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  1. Home
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  3. ハマイ 営業本部
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Industrial Machinery
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ハマイ 営業本部

EstablishmentFebruary 1, 1927
capital39500Ten thousand
number of employees314
addressTokyo/Shinagawa/7-7-7 Nishigotanda, SG Square 2F
phone03-3492-6655
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last updated:Jul 15, 2025
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  • Products/Services(96)
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ハマイ List of Products and Services

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Brass ball valve Brass ball valve
Stainless steel ball valve Stainless steel ball valve
Ball valve for LP gas Ball valve for LP gas
Custom-made product (relief valve) Custom-made product (relief valve)
Automatic ball valve Automatic ball valve
Lockable ball valve Lockable ball valve
Oil-free ball valve Oil-free ball valve
[Materials] Useful Materials [Materials] Useful Materials
Lockable

Lockable ball valve

With a one-touch operation, locking is easy. This is a lockable ball valve that provides safety and peace of mind.

Long-standing track record in various industrial equipment and automotive devices - Hamai Ball Valve

Overwhelming high performance to meet various needs! Specifications and design changes are possible.

Our company offers various custom manufacturing options for "ball valves." We have numerous adoption records with major industrial equipment and vehicle manufacturers. Due to our reliable quality, we have received high evaluations across various industries for many years. We can also accommodate difficult environments and conditions such as high temperature, low temperature, and high pressure. If you cannot find a product that meets your requirements and are using an expensive over-spec product as a substitute, please feel free to consult us. 【Features】 ■ Short delivery time and high quality: Domestic production allows for high-quality oil-free products to be delivered in a short time. ■ Custom orders: Hamai's custom products are fully tailored to your specifications. ■ Adaptability to difficult environments: We can handle challenging environments and conditions. *For more details, please download the PDF or feel free to contact us.

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[With explanatory video] Ball valve to prevent opening and closing accidents caused by vibration and impact.

Safety measures for piping equipment! Strongly locks in both vertical directions with a unique mechanism. Compatible with key locks such as padlocks, contributing to the prevention of accidents caused by incorrect operation.

The ball valve 'TSS-140' with a spring-type locking mechanism is a full-bore ball valve equipped with a dual safety mechanism that includes both spring locking and key locking. It can be securely locked in either the open or closed position, regardless of orientation, preventing malfunctions due to human error, vibrations, or impacts. The integrated locking mechanism allows for space-saving use. It also supports lockout using a padlock (sold separately), contributing to safety measures for equipment and piping systems. 【Features】 ■ Secure locking in both fully open and fully closed positions due to the built-in spring ■ Integrated locking mechanism that does not require additional installation space ■ Lockout operation using a padlock is possible ■ Pursuit of low costs through domestic mass production ■ Quick response to documentation requests (complete traceability including investigation of contained substances) *For more details, please refer to the materials. Feel free to contact us with any inquiries.

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Safety Measures - Forged Ball Valve with Lock, Brass Ball Valve

A high-strength forged body with an integrated structure, featuring a lockable brass ball valve. It effectively serves as a safety measure, preventing accidental opening and closing. <Made in Japan>

Equipped with a unique locking mechanism that can fix the valve in fully open or fully closed positions with a single touch. This prevents accidents such as unintended opening and closing of the handle due to contact with people or objects, or vibrations. The handle is compact, making it ideal for narrow piping. - Features a handle lock function that ensures reliable locking in fully open/fully closed positions - Lever handle with excellent operability - High-strength integrated body made through hot forging - Made with PTFE for excellent corrosion resistance and durability ■【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>.

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Safety Measures - Forged Ball Valve with Locking Knob Handle Type, Made of Brass

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>.

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【Safety Measures - Forged Ball Valve】 Oil-Free Key Lock Function Full Bore Equivalent

Adopts a high-strength forged body, with a key lock for a padlock (sold separately) for complete safety measures. It is a full bore equivalent model compliant with no oil/RoHS 2.0. <Made in Japan>

A full bore equivalent ball valve with a key lock function using a padlock (sold separately), based on the TSS-01 model. It is oil-free and compliant with the RoHS directive (10 substances). It securely locks in both fully open and fully closed states, making it effective for safety measures in semiconductor manufacturing equipment and more. Produced in our domestic factory using Hamai's latest valve technology. ■【Features】 - Ensures reliable lockout regardless of the piping installation direction - The locking mechanism is integrated with the valve, saving space compared to retrofitting methods - Quick document processing is possible due to domestic production - Maintains cleanliness for an extended period as there is no handle coating - High flow rate and full bore equivalent ■【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 among major manufacturers. They are adopted as genuine parts by various companies, responding to 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>.

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For improving the working environment and ensuring safety! Knob handle type copper ball valve.

Prevent accidents caused by unintended contact or vibrations that lead to handle opening and closing! The valve can be completely secured with a push-and-rotate mechanism, allowing for reliable switching between open and closed positions with just one touch.

Equipped with a unique locking mechanism that can securely fix the valve in fully open or fully closed positions with a single 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. Thanks to Hamai's latest valve technology, these products are manufactured in our domestic factory and comply with RoHS standards. ■【Features】 - Equipped with a handle locking function. Ensures secure locking in fully open/fully closed positions. - Knob handle ideal for narrow piping. - High-strength integrated body made through hot forging. - Made with PTFE for excellent corrosion resistance and durability. - Anti-protrusion structure with the stem assembled from the inside of the body. ■【Product Quality Recognized by Professionals】 Hamai's ball valves have a proven track record of mass supply (OEM) to various industrial equipment and machine tool manufacturers, primarily among major companies, 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).

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Prevents accidental opening and closing with a one-touch lock. Brass ball valve compliant with RoHS.

Be prepared for accidental disengagement! A robust locking mechanism prevents handle opening and closing accidents. By switching from inadequate safety measures, we enhance safety on site.

Equipped with a unique locking function that can fix the valve in the fully open or fully closed position with a single touch. This prevents accidents such as the handle unintentionally opening or closing due to contact with people or objects, or vibrations. The handle is compact, making it ideal for narrow piping. - Features a handle locking function that ensures reliable locking in the fully open/closed position - Lever handle with excellent operability - High-strength integrated body made through hot forging - Made with PTFE, which offers excellent corrosion resistance and durability ■【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>.

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