Valves - Flow Controls - Pressure Compensated - Flow Divider - Combiner - Standard Accuracy

FD56-45

FLOW DIVIDING / COMBINING VALVE

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.

Ratings

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 model
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
-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)

Operating Parameters

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

Properties

Cartridge weight
0.38 kg (0.83 lb)
Internal wetted surface area
403 cm² (62.4 in²)

Performance

FD56-45_Performance-graphs

Dimensions

FD56-45_Dim

Materials

Materials

Cartridge: Weight: 0.38 kg (0.83 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

Ported Body: Ductile iron body required for operation over 207 bar (3000 psi). Aluminum bodies are available for lower pressure operation. FD-type bodies recommended but a standard 4-way body may also be used with Port 1 plugged.

Installation Specifications

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

Accessories

Seal kit
SK16-4X-MMM X = seal option; buna n, fluorocarbon, polyurethane
SK16-4U-OOO Urethane

Order code

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