Last Updated： Aggregation Period:Dec 31, 2025～Jan 27, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Dec 31, 2025～Jan 27, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Dec 31, 2025～Jan 27, 2026
This ranking is based on the number of page views on our site.
1021～1035 item / All 3424 items
A butterfly valve with a history of reliability and proven performance used in countries around the world. It is also used by many users in Japan.
F990 - Usable for a wide range of fluids with a combination of body, disc, and seat. K-LOK - Double eccentric high-performance butterfly valve. F239 - Heavy-duty butterfly valve for high pressure and vacuum applications.
Please leave the parts that require high-precision processing technology to us.
One of the components mounted on construction machinery. It accurately and powerfully controls the distribution of oil sent by the engine's rotation to various circuits. High-precision processing technology is required. *For details, please contact us or refer to the catalog.*
![[Lock Function / Malfunction Prevention] Safety Measures Valve Products Lineup](https://image.mono.ipros.com/public/product/image/0c1/2001505116/IPROS15638905948269897113.jpg?w=280&h=280)
To prevent erroneous opening and closing, safety measures for devices and plants! Manufacturing products for accident prevention measures.
The following individuals are recommended to use Hamai's lockable ball valves: ■ Those using them in areas where incorrect opening and closing or contact could lead to work-related accidents ■ Those using ball valves in areas where quality degradation occurs due to incorrect opening and closing ■ Those for whom safety measures are mandatory according to company regulations The lock can be securely engaged regardless of orientation. Additionally, it is also recommended for those using it overseas. Our ball valves can accommodate this. ■ Companies where lockout is essential due to language barriers for workers or security issues ■ Those required to implement lockout according to various industry regulations Hamai also offers custom products. Please feel free to consult with us. *For more details, please download the PDF or feel free to contact us.
Easy installation even in tight spaces! Improved construction efficiency with a gauge valve that allows for flexible orientation adjustment!
With the adjustable swivel screw function, piping work in tight spaces is made more efficient! It can be installed without the need to turn the pressure gauge, allowing for smooth installation even in limited spaces. Additionally, it can be used with any type of fluid compared to equivalent products from other companies. 【Features of the gauge valve with swivel screw function】 ● Can be installed simply by turning the swivel screw ● Usable with any fluid, including water, gas, and oil (Note 1) ● Can be used in high-temperature and high-pressure environments compared to equivalent products from other companies Note 1) Please consult us when using hazardous fluids such as flammable, toxic, or high-pressure gases. *For more details, please refer to the related links or feel free to contact us.
Optimal for flammable fluids such as oil piping! A ball valve with static electricity prevention for comprehensive fire safety measures.
Strengthen on-site fire prevention with electrostatic discharge-treated piping components! Are you overlooking any threaded connections? 【Is an anti-static valve necessary?】 When using a ball valve, static electricity is generated due to the friction between the fluid and the metal ball valve. In fluids with low conductivity (such as oil), static electricity accumulates inside the ball. If there is no mechanism to discharge the static electricity from the ball to the outside of the valve, the accumulated static electricity can create sparks, igniting flammable fluids and leading to a fire. Measures are necessary when flowing low-conductivity and flammable fluids (e.g., petroleum). 【Features of Hamai's anti-static valve】 ● Rare threaded ball valve with anti-static function ● Easy-to-operate lever handle ● Handle shape can be changed according to customer requests * We do not guarantee against fire-related issues such as leaks of flammable fluids. Please confirm the compliance of the fluid used with applicable regulations on your own. * For more details, please refer to the related links or feel free to contact us.
Because it's produced domestically, we respond quickly! For customers who absolutely need document issuance. We will also respond quickly to various surveys and documents.
Since it is domestically produced, we have a solid traceability system in place and can accommodate a wide range of document issuance requests. Various documents can be issued according to your needs. ● Main documents that can be issued: - Product inspection report - Material certificate (mill sheet) * Can be provided for each component upon request. - Non-applicability certificate (item comparison table) - RoHS directive substance non-containment certificate - Oil-free treatment certificate - Other content investigations We will also respond to document issuance requests based on other requirements.
For those looking for a size 6A stainless steel ball valve. It can be easily installed in tight spaces with a butterfly handle.
