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Your supplier of hydraulic components and industrial shock absorbers

Products

Relief valves

Sun Hydraulics offers pressure-limiting and pressure-regulating relief cartridges with a variety of mounting options with 2, 3, or 4 ports.

- Functionally interchangeable (except pilot-only versions) with valves with the same number of ports (same flow path, same cavity for a given frame size)
- Flow rates up to 200 gpm (800 L/min.)
- Versions are available with an integral pilot control cavity that accepts Sun's T-8A pilot pressure controls — electro-proportional or pneumatic
- Fully adjustable up to and including 5000 psi (350 bar) or 6000 psi (420 bar) intermittent, except air-piloted versions

Symbol
Function
Description
Model

3D

Cavity
Nominal capacity
2 port
Pilot operated, balanced piston

RPCC

CAD
T-162A
12 gpm (45 lpm)

RPEC

CAD
T-10A
25 gpm (95 lpm)

RPGC

CAD
T-3A
50 gpm (200 lpm)

RPIC

CAD
T-16A
100 gpm (380 lpm)

RPKC

CAD
T-18A
200 gpm (760 lpm)
2 port
Direct-acting

RDBA

CAD
T-162A
12 gpm (45 lpm)

RDDA

CAD
T-10A
25 gpm (95 lpm)

RDDB

T-13A
25 gpm (95 lpm)

RDFA

CAD
T-3A
50 gpm (200 lpm)

RDHA

CAD
T-16A
100 gpm (380 lpm)

RDJA

CAD
T-18A
200 gpm (760 lpm)
2 port
Low-pressure-range, direct-acting

RGFA

CAD
T-3A
10 gpm (40 lpm)
2 port
Non-adjustable direct-acting

RDDA3

CAD
T-10A
25 gpm (95 lpm)

RDFA3

CAD
T-3A
50 gpm (200 lpm)
2 port
Direct-acting, CE marked

RDDT

CAD
T-10A
up to 19.8 gpm (75 lpm) see chart

RDFT

CAD
T-3A
up to 20.8 gpm (79 lpm) see chart
2 port
Fast-acting, pilot operated, balanced piston

RPEE

CAD
T-10A
25 gpm (95 lpm)

RPGE

CAD
T-3A
50 gpm (200 lpm)

RPIE

CAD
T-16A
100 gpm (380 lpm)

RPKE

CAD
T-18A
200 gpm (760 lpm)
2 port
Pilot operated, balanced poppet

RPES

CAD
T-10A
25 gpm (95 lpm)

RPGS

CAD
T-3A
50 gpm (200 lpm)

RPIS

CAD
T-16A
100 gpm (380 lpm)

RPKS

CAD
T-18A
200 gpm (760 lpm)
2 port
Anti Shock, pilot operated, balanced poppet

RPET

CAD
T-10A
25 gpm (95 lpm)

RPGT

CAD
T-3A
50 gpm (200 lpm)

RPIT

CAD
T-16A
100 gpm (380 lpm)

RPKT

CAD
T-18A
200 gpm (760 lpm)
2 port
Direct acting, pilot capacity

RBAA

CAD
T-3A
0.5 gpm (2 lpm)

RBAC

CAD
T-10A
0.25 gpm (1 lpm)

RBAE

CAD
T-8A
2.5 gpm (10 lpm)
2 port
Thermal relief

RBAG

T-162A
0,25 gpm (1 lpm)
2 port
Thermal relief, flow-thru

RBAM

T-162A
0,25 gpm (1 lpm)
2 port
Kick-down, pilot operated, balanced piston

RQCB

CAD
T-162A
12 gpm (45 lpm)

RQEB

CAD
T-10A
25 gpm (95 lpm)

RQGB

CAD
T-3A
50 gpm (200 lpm)

RQIB

CAD
T-16A
100 gpm (380 lpm)

RQKB

CAD
T-18A
200 gpm (760 lpm)
2 port
Air-controlled, pilot operated, balanced piston

RPGD

CAD
T-3A
50 gpm (200 lpm)

RPID

CAD
T-16A
100 gpm (380 lpm)

RPKD

CAD
T-18A
200 gpm (760 lpm)
2 port
Air-controlled, direct-acting, pilot capacity

RBAB

CAD
T-3A
0,5 gpm (2 lpm)

RBAR

CAD
T-8A
2,5 gpm (10 lpm)
3 port
Ventable, pilot operated, balanced piston

RVBA

CAD
T-163A
7.5 gpm (30 lpm)

