FLOW CONTROLS
EC42-M40 Pressure Compensator
DESCRIPTION
A screw-in, cartridge-style pressure-compensating element intended for use with
a remote fi xed or variable orifi ce to yield a three-port (bypass-type), pressure-
compensated, fl ow regulating hydraulic valve.
OPERATION
The EC42-M40 maintains a constant fl ow rate from ➂ regardless of load pressure
changes in the circuit downstream of
➂.
The cartridge maintains a constant differential pressure from circuit point “P” to
port
➂ (see symbol), thereby regulating the hydraulic fl ow rate between the two
points in the circuit. The EC42-M40 is a priority type regulator, delivering pump fl ow
fi rst to
➂, then bypassing excess to ➁. All ports may be fully pressurized.
FEATURES
• Hardened parts for long life.
• Quiet, modulated response.
• Industry common cavity.
RATINGS
Operating Pressure: Inlet: 240 bar (3500 psi)
Maximum Inlet Flow: 302.8 lpm (80.0 gpm)
Maximum Regulated Flow: 151.1 lpm (40.0 gpm) with 5.5 bar (80 psi) compensating
spring; 208.2 lpm (55.0 gpm) with 10.3 bar (150 psi) compensating spring
Maximum Bypass Flow: 170.3 lpm (45.0 gpm) with 5.5 bar (80 psi) compensating
spring; 208.2 lpm (55.0 gpm) with 10.3 bar (150 psi) compensating spring
Flow Maintenance: see performance chart
Temperature: -40 to 120°C with Buna N seals
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: VC42-M4; See page 9.142.1
Cavity Tool: CT42-M4XX; See page 8.600.1
Seal Kit: SK42-4X-MMM; See page 8.650.1
USASI/ISO:
SYMBOLS
PERFORMANCE
(Cartridge Only)
5.458.1
7.62/0.3
10.16/0.4
12.70/0.5
15.24/0.6
5.08/0.2
ORIFICE DIAMETER mm/inch
Output Flow vs. Orifice Dia.
32 cSt/150 ssu oil at 110°F
37.9
10
FLOW lpm/gpm
75.7
20
2.54/0.1
113.6
30
151.4
40
189.3
50
227.2
60
80 psi Spring
150 psi Spring
3
2
1
4
HYDRAFORCE
.com
®
Blue rectangles are links to other catalog pages.
Cartridge: Weight: 1.56 kg. (3.44 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Standard Ported Body: Weight:
2.8 kg. (6.2 lbs.) Anodized high-
strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi). Ductile
iron bodies available; dimensions
may differ. See page 8.042.1
DIMENSIONS
MATERIALS TO ORDER
EC42-M40 - __ __ __ - __ - __ __ __
Porting
Cartridge Only 0
SAE 12 12T
SAE 16 16T
SAE 20 20T
EC42-M40
5.458.2
Seals
N Buna N (Std.)
V Fluorocarbon
Bias Spring
80 5.5 bar (80 psid)
150 10.3 bar (150 psid)
2.93
74.4
1.97
50.0
4.00
101.6
3.19
81.0
4.79
3
121.5
INCH
MILLIMETRE
2
1
1
4
1.88
ACROSS
M42 x 2.0
- 6g THREAD
FLATS
TORQUE -
65–75 ft-lbs
(88–102 Nm)
47.6
3
2
4
6.00
152.4
5.38
136.7
2.64
67.1
0.25
6.4
3.50
88.9
0.34
8.6
1.34
34.0
3.94
100.1
®
HYDRAFORCE
HYDRAFORCE
.com
®
Blue rectangles are links to other catalog pages.
