threaded parts from sand and other debris by eliminating the nut from the assembly bolt, allowing for disassembly with just one T-shaped wrench. Stainless steel is used for the valve body, valve rod, and flange. By employing a hard lock nut at the valve seat holding section, the workability during valve seat replacement has been improved. 【Features】 75mm - The nutless structure protects the threaded parts from sand and allows for disassembly with just one T-shaped wrench. There is no concern about galling with stainless steel bolts, enabling maintenance to be performed with peace of mind. - By using stainless steel for the flange, fittings, retaining rings, valve body, valve rod, and assembly bolts, high durability and corrosion resistance have been achieved. The use of a hard lock nut at the valve seat holding section has improved workability during valve seat replacement. - Exhaust valves and air valves are also available in the lineup. Common - Both the interior and exterior surfaces are coated with epoxy resin powder, providing excellent aesthetics and making it ideal for red water countermeasures. - The single port and double port are lift-type (valve rod rising) fire hydrants that meet JWWA B 103 standards. *For more details, please contact us or download the catalog.

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This is a reliable JWWA135 standard ball-type fire hydrant. Since 2013, the flange has been changed to stainless steel to suppress rust and enhance strength to withstand the use of standpipes. 【Features】 〇 This fire hydrant has passed the performance test of the JWWA B 135 standard. 〇 Compared to lift-type fire hydrants, it has a lower height dimension, making it ideal for shallow burial, and it is lightweight and compact. 〇 The ball structure allows for a straight water flow, reducing flow loss. 〇 The specially processed valve box prevents jetting that occurs during minor openings for water flow confirmation. 〇 Both the inner and outer surfaces are coated with epoxy resin powder to suppress rust formation. 〇 By using stainless steel for the reduction gear, flange, fittings, push ring, ball valve body, and assembly bolts, high durability and corrosion resistance have been achieved. 〇 By adopting the same flange as the JWWA B 103 fire hydrant, rust formation is suppressed, and in the event of damage to the flange, the entire flange assembly can be easily replaced by simply removing the bolts. *For more details, please contact us or download the catalog.

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By establishing an 80mm step between the nozzle and the cap, we maximized safety and operability during firefighting. Features: - This is a drainage valve for 50mm piping, which can also be used with underground fire hydrants and water supply valves. *Please pay attention to the discharge volume when using it as a fire hydrant. - The use of stainless steel for the cap improves corrosion resistance and suppresses rust formation. - The body is coated with powder paint on both the inside and outside, and stainless steel is used for key components such as the nozzle flange, ground, cap, valve rod, and bolts, achieving high durability and corrosion resistance. - It complies with the drainage valve specifications of the Yokohama City Waterworks Bureau. For more details, please contact us or download the catalog.

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Firefighting training using underground fire hydrants installed in the community, such as at school playgrounds and parks, will be possible. A Machino-style connection port is provided on the inflow side, allowing water to be supplied from a pump truck or an actual fire hydrant using a 65A fire hose. *We also offer a 30-day rental service that can be used only when needed for the required period. 【Features】 - Equipped with a Machino-style connection port, allowing water to be supplied from actual fire hydrants or pump trucks. - Underground fire hydrants can be freely selected from our various hydrants. *The photo and drawings show the valve body storage type underground fire hydrant Camel (standard specification). - The weight in standard specification is 45 kg, making it possible to transport with a cart or by two people. - An emergency water supply kit (optional) can be attached to the hydrant's nozzle, allowing it to be used as an emergency water supply in case of an emergency. - Using a rapid air valve (Machino style) or a rapid air valve with a diameter of 75 mm, it can also be used in training sessions for fire hydrants and air valves at various water service offices. - The side message board (optional) can display the name of the office and various slogans freely. - A 30-day rental contract is also available. *For more details, please contact us or download the catalog.

