ミハナ製作所 List of Products and Services

The "LKANTAE-S" is a safety valve specifically developed for liquids, achieving a high level of safety and stability with its screw-in lift design. It focuses on the flow of liquids and features an internal structure that does not obstruct it. This results in enhanced safety and stability by reducing unstable operations such as chattering. Additionally, like other series, it is made entirely of stainless steel, making it resistant to environmental factors and providing superior corrosion resistance. 【Features】 ■ Made entirely of stainless steel, like other series ■ Strong against environmental factors and offers superior corrosion resistance ■ Utilizes a more precise and high-level metal sheet ■ Lightweight and compact ■ Structure specialized for liquids *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

We have started lending demo units of the screw-in safety valve 'SC120/SD120' for water tube boilers and the open-type screw-in small safety valve 'M3D' for compressors and receiver tanks! We have established a strict quality inspection system, including in-house material analysis, allowing us to provide products that emphasize "high quality." 【Features】 <SC120 (full flow type) / SD120 (lift type)> ■ Fully stainless steel sealed lever type ■ Uses PTFE sheet in the valve body to prevent leaks caused by foreign matter adhesion <M3D> ■ Compact yet excellent discharge capacity ■ Outstanding airtightness in the seat area *Demo units are available for lending. After return, product condition checks and analysis are also possible. For more details, please refer to the application form in the "PDF Download." Feel free to contact us with any inquiries.

• Other safety equipment
• Circuit breakers and switches

Our safety valves have 'absolutely no pre-leakage.' Thanks to our uniquely developed special technology, we have achieved the phenomenon of 'simultaneous start and discharge without pre-leakage.' At our company, which excels in such technology, we offer a total of 49 types of safety valves and relief valves. We have a rich lineup, including full-flow products that are strong against back pressure, as well as lift-type and weight-type valves. We have established a strict quality inspection system in-house, pursuing high quality. [Selection Guide Introduction Contents] ■ Material ■ Applicable Fluids ■ Size ■ Pressure ■ Endurance Temperature *For more details, please refer to the PDF catalog. Feel free to contact us.

• others

The "Safety Valve with Non-Contact Detection Sensor" is a product that allows for the remote confirmation of the opening and closing of safety valves. It is useful in locations where visual confirmation is difficult, such as high places or distant areas, and eliminates the need to approach the safety valve, thereby preventing injuries and accidents for workers. 【Features】 ■ Immediate understanding of safety valve operation, preventing delays in response ■ Available in two types: general specification and sanitary specification ■ Contributes to IoT implementation *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• others

Thanks to our uniquely developed special technology, our safety valves have absolutely no pre-leakage. Most people believe that safety valves leak, but with Mihana Manufacturing's "wrapping technology," it is possible to prevent leakage. 【Secrets of Leakage Prevention】 - Adopts surface contact instead of line contact - "Start of blowing" and "blowing out" occur simultaneously - Achieves a high-precision flat surface, etc. *For more details about the secrets of leakage prevention, please refer to the PDF materials or feel free to contact us.

• Other safety equipment
• Circuit breakers and switches

The "KANTA" series (commonly known as Kanta-kun) uses stainless steel as its material and features an environmentally robust screw-in lift type safety valve. Both lever and non-lever versions are standard specifications. Additionally, due to the sealed lever design, there is no fluid ejection from the lever part even when in operation, making it an environmentally considerate product. 【Features】 ■ For standard products, delivery can be made in as short as 3 days, and at a low cost! ■ The adjustable type is designed with a wide pressure adjustment range. ■ Screw-in options include "R," "G," and "NPT." *Note 1: Material and parts may change, affecting delivery time and price. ■ Flanges use loose flanges (JIS10K). *Note 2: This may not be applicable at high pressures or temperatures. ■ It can accommodate a set pressure from 0.02 MPa to a maximum of 3.4 MPa, and a maximum temperature of 350°C. *Note 1 *For more details, please download the PDF or feel free to contact us.

• Piping Materials
• Other machine elements

The "Mihana Manufacturing Safety Valve Comprehensive Catalog" features various safety valves that apply "Wrapping Technology: Flat Polishing." Under the supervision of public institutions, it has been confirmed that there is no leakage even after the blowout coefficient and 100 durability tests, starting with the "SA100 (Flanged Full-Flow Safety Valve)," as well as the "SA110 (Open Lever Type Flanged Full-Flow Safety Valve)" and "SA500 (High-Temperature Flanged Full-Flow Safety Valve)" among others. You can choose the most suitable product from a wide variety of product options. [Contents] ■ Company Overview ■ Various Standards and Approvals ■ Group Companies ■ Technical Features ■ Product Information *For more details, please refer to the PDF document or feel free to contact us.

