Loadholding valves

Counterbalance valves are one of the more complex hydraulic valves, it's very important to choose the right one.

Picking the right counterbalance valve

Wrong choice of counterbalance valve is not only a major safety risk, as the load may not be held in place, but it can also create inefficient hydraulic systems. It may not operate at the desired speed, it may hack and act or the system becomes overheated.

The difference between pilot operated check valves and load holding valves

The simplest valve intended for holding loads is a pilot operated check valve. However, it only has an open or closed position and is unable to control the movement of the load. It's also not suitable if the load is transferred over a vertical position as it risks moving away. In that case it's better to choose a counterbalance valve which is why it's often called "Over center-valve”.

Sun's range of counterbalance valves often use the same cavity

Our pilot operated check valves and load holding valves from Sun Hydraulics usually have the same cavity. This makes them interchangeable with each other.

Welcome to get in touch with us!

Modell

Cavity

Nominal capacity

Pilot ratio

Pilot operated check valve

Manufacturer: Sun Hydraulics

3 ports, pilot-to-open, standard pilot, steel seat

Manufacturer: Sun Hydraulics

CKBB

T-163A

7.5 gpm (30 lpm)

3:1

CKCB

T-11A

15 gpm (60 lpm)

3:1

CKEB

T-2A

30 gpm (120 lpm)

3:1

CKGB

T-17A

60 gpm (240 lpm)

3:1

CKIB

T-19A

120 gpm (480 lpm)

3:1

Modell

Cavity

Nominal capacity

Pilot ratio

Pilot operated check valve

Manufacturer: Sun Hydraulics

3 ports, pilot-to-open, sealed pilot, steel seat

Manufacturer: Sun Hydraulics

CKBD

T-163A

7.5 gpm (30 lpm)

3:1

CKBG

T-163A insert

7.5 gpm (30 lpm)

3:1

CKCD

T-11A

15 gpm (60 lpm)

3:1

CKED

T-2A

30 gpm (120 lpm)

3:1

CKGD

T-17A

60 gpm (240 lpm)

3:1

CKID

T-19A

120 gpm (480 lpm)

3:1

Modell

Cavity

Nominal capacity

Pilot ratio

Pilot operated check valve

Manufacturer: Sun Hydraulics

3 ports, pilot-to-open, standard pilot, steel seat, external pilot

Manufacturer: Sun Hydraulics

CKCB-B

T-11A

15 gpm (60 lpm)

3:1

CKEB-B

T-2A

30 gpm (120 lpm)

3:1

CKGB-B

T-17A

60 gpm (240 lpm)

3:1

CKIB-E

T-19A

120 gpm (480 lpm)

3:1

Modell

Cavity

Nominal capacity

Pilot ratio

Pilot operated check valve

Manufacturer: Sun Hydraulics

3 ports, pilot-to-open, fixed orifice, sealed pilot, steel seat

Manufacturer: Sun Hydraulics

CNCE

T-11A

15 gpm (60 lpm)

3:1

CNEE

T-2A

30 gpm (120 lpm)

3:1

CNGE

T-17A

60 gpm (240 lpm)

3:1

Modell

Cavity

Nominal capacity

Pilot ratio

Pilot operated check valve

Manufacturer: Sun Hydraulics

3 ports, pilot-to-open, sealed pilot, steel seat, vent to air

Manufacturer: Sun Hydraulics

CKCV

T-11A

15 gpm (60 lpm)

3:1

CKEV

T-2A

30 gpm (120 lpm)

3:1

CKGV

T-17A

60 gpm (240 lpm)

3:1

CKIV

T-19A

120 gpm (480 lpm)

3:1

Modell

Cavity

Nominal capacity

Pilot ratio

Pilot operated check valve

Manufacturer: Sun Hydraulics

4 ports, pilot-to-open, sealed pilot, steel seat, vented

Manufacturer: Sun Hydraulics

CVCV

T-21A

15 gpm (60 lpm)

