PILOTED RELIEF VALVEMax Pressure: 5000 PSI (345 bar)
Rated Flow Rate: 10 to 35 gpm (38 to 133 l/min)
The HSR piloted relief valve is a fast acting valve designed for continuous duty applications to regulate system maximum pressure consistently and smoothly.
Inlet pressure is ported thru orifices in the center of the valve to the adjustable pilot relief valve (in the upper portion of the body). When the inlet pressure exceeds this valve spring setting, the poppet opens and pressure on the top side of the lower main spool is relieved. A pressure imbalance then exists across the main spool and port 1 pressure raises the main spool to allow flow to port 2.
The HSR cartridge valve is constructed of steel parts, and operating parts are hardened and ground as required. The cartridge is designed for easy service and field repair.
|Rated Flow (Δ 100 psi/7 bar)||10 gpm||38 l/min||35 gpm||133 l/min||35 gpm||132 l/min|
|Max Operating Pressure||5000 psi||345 bar||5000 psi||345 bar||5000 psi||345 bar|
|Adjustable Pressure Range||7||50 to 700 psi||3 to 48 bar||50 to 700 psi||3 to 48 bar||50 to 700 psi||3 to 48 bar|
|20||50 to 2000 psi||3 to 138 bar||50 to 2000 psi||3 to 138 bar||50 to 2000 psi||3 to 138 bar|
|35||50 to 3500 psi||3 to 241 bar||50 to 3500 psi||3 to 241 bar||50 to 3500 psi||3 to 241 bar|
|50||50 to 5000 psi||3 to 345 bar||50 to 5000 psi||3 to 345 bar||50 to 5000 psi||3 to 345 bar|
|Viscosity Range||27 to 2000 SSU at 100 °F||1 to 432 cSt|
|Temperature Range||-40 to +350 °F||-40 to +175 °C|