Valves - Directional Controls - Logic Element - Pilot to Close - with Flow Regulator

EPFR16-S35

PRESSURE COMPENSATING ELEMENT WITH INTERNAL ORIFICE

Overview

Description

EPFR16-S35 is a screw-in, cartridge style, bypass type pressure compensating element intended for use with remote fixed or variable orifice to provide a constant flow regardless of load pressure changes

Operation

It is spring biased spool type valve provided with a small internal orifice between ports 2 and 3 so that the valve would bypass all flow to tank at bias spring pressure value plus pressure rise at no load flow demand. The orifice is pressure compensated to restrict flow loss through it at load flow demand

Features

  • Multiple function in a single cavity.
  • Low bleed flow throughout the operating pressure range.
  • Range of bias spring options; tall adaptor required for higher pressures. An extra tall adaptor is required for the 240 psi bias spring option.
  • High system efficiency.
  • Industry-common cavity.

Ratings

Pressure Ratings
Pressure rating
241 bar (3500 psi)
Flow Ratings
Flow rating
See performance graph
Maximum internal leakage
0.4 lpm (0.10 gpm) Between ports 3 and 2 at 241 bar (3500 psi)
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
-54 to 107 °C (-65 to 225 °F) With polyurethane seals
Storage temperature
-40 to 70 °C (-40 to 160 °F)
Ambient temperature
-40 to 90 °C (-40 to 194 °F)

Operating Parameters

Fluids
Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range
7.4 to 420 cSt
Maximum operating contamination level
20/18/14 per ISO 4406

Properties

Cartridge weight
0.29 kg (0.64 lb) Standard
0.42 kg (0.92 lb) Tall adaptor
0.72 kg (1.59 lb) Tall adaptor for spring option 16.5 bar (240 psi)
Internal wetted surface area
223 cm² (34.5 in²) Standard
295 cm² (45.7 in²) Tall adaptor
375 cm² (58.2 in²) Tall adaptor for spring option 16.5 bar (240 psi)

Performance

EPFR16-S35_Perf_Chrt EPFR16-S35_Perf_Chrt2

Dimensions

EPFR16-S35_Dim_Dwg

Materials

Materials

Cartridge: Weight: 0.29 kg (0.64 lb) with standard adaptor; 0.42 kg (0.92 lb) with tall adaptor; 0.72 kg (1.59 lb) with extra tall adaptor for 240 psi spring option. Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N O-rings and polyester elastomer back-ups standard.

Ported Body : Weight: 1.50 kg (3.3 lb) Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi).

Installation Specifications

Cavity
VC16-S3
Cartridge installation torque
62.4 to 73.2 N-m (46 to 54 ft-lb)
Maximum allowable torque
136 N-m (100 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK16-S3X-MM X = seal option

Order code

POSITION
CODE
DESCRIPTION
EPFR16-S35C-H-J-R
C
Tall Cap
C
BLANK
Standard Cap
C
T
Tall Cap
H
Line Body
H
0
No Body
H
16T
Aluminum SAE 16
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Spring
R
10
10 psi Bias Spring
R
20
20 psi Bias Spring
R
40
40 psi Bias Spring
R
70
70 psi Bias Spring
R
90
90 psi Bias Spring
R
110
110 psi Bias Spring
R
160
160 psi Bias Spring
R
240
240 psi Bias Spring
EPFR16-S35_Order