3:1

CVEV

T-22A

30 gpm (120 lpm)

3:1

CVGV

T-23A

60 gpm (240 lpm)

3:1

CVIV

T-24A

120 gpm (480 lpm)

3:1

Modell

Cavity

Nominal capacity

Pilot ratio

Pilot operated check valve

Manufacturer: Sun Hydraulics

3 ports, pilot-to-open, sealed pilot, steel seat, insert style

Manufacturer: Sun Hydraulics

CKBM

T-162DP

7.5 gpm (30 lpm)

3:1

Modell

Cavity

Nominal capacity

Pilot ratio

Pilot operated check valve

Manufacturer: Sun Hydraulics

3 ports, pilot-to-open, pilot 5:1, steel seat

Manufacturer: Sun Hydraulics

9907-209-J03

T-11A

10 gpm (40 lpm)

5:1

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, non vented, standard

Manufacturer: Sun Hydraulics

CBCB

T-11A

1,5:1

15 gpm (60 lpm)

CBCY

T-11A

2:1

15 gpm (60 lpm)

CBCL

T-11A

2,3:1

15 gpm (60 lpm)

CBCA

T-11A

3:1

15 gpm (60 lpm)

CBCG

T-11A

4,5:1

15 gpm (60 lpm)

CBCH

T-11A

10:1

15 gpm (60 lpm)

CBEW

T-2A

1:1

30 gpm (120 lpm)

CBEB

T-2A

1,5:1

30 gpm (120 lpm)

CBEY

T-2A

2:1

30 gpm (120 lpm)

CBEL

T-2A

2,3:1

30 gpm (120 lpm)

CBEA

T-2A

3:1

30 gpm (120 lpm)

CBEJ

T-2A

3:1

30 gpm (120 lpm)

CBEG

T-2A

4,5:1

30 gpm (120 lpm)

CBEH

T-2A

10:1

30 gpm (120 lpm)

CBGB

T-17A

1,5:1

60 gpm ( 240 lpm)

CBGY

T-17A

2:1

60 gpm (240 lpm)

CBGL

T-17A

2,3:1

60 gpm (240 lpm)

CBGA

T-17A

3:1

60 gpm (240 lpm)

CBGG

T-17A

4,5:1

60 gpm (240 lpm)

CBGH

T-17A

10:1

60 gpm (240 lpm)

CBIB

T-19A

1,5:1

120 gpm (480 lpm)

CBIY

T-19A

2:1

120 gpm (480 lpm)

CBIL

T-19A

2,3:1

120 gpm (480 lpm)

CBIA

T-19A

3:1

120 gpm (480 lpm)

CBIG

T-19A

4,5:1

120 gpm (480 lpm)

CBIH

T-19A

10:1

120 gpm (480 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, non vented, semi-restrictive

Manufacturer: Sun Hydraulics

CBBB

T-11A

1,5:1

10 gpm (40 lpm)

CBBL

T-11A

2,3:1

10 gpm (40 lpm)

CBBC

T-11A

3:1

10 gpm (40 lpm)

CBBD

T-11A

4,5:1

10 gpm (40 lpm)

CBDB

T-2A

1,5:1

20 gpm (80 lpm)

CBDL

T-2A

2,3:1

20 gpm (80 lpm)

CBDC

T-2A

3:1

20 gpm (80 lpm)

CBDD

T-2A

4,5:1

20 gpm (80 lpm)

CBFB

T-17A

1,5:1

40 gpm (160 lpm)

CBFL

T-17A

2,3:1

40 gpm (160 lpm)

CBFC

T-17A

3:1

40 gpm (160 lpm)

CBFD

T-17A

4,5:1

40 gpm (160 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, non vented, restrictive

Manufacturer: Sun Hydraulics

CBBY

T-11A

2:1

5 gpm (20 lpm)

CBBA

T-11A

3:1

5 gpm (20 lpm)

