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Flow Control Valves C Flow Control Blocking Valves Principle With control signal Prestobloc pilot-operated blocking fittings are designed for mounting directly to the cylinder ports. Available with push-in or threaded Control signal terminations, these function fittings permit safe and immediate stopping of the piston rod by blocking the cylinder supply and exhaust. Diaphragm Operation � Pilot operated diaphragm maintains full flow when pilot signal is present. To power valve � Spring closes the poppet valve locking air in the cylinder when the pilot signal is removed. � Prestobloc fittings used in conjunction with Prestoflow flow Poppet valve regulators are mounted on inlet and outlet ports. Spring � Pilot signal should be independent from the control valve. Advantages Cylinder � Compact � Direct mounting � Safety Without control signal � Independent control Valve Specifications Control signal Maximum Working Pressure: 145 PSI Operating Temperature: +5 Diaphragm �- +150� F Body Material: Zinc alloy epoxy coated Bolt Material: Brass To power valve Poppet valve Spring Cylinder Blocking principle Moving Blocked exhaust exhaust supply supply P P Pilot signal Removal initiatesblocking Parker Hannifin Corporation C17 Parker Brass Products Division Otsego, Michigan Flow Control Valves
Goodyear Rubber Products