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A rapid air valve made of stainless steel that enhances corrosion resistance and durability, contributing to the long lifespan of piping. It can be used safely for an extended period. The "SCS14" made of high corrosion-resistant stainless steel is also ideal for salt damage prevention. Its lightweight and compact design allows for easy installation and maintenance. 【Features】 - The "SCS14" uses high corrosion-resistant stainless steel for all major components, including the valve box and lid, as well as bolts, significantly reducing the occurrence of rust and corrosion, and ensuring excellent durability. - The exhaust performance meets the standard values of JWWA B 137 for rapid air valves used in water supply. - The φ25mm model has a floating valve body connected to a movable valve body, allowing for smooth and reliable operation by applying the principle of leverage. - The lid comes standard with screws for pipe installation, making it possible to attach piping at any time. *Note: Only the 75mm model is optional. Additionally, by attaching the optional dedicated emergency town nozzle (65A), it can be used for emergency water supply, etc. For more details, please contact us or download the catalog.

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The JWWA B 137 rapid air valve for water supply has equivalent performance, is lightweight and compact, making installation and maintenance easy. Features: - The built-in disc spring in the lid absorbs the expansion of water during freezing, preventing damage to the valve. - Major components are made of stainless steel, providing excellent aesthetics and allowing for long-term reliable use. - Performance is equivalent to the JWWA B 137 rapid air valve for water supply with a diameter of 25 mm. - It has a flange shape with a height of 242 mm and a weight of 9 kg, making it lightweight and compact, ideal for shallow burial. - Installation in narrow spaces and disassembly and assembly during maintenance can be easily performed. - The floating valve body and the movable valve body are connected using a unique method that applies the principle of leverage, allowing for smooth and reliable operation. - The ball cock is made of stainless steel (SCS13) and has a freeze damage prevention feature, ensuring long-term use is safe. - It is a lead-free product that does not use any copper alloys containing lead. - By attaching an emergency town nozzle for air valves, pressure measurement and the installation of emergency water supply taps are possible. For more details, please contact us or download the catalog.

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Due to its auxiliary valve function, maintenance can be performed without water interruption. The use of stainless steel for the main components enhances aesthetics and ensures reliable long-term use. Features: - The main components are made of stainless steel, providing excellent aesthetics and long-term reliability. - Performance is equivalent to JWWA B 137 rapid air valves for water supply with a diameter of 25 mm. - Available in three types: Type 2, Type 3, and Type 4, compatible with many pipelines. - The water intake section is always in circulation due to the flow in the main pipe, making it less prone to freezing. - The auxiliary valve function allows for easy opening and closing, enabling disassembly and inspection without water interruption. - The valve seat of the auxiliary valve is made of stainless steel with a metal touch, allowing for shut-off with low torque. - The height dimension from the flange surface is kept low at 75 mm, making it suitable for installation in places with height restrictions, such as bridge attachments, or where shallow burial is required. - The depth of entry from the flange surface is compactly designed at 95 mm. For more details, please contact us or download the catalog.

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A rapid air valve made of stainless steel that enhances corrosion resistance and durability, contributing to the long lifespan of piping. The "SCS14" made from high corrosion-resistant stainless steel is also ideal for salt damage prevention. 【Features】 - The "SCS14" uses high corrosion-resistant stainless steel for all major components, including the valve body and cover, as well as bolts, significantly reducing the occurrence of rust and corrosion, and providing excellent durability. - The exhaust performance meets the standard values of JWWA B 137 for rapid air valves used in water supply. - The cover is equipped with standard threads for pipe installation, allowing for easy attachment of piping at any time. By installing piping, it prevents the spray generated during the operation of the air valve from scattering onto the main pipe, thereby preventing corrosion of the main pipe. Additionally, by attaching an optional dedicated emergency town nozzle (65A), it can be used for emergency water supply, etc. - It is a lead-free product that does not use any copper alloys containing lead. - The ball cock is equipped with a freeze damage prevention feature. For more details, please contact us or download the catalog.