CBBG

T-11A

4,5:1

5 gpm (20 lpm)

CBDA

T-2A

3:1

8 gpm (30 lpm)

CBDG

T-2A

4,5:1

8 gpm (30 lpm)

CBFA

T-17A

3:1

15 gpm (60 lpm)

CBFG

T-17A

4,5:1

15 gpm (60 lpm)

CBHA

T-19A

3:1

20 gpm (80 lpm)

CBHG

T-19A

4,5:1

20 gpm (80 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, non vented, ultra-restrictive

Manufacturer: Sun Hydraulics

CBAB

T-11A

1,5:1

2,55 gpm (10 lpm)

CBAA

T-11A

3:1

2,55 gpm (10 lpm)

CBAG

T-11A

4,5:1

2,55 gpm (10 lpm)

CBAH

T-11A

10:1

2,55 gpm (10 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, non vented, fixed setting, standard

Manufacturer: Sun Hydraulics

CBCLX

T-11A

2,3:1

15 gpm (60 lpm)

CBCAX

T-11A

3:1

15 gpm (60 lpm)

CBCGX

T-11A

4,5:1

15 gpm (60 lpm)

CBCHX

T-11A

10:1

15 gpm (60 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, non vented, fixed setting, semi-restrictive

Manufacturer: Sun Hydraulics

CBBLX

T-11A

2,3:1

10 gpm (40 lpm)

CBBCX

T-11A

3:1

10 gpm (40 lpm)

CBBDX

T-11A

4,5:1

10 gpm (40 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, non vented, fixed setting, restrictive

Manufacturer: Sun Hydraulics

CBBAX

T-11A

3:1

5 gpm (20 lpm)

CBBGX

T-11A

4,5:1

5 gpm (20 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, non vented, fixed setting, ultra-restrictive

Manufacturer: Sun Hydraulics

CBABX

T-11A

1,5:1

2,5 gpm (10 lpm)

CBAAX

T-11A

3:1

2,5 gpm (10 lpm)

CBAGX

T-11A

4,5:1

2,5 gpm (10 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, atmospherically referenced, standard

Manufacturer: Sun Hydraulics

CACK

T-11A

1:1

15 gpm (60 lpm)

CACL

T-11A

2:1

15 gpm (60 lpm)

CACA

T-11A

3:1

15 gpm (60 lpm)

CACG

T-11A

5:1

15 gpm (60 lpm)

CAEK

T-2A

1:1

30 gpm (120 lpm)

CAEL

T-2A

2:1

30 gpm (120 lpm)

CAEA

T-2A

3:1

30 gpm (120 lpm)

CAEG

T-2A

5:1

30 gpm (120 lpm)

CAGK

T-17A

1:1

60 gpm (240 lpm)

CAGL

T-17A

2:1

60 gpm (240 lpm)

CAGA

T-17A

3:1

60 gpm (240 lpm)

CAGG

T-17A

5:1

60 gpm (240 lpm)

CAIK

T-19A

1:1

120 gpm (480 lpm)

CAIL

T-19A

2:1

120 gpm (480 lpm)

CAIA

T-19A

3:1

120 gpm (480 lpm)

CAIG

T-19A

5:1

120 gpm (480 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, atmospherically referenced, semi-restrictive

Manufacturer: Sun Hydraulics

CABK

T-11A

1:1

7,5 gpm (30 lpm)

CABG

T-11A

4,5:1

7,5 gpm (30 lpm)

CABN

T-11A

7:1

7,5 gpm (30 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

3 ports, non vented without pilot assist, standard

Manufacturer: Sun Hydraulics

CCCA

T-11A

No pilot

15 gpm (60 lpm)

CCEA

T-2A

No pilot

30 gpm (120 lpm)

CCGA

T-17A

No pilot

60 gpm (240 lpm)