• valve

The "SA100" is a safety valve that incorporates the best efforts of the Mihana research team, including computer analysis. It has been confirmed, under the supervision of public institutions, that there are no leaks at all even after the blowout coefficient and durability test of 100 cycles. Additionally, we can manufacture high-pressure products exceeding 10MPa, so please feel free to consult with us. 【Features】 ■ No pre-leakage at the start of blowing ■ Capable of manufacturing high-pressure products exceeding 10MPa ■ Lost wax manufacturing method *Sizes up to 100A *For more details, please refer to the PDF document or feel free to contact us.

• valve

The "SVS" is a sanitary safety valve that ensures the safety of manufacturing processes in the food and medical industries. The lever handle, designed with safety and operability in mind, allows for easy manual operation and forced cleaning. Additionally, a screw-type joint structure for the spring box and valve box has been adopted, considering workability. Furthermore, the structure minimizes liquid accumulation both inside and outside, eliminating unnecessary liquid buildup and suppressing the growth of bacteria. 【Features】 ■ Lever handle designed with safety and operability in mind ■ Joint structure of spring box and valve box that considers workability ■ Stable operability ■ Structure that minimizes liquid accumulation both inside and outside ■ Diaphragm structure *For more details, please refer to the PDF document or feel free to contact us.

• valve

The "SD/SC120-S" is a sealed lever-type screw-in safety valve (soft seat). It features a unique structure developed by our company, making it a low-cost sealed lever that is suitable for devices where external leakage is not permitted. Similarly, our proprietary popping mechanism ensures reliable operation and high discharge capacity. Additionally, since the valve body uses a soft seat (PTFE), it experiences less leakage due to foreign matter adhesion from steam and other sources compared to metal seats. 【Features】 ■ All stainless steel ■ Sealed lever ■ Soft seat ■ Reliable operation and high discharge capacity ■ Lightweight and compact *For more details, please refer to the PDF materials or feel free to contact us.

• valve

Our company's "safety valve" has absolutely no front leakage. Thanks to our uniquely developed special technology, we have achieved the phenomenon of "simultaneous start and discharge without front leakage." 【Features】 ■ Uniquely developed special technology ■ No front leakage ■ "Start and discharge" occur simultaneously *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

Our company's "safety valve" has no neck section and is set as a rigid body, eliminating concerns about destruction due to reaction forces, and it is designed to accommodate even higher pressures. The surface roughness of the seat section of our safety valve is in the range of 0.005 microns. Additionally, it has passed tests for no pre-leakage and no post-leakage after 100 cycles of operation. 【Features】 ■ Strong structure against reaction forces ■ For types with jackets, there is no need to increase the size of the mounting flange ■ Easy maintenance ■ Sense of safety, lightweight, and compact ■ Easy installation *For more details, please refer to the PDF materials or feel free to contact us.

