Pressure Control Valves

PR08-32 — Pressure Reducing/Relieving Valve
  Selection guide - similar valves.
  PDF file of this page.
  STP file for PR08-32.
  Request a quote.

PR08-32 Valve

SYMBOL:
PR08-32 Valve symbol

DESCRIPTION
A screw-in, cartridge-style, direct-acting, spool-type, hydraulic pressure
reducing/relieving valve with internal pilot and internal spring chamber drain,
designed to act as a pressure-regulating device for secondary circuits. It is
intended for use in stable input flow circuits.

OPERATION
In its steady state, the PR08-32 allows flow to pass bidirectionally from 2 to 1, with
the spring chamber constantly drained at 3. On attainment of a pre-determined pressure
at 1, the cartridge shifts to block flow at 2, thereby regulating pressure at 1. In this mode,
the valve also will relieve 1 to 3 at a variable value over the set reducing pressure.
Note: Direct-acting PR series valves may not be suitable for some static load applications.
Consult factory.

FEATURES
• Adjustments cannot be backed out of the valve.
• Adjustments prohibit springs from going solid.
• Optional spring ranges to 152 bar (2200 psi).
• Hardened spool and cage for long life.
• Compact, industry-common size.

RATINGS:
Operating Pressure: up to 240 bar (3500 psi)

Proof Pressure: 390 bar (5700 psi)
Flow: up to 11.4 lpm (3 gpm); see performance chart
Internal Leakage: Port 2 to 3: 82 cc/minute (5 cu. in/minute) max. at 207 bar (3000 psi)
   to 90% of nominal setting
Standard Spring Ranges (Reducing Function): 3.4 to 20.7 bar (50 to 300 psi);
   10.4 to 41.4 bar (150 to 600 psi); 20.7 to 82.8 bar (300 to 1200 psi);
   34.5 to 151.7 bar (500 to 2200 psi)
Temperature: -40 to 100°C (-40 to 212°F) with Buna seals;
   -26 to 204°C (-15 to 400°F) with fluorocarbon seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
   7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC08-3; See page 9.108_3w
Cavity Tool: CT08-3xx; See page 8.600.1
Seal Kit: SK08-3x-BM; See page 8.650.1

PERFORMANCE:

PR08-32 Flow-Pressure
  DIMENSIONS:
PR08-32 Valve Dimensions

MATERIALS:

Cartridge: Weight: 0.25 kg (0.55 lb); Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and back-ups standard. Anodized aluminum knobs.

Standard Ported Body:
Weight: 0.27 kg (0.60 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ. See page 8.008_3w.

Adjustment Option Details:
See page 6.003.1
  ORDERING CHART:

PR08-32 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for PR08-32. Request a quote.