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With its unique structure, disassembly (opening the pressure relief valve to removing the float valve guide) takes about 15 seconds! The compact design achieves lightweight construction, making it easy to handle! Since the nozzle is built-in, you can remove the cover and take out internal parts for various applications such as pipe cleaning, temporary water supply, and water pressure measurement. Features: - The positioning pin prevents assembly mistakes of the arm piston and indicates the correct assembly position, allowing for safe disassembly and assembly. - The compact design achieves lightweight construction, making it easy to handle. - The anti-drop protrusions at the bottom of the valve box prevent internal parts like the float valve and movable valve from falling into the main pipe. - Both the inner and outer surfaces are coated with epoxy resin powder to reduce rust formation. - Bolts are made of stainless steel (SUS304), ensuring reliability for long-term use. For more details, please contact us or download the catalog.

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This is a rapid air valve designed for the use of air valves in forced exhaust, pipeline cleaning, and water supply operations, compatible with the installation of a dedicated ball pusher. *We do not handle the ball pusher body. Features - By attaching the ball pusher body, the air valve can be used for various applications such as forced exhaust from the air valve, pipeline cleaning, and water supply operations. - Performance is equivalent to JWWA B 137 rapid air valves for water supply (excluding φ200 mm). - Both the inner and outer surfaces are coated with epoxy resin powder to suppress rust formation. - The pressure relief valve reduces the initial operating torque of the ball pusher. - It complies with the Tokyo Metropolitan Waterworks Bureau specifications for water supply piping materials. For more details, please contact us or download the catalog.

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This is a stainless steel rapid air valve that can release air trapped in the riser pipe of an underground fire hydrant. The connection part is a Machino-style female fitting of 65A, allowing for easy attachment and detachment to the nozzle of the underground fire hydrant. Features: - The main components are made of stainless steel, providing excellent aesthetics and ensuring safe use for an extended period. - The connection part is a plug-type intermediary fitting (Machino-style female 65A), enabling connection to the nozzle part of the underground fire hydrant (Machino-style male 65A). - It is ideal for short-term use to release air, as air bubbles tend to accumulate in the riser pipe during initial water flow. - It is equipped with a pressure relief valve, allowing for the safe removal of the air valve by releasing residual pressure. - The exhaust performance meets the standard values of JWWA B 137 for rapid air valves used in water supply. - The floating valve body and the movable valve body are connected, applying the principle of leverage for smooth and reliable operation. For more details, please contact us or download the catalog.

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The φ25-75mm is suitable for shallow burial. It is made of ductile cast iron (FCD450-10) and features reliable internal and external powder coating. Features: - The compact design structure makes φ25-75mm ideal for shallow burial. - Both the internal and external surfaces are coated with epoxy resin powder to suppress rust formation. - The bolts are made of stainless steel (SUS304), ensuring long-term use is safe. - The φ25mm has a floating valve body connected to a movable valve body, allowing for smooth and reliable operation by applying the principle of leverage. - The ball cock is made of stainless steel (SCS13) and includes a freeze damage prevention feature, ensuring safety even with long-term use. A long lever type for easy operation is also available. - The φ25-100mm is a lead-free product that does not use any copper alloys containing lead. For more details, please contact us or download the catalog.

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The air layer created inside the valve prevents foreign substances from adhering to the shut-off section. You can choose from stainless steel (SCS14A) or nylon resin. Features: - This air valve is designed for use in piping where fluids containing foreign substances flow. - The air layer created by the low-position float and conical valve box blocks debris and foreign substances, preventing shut-off failures and operational issues. - The unique rolling seal structure prevents the valve seat from sticking. - It accommodates both exhaust and intake, preventing the piping from becoming vacuumed. - The water hammer prevention option protects the air valve and piping by reducing exhaust volume while maintaining intake performance. For more details, please contact us or download the catalog.

