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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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ハマイ Product Lineup

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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
<用途別>医療用配管向け <用途別>医療用配管向け
<用途別>純水・水処理装置向け <用途別>純水・水処理装置向け
<用途別>産業用装置 <用途別>産業用装置
<用途別>車両・建設機械 <用途別>車両・建設機械
<用途別>工場配管・プラント向け <用途別>工場配管・プラント向け
<用途別>塗装装置向け <用途別>塗装装置向け
Automatic

Automatic ball valve

This is a compact and lightweight automatic ball valve designed to respond to labor-saving needs, driven by pneumatic power.

Full bore equivalent type stainless steel small pneumatic automatic ball valve

Space-saving and disassemblable full-bore equivalent model

A small pneumatic automatic valve made of stainless steel, equivalent to a large flow full bore. Due to its flange connection, it is possible to clean internal components such as balls by disassembling it. Additionally, the aluminum actuator equipped with a rack and pinion mechanism is high-torque, lightweight, and compact, capable of rotating in 90° increments. It is ideal for piping in narrow spaces and for installation in devices that require miniaturization. Furthermore, there are numerous achievements in custom-made (specification changes) products based on this model.

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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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Pneumatic Automatic Valve Ball Valve, Stainless Steel Ball Valve

High torque and lightweight, stainless steel / double-acting small pneumatic automatic ball valve. It features a compact design that achieves space-saving. <Made in Japan>

A small pneumatic automatic valve made of stainless steel with excellent corrosion resistance. The aluminum actuator equipped with a rack and pinion mechanism is high torque, lightweight, and compact, making it ideal for installation in tight spaces and small devices. Produced in our domestic factory using Hamai's latest valve technology. ■【Features】 - Lightweight and compact design, perfect for installation in narrow piping - The actuator is small yet high torque, resistant to rust, and lightweight - Operates with a double-acting mechanism powered solely by air pressure - Made from SCS14, which has excellent corrosion and heat resistance - Utilizes PTFE sheets that are highly resistant to corrosion and durable ■【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 [Tokyo Headquarters] TEL 03-3492-6655 <Receptionist / Second Sales>.

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Air pressure automatic valve / large flow / forged ball valve, equivalent to full bore, made of stainless steel.

High flow, full bore equivalent stainless steel pneumatic automatic ball valve. It allows for disassembly and cleaning, achieving space-saving design. <Made in Japan>

A compact pneumatic automatic valve made of stainless steel with excellent corrosion resistance, equivalent to a full bore. It can be disassembled for cleaning due to its flange connection. The detachable small actuator can be rotated every 90° to fit the installation location. Produced in our domestic factory using Hamai's latest valve technology. ■【Features】 - Lightweight and compact design, ideal for installation in narrow piping - Internal components can be disassembled for cleaning due to the flange connection - The actuator is small, high-torque, rust-resistant, and lightweight, with the ability to rotate every 90° - Operates with a double-acting mechanism powered solely by air pressure ■【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 [Tokyo Headquarters] TEL 03-3492-6655 <Receptionist / Second Sales>.

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Introduction of ball valve selection examples [Proven results in various industrial machinery and automotive equipment]

Catering to various needs! For oil-free, temperature-resistant, safety measures, and custom-made solutions, consult Hamai.

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 are using expensive over-spec products due to the lack of suitable options, please feel free to consult with us. 【Features】 ■ Oil-free products: High-quality oil-free products can be delivered in a short time due to domestic production. ■ Safety products: Even in areas where other companies' products cannot adequately address safety, our safety products provide solid locking. ■ Difficult environment compatibility: We can handle difficult environments and conditions. ■ Custom order products: Hamai's custom products are fully tailored to your specifications. *For more details, please download the PDF or feel free to contact us.

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