CCIA

T-19A

No pilot

120 gpm (480 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve

Manufacturer: Sun Hydraulics

4 ports, vented, standard

Manufacturer: Sun Hydraulics

CWCK

T-21A

1:1

15 gpm (60 lpm )

CWCL

T-21A

2:1

15 gpm (60 lpm)

CWCA

T-21A

3:1

15 gpm (60 lpm)

CWCG

T-21A

5:1

15 gpm (60 lpm)

CWEK

T-22A

1:1

30 gpm (120 lpm)

CWEL

T-22A

2:1

30 gpm (120 lpm)

CWEA

T-22A

3:1

30 gpm (120 lpm)

CWEG

T-22A

5:1

30 gpm (120 lpm )

CWGK

T-23A

1:1

60 gpm (240 lpm)

CWGL

T-23A

2:1

60 gpm (240 lpm)

CWGA

T-23A

3:1

60 gpm (240 lpm)

CWGG

T-23A

5:1

60 gpm (240 lpm)

CWIK

T-24A

1:1

120 gpm (480 lpm)

CWIL

T-24A

2:1

120 gpm (480 lpm)

CWIA

T-24A

3:1

120 gpm (480 lpm)

CWIG

T-24A

5:1

120 gpm (480 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve LoadAdaptive

Manufacturer: Sun Hydraulics

3 ports, non-vented, standard

Manufacturer: Sun Hydraulics

CECA

T-11A

3:1

15 gpm (60 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve LoadAdaptive

Manufacturer: Sun Hydraulics

3 ports, non-vented, semi-restrictive

Manufacturer: Sun Hydraulics

CEBC

T-11A

3:1

10 gpm (40 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve LoadAdaptive

Manufacturer: Sun Hydraulics

3 ports, non-vented, restrictive

Manufacturer: Sun Hydraulics

CEBA

T-11A

3:1

5 gpm (20 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve/motion valve

Manufacturer: Sun Hydraulics

3 ports, load control valve, balanced cartridge, non vented

Manufacturer: Sun Hydraulics

MBEM

T-2A

Pilot pressure, see leaflet

30 gpm (120 lpm)

MBGM

T-17A

Pilot pressure, see leaflet

60 gpm (240 lpm)

MBIM

T-19A

Pilot pressure, see leaflet

120 gpm (480 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve/motion valve

Manufacturer: Sun Hydraulics

4 ports, load control valve, balanced cartridge, vented

Manufacturer: Sun Hydraulics

MWEM

T-22A

Pilot pressure, see leaflet

30 gpm (120 lpm)

MWGM

T-23A

Pilot pressure, see leaflet

60 gpm (240 lpm)

MWIM

T-24A

Pilot pressure, see leaflet

120 gpm (480 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve/motion valve

Manufacturer: Sun Hydraulics

3 ports, load control valve, load reactive, non vented

Manufacturer: Sun Hydraulics

MBEB

T-2A

1,5:1

30 gpm (120 lpm)

MBGB

T-17A

1,5:1

60 gpm (240 lpm)

MBIB

T-19A

1,5:1

120 gpm (480 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve/motion valve

Manufacturer: Sun Hydraulics

3 ports, load control valve, load reactive, non vented

Manufacturer: Sun Hydraulics

MBDA

T-11A

3:1

15 gpm (60 lpm)

MBEA

T-2A

3:1

30 gpm (120 lpm)

MBGA

T-17A

3:1

60 gpm (240 lpm)

MBIA

T-19A

3:1

120 gpm (480 lpm)

Modell

Cavity

Pilot ratio

Flow

Counterbalance valve/motion valve

Manufacturer: Sun Hydraulics

3 ports, load control valve, load reactive, non vented, fixed setting

Manufacturer: Sun Hydraulics

MBEB-x

T-2A

1,5:1

30 gpm (120 lpm)

MBGB-X

T-17A

1,5:1

60 gpm (240 lpm)

MBIB-X

T-19A

1,5:1

120 gpm (480 lpm)

Modell

Cavity