BW Series valves are actuated by a solenoid pilot, using an internal bleed. The BW Series use a floating diaphragm to prive the seal for the main orifice. The pressure within the valve is utilized to open and close the diaphragm. A small pressure drop across the main orifice is require to keep the diaphragm in the open position.
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Unit of Measure
Items
Goyen Valve

Industrial Control Valves
Goyen Valve

Industrial Control Valves
Goyen Valve

Industrial Control Valves
Goyen Valve

Industrial Control Valves
Goyen Valve

Industrial Control Valves
Series N/A BW
Body Material N/A Brass
Type N/A Normally Closed
Pipe Size N/A 1/4 in6 mm N/A 3/8 in10 mm N/A 1/2 in12 mm N/A 3/4 in20 mm N/A 1 in25 mm
Pressure Range N/A 3 to 150 psi20 to 1000 kPa
Orifice size N/A 0.25 in6.4 mm N/A 0.38 in11.0 mm N/A 0.50 in12.7 mm N/A 0.75 in19.0 mm N/A 1.00 in25.4 mm
Cv N/A 1.1 N/A 2.1 N/A 3.5 N/A 7.7 N/A 13.2
Kv N/A 0.95 N/A 1.81 N/A 3.01 N/A 6.62 N/A 11.18
Manufacturer N/A Pentair / Goyen