清水工業 List of Products and Services

The valve rod, gland, stopper, lever, and bolt are made of stainless steel, achieving high durability and corrosion resistance. Features: - Complies with JWWA B 126 standards. - Stainless steel is used as standard for the valve rod, gland, stopper, lever, and bolt, ensuring high durability and corrosion resistance. - The three O-rings on both sides of the valve rod prevent water from entering the shaft area, reducing the occurrence of rust and corrosion, allowing for safe long-term use. - Both the interior and exterior are coated with epoxy resin powder to suppress rust formation. - It accommodates various burial depths with a wide range of spacing options. - The 75mm x 150L and 100mm 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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• Piping Materials

The upper flange has a nominal diameter of 75 mm, and the lower flange has a nominal diameter of 100 mm, making it an ideal reducer valve for installing 75 mm fire hydrants or air valves on a 100 mm riser pipe. Features: - This repair valve complies with the JWWA B 126 standard, ensuring reliability. - With an upper flange of 75 mm and a lower flange of 100 mm, it is perfect for converting an existing double outlet fire hydrant to a single outlet fire hydrant or for changing a double outlet air valve from 100 mm to a rapid air valve of 75 mm. - By adopting a stainless steel (SCS13) ball valve body, it minimizes the occurrence of scratches due to sand or other debris. - Stainless steel is also used as standard for the valve rod, gland, stopper, lever, and bolts, achieving high durability and corrosion resistance. - Both the interior and exterior are coated with epoxy resin powder paint to prevent rust formation. For more details, please contact us or download the catalog.

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It is compatible with Camel 50 (underground single outlet drain valve 50mm) and rapid air valve φ25 (flange 50mm). Features: - It is a repair valve for water supply that complies with JWWA B 126. - Both the interior and exterior are coated with epoxy resin powder to suppress rust formation. - It can be connected to a JIS 50mm flange. - It can be used in conjunction with Camel 50 (underground single outlet drain valve 50mm) and others. For more details, please contact us or download the catalog.

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• Piping Materials

Valves such as shut-off valves and fire hydrants may experience damage, bending of the valve stem, or damage to the threads due to excessive torque during opening and closing. The torque limiter prevents excessive torque from being applied to the target valve during operation by slipping (freewheeling) when the set torque is exceeded, thereby neutralizing the excessive torque that would burden the valve. During freewheeling, this device turns with a clicking action, making it easy to determine when torque has been applied. Features: - The body is made of stainless steel (SCS13), providing excellent corrosion resistance and durability, allowing for safe use over an extended period. - It can withstand approximately 10,000 freewheeling (slipping) operations as a guideline for usage. If the number of uses exceeds this, the operating torque of the limiter may decrease due to spring fatigue. In such cases, it can be addressed with spring replacement and repair (for a fee). - It can be used for training operators and to prevent product damage during actual work. For more details, please contact us or download the catalog.

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As the AVK Group, we handle a variety of valves, fittings, fire hydrants, and air valves that meet ISO, EN, BS, DIN, AWWA, and AS standards for use in water supply, sewage, gas, fire protection, and industrial fields.

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• Pipe Fittings
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We provide international standard valves suitable for electricity, chemicals, petroleum, gas, mining, seawater desalination, food, paper and pulp, water supply and sewage plants, ships, dams, air conditioning, agriculture, building facilities, fire protection equipment, and more. The AVK Group companies offer optimal valves such as butterfly valves, ball valves, dampers, knife gate valves, and discharge valves.

• valve
• Piping Materials