Excess Pressure Regulator 

There are 2 products.
Excess Pressure Regulator
The GP-2000R is a high-performance externally piloted throttling back-pressure valve for large capacity applications.
Excess pressure regulator / back pressure sustaining valve in straight thr. with diaphragm-actuator DMA 40-400, DN 15 - 150, 1''-6'', PN 16 – PN 40, ANSI...
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