Pressure Control Valves

RV08-29 — Relief, Direct-Acting, Poppet, Low Flow Valve
  Selection guide - similar valves.
  PDF file of this page.
  STP file for RV08-29.
  Request a quote.

RV08-29 Valve

RV08-29 Valve symbol

A screw-in, cartridge-style, direct-acting, poppet-type, hydraulic relief valve
intended for very low flow circuits that control pilot-operated valves.

The RV08-29 blocks flow from 1 to 2 until sufficient pressure is present at
1 to force the spring-opposed poppet from its seat.

• Adjustments cannot be backed out of the valve.
• Variety of pressure adjustment options including non-adjustable factory pre-set..
• Hardened poppet and cage for long life.
• Optional spring ranges to 241 bar (3500 psi).
• Smooth response to pressure surges.
• Industry common cavity.
• Compact size.

Operating Pressure: 241 bar (3500 psi) maximum
Proof Pressure: 482.6 bar (7000 psi)
Burst Pressure: 896.3 bar (16000 psi)
Flow: up to 1.9 lpm (0.5 gpm)
Internal Leakage: 3 ml/minute (0.18 cu. in./minute) max. to 80% of nominal setting
Crack Pressure Defined: bar (psi) evident at 0.95 lpm (0.25 gpm) attained
Reseat Pressure: Nominal 80% of crack pressure

Standard Spring Pressure Ranges: 17.2 to 241.3 bar (1300 to 3500 psi)
   Shown in To Order section. Due to manufacturing tolerances, it may be possible to
   adjust the valve either lower or higher than the nominal ratings shown. If the valve is
   adjusted beyond the recommended maximum pressure range for F and H style
   adjuster options, the valve may not open to relieve pressure.

Temperature: -40 to 100° C (-40 to 212° F) with Buna seals;
   -26 to 204° C (-15 to 400° F) with Fluorocarbon seals;
   -54 to 107° C (-65 to 225° F) with Polyurethane 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: VC08-2; See page 9.108_2w
Cavity Tool: CT08-2xx; See page 8.600.1
Seal Kit: SK08-2x-B; See page 8.650.1


RV08-29 Flow-Pressure

RV08-29 Valve Dimensions


Cartridge: Weight: 0.22 kg - 0.29 kg
(0.48 - 0.64 lb) depending on adjustment options. Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N O-rings and back-up standard. Anodized aluminum knobs and caps.

Standard Ported Body: Weight: 0.16 kg.
(0.35 lbs.); Anodized high-strength aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.
See page 8.008_2w.

Adjustment Option Details:

See page 6.003.1

RV08-29 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for RV08-29 Request a quote.