Relief Valves
Symbol
Cross Section
Cavity Details
118
VH164
24,2
RVY0.S06 Valve Series
Hybrid SAE06 Cartridge - 350 bar
Direct acting - Poppet type
Technical Features
Description
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. Adjustment screw cannot be backed out of the valve. Po-
sitive stop prevents springs from going solid. Optional spring
ranges to 350 bar (5000 psi)
Hybrid SAE cavity.
A screw-in, cartridge style, direct acting, poppet type,
normally closed hydraulic relief valve. It’s typically
used to protect hydraulic components from pressure
transients. When the pressure at the Inlet (1) reaches
the valve setting, the valve starts to open to tank (2)
throttling flow to minimize the pressure rise. The inno-
vative geometry of the deflector provides in fact a very
low rise rate, and the poppet design guarantees great
stability. The cartridge offers quick response to load
changes in hydraulic circuits requiring low internal le-
akage as well as limited hysteresis. NOTE: the RVY0 in
the standard conguration can be used in crossover
relief applications.
Technical Data
119
Specications may change without notice.
Maximum operating pressure 350 bar
Maximum flow 15 l/min
Setting Pressure See table below
Maximum internal leakage 0,25 cm
3
/min to 80% of nominal set point
External component treatment
Zn/Fe - standard (96h)
Zn/Ni (720h)
O-ring Temperature Range -30° C to 110° C (standard sealing NBR - BUNA-N)
Oil Temperature Range -30° C to 110° C
Pressure settings established @5 l/min
Reseat pressure nominal 90% of cracking pressure
Fluids Mineral - based or synthetics with lubricating properties
Viscosities 7,4 to 420 cSt
Filtration 20/18/15 ISO 4406 (maximum ltration admitted)
Orientation No restrictions
Installation torque 25-30 Nm (Hex. 19)
Tightening torque nut 12-15 Nm (Hex. 17)
Technical specications for characterization See page 480
Oil testing condition ISO VG 46 cSt
Seal kit code SK.085
Weight 0,063 kg
Ordering Code
Design Note
The nose of the valve protrudes
by 1,5 mm into ID 10 mm of the
cavity.
Relief Valves
Springs’ Graphs
120
Spring = N (30 - 120bar)
1
p/Q performance
Flow (l/min)
Pressure (bar)
RVY0.S06 Valve Series
Note: The performance chart illustrates flow handling capacity for each
spring bias options. p/Q curves are recorded at TOil = 40°C and 46 cSt
p/Q performance
p/Q performance
121
Flow (l/min)
Flow (l/min)
Pressure (bar)
Pressure (bar)
Specications may change without notice.
Spring = G (201 - 350bar)
Spring = B (121 - 200bar)
2
3
