Created on 12/08/2016

 2016 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2

MODEL

CKEL

Pilot-to-open check valve with sealed pilot

SERIES 2 / CAPACITY: 120 L/min. / CAVITY: T-2A

This valve is a pilot to open check valve. It has a sealed pilot, a steel seat, and is non-vented. It allows free flow

from the valve (port 2) to the load (port 1) and blocks flow in the opposite direction. Pressure at the pilot (port 3) will

open the valve from port 1 to port 2. Pilot pressure needed at port 3 to open the valve is directly proportional to the

load pressure at port 1. Pressure at port 2 directly opposes pilot pressure.

TECHNICAL DATA

Cavity T-2A

Series 2

Capacity 120 L/min.

Pilot Ratio 3:1

Maximum Operating Pressure 350 bar

Maximum Valve Leakage at 110 SUS (24 cSt) 0,07 cc/min.

Valve Hex Size 28,6 mm

Valve Installation Torque 61 - 68 Nm

Seal kit - Cartridge Buna: 990202007

Seal kit - Cartridge Polyurethane: 990002002

Seal kit - Cartridge Viton: 990202006

Model Weight 0.24 kg.

(X)CONTROL

X Standard Pilot

L Manual Load Release

(C)CRACKING PRESSURE

C 30 psi (2 bar)

A 4 psi (0,3 bar)

B 15 psi (1 bar)

D 50 psi (3,5 bar)

E 75 psi (5 bar)

F 100 psi (7 bar)

(N)SEAL MATERIAL

N Buna-N

V Viton

snhy.com/

CKEL

Model Code Example: CKELXCNCONFIGURATION OPTIONS

Created on 12/08/2016

 2016 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2

TECHNICAL FEATURES

This 3 port pilot-to-open check valve and 3 port counterbalance valves are physically interchangeable (i.e. same cavities, same flow path for a given frame size).

However, cartridge extension dimensions from the mounting surface may vary.

Provides hose break protection, prevents loads from drifting and positively locks pressurized loads.

Extremely low leakage. The seat and poppet are heat treated for long life. If the load drifts due to the valve, the seat has probably been damaged by contamination

and the valve should be replaced.

Sealed pilot for use in circuits where cross port leakage is undesirable.

Pilot-to-open check cartridges are locking valves, not motion control valves. For motion control applications, use counterbalance valves.

This valve is identical to a CKED except for a high performance seal on the pilot piston.

For models with manual load release control option, turn load release clockwise to release load.

Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge

machining variations.

PERFORMANCE CURVES