Directional Valves

EPFR58-35 — Logic Element and Flow Regulator
   Selection guide - similar valves.
   PDF file of this page.
   STP file for EPFR58-35.
   Request a quote.

EPFR58-35 Valve

SYMBOL:
EPFR58-35 Valve symbol

DESCRIPTION
A screw-in, cartridge-style, bypass-type, pressure-compensating element, with
integral flow regulator for load sense signal drain. The internal pressure-compensated
flow regulator restricts the load signal bleed flow in order to minimize system losses
even at high operating pressures. The main compensator element holds the valves
primary flow constant regardless of load pressure changes.

OPERATION
The EPFR58-35 is a spring-biased spool-type valve with an internal pressure-compensated
flow regulator between 2 and 3. When used as a pump unloading compensator, this valve will
bypass flow to tank at port 2 when system pressure reaches the load pressure plus the bias
spring value. When the system load is neutralized, the load signal is bled through the flow
regulator bringing the valve to stand-by condition.

FEATURES
• Multiple function in a single cavity.
• Low bleed flow throughout the operating pressure range.
• High system efficiency.
• Industry-common cavity.

RATINGS
Operating Pressure: Cartridge only: 345 bar (5000 psi) with polyurethane seals;
   Aluminum housing: 207 bar (3000 psi); Ductile iron housing: 345 bar (5000 psi)
Flow: Up to 38 lpm (10 gpm)
Maximum Flow Loss: between 3 and 2: 0.95 lpm (0.25 gpm) at 345 bar (5000 psi)
Bias Springs: Code 80: 5.5 bar (80 psi); Code: 110: 7.6 bar (110 psi); Code 150: 10.3 bar (150 psi)
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: VC08-3; See page 9.108.1_3w
Cavity Tool: CT08-3xx; See page 8.600.1
Seal Kit: SK08-3x-MM; See page 8.650.1

PERFORMANCE:

EPFR58-35 Valve Performance Chart
  DIMENSIONS:
EPFR58-35 Valve Dimensions

MATERIALS:

Cartridge: Weight: 0.11 kg (0.25 lb);
Steel with Zinc-plated exposed surfaces; Buna N O-rings and back-ups standard.

Ported Body
: Weight: 0.64 kg
(1.41 lb); Ductile iron (code ‘D’); dimensions may differ from illustration above; rated to 345 bar (5000 psi);
See page 8.008.1_3w

Ported Body
: Weight: 0.36 kg (0.80 lb); Anodized high-strength aluminum alloy, rated to 207 bar (3000 psi);
See page 8.008.1_3w
  ORDERING CHART:

EPFR58-35 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for EPFR58-35 Request a quote.