Valves - Flow Controls - Pressure Compensated - Flow Regulators - Restrictive Type - Adjustable

FR50-28

ADJUSTABLE PRESSURE COMPENSATED RESTRICTIVE TYPE FLOW REGULATOR

Overview

Description

FR50-28X is a screw-in, adjustable, pressure compensated, restrictive type with reverse flow check flow regulator cartridge valve.

Operation

The valve opening increases from fully closed to fully open with counterclockwise adjustment rotation. With inlet at port 1 the FR50-28X valve will maintain preset flow rate from port 2 regardless of pressure variations in the circuit. The valve is intended for use with mineral based or synthetic fluids with lubricating properties.

Features

  • Hardened parts for long life.
  • Quiet, modulated response.
  • Industry-common cavity.
Pressure Ratings
Pressure rating:
  • 350 bar (5075 psi)
Proof pressure:
  • 690 bar (10000 psi)
Burst pressure:
  • 1379 bar (20000 psi)
Flow Ratings
Flow rating:
  • 0.8 to 34 lpm (0.2 to 9.0 gpm)
Maximum internal leakage:
  • 35 ml/min (2.5 in³/min ) At 5000 psi
Temperature Ratings
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
  • -54 to 107 °C (-65 to 225 °F) 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 (model number gfr50-28)
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Unit weight:
  • 0.13 kg (0.28 lb) Option A
Internal wetted surface area:
  • 100 cm² (15.55 in²)
FR50-28_Flow-Pressure(2022-02-24) FR50-28_Flow-Turns(2022-02-24)
FR50-23_Dim(2022-02-24)
Cavity:
Cartridge installation torque:
  • 45 to 50 N-m (33 to 37 ft-lb)
Cover cap torque:
  • 7 to 10 N-m (5 to 7 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK10-2X-M X = n, v, or P seal options
  • SK10-2U-O Urethane
FR50-28_Order(2022-02-24)
POSITION
CODE
DESCRIPTION
FR50-28F-H-J-/T
F
Adjustment Option
F
A
3/16" Hex Allen Head
F
C
3/16" Hex Allen Head with Cover Cap
H
Line Body
H
0
No Body
H
6T
Aluminum SAE 6
H
8T
Aluminum SAE 8
H
6TD
Ductile Iron SAE 6
H
8TD
Ductile Iron SAE 8
H
2B
Aluminum BSPP 1/4" (2)
H
3B
Aluminum BSPP 3/8" (3)
H
4B
Aluminum BSPP 1/2" (4)
H
4BD
Ductile Iron BSPP 1/2" (4)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
T
Flow setting
T
XX
Flow setting