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Products

Relief valves

Sun Hydraulics offers many different pressure limiting and pressure regulating relief cartridges that can be conveniently applied using many mounting options. Available in 2-, 3- and 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) Five sizes, 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) (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
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
Pilot Operated, Balanced Piston, Fast Acting

RPEE

T-10A
25 gpm (95 lpm)

RPGE

T-3A
50 gpm (200 lpm)

RPIE

T-16A
100 gpm (380 lpm)

RPKE

T-18A
200 gpm (760 lpm)
2 port
Pilot Operated, Balanced Poppet

RPES

T-10A
25 gpm (95 lpm)

RPGS

T-3A
50 gpm (200 lpm)

RPIS

T-16A
100 gpm (380 lpm)

RPKS

T-18A
200 gpm (760 lpm)
2 port
Pilot Operated, Balanced Poppet Soft

RPET

T-10A
25 gpm (95 lpm)

RPGT

T-3A
50 gpm (200 lpm)

RPIT

T-16A
100 gpm (380 lpm)

RPKT

T-18A
200 gpm (760 lpm)
2 port
Pilot Relief Valve Direct operated

RBAE

T-8A
2.5 gpm (10 lpm)

RBAC

T-10A
0.25 gpm (1 lpm)

RBAA

T-3A
0.5 gpm (2 lpm)
2 port
Relief Valve Thermal relief

RBAG

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

RBAM

T-162A
0,25 gpm (1 lpm)
2 port
Kick-Down

RQCB

T-162A
12 gpm (45 lpm)

RQEB

T-10A
25 gpm (95 lpm)

RQGB

T-3A
50 gpm (200 lpm)

RQIB

T-16A
100 gpm (380 lpm)

RQKB

T-18A
200 gpm (760 lpm)
2 port
Pilot Operated, Balanced Piston, Air Controlled

RPGD

T-3A
50 gpm (200 lpm)

RPID

T-16A
100 gpm (380 lpm)

RPKD

T-18A
200 gpm (760 lpm)
3 port
Pilot Operated, Balanced Piston, Ventable

RVBA

T-163A
7.5 gpm (30 lpm)

RVCA

T-11A
15 gpm (60 lpm)

RVEA

T-2A
30 gpm (120 lpm)

RVGA

T-17A
60 gpm (240 lpm)

RVIA

T-19A
120 gpm (480 lpm)
3 port
Pilot Operated, Balanced Poppet, Ventable

RVCS

T-11A
15 gpm (60 lpm)

RVES

T-2A
25 gpm (95 lpm)

RVGS

T-17A
50 gpm (200 lpm)

RVIS

T-19A
120 gpm (480 lpm)
3 port
Pilot Operated, Balanced Poppet, Ventable, Soft

RVET

T-2A
30 gpm (120 lpm)

RVGT

T-17A
60 gpm (240 lpm)

RVIT

T-19A
120 gpm (480 lpm)
3 port
Bypass Compensator, With Relief Function

RVBB

T-163A
5 gpm (20 lpm)

RVCB

T-11A
10 gpm (40 lpm)

RVEB

T-2A
20 gpm (80 lpm)

RVGB

T-17A
40 gpm (160 lpm)

RVIB

T-19A
80 gpm (320 lpm)
4 port
Pilot Operated, Balanced Piston, Ventable With External Drain

RVCD

T-21A
15 gpm (60 lpm)

RVED

T-22A
30 gpm (120 lpm)

RVGD

T-23A
60 gpm (240 lpm)

RVID

T-24A
120 gpm (480 lpm)
2 port
Electro-Proportional Pilot stage

RBAP

T-8A
0.25 gpm (1 lpm)
2 port
Electro-Proportional, inverse function

RBAN

T-8A
0.25 gpm (1 lpm)
2 port
Relief Valve Main Stage Balanced Piston

RPEC8

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
Relief Valve Main Stage Balanced Poppet

RPGS8

T-3A
50 gpm (200 lpm)

RPIS8

T-16A
100 gpm (380 lpm)

RPKS8

T-18A
200 gpm (760 lpm)
3 port
Relief Valve Main Stage Balanced Piston

RSDC8

T-11A
15 gpm (60 lpm)

RSFC8

T-2A
30 gpm (120 lpm)

RSHC8

T-17A
60 gpm (240 lpm)

RSJC8

T-19A
120 gpm (480 lpm)
3 port
Relief Valve Main Stage Balanced Poppet

RSFS8

T-2A
30 gpm (120 lpm)

RSHS8

T-17A
60 gpm (240 lpm)

RSJS8

T-19A
120 gpm (480 lpm)
4 port
Relief Valve Main Stage Balanced Piston

RVCD8

T-21A
15 gpm (60 lpm)

RVED8

T-22A
30 gpm (120 lpm)

RVGD8

T-23A
60 gpm (240 lpm)

RVID8

T-24A
120 gpm (480 lpm)
3 port
Direct acting

HRDA

T-11A
10 gpm (40 lpm)
4 port
Normally closed, balanced piston modulating element with integral pilot control cavity

HVCA8

T-21A
10 gpm (40 lpm)
2 port
Direct acting Bidirectional

RBFA

T-3A
50 gpm (200 lpm)
4 port
Pilot operated, balanced piston, ventable

HVCA

T-21A
10 gpm (40 lpm)