A screw-in cartridge, direct acting, spool type, pressure reducing/relieving valve with internal spring chamber drain, intended for use as a pressure regulating device. This valve maintains a constant secondary regulated/reduced pressure regardless of pressure variations in the primary system. In addition to the reducing function, this valve also provides a relief function from the reduced pressure port to the tank port, if pressure in the secondary circuit exceeds the set pressure.
Unit of Measure

Specifications

Type

Screw-In Cartridge Pressure Control Valve

Style

Pressure Reducing/Relieving, Direct Acting, Spool Type

Model Code Description

DR08-01-C-N-120H

Valve Model

DR08-01

Body

No Line Body, Cartridge Only

Seals

Buna-N

Adjustment Range

25 to 83 bar363 to 1200 psi

Adjustment Options

Knurled Hand Knob

Optional Setting

Set at Minimum Pressure for the Range

Operating Pressure

420 bar6000 psi

Nominal Flow

4 gpm15 L/min

Actuated Spring Pressure at 1 Revolution

14 %

Minimum Fluid Operating Temperature

-20 ºC-4 ºF

Maximum Fluid Operating Temperature

120 ºC248 ºF

Fluid Compatibility

Mineral-Based or Synthetics with Lubricating Properties

Viscosity

7.4 to 420 cSt50 to 2000 SUS

Filtration

21/19/16 or Cleaner (Per ISO 4406), Use with Filter Rated ß10 ≥ 200

Installation

No Orientation Restrictions

Cavity

FC08-3

Cavity Tools (Rougher)

02580086

Cavity Tools (Finisher)

02580087

Cartridge Weight

0.52 lb0.235 kg

Cartridge Material

Steel

Work Surface

Hardened

Exposed Surface

Zinc Plated

Knob Material

Anodized Aluminum

O-Ring Material

Buna-N or Viton®

Back-Up Ring Material

Polytetrafluoroethylene (PTFE)

Seal Kits

FS083-N, P/N: 03054795

Connection Type

Cartridge Only

Flow Direction

Bidirectional

Pressure Compensation

Pressure Reducing/Relieving

Action Type

Direct

Valve Operator

Knurled Hand Knob

Industry Standards/Certifications

International Organization for Standardization (ISO)

BUn

EA

Division

HYDRAULIC DIVISION

Product Group Family

CARTRIDGE VALVES-PRESS REDUCING/RELIEVIN

Product

CARTRIDGE VALVES

Operation

N/A The DR08-01 allows bidirectional flow between port 2 and port 1 with the spring chamber drained through port 3. Once the pressure setting is reached at port 1, the spool shifts to restrict the flow at port 2, thereby regulating pressure at port 1. If pressure at port 1 exceeds the setting of the valve, the spool will shift further and relieve excess pressure through port 3. Any pressure at port 3 is directly additive to valve pressure.

Features

N/A

  • Spring ranges up to 3000 psi (210 bar)
  • Positive stop prevents spring from over adjustment (options V,H)
  • Adjustable under full pressure
  • Stroke limiting device for enhanced safety
  • Fast response
  • All external surfaces zinc-plated
  • Hardened poppet to ensure minimal wear and extend service life
  • Industry common cavity