PRODUCT TYPE: Direct-Acting, RV08-22, Cartridge Pressure Relief Valve
APPLICATION To Hydraulic Blocks or Manifolds
CONNECTION TYPE: Threaded, Screw-in Connection
PART NOS.: FT-RV08 Series
Valve Cavity: VC08-2
Valve Housings: 08-2-Way Valve Housing
– Handling pressure adjustable, not backed out
– 3 Stages of pressing/spring range optional as per required
– Lower inner leakage, hardened parts for longer service life

RV08-22 Cartridge Pressure Relief Valve is designed as threaded, screw-in connection, cartridge mounting style, pressure relief direct-acting, poppet inner seat type relief cartridge valve, which is mostly used for limiting the hydraulic pressure in hydraulic circuits where requires large flow rate and lower inn oil leakage.
The RV08-22 pressure control relief cartridge valve should be equipped with valve block where the 1 to 2 port comes across in order the RV08-20 valve to block the flow from 2 to 1 until sufficient pressure at the 2 port have enough pressure to push the spring to opposed position from its seat.
RV08-20 pressure control relief cartridge valve supplied by Finotek are all hardened of working surface, and with surface treatment of zinc plated to anti rust exposed surface. And all of its cartridge valve anodized aluminum housing, valve cavity tooling and parts are available for future normal operation.

RV08-22 Cartridge Pressure Relief Valve Ordering Code

Example (Normal code): “FT-RV08-22A-N-15 ” Explanation As Below:

FT- RV08-22 A N 15
(1) (2) (3) (4) (5)

(1) Supplier = By Finotek
(2) Valve Type = RV08-22, Pressure Control 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 

RV08-22 Cartridge Pressure Relief Valve Technical Information

Working Operation Pressure: 221bar(3200psi)
Flow: See Performance Chart
Inner Leakage: 0~0.25cc/min.(5drops/min.) at 85% 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

RV08-22 Cartridge Pressure Relief Valve Symbol


RV08-22 Pressure Cartridge Valve Flow Performance

RV08-22 Cartridge Pressure Relief Valve Dimensions

RV08-22 Pressure Control Relief Cartridge valve Inner structure Dimensions