NORMALLY OPEN EXTERNAL PILOT SEQUENCE VALVE
Mounting Surface: 800 Oilgear Standard CavityMax Pressure: 5000 PSI (345 bar)
Rated Flow Rate: 17.5 gpm (66 l/min)
The HSUO sequence valve disconnects primary and secondary system branches after the pressure requirement in a third branch is satisfied.
Pilot pressure must be connected to port 1 to operate the integral relief valve which pilots the sequence valve to block port 2 from 3. Port 1 pressure is ported thru orifices in the center of the valve to the pilot relief valve (in the upper portion of the body). Then this pressure exceeds this valve setting, pressure on the side of the main spool if relieved. A pressure imbalance then exists across the main spool. Port 1 pressure raises the main spool to block flow between ports 2 and 3.
Several pressure ranges are available to choose from. The cartridge is constructed of steel parts, and the operating parts are hardened and ground as required. The cartridge is designed for easy service or field repair.
|Rated Flow (Δ 100 psi/7 bar)||17.5 gpm||66 l/min|
|Max Operating Pressure||5000 psi||345 bar|
|Adjustable Pressure Range||07||50 to 700 psi||3 to 48 bar|
|20||50 to 2000 psi||3 to 138 bar|
|35||50 to 3500 psi||3 to 241 bar|
|50||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|