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

EC16-43

PRIORITY ON DEMAND PRESSURE COMPENSATOR WITH DYNAMIC LOAD SENSE

Overview

Description

EC16-43 is a screw-in, cartridge style, priority on demand pressure compensator valve with dynamic load sense. It is intended to provide priority flow in required amount, while allowing excessive flow to be used for auxiliary functions

Operation

With inlet flow at port 3, the EC16-43 will deliver required priority flow at port 4 regardless of load pressure. Excessive flow exits at port 2 and port 1 is the load sense port. All ports may be fully pressurized

Features

  • Priority-on-demand
  • Dynamic load sense
  • Hardened parts for long life.
  • Quiet, modulated response.
  • Industry-common cavity.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Proof pressure:
  • 690 bar (10000 psi)
Burst pressure:
  • 1275 bar (18500 psi)
Flow Ratings
Inlet flow rating:
  • 115 lpm (30.0 gpm) Maximum, with compensating spring 5.5 bar (80 psi)
  • 150 lpm (40.0 gpm) Maximum, with compensating spring 10.3 bar (150 psi)
  • 189 lpm (50.0 gpm) Maximum, with compensating spring 15.2 bar (220 psi)
Priority flow rating:
  • 80% of input flow when priority pressure exceeds bypass pressure; 50% of input inflow when bypass pressure exceeds priority pressure
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
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °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:
  • 0.65 kg (1.44 lb)
Internal wetted surface area:
  • 441 cm² (68.4 in²)
EC16-43_Flow-Pressure EC16-43_Flow-charts
EC16-43_Dim

Materials

Cartridge: Weight: 0.56 kg (1.23 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

Standard Ported Body: Weight: 1.5 kg (3.3 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Cavity:
Cartridge installation torque:
  • 133 to 138 N-m (98 to 102 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK16-4X-MMM X = seal option
  • SK10-4U-0 Urethane
EC16-43_Order
POSITION
CODE
DESCRIPTION
EC16-43-H-J-R
H
Line Body
H
0
No Body
H
12TD
Ductile Iron SAE 12
H
16TD
Ductile Iron SAE 16
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Compensator Spring
R
80
80 Compensator Spring
R
150
150 Compensator Spring
R
220
220 Compensator Spring