Pressure Control Valves

RVD58-20 — Relief, Poppet-Type, High Pressure Valve
  Valve Features and Benefits.
  Selection guide - similar valves.
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RVD58-20 Valve

SYMBOL:
RVD58-20 Valve symbol

DESCRIPTION
A screw-in, cartridge-style, direct-acting, poppet-type, hydraulic relief valve intended for use as a pressure limiting device for common hydraulic circuit protection.

NOTE: The new RVD58-20 relief valve replaces the legacy RV08-20, RV58-20 and HRVD08-20 relief valve models.

OPERATION
The RVD58-20 blocks flow from 1 to 2 until sufficient pressure is present at 1 to force the poppet from its seat. The cartridge offers fast response to load changes in hydraulic circuits requiring low hysteresis, low pressure rise and low internal leakage.

For crossover applications, maximum recommended flow is 37.9 lpm (10 gpm) and maximum pressure is 207 bar (3000 psi).

FEATURES
• Compact and economical
• Dynamic response to pressure surges.
• Hardened poppet and cage for long life.
• Optional spring ranges to 350 bar (5076 psi).
• Embossed QR code provides serial number.
• High durometer Buna and Fluorocarbon seals.
• Optional cap.

RATINGS
Operating Pressure: 350 bar (5076 psi) at port 1; 207 bar (3000 psi) at port 2
Proof Pressure: 413 bar (10,000 psi) at port 1
Burst Pressure: 1379 bar (20000 psi)
Flow: Port 1 to 2: 37.9 lpm (10 gpm) at max pressure
   The Performance Chart illustrates flow handling capacity at maximum setting
   for each spring range option. Pressure rise will vary with spring (range) and
   with setting within range due to flow forces. Consult factory for specific flow
   characteristic values.
Internal Leakage: 0.25 ml/minute (5 drops/minute) max
Crack (Set) Pressure Defined: bar (psi) evident at 0.95 lpm (0.25 gpm) attained
Reseat Pressure: Nominal 90% of crack pressure
Standard Spring Ranges: 13.7 - 345 bar (200 - 5000 psi)
Temperature: -40 to 100 °C (-40 to 212 °F) with standard Buna N 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: Use VC08-2 Variation B cavity; See page 9.020.1
Cavity: VC08-2 Variation B; See page 9.108_2w
Cavity Tool: CT08-2XX; See page 8.600.1
Seal Kit: Standard Buna High Durometer: Buna N SK08-2HN-0; Fluorocarbon SK08-2HV-0.
For pressures above 245 bar (3500 psi) polyurethane seals are recommended. SK08-2P-0;
See page 8.650.1

PERFORMANCE:

RVD58-20 Performance Chart

  DIMENSIONS:
RVD58-20 Valve Dimensions

MATERIALS:

Cartridge: Weight: 0.28 kg. (0.13 lb.) Steel with hardened work surfaces. Zinc-plated exposed surfaces.

Standard Ported Body: Weight:
0.161 kg (0.355 lb). Anodized, high-strength aluminum body rated to
207 bar (3000 psi). Ductile iron
(Code D) rated for 350 bar (5,000 psi) also available. Weight 0.625 kg
(1.379 lb). See page 8.008_2w.
  ORDERING CHART:

RVD58-20 Ordering Chart

Valve Features and Benefits. Selection guide - similar valves.
PDF file of this page. Request a quote.