Valves - Flow Controls - Pressure Compensator - Priority Type - Pre-Compensator - Dynamic Load Sense

HEC32-43

PRIORITY ON DEMAND PRESSURE COMPENSATOR WITH DYNAMIC LOAD SENSE

Overview

Description

HEC32-43 is a screw-in, cartridge style, priority on demand pressure compensator with dynamic load sense, intended to provide priority flow in required amount while allowing excessive flow to used for auxillary functions.

Operation

With inlet flow at port 3, port 4 will deliver required priority flow regardless of load pressure. Excessive flow exits at port 2 and port 1 is a load sense port. All ports may be fully pressurizedt. A 1.09 mm (0.043 in) diameter orifice is recommended to be installed in load sense line at port 1 for better stability.

Features

  • Priority-on-demand
  • Dynamic load sense
  • Hardened parts for long life
  • Quiet, modulated response
  • 80 and 150 compensating springs
  • All HyPerformance products are tested to NFPA specification T2.6.1 and are tested at a verification level of 90% and an assurance of 99%

Ratings

Pressure Ratings
Pressure rating:
  • 350 bar (5075 psi)
  • 420 bar (6090 psi) (10% cycle life
Proof pressure:
  • 690 bar (10000 psi)
Burst pressure:
  • 1380 bar (20000 psi)
Flow Ratings
Inlet flow rating:
  • 568 lpm (150 gpm) Maximum
Priority flow rating:
  • 60% of maximum input flow
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 urethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °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

Unit weight:
  • 5.2 kg (11.5 lb)
Internal wetted surface area:
  • 1238 cm² (192 in²)

Installation Specifications

Cavity:
Cartridge installation torque:
  • 665 to 690 N-m (490 to 510 ft-lb) Steel/ductile iron cavity
Orientation restriction:
  • None

Accessories

Seal kit:
  • SK32-4N-MMM Buna N
  • SK32-4V-MMM Fluorocarbon
  • SK32-4U-OOO Urethane

Performance

HEC32-43_Perf1 HEC32-43_Perf2 HEC32-43_Perf3

Dimensions

HEC32-43_Dim

Materials

Materials

Cartridge: Steel with hardened work surfaces. Zinc-plated exposed surfaces; Urethane O-rings and no back-ups standard.

Order Code

POSITION
CODE
DESCRIPTION
HEC32-43-H-J-R
H
Line Body
H
0
No Body
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
U
PPDI Urethane
R
Compensator Spring
R
80
80 Compensator Spring
R
150
150 Compensator Spring
HEC32-43_Order