Features Nominal pilot ratio is 1.8:1. This means that a pressure of 1000 psi (70 bar) at the pilot port will close a valve against a pressure of 1800 psi (125 bar) at port 1. Any decay or loss of pilot pressure could allow the valve to open, even if it is a momentary decay or loss. Pressure at the port 2 area directly opposes pilot pressure. Reverse flow through the valve from port 2 to port 1 is not possible under any condition.
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