Valves - Flow Controls - Pressure Compensator - Restrictive Type - Pre-Compensator

EC12-32

FLOW ON DEMAND PRESSURE COMPENSATING ELEMENT WITH STATIC LOAD SENSE

Overview

Description

EC12-32 is a screw-in, cartridge style, load sense, flow on demand, pressure compensator valve

Operation

With inlet flow at port 2, the EC12-32 will deliver required flow at port 3 regardless of load pressure sensed at port 1

note: 0.53 mm 0.021inorifice is recommended to be installed in load sense line at port 1 for better stability

Features

  • Choice of compensator springs
  • Hardened parts for long life.
  • Quiet, modulated response.
  • Industry-common cavity.

Ratings

Pressure Ratings
Pressure rating
241 bar (3500 psi)
Flow Ratings
Flow rating
57 lpm (15.0 gpm) With 5.5 bar (80 psi)compensating spring
76 lpm (20.0 gpm) With 7.6 bar (110 psi)compensating spring
83 lpm (22.0 gpm) With 11.0 bar (160 psi)compensating spring
114 lpm (30.0 gpm) With 15.2 bar (220 psi)compensating spring
Maximum internal leakage
49 ml/min (3.0 in³/min) At port 1 with pressure at port 2 (port 3 blocked)
241 bar (3500 psi)
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
Storage temperature
-40 to 70 °C (-40 to 160 °F)
Ambient temperature
-40 to 70 °C (-40 to 160 °F)
Other Ratings
Corrosion protection
960 hr salt spray per ASTM b117 (model number - gec12-32)

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
0.39 kg (0.87 lb)
Internal wetted surface area
258.4 cm² (40.05 in²)

Performance

EC12-32_Flow-Pressure

Dimensions

EC12-32_Dim

Materials

Materials

Cartridge: Weight: 0.39 kg (0.87 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

Standard Ported Body: Weight: 1.13 kg (2.5 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Installation Specifications

Cavity
VC12-3
Cartridge installation torque
45 to 50 N-m (33 to 37 ft-lb)
Maximum allowable torque
67.8 N-m (50 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK12-3X-MM X = seal option

Order code

POSITION
CODE
DESCRIPTION
EC12-32-H-J-R
H
Line Body
H
0
No Body
H
8T
Aluminum SAE 8
H
10T
Aluminum SAE 10
H
12T
Aluminum SAE 12
H
12TD
Ductile Iron SAE 12
H
6B
Aluminum BSPP 3/4" (6)
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
160
160 Compensator Spring
R
220
220 Compensator Spring
EC12-32_Order