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The air layer created inside the valve prevents foreign substances from adhering to the shut-off section. You can choose between stainless steel (SCS14A) and nylon resin. *The stainless steel body part is coated with polyester on both the inside and outside. The flange part is uncoated. Features: - A rapid air valve designed for use in medium to large diameter piping where fluids containing foreign substances flow. - The air layer created by the low-position float and conical valve box blocks debris and foreign substances, preventing water shut-off failure and operational issues. - The unique rolling seal structure prevents the valve body from sticking. - It accommodates both exhaust and intake, preventing the piping from becoming vacuumed. - The water hammer prevention option protects the air valve and piping by reducing exhaust volume while maintaining intake performance. For more details, please contact us or download the catalog.

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During water flow, a large amount of exhaust is performed, and after the water reaches the valve, the diaphragm-structured valve body closes gently, preventing sudden shut-off and suppressing water hammer. Features: - The diaphragm-structured valve operates gently and quietly, accommodating large exhaust and intake while preventing rapid pressure increases due to sudden shut-off. - The upper air valve performs exhaust under pressure. - Even when there is no water in the pipeline, the valve remains closed, preventing the intrusion of insects and foreign objects into the pipeline. - The rolling seal structure ensures stable operation and water-tightness over a long period. - By using a drain valve specification (with a ball valve), drainage can be performed from a 50mm drain outlet by operating only the ball valve. For more details, please contact us or download the catalog.

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By properly controlling the air in the piping with an air valve, we support the stabilization of water supply volume and the reduction of water supply energy. Features: - The rolling seal structure ensures stable operation and leak-proof performance over a long period. - The simple design allows for easy maintenance. - Made from reinforced nylon resin, it is a lightweight and compact air valve. For more details, please contact us or download the catalog.

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The air layer created within the valve prevents foreign substances from adhering to the shut-off section, supporting the protection of the piping and the reduction of water supply energy through appropriate exhaust. Features - The air layer generated by the low-position float and conical valve box blocks debris and foreign objects, preventing poor shut-off and malfunction. - The unique rolling seal structure prevents the valve seat from sticking. For more details, please contact us or download the catalog.

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By properly exhausting the air in the piping with an air valve, we support the stabilization of water supply volume and the reduction of water supply energy. Features: - This cast iron air valve is optimal for high-pressure piping up to 4.0 MPa (supports exhaust only under pressure). - The rolling seal structure ensures stable operation and water tightness over a long period. - Its simple design allows for easy maintenance. For more details, please contact us or download the catalog.

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High-tension bolts are used for the assembly between the valve box and the auxiliary valve box, and it features a top GF specification. The main components, including the valve box and valve body, are made of stainless steel, providing excellent durability and corrosion resistance. Features: - The high-tension bolts used for the assembly between the valve box and the auxiliary valve box, along with the top GF specification, can withstand bending loads during earthquakes. - The stainless steel valve body SUS BALL has small holes that allow the expansion pressure from freezing on the outside to escape inward, preventing damage to the valve body due to freezing. - The main components, including the valve box and valve body, are made of stainless steel, ensuring excellent durability and corrosion resistance, allowing for safe long-term use. For more details, please contact us or download the catalog.

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High-grade repair valve that enhances corrosion resistance and durability by using stainless steel for major components such as the valve box and valve body, based on the structure of JWWA B 126 water supply repair valves. It contributes to the long lifespan of pipelines. Please use it in conjunction with Classic Plus, Air Light rapid air valves, etc. Features: - Made of "SCS14," stainless steel is used not only for major components like the valve box and valve body but also for bolts, significantly reducing the occurrence of rust and corrosion, achieving high durability and corrosion resistance. - Since it is uncoated, there is no concern about cracking or chipping that can occur with internal and external powder coating, eliminating the need for repair painting. - The valve seat uses PTFE with an extremely low friction coefficient, providing high sealing performance with low operating torque. For more details, please contact us or download the catalog.

