Product Detail

HSU

Quick Overview

NORMALLY CLOSED SEQUENCE VALVE FOR PILOT OPERATION

Mounting Surface: 1200, 1600, 2000 Oilgear Standard Cavities

Max Pressure: 5000 PSI (345 bar)
Rated Flow Rate: 39 to 170 gpm (148 to 644 l/min)

When operated by a HSLR pilot operator, the HSU sequence valve connects primary and secondary branches after the pressure requirement on a third branch has been satisfied. This valve can be circuited to be operated by multiple pressure settings.

A HSLR pilot relief valve must be connected via port 4 to top (spring side) of the main spool, and pressure must be connected to port 1 to operate the relief valve which pilots the sequence valve to connect ports 2 and 3. When the inlet pressure (ported thru the valve) exceeds the pilot setting, pressure on the top side of the sloop is relieved. A pressure imbalance then exists across the main spool. Port 1 pressure raises the spool and allows from between ports 2 and 3.

A trim adjustment is provided to vary the cracking and re-seating pressure. The cartridge is constructed of steel parts, and operating parts are hardened and ground as required. The cartridge is designed for easy service or field repair.

1200 1600 2000
Rated Flow (Δ 100 psi/7 bar) 39 gpm 148 l/min 84 gpm 318 l/min 170 gpm 644 l/min
Max Operating Pressure 5000 psi 345 bar 5000 psi 345 bar 5000 psi 345 bar
Adjustable Pressure Range 07 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

Product Specifications