HPR08-D2
2Pages

Product Information PRESSURE VALVEDirect-acting, Pressure Reducing/Relieving Valve (High Pressure) Type: HPR08-D2 Max. operating pressure: 350 bar (5000 psi) Proof pressure: 630 bar (9000 psi) Flow: 20 L/min Description A screw-in, cartridge-style, direct-acting, spool-type, hydraulic pressure reducing/relieving valve with internal pilot and internal spring chamber drain for a pressure-regulating device for secondary circuits. It is intended for use in stable input flow circuits. Operation In its steady state, the HPR08-D2 allows flow to pass bi-directionally from @ to © , with the spring chamber constantly drained at ® to prevent the pressure at ® impact the spool. On attainment of a pre-determined pressure at © , the cartridge shifts to block flow at @ , thereby regulating pressure at © to keep the pressure at © steady. In this mode, when the pressure at © exceeds the setting pressure, the spool will shift to relieve © to ® , until the pressure at © regains the setting pressure. The pressure at ® is additive to the pressure setting at a ratio of 1:1. Technical Data Max. operating pressure 350 bar (5000 psi) Proof pressure 630 bar (9000 psi) Internal leakage Standard spring ranges Temperature range See Performance Chart 55 ml/min (3.5 cu.in./min) max. at 90% of nominal setting pressure._ Factory default preset value: 50% of rated pressure (See chart 1) -40°C ~ 120°C with standard buna seals -26°C ~ 204°C with fluorocarbon seals -54°C ~ 107°C with polyurethane seals_ (Chart 1: Standard Spring Range) Mineral based or synthetics with lubricating properties Fluids at viscosities of 7.4~420cSt (50-2000ssu) Installation No restriction Cavity tool T/H08-3-RC-T-G (Rough), T/H08-3-FM-T-G (Finishing)

Product Information • Adjustments cannot be backed out of the valve. • Positive stops prevent springs from going solid. • Hardened spool and cage for long life. • Range of bias springs available: 15-350 bar (220-5000 psi). • Industry common cavity. • Compact size Ordering Code Cavity —T Poppet type- Adjustment Option- 6mm. Hex Allen Head A 40mm. Dia. Alum. Knob B Cover Cap C Seals- N=Buna N V=Fluorocarbon U=Polyurethane HPR08-D2 **_**_ ** /** - ** Porting None=Cartridge Only 2G=G1/4 Cartridge: Weight: 0.24 kg (0.53 lbs) ; Steel with hardened working surfaces and zinc-plated exposing...