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It will be possible to operate the repair valve inside the manhole from above ground. Features: - This is a hook-type lever repair valve that can be operated from above ground using a manhole opening tool. When open, the lever is vertical, and when closed, the lever is horizontal, clearly indicating the open and closed states with arrows and O-S markings. - By using a simple lever mechanism and incorporating stainless steel for major components such as the valve box and valve body, rust and corrosion are minimized, providing excellent durability for long-term, worry-free use. - Since it is unpainted, there is no concern about cracking or chipping that can occur with powder coating, and there is no need for repair painting. For more details, please contact us or download the catalog.

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The "SCS14 model" also uses SCS14 stainless steel for the valve box. It is ideal for extending the lifespan of piping. Please use it in conjunction with the sewage air valve. Features: - By adopting a ball valve body made of SCS14, it minimizes corrosion caused by hydrogen sulfide generated from sewage. It also reduces the occurrence of scratches due to sand ingress in the valve body. - Stainless steel is used as standard for the valve rod, gland, and bolts, achieving high durability and corrosion resistance. - The seat uses PTFE with an extremely low friction coefficient, providing high sealing performance with low operating torque. - It can be used safely for an extended period. - It is compatible with various constant water perforation works with a full port. For more details, please contact us or download the catalog.

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High-tension bolts are used for the assembly between the valve box and the auxiliary valve box, and it features a GF specification on the top surface. The valve body, valve rod, gland, stopper, lever, and bolts are made of stainless steel, ensuring excellent durability. Features: - The high-tension bolts used for the assembly between the valve box and the auxiliary valve box, along with the GF specification on the top surface, can withstand bending loads during earthquakes. - The stainless steel valve body SUS BALL has small holes that allow the expansion pressure from freezing on the outside to escape inward, preventing damage to the valve body due to freezing. - The valve body, valve rod, gland, stopper, lever, and bolts are made of stainless steel, providing excellent durability and allowing for safe long-term use. - The O-rings on both sides of the valve rod prevent water from entering the shaft area, reducing rust and corrosion at the shaft. - The 75mm×150L and 100mm models are full port and suitable for various constant water perforation works. For more details, please contact us or download the catalog.

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The valve stem, gland, stopper, lever, and bolts are made of stainless steel, achieving high durability and corrosion resistance. The stainless steel valve body prevents freezing damage to the valve body. Features: - By adopting a stainless steel (SCS13) ball valve body, the occurrence of scratches due to sand ingress is minimized, enhancing resistance to leakage at the valve seat. - The valve stem, gland, stopper, lever, and bolts are also made of stainless steel as standard, achieving high durability and corrosion resistance. - O-rings on both sides of the valve stem prevent water ingress into the shaft, reducing the occurrence of rust and corrosion in the shaft area. - Both the interior and exterior are coated with epoxy resin powder, minimizing rust formation. - A wide range of sizes is available to accommodate various burial depths. - The φ75×150L and φ100 models are full port and suitable for various continuous water drilling operations. For more details, please contact us or download the catalog.

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Stainless steel has been adopted for the valve rod, gland, stopper, lever, and bolt, achieving high durability and corrosion resistance. The stainless steel valve body prevents freezing damage to the valve body. Features: - Can be used as a repair valve for rapid air valves of 150mm and 200mm, allowing for miniaturization of the air valve chamber. - By adopting a stainless steel (SCS13) ball valve body, it reduces the occurrence of scratches caused by sand sticking to the valve body. - Stainless steel is standardly used for the valve rod, gland, stopper, lever, and bolt, achieving high durability and corrosion resistance. - The O-rings on both sides of the valve rod prevent water ingress into the shaft, reducing the occurrence of rust and corrosion in the shaft area, allowing for safe long-term use. - Both the interior and exterior are coated with epoxy resin powder to suppress rust formation. - Available in two types: lever type and cap type. - Complies with the specifications of the Tokyo Metropolitan Waterworks Bureau. For more details, please contact us or download the catalog.

• valve
• Piping Materials