RVCA

CAD
T-11A
15 gpm (60 lpm)

RVEA

CAD
T-2A
30 gpm (120 lpm)

RVGA

CAD
T-17A
60 gpm (240 lpm)

RVIA

CAD
T-19A
120 gpm (480 lpm)
3 port
Ventable, pilot operated, balanced poppet

RVCS

CAD
T-11A
15 gpm (60 lpm)

RVES

CAD
T-2A
25 gpm (95 lpm)

RVGS

CAD
T-17A
50 gpm (200 lpm)

RVIS

CAD
T-19A
120 gpm (480 lpm)
3 port
Anti Shock, ventable, pilot operated, balanced poppet

RVET

CAD
T-2A
30 gpm (120 lpm)

RVGT

CAD
T-17A
60 gpm (240 lpm)

RVIT

CAD
T-19A
120 gpm (480 lpm)
3 port
Dual, direct-acting relief valve, pilot capacity

RBAD

CAD
T-11A
0.25 gpm (1 lpm)
3 port
Direct-acting - after check

HRDB

CAD
T-11A
10 gpm (40 lpm)
3 port
Direct-acting - before check

HRDA

CAD
T-11A
10 gpm (40 lpm)
4 port
Ventable, pilot operated, balanced piston - before check

HVCA

CAD
T-21A
10 gpm (40 lpm)
4 port
Ventable, pilot operated, balanced piston relief main stage with integral T-8A control cavity - before check

HVCA8

CAD
T-21A
10 gpm (40 lpm)
4 port
Ventable, pilot operated, balanced piston, drain to port 4

RVCD

CAD
T-21A
15 gpm (60 lpm)

RVED

CAD
T-22A
30 gpm (120 lpm)

RVGD

CAD
T-23A
60 gpm (240 lpm)

RVID

CAD
T-24A
120 gpm (480 lpm)
2 port
Pilot operated, balanced piston relief main stage with integral T-8A control cavity

RPEC8

CAD
T-10A
25 gpm (95 lpm)

RPGC8

CAD
T-3A
50 gpm (200 lpm)

RPIC8

CAD
T-16A
100 gpm (380 lpm)

RPKC8

CAD
T-18A
200 gpm (760 lpm)
2 port
Pilot operated, balanced poppet relief main stage with integral T-8A control cavity

RPES8

CAD
T-10A
25 gpm (95 lpm)

RPGS8

CAD
T-3A
50 gpm (200 lpm)

RPIS8

CAD
T-16A
100 gpm (380 lpm)

RPKS8

CAD
T-18A
200 gpm (760 lpm)
4 port
Ventable, pilot operated, balanced piston relief main stage with integral T-8A control cavity and drain to port 4

RVCD8

CAD
T-21A
15 gpm (60 lpm)

RVED8

CAD
T-22A
30 gpm (120 lpm)

RVGD8

CAD
T-23A
60 gpm (240 lpm)

RVID8

CAD
T-24A
120 gpm (480 lpm)
2 port
Electro-proportional relief valve - pilot capacity

RBAP

CAD
T-8A
0.25 gpm (1 lpm)
2 port
Electro-proportional relief valve - pilot capacity, high pressure setting with no command

RBAN

CAD
T-8A
0.25 gpm (1 lpm)
3 port
Normally closed modulating element valve with relief function

RVBB

CAD
T-163A
5 gpm (20 lpm)

RVCB

CAD
T-11A
10 gpm (40 lpm)

RVEB

CAD
T-2A
20 gpm (80 lpm)

RVGB

CAD
T-17A
40 gpm (160 lpm)

RVIB

CAD
T-19A
80 gpm (320 lpm)
3 port
Pilot operated, balanced piston sequence main stage with integral T-8A control cavity

RSDC8

CAD
T-11A
15 gpm (60 lpm)

RSFC8

CAD
T-2A
30 gpm (120 lpm)

RSHC8

CAD
T-17A
60 gpm (240 lpm)

RSJC8

CAD
T-19A
120 gpm (480 lpm)
3 port
Pilot operated, balanced poppet sequence main stage with integral T-8A control cavity

RSDS8

CAD
T-11A
15 gpm (60 lpm)

RSFS8

CAD
T-2A
30 gpm (120 lpm)

RSHS8

CAD
T-17A
60 gpm (240 lpm)

RSJS8

CAD
T-19A
120 gpm (480 lpm)
2 port
Bi-directional direct-acting relief valve

RBFA

CAD
T-3A
50 gpm (200 lpm)