Full bore equivalent type stainless steel small pneumatic automatic ball valve
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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.
basic information
【Specifications】 Nominal diameter: 10A to 50A Maximum operating pressure: 1.96MPa Operating temperature range: -10℃ to +180℃ (non-freezing) Fluids: Water, oil, gas, and others 【Features】 - Lightweight and compact design, ideal for installation in narrow piping. - Flange connection allows for disassembly and cleaning of internal components such as the ball section. - The actuator is small and high-torque (rack and pinion mechanism), resistant to rust and lightweight. - The actuator can be rotated in 90° increments. - Operates with pneumatic pressure only, featuring a double-acting mechanism. - Made of stainless steel (SCS13) with excellent corrosion and heat resistance. - High-toughness body with a seamless one-piece (integrated) structure made from stainless steel drawn material (some extruded material), minimizing the risk of external leakage. - Adopts a floating ball valve structure. - The seat is made of PTFE, which has excellent corrosion resistance and durability. - Uses fluororubber for the O-ring material, enabling use under a wide range of conditions. - Features a protrusion prevention structure with the stem incorporated from the inside of the body. - Enhanced airtightness due to the airtight effect from internal pressure and the spring effect from the conical spring (disc spring).
Price information
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Delivery Time
Model number/Brand name
LAS-157 type
Applications/Examples of results
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catalog（4）
Download All Catalogs
CAD data（7）
| Model number | overview | File |
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| 【3D】LAS-157-10Rc |
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| 【3D】LAS-157-15Rc |
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| 【3D】LAS-157-20Rc |
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| 【3D】LAS-157-25Rc |
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| 【3D】LAS-157-32Rc |
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| 【3D】LAS-157-40Rc |
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| 【3D】LAS-157-50Rc |
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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.