• Other electronic parts

Since our company handles many overseas products, we conduct material analysis to ensure that our customers can use them with confidence. This helps prevent losses due to incorrect material specifications of parts and products, and not only reduces production downtime costs but also allows us to provide higher quality performance in terms of customer satisfaction. 【Features】 ■ Proof of Reliability - Material Analyzer - Microscope ■ Thorough Clarification - Laser Marker *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "SA110" is a reliable open-lever type flange full-flow safety valve that can accommodate gas, steam, or high-temperature steam depending on the application, and has a proven track record in large sizes, making it dependable in various situations. For full-flow safety valves, both open-lever and sealed-lever types are available. 【Features】 ■ Capable of handling gas, steam, or high-temperature steam (depending on the application) ■ Proven track record in large sizes *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "SA500" is a high-temperature full-bore safety valve equipped with a cooling spool to suppress the thermal effects on the spring caused by the discharged fluid. As a result, it can be used in temperature ranges that standard products cannot handle. Please pay attention to the material's temperature-pressure rating. 【Features】 ■ Equipped with a cooling spool ■ Usable in temperature ranges that standard products cannot handle *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "SA200" is a flange-type safety valve (balance bellows) suitable for situations where back pressure is unstable. Our wrapping technology has broken the common belief that balance bellows safety valves have significant leakage. Like standard products, there is absolutely no pre-leakage. We can also manufacture high-pressure products exceeding 10 MPa. 【Features】 ■ Ideal for unstable back pressure ■ Wrapping technology ■ No pre-leakage at all *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "RA100" is a type of adjustable flange full-flow relief valve designed primarily to release excess pressure when the pressure of a fluid rises to a predetermined level. To allow for arbitrary pressure adjustment, a round handle is provided at the top. 【Features】 ■ Capable of releasing excess pressure ■ Pressure can be adjusted as desired *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The SG122 is a full-flow safety valve (with flange inlet) for lever-type boilers, featuring a flange at the inlet and a threaded outlet. It is currently widely adopted for various types of boilers. 【Features】 ■ Inlet: Flange ■ Outlet: Threaded ■ Widely used for various types of boilers *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "SG922" has been developed as a full-flow safety valve for steam that requires a blow-off pressure (inlet flange). It is suitable for cases where a blow-off pressure of 10% or less is required. 【Features】 ■ Particularly suitable for cases where a blow-off pressure of 10% or less is required. *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The SC121 is a compact and high-performance screw-in full-flow safety valve for boilers. It features a sealed lever type as standard, ensuring that no fluid escapes when it operates, allowing for safe use. 【Features】 ■ Compact and high-performance ■ Sealed lever type as standard ■ Safe to use without fluid escaping when it operates *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The SC122 is a compact and high-performance screw-in full-flow safety valve for boilers. Since it features a sealed lever type as standard, it can be used safely without any fluid escaping when it operates. By replacing parts, it can also accommodate low temperatures, high temperatures, and high pressures. Products without a lever are also available. 【Features】 ■ Compact and high-performance ■ Full-flow type ■ Supports low temperatures, high temperatures, and high pressures through part replacement ■ Lost-wax manufacturing method *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

"KANTA/KANTAE" uses stainless steel as its material, making it environmentally robust. Since the lever type is the standard specification, it not only allows for easy operation confirmation but also ensures safety as the sealed lever type prevents fluid from spraying out even during operation, highlighting its consideration for the environment. There are two types available: "KANTA" with a lever and "KANTAE" without a lever. 【Features】 ■ Material is stainless steel ■ Lever type is the standard specification, making operation confirmation easy ■ Lost wax manufacturing method ■ Two types: with lever and without lever *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "KANTA series" uses stainless steel as its material, making it resistant to environmental factors. Since it features a lever type as the standard specification, it is not only easy to confirm operation, but also safe due to its sealed lever design, which prevents fluid from spraying out even when operated, highlighting its consideration for the environment. The 'KANTAB' is available in the R type (male thread) specification that has been highly requested. 【Features】 ■ R type (male thread) ■ Material is stainless steel ■ Lever type as standard specification for easy operation confirmation ■ Lost-wax manufacturing process *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "KANTA series" uses stainless steel as the material, making it resistant to environmental factors. Since it features a lever type as the standard specification, it is not only easy to confirm operation, but also safe due to its sealed lever design, which prevents fluid from spraying out even when in operation, highlighting its consideration for the environment. The 'HKANTAE' is not just a relief valve; it has a round handle on the top that allows for arbitrary pressure adjustment. It is easy to grip, requires little space for rotation, and enables fine adjustments. 【Features】 ■ Arbitrary pressure adjustment is possible ■ Made of stainless steel ■ Lever type as standard specification for easy operation confirmation ■ Lost wax manufacturing method *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "KANTA series" uses stainless steel as its material, making it strong against environmental factors. Since it features a lever type as the standard specification, it is not only easy to confirm operation, but also safe due to its sealed lever design, which prevents fluid from spraying out even when in operation, highlighting its consideration for the environment. The 'HKANTAB' is an adjustable relief valve with a male thread type. 【Features】 ■ Male thread type ■ Material is stainless steel ■ Lever type as standard specification for easy operation confirmation ■ Lost wax manufacturing method *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "KANTA series" uses stainless steel as the material, making it strong against environmental factors. Since it features a lever type as the standard specification, it is not only easy to confirm operation, but also safe due to its sealed lever design, which prevents fluid from spraying out even when in operation, highlighting its consideration for the environment. "KANTAK" allows for the secondary piping direction of the safety valve to be freely changed by adopting a loose flange, enabling quick delivery times. 【Features】 ■ Adoption of loose flange ■ Freedom to change the secondary piping direction of the safety valve ■ Quick delivery times ■ Material is stainless steel ■ Easy operation confirmation due to the lever type being the standard specification ■ Lost wax manufacturing method *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "KANTA series" uses stainless steel as the material, making it strong against environmental factors. Since it features a lever type as the standard specification, it is not only easy to confirm operation, but also safe due to its sealed lever design, which prevents fluid from spraying out even when in operation, highlighting its consideration for the environment. The 'HKANTAK' is an adjustable relief valve of the KANTAK type. 【Features】 ■ Uses loose flanges ■ Adjustable ■ Material is stainless steel ■ Easy operation confirmation due to the lever type being the standard specification ■ Lost wax manufacturing method *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "lost wax method" is a casting technique where a model made of wax is coated from the outside, and the internal wax is melted away to create a mold. Metal is poured into the mold created by melting the wax, and the mold is destroyed to form the final shape. This method is chosen for its advantages such as a smooth casting surface, the ability to accommodate complex shapes, and cost-effectiveness. 【Process】 ■ Model creation ■ Coating ■ Wax removal ■ Casting ■ Mold breaking ■ Finishing ■ Completion *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

