Relief Cartridges

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

A selection of relief valves and assemblies
  • 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

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Popular Models in This Family


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79 Matching Models
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Symbol Description Model Capacity Cavity
 
FLeX Series, 2-stage, solenoid-operated adjustable relief valve, normally vented FLeX Series, 2-stage, solenoid-operated adjustable relief valve, normally vented RVCK 15 gpm60 L/min. T-10A
 
FLeX Series, 2-stage, solenoid-operated adjustable relief valve, energize to vent FLeX Series, 2-stage, solenoid-operated adjustable relief valve, energize to vent RVCL 15 gpm60 L/min. T-10A
 
FLeX Series, 2-stage, solenoid-operated adjustable relief valve, normally blocked FLeX Series, 2-stage, solenoid-operated adjustable relief valve, normally blocked RVCN 25 gpm95 L/min. T-10A
 
FLeX Series, 2-stage, solenoid-operated adjustable relief valve, energize to block FLeX Series, 2-stage, solenoid-operated adjustable relief valve, energize to block RVCM 25 gpm95 L/min. T-10A
 
Pilot-operated, balanced piston relief valve Pilot-operated, balanced piston relief valve RPCC 12 gpm45 L/min. T-162A
RPEC 25 gpm95 L/min. T-10A
RPGC 50 gpm200 L/min. T-3A
RPIC 100 gpm380 L/min. T-16A
RPKC 200 gpm760 L/min. T-18A
 
Direct-acting relief valve Direct-acting relief valve RDBA 12 gpm45 L/min. T-162A
RDDA 25 gpm95 L/min. T-10A
RDFA 50 gpm200 L/min. T-3A
RDHA 100 gpm380 L/min. T-16A
RDJA 200 gpm760 L/min. T-18A
 
Low-pressure-range, direct-acting relief valve Low-pressure-range, direct-acting relief valve RGFA 50 gpm200 L/min. T-3A
 
Non-adjustable direct-acting relief valve Non-adjustable direct-acting relief valve RDDA3 25 gpm95 L/min. T-10A
RDFA3 50 gpm200 L/min. T-3A
 
Direct-acting relief valve, CE marked Direct-acting relief valve, CE marked RDDT 19.8 gpm75 L/min. T-10A
RDFT 20.8 gpm79 L/min. T-3A
 
Fast-acting, pilot-operated, balanced piston relief valve Fast-acting, pilot-operated, balanced piston relief valve RPEE 25 gpm95 L/min. T-10A
RPGE 50 gpm200 L/min. T-3A
RPIE 100 gpm380 L/min. T-16A
RPKE 200 gpm760 L/min. T-18A
 
Symbol Description Model Capacity Cavity
 
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QuickSelect™ LoadHolding Selector