FLOW CONTROLS
EC50-43 Pressure Compensator, High Pressure
USASI/ISO:
SYMBOLS
PERFORMANCE
(Cartridge Only)
5.486.1
37.9/10
30.3/8
22.7/6
15.1/4
0
7.6/2
069
1000
138
2000
Bypass P > Priority P Priority P > Bypass P
207
3000
276
4000
345
5000
69
1000
138
2000
207
3000
276
4000
345
5000
LOAD PRESSURE bar/psi
FLOW lpm/gpm
Priority Flow vs. Load
12 gpm Inlet Flow; 150 psi Compensator Spring
32 cSt/150 sus oil at 40°C
45.4/12
DESCRIPTION
A screw-in, cartridge-style, priority-on-demand, pressure-compensator with a
dynamic load sense, intended to provide priority fl ow in the required amount,
while allowing excess fl ow to be used for auxiliary functions.
OPERATION
With inlet fl ow at ➂, the EC50-43 will deliver required priority fl ow at ➃, regardless of
load pressure. Excess fl ow exits at
➁. Port ➀ is the load sense port. All ports may be
fully pressurized.
FEATURES
• Hardened parts for long life.
• Quiet, modulated response.
• Industry common cavity.
RATINGS
Operating Pressure: Inlet: 345 bar (5000 psi)
Input Flow Rate: 45.4 lpm (12 gpm) maximum
Maximum Regulated Flow: 37.9 lpm (10 gpm) with 10.3 bar (150 psi) compensator
spring; 30.2 lpm (8.0 gpm) with 5.5 bar (80 psi) compensator spring
Flow Maintenance: see performance chart
Temperature: -40 to 120°C
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC10-4; See page 9.110.1
Cavity Tool: CT10-4-XXX; See page 8.600.1
Seal Kit: SK10-4P-TMB; See page 8.650.1
HYDRAFORCE
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®
Blue rectangles are links to other catalog pages.
DIMENSIONS
TO ORDER
EC50-43 - __ __ __ - __ - __ __ __
EC50-43
5.486.2
Compensator Spring
80 5.5 bar (80 psid)
150 10.3 bar (150 psid)
Cartridge: Weight: 0.17 kg. (0.37 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Ported Body: Weight: 0.68 kg.
(1.51 lbs.) Ductile Iron (code "D")
standard, consult factory for
weight, dimensions may differ.
Rated to 345 bar (5000 psi).
See page 8.010.1.
MATERIALS
with Dynamic Load Sense
Porting
Cartridge Only 0
SAE 6 (Ductile) 6TD
SAE 6 (Steel) 6TS
Seals
P Polyurethane (Std.)
®
HYDRAFORCE
HYDRAFORCE
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®
TORQUE:
33 to 37 ft-lbs
(45 to 50 Nm)
Blue rectangles are links to other catalog pages.
