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

FD50-44

FLOW DIVIDER/COMBINER

Overview

Description

The FD50-44 is a screw-in cartridge, spool type flow divider/combiner valve

Operation

The valve provides pressure compensated proportional division of inlet flow or combining of two return flows regardless of system operating pressure conditions. The valve is intended for use in mineral based or synthetic hydraulic fluids with lubricating properties

Features

  • Choice of flow ranges.
  • Quiet, modulated response.
  • Wide operating flow range.
  • Accurate division or combination of flow.
  • Optional corrosion-resistant plating.
  • Industry-common cavity.

Ratings

Pressure Ratings
Pressure rating:
  • 345 bar (5000 psi)
Burst pressure:
  • 1034 bar (15000 psi)
Flow Ratings
Inlet flow rating:
  • 2.0 to 7.0 lpm (0.5 to 1.8 gpm) Model code 99
  • 2.5 to 9.5 lpm (0.7 to 2.5 gpm) Model code 11
  • 4 to 19 lpm (1.0 to 5.0 gpm) Model code 22
  • 7.5 to 38 lpm (2.0 to 10.0 gpm) Model code 44
Synchronizing flow:
  • Approximately 10% of maximum inlet flow
Flow accuracy:
  • 5 % Of inlet flow at maximum flow rate
  • 10 % Of inlet flow at minimum flow rate
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)
Other Ratings
Corrosion protection:
  • 960 hr salt spray per ASTM b117 (model number - gfd50-44)

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

Unit weight:
  • 0.11 kg (0.25 lb)
Internal wetted surface area:
  • 164 cm² (25.4 in²)

Performance

FD50-44_Flow-Pressure

Dimensions

FD50-44_Dim

Materials

Materials

Cartridge: Weight: 0.11 kg (0.25 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces.

Special FD-Type Ported Body: Ductile iron, required for operation over 207 bar (3000 psi). Aluminum bodies are available for lower pressure operation.

Installation Specifications

Cavity:
Cartridge installation torque:
  • 65 to 71 N-m (48 to 52 ft-lb)
Orientation restriction:
  • None

Accessories

Seal kit:
  • SK10-4X-MMM X=seal option
  • SK10-4U-000 Urethane

Order Code

POSITION
CODE
DESCRIPTION
FD50-44-H-J-N
H
Line Body
H
0
No Body
H
6T
Aluminum SAE 6
H
6TD
Ductile Iron SAE 6
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
N
Flow Dividing/Combining
N
11
50/50 Rated at 2.5-9.5 lpm (0.7-2.5 gpm)
N
22
50/50 Rated at 4.0-19.0 lpm (1.0-5.0 gpm)
N
33
Not listed in outline
N
44
50/50 Rated at 7.5-38.0 lpm (2.0-10.0 gpm)
N
66
Not listed in outline
N
99
50/50 Rated at 2.0-7.0 lpm (0.5-1.8 gpm)
FD50-44_Order