Pilot Check Valves - Cartridge Style
PCR0.S08
SAE Cartridge - 350 bar
Direct acting check valve
Pilot piston to open
Description
Cartridge style, normally closed, single pilot check valve. Cartridge is closed until sufficient pressure is applied on port 2 to reach the bias spring setting, lift the poppet and allow free flow to 1. The valve is normally closed from 1 to 2. When sufficent pressure is applied on port 3, the pilot piston lifts the poppet from its seat and allows flow from 1 to 2. Very limited leakage in the check condition.
Technical Features
All external surfaces are zinc plated and corrosion- proof. All valve parts are made of high strength steel. Poppet is hardened and ground to guarantee minimal wear and to extend service life. Pilot piston is hardened and ground, sealed to prevent leakage. High durometer, extrusion resistant seals. Optional bias springs for back-pressure application flexibility. Industry commonly used hybrid cavity.
Technical data
Maximum operating pressure
350 bar
Maximum flow
30 l/min
Pilot ratio
3 : 1
Maximum internal leakage
0,1 cm3/min @ 10 bar 0,1 cm3/min @ 350 bar
External component treatment
Zn/Fe - standard (96h)Zn/Ni (720h) - Upon customer request
O-ring temperature range
-30 ° C to 110 ° C (standard sealing NBR - BUNA - N)-35 ° C to 140 ° C - HNBR - Upon customer request-23 ° C to 225 ° C - FKM - Upon customer request
Oil temperature range
-30 ° C to 110 ° C
Fluids
Mineral - based or synthetics with lubricating properties
Viscosities
7,4 to 420 cSt
Filtration
20 / 18 / 15 ISO 4406 (maximum filtration admitted)
Orientation
No restrictions
Installation torque
40 - 45 Nm Hex 22
Oil testing condition
ISO VG 46 cSt
Seal Kit
SK.047
Weight
0,075 Kg
Cross Section
Cavity Details
Performance details
Spring Options:
Click here to change the graphNote:
The performance chart illustrates flow handling capacity for significant spring options. p/Q curves are recorded at TOil = 40°C and 46 cSt. Spring Options:
Click here to change the graphOrdering code
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