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Pilot operated check valves

Sun Hydraulics' pilot-to-open check cartridges are non-modulating, on-off devices used for holding a load or actuator in position. Sun pilot-to-open check cartridges can be directly integrated into your actuator or applied using manifolds with many mounting options. Offer protection against hose breaks Positively lock pressurized loads Are available in non-vented (3-port) and vented (3- and 4-port) versions Are physically interchangeable with counterbalance cartridges (same number of ports, same cavities, same flow path for a given frame size).

Symbol
Function
Description
Model

3D

Cavity
Nominal capacity
3-port
Pilot-to-open, standard pilot, steel seat

CKBB

CAD
T-163A
7.5 gpm (30 lpm)

CKCB

CAD
T-11A
15 gpm (60 lpm)

CKEB

CAD
T-2A
30 gpm (120 lpm)

CKGB

CAD
T-17A
60 gpm (240 lpm)

CKIB

CAD
T-19A
120 gpm (480 lpm)
3-port
Pilot-to-open, sealed pilot, steel seat

CKBD

CAD
T-163A
7.5 gpm (30 lpm)

CKBG

CAD
T-163A insert
7.5 gpm (30 lpm)

CKCD

CAD
T-11A
15 gpm (60 lpm)

CKED

CAD
T-2A
30 gpm (120 lpm)

CKGD

CAD
T-17A
60 gpm (240 lpm)

CKID

CAD
T-19A
120 gpm (480 lpm)
3-port + external pilot
Pilot-to-open, standard pilot, steel seat + external pilot

CKCB-B

CAD
T-11A
15 gpm (60 lpm)

CKEB-B

CAD
T-2A
30 gpm (120 lpm)

CKGB-B

CAD
T-17A
60 gpm (240 lpm)

CKIB-E

CAD
T-19A
120 gpm (480 lpm)
3-port
Pilot-to-open, fixed orifice, sealed pilot, steel seat

CNCE

CAD
T-11A
15 gpm (60 lpm)

CNEE

CAD
T-2A
30 gpm (120 lpm)

CNGE

CAD
T-17A
60 gpm (240 lpm)
3-port, vent to air
Pilot-to-open, sealed pilot, steel seat

CKCV

CAD
T-11A
15 gpm (60 lpm)

CKEV

CAD
T-2A
30 gpm (120 lpm)

CKGV

CAD
T-17A
60 gpm (240 lpm)

CKIV

CAD
T-19A
120 gpm (480 lpm)
4-port vented
Pilot-to-open, sealed pilot, steel seat

CVCV

CAD
T-21A
15 gpm (60 lpm)

CVEV

CAD
T-22A
30 gpm (120 lpm)

CVGV

CAD
T-23A
60 gpm (240 lpm)

CVIV

CAD
T-24A
120 gpm (480 lpm)
3-port insert style
Pilot-to-open, sealed pilot, steel seat, insert style

CKBM

CAD
T-162DP
7.5 gpm (30 lpm)
3-port
Pilot-to-open, pilot 5:1 , steel seat

9907-209-J03

T-11A
10 gpm (40 lpm)