Solve the piping issues within the equipment! With a space-saving design that fits into the limited space inside the equipment, we enhance the design flexibility of the equipment. Products with male and female connections can also reduce piping materials, leading to even more space savings! 【Features of Hamai's Butterfly Handle Products】 ● Even in areas where there is no room to turn a lever handle, a butterfly handle can be installed without taking up space. ● Products with male and female connections are also available. ● Brass products are also available. *For more details, please refer to the related links or feel free to contact us. 【About Hamai's Ball Valves】 Hamai's industrial ball valves are among the industry's top high-performance ball valves, boasting a track record of mass supply (OEM) to various industrial equipment and machine tools, primarily for major manufacturers in automotive, semiconductor manufacturing equipment, and general industry. They are adopted as genuine parts by various companies, and we respond to the needs for unique functions and requirements for ball valves with overwhelming quality.
Using positive list compliant materials! High-quality oil-free ball valves delivered to you in a short lead time!
For those struggling with long lead times for non-oil products. Get high-quality non-oil ball valves right now. 【What is non-oil processing?】 In general products, lubricating oil is used inside the ball valve for smooth operation. This is the process of removing that lubricating oil. 【Purpose of non-oil processing】 It is used in clean environments where contamination by impurities and oil, like lubricating oil, is a problem. 【Features of Hamai's non-oil products】 ● No residual grease due to cleaning treatment before assembly of parts. ● Stock maintained through lot production. ● Can accommodate those using in even cleaner environments (re-cleaning of finished products, work under clean room conditions, etc.) ● Stainless steel products are available. ● Butterfly handles for space-saving options are also in the lineup. 【About Hamai's ball valves】 Hamai's industrial ball valves are among the industry's top high-performance ball valves, boasting a track record of mass supply (OEM) to various industrial equipment and machine tools, primarily for major manufacturers in automotive, semiconductor manufacturing equipment, and general industry. They are adopted as genuine parts by various companies, responding to the needs for unique functions and requirements for ball valves with overwhelming quality.
Lot production is possible with set pressure and set temperature tailored to the user's needs.
■【Features】 Compact spring-type safety valves, relief valves, and blow-off valves. We can produce them in lots with pressure and temperature settings tailored to user needs. Materials available are brass and stainless steel, with connection diameters ranging from 06A to 20A (1/8B to 3/4B). Additionally, we can accommodate a wide range of set pressures from 0.3 to 1.10 MPa. (*For other thread standards, materials, or set pressures, please consult our sales department.) ■【Product Quality Recognized by Professionals】 Hamai's ball valves have a proven track record of mass supply (OEM) to various major manufacturers, making them top-class high-performance ball valves in the industry for various industrial equipment and machine tools. They are adopted as genuine parts by various companies, and we respond to all needs for ball valves with the highest product quality. ★【Custom Orders / Made-to-Order Available】 For more details, please contact our [Tokyo Headquarters] at TEL(03)-3492-6655 <Receptionist / Second Sales>.
![[Oil-free specification, vertical three-way valve, closeable] Stainless steel ball valve](https://image.mono.ipros.com/public/product/image/be1/2001512400/IPROS7934823832542226504.jpg?w=280&h=280)
Stainless steel oil-free vertical three-way ball valve. It can switch the fluid flow from the bottom to the left and right, and it can also be closed. <Made in Japan>
Stainless steel vertical three-way ball valve with oil-free specifications. It allows for switching and closing of fluid flow from the bottom to the left or right. Each part undergoes degreasing and cleaning, and after drying, it is assembled without using any oil with bare hands, and shipped in individual packaging. Produced with Hamai's latest valve technology. ■【Features】 - Achieves complete oil-free specifications by removing oils such as grease - Lot production that realizes low costs - Maintains a constant manufacturer inventory for immediate delivery - Quick issuance of various documents, including oil-free treatment certificates - Vertical three-way valve with L-port that can be closed ■【Product Quality Recognized by Professionals】 Hamai's ball valves have a proven track record of mass supply (OEM) to various industrial equipment and machine tools, primarily for major manufacturers. They are top-class high-performance ball valves in the industry. They are adopted as genuine parts by various companies, meeting all needs for ball valves with the highest product quality. ★【Custom Orders / Customization Available】 For more details, please contact [Tokyo Headquarters] TEL 03-3492-6655 <Second Sales>.
Easily installable even in a space-saving manner. Valve with an air (water) release hole, ideal for use with pressure gauges and other main valves.
■【Features】 - This is a brass ball valve with an air (water) release hole. - By releasing the secondary pressure when fully closed, it can also provide protection for gauges and other benefits. - The butterfly handle does not take up much space, making it easy to install in tight spaces. ■【Product Quality Recognized by Professionals】 Hamai's ball valves have a proven track record of large-scale supply (OEM) to various industrial equipment and machine tool manufacturers, primarily among major manufacturers. They are high-performance ball valves that rank at the top of the industry. They are adopted as genuine parts by various companies, meeting all needs for ball valves with the highest product quality. ★【Custom Orders / Made-to-Order Available】 For more details, please contact [Tokyo Headquarters] TEL(03)-3492-6655 <Reception: Second Sales>.