The "SD10X" is a safety valve developed specifically for high pressure, utilizing our wrapping technology. It does not leak even under strong pressure. Adjustment types and male thread types are also available. 【Features】 ■ Developed for high pressure ■ No leakage even under strong pressure ■ Available in adjustment types and male thread types *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The "SD103" is a safety valve specialized for high pressure. The throat diameter varies with pressure, affecting the discharge amount. Due to its rational structure, it is designed to be compact and simple, making it a highly airtight safety valve. 【Features】 ■ Male thread type ■ Lost wax manufacturing method ■ Specialized for high pressure ■ Rational structure ■ Highly airtight *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

The SB101 is a safety valve that has been improved to achieve a high discharge coefficient in terms of performance. Like the full-flow safety valve, it adopts a bolted structure and is designed to withstand high pressure and high temperature. The material of this product is SCS and SCPH. 【Features】 ■ Adopts a bolted structure ■ Sufficiently withstands high pressure and high temperature ■ Improved to achieve a high discharge coefficient *For more details, please refer to the PDF document or feel free to contact us.

• Circuit breakers and switches

The SB100 is a compact full nozzle flange lift safety valve. It guarantees stable quality and smooth fluid flow. Due to its compact design, it is very affordable for a flange type. Please consult us regarding special materials. 【Features】 - Compact yet full nozzle - Guarantees stable quality and smooth fluid flow - Very affordable for a flange type *For more details, please refer to the PDF document or feel free to contact us.

• Circuit breakers and switches

The "RB101" is a relief valve equipped with a feature that allows customers to freely adjust the set pressure on their side, based on our flange-type economical SB101. It has received positive feedback not only for its performance but also for its design. The material of this product is SCS and CAC. 【Features】 ■ Freely adjustable set pressure on the customer side ■ Good design as well as performance *For more details, please refer to the PDF document or feel free to contact us.

• Circuit breakers and switches

The "M8W" is a screw-in lift type safety valve limited to sizes 65A and 80A. It is a large screw-in lift type. This is a type that you have been using traditionally. The material of this product is CAC and SCS. 【Features】 ■ Large screw-in lift type ■ A type that you have been using traditionally ■ Valve body products using Teflon are also available *For more details, please refer to the PDF document or feel free to contact us.

• Circuit breakers and switches

The SC120 is a safety valve that combines 40 years of experience and knowledge from Mihana. It features a standard sealed lever and is compact yet high-performance. Moreover, it is very affordable. The material of this product is SCS. 【Features】 ■ Compact and high-performance ■ Very affordable ■ Lost wax manufacturing method ■ Contains Teflon disk *For more details, please refer to the PDF document or feel free to contact us.

• Circuit breakers and switches

The "SD120" is a lift-type safety valve with a soft seat. Since the valve body is made of PTFE, there is no concern about leaks caused by water scale, which is common in boilers. It features a sealed lever as standard, is compact, and has high performance. Moreover, it is very affordable. The material of this product is SCS. 【Features】 ■ Lift-type safety valve with a soft seat ■ Valve body made of PTFE ■ No concerns about leaks from water scale, which is common in boilers ■ Lost wax manufacturing process ■ Contains a Teflon disc *For more details, please refer to the PDF document or feel free to contact us.

• Circuit breakers and switches

The "SD100" is a professional safety valve that thoroughly understands the characteristics of safety valves and skillfully utilizes the properties of fluids. In terms of cost, it is an excellent product that has been meticulously designed from the planning stage. You will not regret using it. The material of this product is SCS. 【Features】 ■ Skillfully utilizes the properties of fluids ■ Lost wax manufacturing method ■ Contains Teflon disk *For more details, please refer to the PDF document or feel free to contact us.

