Product Overview
Cartridge
Description
This valve is a pilot to open check valve. It has a non-sealed pilot, a steel seat, and is non-vented. It allows free flow from the valve (port 2) to the load (port 1) and blocks flow in the opposite direction. Pressure at the pilot (port 3) will open the valve from port 1 to port 2. Pilot pressure needed at port 3 to open the valve is directly proportional to the load pressure at port 1.
Pressure at port 2 directly opposes pilot pressure.
Specifications
Cavity T-17A
Series 3
Capacity 60 gpm
Maximum Operating Pressure 5000 psi
Pilot Ratio 3:1
Maximum Valve Leakage at 110 SUS (24 cSt) 1 drops/min.
Valve Hex Size 1 1/4 in.
Valve Installation Torque 150 - 160 lbf ft
Model Weight 1.16 lb.
Seal kit - Cartridge Buna: 990017007
Seal kit - Cartridge EPDM: 990017014
Seal kit - Cartridge Polyurethane: 990017002
Seal kit - Cartridge Viton: 990017006
Features
Provides hose break protection, prevents loads from drifting and positively locks pressurized loads.
Standard unsealed pilot allows air trapped in the pilot line to be purged from the circuit.
Extremely low leakage. The seat and poppet are heat treated for long life. If the load drifts due to the valve, the seat has probably been damaged by contamination and the valve should be replaced.
Optional external porting out of the hex end of the cartridge is available for external piloting. In this configuration, port 3 is blocked. See Control options E, and P.
Pilot-to-open check cartridges are locking valves, not motion control valves. For motion control applications, use counterbalance valves.
*Please note that image representation may only represent a product series with particular items. The buyers responsibility is to ensure the product SKU matches their specifications before purchase.
