PRODUCT TYPE: RM22-00, Poppet Type, Pilot Operated, Pressure Control, Cartridge Pressure Relief Valve
APPLICATION: To Hydraulic Blocks or Manifolds
CONNECTION TYPE: Threaded, Screw-in Connection
PART NOS.: FT-RM22 Series
Valve Cavity: Below
Valve Housings:
– Cover nut to protect abnormally adjustment
– Four pressure pre-setting stages
– High pressure cartridge valves for hydraulic packs

The hybrid design screw-in valve of pilot cartridge pressure relief valve combines pilot operated relief valve and a check valve function. The normal working condition of pilot cartridge relief valve is closed (The flow in P port is not allowed flowing to T port) while the working pressure at T port is below 90% pre-setting pressure of spring. The pilot cartridge pressure relief valve starts to flow from the P port to T port (Finally to the oil tank) until the system main pressure reaches to pressing limited pressure.

Finotek offers the pilot cartridge pressure relief valve with much smooth and quiet operation, oil dirt-tolerant, quick to pressure response and easily adjustment.

Cartridge Direct Operated Relief Valve-details

RM22-00 Cartridge Pressure Relief Valve Ordering Code

Example (Normal code): “FT-RM22-00A-N-15 ” Explanation As Below:


(1) Supplier = By Finotek
(2) Valve Type = RM22-00, Poppet Type, Pilot Operated, Relief Cartridge Valve
(3) Adjustment:  A= 1/4 in. Hex Allen Head ; B= 1-1/2 in. Dia. Alum. Knob ; C= Option A w/ Cover Cap

(4) Seals: N= Buna (Std.) ; V= Fluorocarbon
(5) Pressing Range:  15= 3.5 ~ 150bar ;  25= 20 ~ 250bar;  35= 50 ~ 315bar 

RM22-00 Cartridge Pressure Relief Valve Technical Information

Working Operation Pressure: 315bar(4568psi)
Flow: 63L/min.
Inner Leakage: Less than 0~80cc/min. at 80% ~ 90% nominal setting pressure
Working Tem.:  -30oC to +120oC
Standard Spring Ranges: Due to manufacturing tolerances, there is a possible to adjust the valve either lower or higher than the nominal ratings

Media Temperature: -30 to +80(°C)for NBR O-rings
Body/Housing Material:
Anodized 6061-T6 Aluminum alloy for pressure of 210bar(3045psi)
Oil Medium: Mineral oil as per DIN51 524, VDMA 24 568 or rapeseed oil, Viscosity 10 – 400 CST
Recommended Medium Filtration: ISO 4406 Standard, cleanliness class:20/18/15

RM22-00 Cartridge Pressure Relief Valve Symbol


RM22-00 Cartridge Relief Valve Flow Performance

Pilot Check Relief Cartridge Valve Curve

RM22-00 Cartridge Valve Dimensions & Cavity

Pilot Check Relief Cartridge Valve Dimensions