• Circuit breakers and switches

The "S3FSC" is a safety valve that is designed to handle low pressures that cannot be addressed by spring-type safety valves. It shares components with standard type safety valves, allowing for short lead times and low costs. The compatible fluid is only "dry gas." 【Features】 ■ Supports low pressure ■ Short lead time and low cost ■ Compatible fluid is only "dry gas" ■ Lost-wax manufacturing process ■ Used in the Akashi Kaikyo Bridge *For more details, please refer to the PDF materials or feel free to contact us.

• Circuit breakers and switches

"SKANTAE" is a safety valve that is designed to handle low pressures that cannot be addressed by spring-type safety valves. It is a super high-performance safety valve that utilizes only the weight of the valve body without a spring, so it is compatible with "dry gas" only. The material of this product is SCS. 【Features】 ■ Compatible with low pressure ■ No spring, utilizing only the weight of the valve body ■ Compatible fluid is "dry gas" only ■ Lost wax manufacturing method *For more details, please refer to the PDF document or feel free to contact us.

• Circuit breakers and switches

The "SVS" is a safety valve designed to minimize liquid accumulation both inside and outside. With a simple lever structure, manual operation is easy. By lifting the lever, the valve body also rises, making forced cleaning simple. For users who have previously used relief valves, we recommend a size one size smaller. 【Features】 ■ Lever handle designed with safety and workability in mind ■ Stable operation ■ Structure that minimizes liquid accumulation both inside and outside ■ Lost wax manufacturing method *For more details, please refer to the PDF document or feel free to contact us.

• Circuit breakers and switches

The "VOC" is a vacuum screw-in rupture valve with a metal touch structure. While tanks are strong against internal pressure, they are very weak against external pressure. It protects the tank from destruction due to internal vacuum. By applying our uniquely developed wrapping technology, there is absolutely no leakage even in a vacuum state above the set pressure. 【Features】 ■ Metal touch structure ■ Protects the tank from destruction due to internal vacuum ■ Applies our uniquely developed wrapping technology ■ No leakage at all even in a vacuum state above the set pressure *For more details, please refer to the PDF document or feel free to contact us.

• Other safety equipment
• Circuit breakers and switches

The "VOCP" is a vacuum screw-in rupture valve with an O-ring seal structure. The seat section uses an O-ring, effectively utilizing the self-sealing function. Standardization is available up to 100A. Additionally, larger sizes can be discussed. 【Features】 ■ O-ring seal structure ■ O-ring used in the seat section ■ Effectively utilizing the self-sealing function ■ Standardization available up to 100A ■ Larger sizes can also be discussed *For more details, please refer to the PDF document or feel free to contact us.

• Other safety equipment
• Circuit breakers and switches

The "VFOB" is a vacuum flange rupture valve with a metal touch structure. The seat part is made of metal, but it has excellent sealing properties. For outdoor use, there are bird screens and rain covers available. It has been designed to prevent rust from affecting it over long periods. 【Features】 ■ Metal touch structure ■ The seat part is metal, but it has excellent sealing properties ■ Bird screens and rain covers available for outdoor use ■ Designed to prevent rust from affecting it over long periods *For more details, please refer to the PDF document or feel free to contact us.

• Other safety equipment
• Circuit breakers and switches

The "SD130" is a screw-in lift type safety valve developed for blowers. It is a product that reduces the number of parts and can help you lower costs. Please note that additional parts are required if this product is used outdoors. 【Features】 ■ Developed for blowers ■ Male thread (R) ■ Reduces the number of parts ■ Can lower costs ■ Additional parts are required for outdoor use *For more details, please refer to the PDF document or feel free to contact us.

• Other safety equipment
• Circuit breakers and switches

The "S30C" is a safety valve for low-pressure air developed for blowers. It is available in sizes from 65A to 100A. Due to its open outlet design, it significantly reduces fluid resistance and improves operational functionality. However, please note that it is not suitable for toxic gases. 【Features】 ■ Safety valve for low-pressure air developed for blowers ■ Male thread (R) ■ Available in sizes from 65A to 100A ■ Open outlet design ■ Significantly reduced fluid resistance and improved functionality ■ Not suitable for toxic gases *For more details, please refer to the PDF document or feel free to contact us.

• Other safety equipment
• Circuit breakers and switches