Air set for accurately controlling supply pressure and a pressure-adjustable three-way switching valve.
We would like to introduce the "Model 78 Air Set / Model 78 Transfer Valve" that we handle. The "Model 78 Air Set" is used to accurately control the supply pressure to instruments such as positioners for control valves. The "Model 78 Transfer Valve" is a transfer valve that combines a floating ball type pilot section with a three-way valve, and it is a high-performance "set pressure adjustable three-way switching valve." 【Features】 ＜Model 78 Air Set＞ ■ Supply pressure reducing valve ■ Accurately controls the supply pressure to instruments such as positioners for control valves ■ Available in standard capacity Model 78-4 and high capacity Model 78-40 ＜Model 78 Transfer Valve＞ ■ High-performance set pressure adjustable three-way switching valve ■ Can be used as a lock-up valve by stopping the exhaust port and using it as a two-way valve ■ Available in high capacity Model 78-80H and standard capacity Model 78-80S *For more details, please refer to the PDF materials or feel free to contact us.
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【Specifications (Excerpt)】 <78 Type Air Set> ■ Input Pressure Rating: Maximum 1.5MPa ■ Setting Range: 35–280kPa (78-4 Type), 35–700kPa (78-40 Type) ■ Connection Diameter: Rc1/4 or NPT1/4 ■ Cv Value: 0.25 ■ Body Material: Aluminum Die Cast <78 Type Transfer Valve> ■ Maximum Operating Pressure ・Body Section: 1.72MPa ・Signal Section: 1.03MPa ■ Setting Range: 100–700kPa ■ Hysteresis: Below 34kPa ■ Operating Temperature Range: -30–83℃ (Optional 0–100℃) ■ Cv Value ・78-80H Type: Inlet to Outlet: 4.5, Outlet to Exhaust: 5.0 ・78-80S Type: Inlet to Outlet: 0.8, Outlet to Exhaust: 1.3 *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Japan Dresser, as part of Baker Hughes, primarily manufactures and sells fluid control valves and instruments for the energy equipment industry, including oil and gas, as well as for power generation. The Kariba plant in Kariba County, Niigata Prefecture, has established a new corporate foundation as a global company, serving as one of the production bases for automatic control valves in China, Southeast Asia, and the Middle East. Additionally, in recent years, we have introduced 3D printers and are working on the manufacturing of specially designed automatic control valve components for various applications in energy industry plants.