Symbol

Description

EC56-42 is a screw-in, cartridge style, priority on demand pressure compensator valve with static load

sense. Intended to provide priority flow in required amount, while allowing excessive flow to be used for

auxiliary functions

Operation

With inlet flow at port 3, the EC56-42 will deliver required priority flow at port 4 regardless of load

Hardened parts for long life.

Quiet, modulated response.

Industry common cavity.

Optional corrosion-resistant plating for 960-hour salt spray per ASTM B117.

Overview

Ratings

Pressure Ratings

Pressure rating

345 bar (5000 psi)

Proof pressure

150 lpm (40.0 gpm) - Note: Maximum, with compensating spring 10.3 bar (150 psi)

189 lpm (50.0 gpm) - Note: Maximum, with compensating spring 15.2 bar (220 psi)

Priority flow rating

- Note: 80% of input flow when priority pressure exceeds bypass pressure. 50% of input

flow when bypass pressure exceeds priority pressure

Temperature Ratings

Operating fluid temperature

-40 to 100 °C (-40 to 212 °F) - Note: With buna N seals

-26 to 204 °C (-15 to 400 °F) - Note: With fluorocarbon seals

-54 to 107 °C (-65 to 225 °F) - Note: With polyurethane seals

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

Unit weight

0.67 kg (1.48 lb)

Internal wetted surface area

Performance

Dimensions

Materials

133 to 138 N-m (98 to 102 ft-lb)

Orientation restriction

None

Accessories

Seal kit

SK16-4X-MMM - Note: X = seal option

SK10-4U-0 - Note: Urethane

Housings

Order Code

POSITION CODE DESCRIPTION

J N Buna-N

J V Fluorocarbon

J P Polyurethane

R Compensator Spring

R 80 80 Compensator Spring

R 150 150 Compensator Spring