![Case Studies of Ball Valve Improvements [Handle Change]](https://image.mono.ipros.com/public/product/image/4a8/2001520102/IPROS15416066618312895557.jpg?w=280&h=280)
We will solve the problems your company faces with custom ball valves. If you have concerns about the handle, please feel free to consult us.
This document introduces examples of improvements in custom-made products related to handles. Ball valves are widely used in factories and equipment, but are you forcing the use of incompatible existing products? Don't give up just because you've been using them without issues; for the sake of efficiency and productivity improvement, we recommend custom ball valves that are optimal for your company's environment. At Hamai, we manufacture custom ball valves. In addition to the handles in this document, we can also accommodate custom requests for the main body, resin materials, and even fully bespoke designs. For those who think custom products are expensive or require a high minimum order quantity, we offer flexibility unique to domestic production, allowing for small lot sizes. [Examples of Document Content] ■ Space Constraints ■ Clean Environments ■ Flow Management ■ Safety Measures
Lockable knob handle type ball valve with a high-strength forged body due to its integrated structure. Prevents accidental opening and closing. <RoHS compliant / Made in Japan>
Equipped with a unique locking mechanism that can securely fix the valve in fully open or fully closed positions with just one touch. This prevents accidents such as the handle unintentionally opening or closing due to contact with people or objects, or vibrations. The knob handle design is ideal for narrow piping. Produced in our domestic factory using Hamai's latest valve technology. ■【Features】 - Equipped with a handle locking function that securely locks in fully open/fully closed positions - Knob handle that is optimal for narrow piping - High-strength integrated body made through hot forging - Excellent corrosion resistance and durability with PTFE - Anti-protrusion structure with the stem assembled from the inside of the body ■【Product Quality Recognized by Professionals】 Hamai's ball valves are top-class high-performance ball valves with a proven track record of mass supply (OEM) to various industrial equipment and machine tools, primarily for major manufacturers. They are adopted as genuine parts by various companies, meeting all needs for ball valves with the highest product quality. ★【Custom Orders / Customization Available】 For more details, please contact [Tokyo Headquarters] TEL 03-3492-6655 <Receptionist / Second Sales>.
A high-flow/high-pressure brass ball valve featuring a high-strength forged body. Designed for durability, it can be used for extended periods in equipment and factory piping. <Made in Japan>
A brass ball valve of standard bore type designed to accommodate high flow rates, surpassing that of reduced bore valves. It minimizes fluid resistance and pressure loss, boasting top-class high pressure resistance among brass valves. Produced in our domestic factory using Hamai's latest valve technology. ■【Features】 - High flow and standard bore specifications - High-strength integrated body made through hot forging - Made with PTFE, which excels in corrosion resistance and durability - Anti-extrusion structure with the stem assembled from inside the body - Improved airtightness with a conical spring ■【Product Quality Recognized by Professionals】 Hamai's ball valves have a proven track record of mass supply (OEM) to various industrial equipment and machine tools, primarily for major manufacturers, making them top-class high-performance ball valves in the industry. They are adopted as genuine parts by various companies, meeting all needs for ball valves with the highest product quality. ★【Custom Orders / Customization Available】 For more details, please contact our [Tokyo Headquarters] at TEL 03-3492-6655 (Receptionist / Second Sales).
Adopts a high-strength forged body, a brass ball valve that can handle high-temperature steam up to 200°C. Ideal for steam piping in equipment and factories. <Made in Japan>
The gland section is equipped with double packing that has a high sealing effect. The conical spring prevents thermal deformation and a decrease in sealing surface pressure, allowing for long-term use. It features a long neck that makes it easy to wrap insulation material. Thanks to Hamai's latest valve technology, it is produced in our domestic factory. ■【Features】 - High temperature resistance up to 200℃ - Long neck for easy wrapping of insulation material - Conical spring prevents thermal deformation and decrease in sealing surface pressure - Safe structure that allows tightening of the gland nut by loosening the set screw in case of emergency - Made with PTFE, which has excellent corrosion resistance and durability ■【Product Quality Recognized by Professionals】 Hamai's ball valves are high-performance ball valves that boast a track record of mass supply (OEM) to various industrial equipment and machine tools, primarily for major manufacturers. They are adopted as genuine parts by various companies, meeting all the needs for ball valves with the highest product quality. ★【Custom Orders / Customization Available】 For more details, please contact [Tokyo Headquarters] TEL 03-3492-6655 <Receptionist / Second Sales>.
