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关键词:siemens 61H 西门子
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Siemens?Booster Relays - 61H and 61VH西门子继动器 常见型号： Models 61H?? Models 61L?? Models 61F? Models 61FE?? Models 61VH 61VH?is a High-Capacity Booster Relay designed for use on control valve actuators that require very fast stroking speeds Both 61H and 61VH feature a stabilizing bypass needle valve between the input and output, which eliminates the need for an externally piped bypass. Epoxy powder coating provides excellent corrosion resistance Input pressure acting upon the effective area of the upper diaphragm, produces a force that is opposed by the output pressure exerted upon the effective area of the lower diaphragm.? The opposing forces are in a direct 1:1 ratio. The series 61 Booster Relays reproduce pneumatic signals in a 1:1 ratio for applications where input isolation or increased flow capacity are required. 61H?is a High-Capacity Booster Relay designed to improve the stroking speed of large diaphragm valves. Both 61H and 61VH feature a stabilizing bypass needle valve between the input and output, which eliminates the need for an externally piped bypass.
