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Cartridge Valves - Flow Control Valves - Pressure Compensated - Flow Divider / Combiner - Standard Accuracy

FD56-45

FLOW DIVIDING / COMBINING VALVE

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Overview

Description

The FD56-45 is a screw-in cartridge, spool type flow divider/combiner valve.

Operation

The cartridge valve provides pressure compensated proportional division of inlet flow or combining of two return flows regardless of system operating pressure conditions. The valve provides synchronizing flow in dividing and combining modes.

Features

  • Hardened parts for long life.
  • Quiet, modulated response.
  • Wide operating flow range.
  • Synchronizing in dividing and combining modes.
  • Floating cage — high installation torque.
  • Industry common cavity.
Pressure Ratings
Pressure rating:
  • 345 bar (5000 psi)
  • 420 bar (6090 psi) 10% duty cycle
Pressure drop:
  • 24 bar (300 psi) At maximum inlet flow
Flow Ratings
Inlet flow rating:
  • 25 to 98 lpm (6.5 to 26.0 gpm) Model code 44
  • 32 to 128 lpm (8.5 to 34.0 gpm) Model code 66
  • 57 to 167 lpm (15.0 to 44.0 gpm) Model code 88
  • 68 to 197 lpm (18.0 to 52.0 gpm) Model code 99
Synchronizing flow:
  • Approximately 10% of maximum inlet flow
Flow accuracy:
  • 10 % Of inlet flow for -22, -33, -44, -55 and -66 models
  • 15 % Of inlet flow for -88 and -99 models
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 90 °C (-40 to 194 °F)
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:
  • 0.38 kg (0.83 lb)
Internal wetted surface area:
  • 403 cm² (62.4 in²)
FD56-45_Performance-graphs(2022-02-24)
FD56-45_Dim(2022-02-24)
Cavity:
  • VC16-4
  • HVC16-4 for applications with pressure excursions up to 420 bar (6090 psi)
Cartridge installation torque:
  • 133 to 138 N-m (98 to 102 ft-lb)
  • 258 to 285 N-m (190 to 210 ft-lb) For applications with pressure excursions up to 6090 psi [420 bar]
Orientation restriction:
  • None
Seal kit:
  • SK16-4X-MMM X = seal option; buna n, fluorocarbon, polyurethane
  • SK16-4U-OOO Urethane
Housings:
FD56-45_Order(2022-02-24)

Model Options

FD56-45-H-J-N
H Line Body
CODE
DESCRIPTION
0
No Body
16T
Aluminum SAE 16
12TD
Ductile Iron SAE 12
16TD
Ductile Iron SAE 16
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
N Flow Dividing/Combining
CODE
DESCRIPTION
11
Not listed in outline
22
Not listed in outline
33
Not listed in outline
44
50/50 Rated at 25.0-98.0 lpm (6.5-26.0 gpm)
55
Not listed in outline
66
50/50 Rated at 32.0-34.0 lpm (8.5-34.0 gpm)
77
Not listed in outline
88
50/50 Rated at 57.0-167.0 lpm (15.0-44.0 gpm)
99
50/50 Rated at 68.0-197.0 lpm (18.0-52.0 gpm)

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