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  6. Completely oil-free ball valve to prevent contamination by impurities, with proven performance in pure water systems and similar applications.

Completely oil-free ball valve to prevent contamination by impurities, with proven performance in pure water systems and similar applications.

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Oil-free ball valve

last updated:Oct 29, 2025

ハマイ 営業本部
ハマイ 営業本部
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A completely oil-free ball valve that prevents the contamination of impurities such as grease. Proven performance in pure water systems and water treatment systems! Large stock available for immediate delivery!

For those struggling with long lead times for oil-free products. Get high-quality oil-free ball valves right now. 【What is oil-free 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 oil-free processing】 It is used in clean environments where the contamination of impurities and oil, like lubricating oil, is a problem. It is suitable for use in pure water systems and similar applications. 【Features of Hamai's oil-free products】 ● No residual grease due to cleaning treatment before assembly of parts. ● Stock available through lot production. ● Can accommodate those using in even cleaner environments (re-cleaning of finished products, work under clean room conditions, etc.) ● Available in brass and stainless steel products. ● A butterfly handle for space-saving is also included 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, and we respond to the needs for unique functions and requirements for ball valves with overwhelming quality.

    valve
56984d26a286a7c54e6825332e3f192599eebd1f-thumb-640xauto-1176.jpg

Completely oil-free ball valve to prevent contamination by impurities, with proven performance in pure water systems and similar applications.

56984d26a286a7c54e6825332e3f192599eebd1f-thumb-640xauto-1176.jpg
56984d26a286a7c54e6825332e3f192599eebd1f-thumb-640xauto-1176.jpg 32c266c9287d093cdd0ca3f54340f821b038df47-thumb-640xauto-1179.jpg 2b2e03ac5646b37399029e2e773c32f16d1a57e0-thumb-640xauto-1180.jpg 56984d26a286a7c54e6825332e3f192599eebd1f-thumb-640xauto-1176.jpg 042a4db448987d9eba5317b0faee1adc808824e8-thumb-640xauto-1160.jpg ef5f8519cb0dafca11c74fa5a308530986aa5477-thumb-640xauto-1159.jpg fbae1ae8baee0f2d3883345a1adb0e7dae27f05b-thumb-640xauto-1158.jpg
  • Related Link - https://www.hamai-net.com/products_cms/ball_valve/…
  • Special site - Product/service details - https://pr.mono.ipros.com/hamai-net/product/

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【Model Numbers】 BSS-43, BSS-217, TSS-30, etc. 【Specifications】 Nominal Diameter: 08A to 50A *Some sizes are made to order. Maximum Operating Pressure: 3.92 MPa Operating Temperature Range: -20℃ to +120℃ (non-freezing) Fluids: Water, oil, gas, and others Materials: Stainless steel, brass Inner Diameter: Reduced bore, full bore ☆Customization is available. Please feel free to consult us. Hamai accepts custom orders. <Examples of other custom product achievements> - Change in handle shape - Change in handle opening/closing direction - Plating treatment - Change in connection method (male/female, G-thread, other connection methods) - Valves with limit switches - Processing of drain holes, sampling holes, etc. - Special specifications including significant shape changes (Y-shaped three-way valves, two-way three-way valves) - Changes in materials and shapes of resin parts such as seats - Products requiring various technical considerations for high and low temperatures Hamai's stainless steel ball valves have been adopted by many major companies in industrial equipment, machine tools, and various factories as the industry standard model for many years. They have gained overwhelming support as safe and reliable ball valves with almost no fluid leakage.

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Applications/Examples of results

【Implementation Results】 ● Water treatment equipment ● Pure water production equipment ● Water treatment plant ● Cleaning equipment

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[Case Study] Major Semiconductor Manufacturing Equipment Manufacturer - Oil-Free Ball Valve Implementation Solution Case

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[Case Study] Major Oil and Chemical Plant Company - Safety Measures Ball Valve Implementation Solution Case

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[Case Study] Major Construction Machinery Manufacturer - Onboard Ball Valve Implementation Solution Case

[Case Study] Major Construction Machinery Manufacturer - Onboard Ball Valve Implementation Solution Case

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Company information

ハマイ

ハマイ 営業本部

Industrial Machinery

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Since its establishment in 1927, Hamai has been a comprehensive valve manufacturer, offering a lineup of ball valves with excellent functionality that accommodates a wide range of fluids, pressures, and temperatures. With advanced design capabilities and outstanding manufacturing technology, we provide custom-designed high-performance valves. Additionally, we have been manufacturing genuine parts and supplying OEM products to major manufacturers for many years. Hamai's valves are produced in domestic factories, ensuring quality unique to "Made in Japan" and attentive service.

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