FLOW CONTROLS
EC10-40 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 EC10-40 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 USASI Symbol), thereby regulating the hydraulic fl ow rate between the
two points in the circuit. The EC10-40 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: 207 bar (3000 psi)
Flow Rate: 38 lpm (10 gpm) max. regulated; 57 lpm (15 gpm) max. input.
EC10-40 inlet pressure begins to rise over compensating pressure
when bypass oil exceeds 26 lpm (7 gpm).
Standard Compensator Bias Spring: 5.5 bar (80 psid)
Flow Maintenance: 0.38 to 1.86 lpm (0.1 to 0.49 gpm) settings ±20%;
1.89 to 5.64 lpm (0.5 to 1.49 gpm) settings ± 15%;
5.68 to 37.85 lpm (1.5 to 10 gpm) settings ±10%
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: CT10-4XX; See page 8.600.1
Seal Kit: SK10-4X-TMB; See page 8.650.1
USASI/ISO:
SYMBOLS
PERFORMANCE
(Cartridge Only)
5.442.1
5.1/.200
4.5/.175
3.8/.150
3.2/.125
2.5/.100
ORIFICE DIAMETER mm/inch
Output Flow vs. Orifice Dia.
with 80 psid Spring
32 cSt/150 ssu oil at 40°C
7.5
2
15.1
4
22.7
6
FLOW lpm/gpm
30.2
8
1.9/.075
37.9
10
1.3/.050
0.6/.025
HYDRAFORCE
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Cartridge: Weight: 0.16 kg. (0.35 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Standard Ported Body: Weight:
0.34 kg. (0.75 lbs.) Anodized high-
strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi). Ductile
iron bodies available; dimensions
may differ. See page 8.010.1
DIMENSIONS
MATERIALS TO ORDER
EC10-40 - __ __ __ - __ - __
Porting
Cartridge Only 0
SAE 6 6T
SAE 8 8T
1/4 in. BSP* 2B
3/8 in. BSP* 3B
*BSP Body;
U.K. Mfr. Only
EC10-40
5.442.2
Seals
N Buna N (Std.)
V Fluorocarbon
Compensator Spring
40 2.8 bar (40 psid)
80 5.5 bar (80 psid) standard
160 11.0 bar (160 psid)
®
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