FLOW CONTROLS

EC50-30 Pressure Compensator, High Pressure

DESCRIPTION

A screw-in, cartridge-style pressure-compensating element, intended for use with a

remote ﬁ xed or variable oriﬁ ce to yield a two-port-type, pressure-compensated, ﬂ ow

regulating hydraulic valve for use in high pressure circuits.

OPERATION

The EC50-30 maintains a constant ﬂ ow rate from ➁ regardless of load pressure

changes in the circuit downstream of

➁.

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.

FEATURES

• Hardened parts for long life.

• Quiet, modulated response.

• Industry common cavity.

RATINGS

Operating Pressure: 345 bar (5000 psi)

Regulated Flow Rate: 30.3 lpm (8 gpm) max.

Standard Compensator Bias Spring: 5.5 bar (80 psid)

Flow Maintenance: ±10% from 0.38 to 38 lpm (0.1 to 10 gpm)

at pressures from 5.5 to 345 bar (80 to 5000 psi)

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: VC10-3; See page 9.110.1

Cavity Tool: CT10-3XX; See page 8.600.1

Seal Kit: SK10-3P-TB; See page 8.650.1

USASI: ISO:

SYMBOLS

PERFORMANCE

(Cartridge Only)

5.406.1

5.1/.200

4.5/.175

3.8/.150

3.2/.125

2.5/.100

ORIFICE DIAMETER mm/inch

Output Flow vs. Orifice Dia.

32 cSt/150 ssu oil at 40°C

7.5

15.1

22.7

FLOW lpm/gpm

30.2

1.9/.075

37.9

1.3/.050

0.6/.025

HYDRAFORCE

.com

Blue rectangles are links to other catalog pages.

Cartridge: Weight: 0.11 kg. (0.25 lbs.)

Steel with hardened work surfaces.

Zinc-plated exposed surfaces.

Polyurethane O-rings and

Fluorocarbon back-ups standard.

Ported Body: Weight: 0.64 kg.

(1.41 lbs.) Ductile Iron (code "D")

standard, consult factory for weight,

dimensions may differ. Rated to

345 bar (5000 psi).

See page 8.010.1

DIMENSIONS

MATERIALS TO ORDER

EC50-30 - __ __ __ - __ - 80

Compensator Spring

80 5.5 bar (80 psid) standard

Porting

Cartridge Only 0

SAE 6 (Ductile) 6TD

SAE 6 (Steel) 6TS

Seals

P Polyurethane (Std.)

EC50-30

5.406.2

HYDRAFORCE

.com

TORQUE:

33 to 37 ft-lbs

(45 to 50 Nm)

Blue rectangles are links to other catalog pages.