Valves - Pressure Controls - Relief Valve - Direct Acting - Poppet Type

RVD50-20P

RELIEF VALVE PED

Overview

Description

The RVD50-20P is a screw in, cartridge style, direct acting, poppet type, hydraulic safety relief valve intended for use as a pressure limiting device for common hydraulic circuit protection. The RVD50-20P is suitable for use as a safety accessory in category IV group 2 applications according to the pressure equipment directive (PED) 2014/68/EU

Operation

The RVD50-20P blocks flow from port 1 to 2 until sufficient pressure is present at port 1 to force the poppet from its seat. The cartridge offers fast response to load changes in typical hydraulic circuits requiring low hysteresis, low pressure rise and low internal leakage

Features

  • PED-Certified to European Commission Pressure Equipment Directive 2014/68/EC.
  • Suitable for use as a safety accessory in PED Category IV Group 2 applications.
  • Salt spray protection to meet 1000 hour specifications.
  • Hardened poppet and cage for long life.
  • No maintenance required (or allowed).
  • Rapid response to pressure surges.
  • Industry-common cavity.
  • Spring ranges from 13.7 bar (200 psi) to 350 bar (5075 psi).
  • Poppet developed using computational fluid dynamics to ensure dynamic response with minimal friction.

Ratings

Pressure Ratings
Pressure rating
385 bar (5575 psi) Port 1
10.0 bar (145 psi) Port 2
Proof pressure
517.1 bar (7500 psi)
Burst pressure
1379 bar (20000 psi)
Crack pressure defined
Pressure evident at 0.95 lpm (0.25 gpm)
Reseat pressure
Nominal 85% of crack pressure
Flow Ratings
Flow rating
113.6 lpm (30 gpm) Port 1 to 2 at max pressure
Maximum internal leakage
1 ml/min (20 drops/min)
Temperature Ratings
Maximum operating fluid temperature
-40 to 100 °C (-40 to 212 °F) With buna N seals
-26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
-40 to 107 °C (-40 to 225 °F) With polyurethane seals with urethane seals
Storage temperature
-40 to 70 °C (-40 to 160 °F)
Ambient temperature
-40 to 70 °C (-40 to 160 °F)
Other Ratings
Corrosion protection
960 hr salt spray per ASTM b117

Operating Parameters

Fluids
Mineral based or synthetic with lubricating properties hydraulic fluids. For other fluids contact HydraForce
Fluid viscosity range
7.4 to 420 cSt
Maximum operating contamination level
18/16/13 per ISO 4406

Properties

Cartridge weight
0.20 kg (0.44 lb)
Internal wetted surface area
151 cm² (23.3 in²)

Performance

RVD50-20P_Chart

Dimensions

RVD50-20P_Dim

Materials

Materials

Cartridge: Weight: 0.25 kg. (0.56 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-up standard.

Standard Ported Body: Weight: 0.16 kg. (0.35 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Installation Specifications

Cavity
VC10-2
Cartridge installation torque
63.7 to 71.9 N-m (47 to 53 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK10-2X-B X=n, v, HV, P
SK10-2X-O X=u, bidirectional

Order code

RVD50-20P_Order