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.

Ratings

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)

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
0.65 kg (1.44 lb)
Internal wetted surface area
441 cm² (68.4 in²)

Performance

EC16-43_Flow-Pressure EC16-43_Flow-charts

Dimensions

EC16-43_Dim

Materials

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.

Installation Specifications

Cavity
VC16-4
Cartridge installation torque
133 to 138 N-m (98 to 102 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK16-4X-MMM X = seal option
SK10-4U-0 Urethane

Order Code

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
EC16-43_Order