Relief Valves
Symbol
Cross Section
130
RVC0.S10 Valve Series
SAE10 Cartridge - 350 bar
Direct acting - Poppet type
Technical Features
Description
All external surfaces are zinc plated and corrosion-proof. All val-
ve 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. Positive
stop prevents springs from going solid. Optional spring ranges to
350 bar (5000 psi). Industry common 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 star-
ts to open to tank (2) throttling flow to minimize
the pressure rise. The innovative 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 leakage as
well as limited hysteresis. NOTE: the RVC0 in the
relief applications.
SAE10
Cavity Details
Technical Data
131
Maximum operating pressure 350 bar
Maximum flow 50 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
Orientation No restrictions
Installation torque 55-65 Nm (Hex. 24)
Tightening torque nut 25-30 Nm (Hex. 19)
See page 480
Oil testing condition ISO VG 46 cSt
Seal kit code SK.001
Plastic tamper proof cap CTP.001 (for more details see page 428-429)
Weight 0,170 kg
The nose of the valve protrudes
by 3,7 mm into ID 12 mm
of the cavity.
Ordering Code
Design Note
Relief Valves
Springs’ Graphs
1
2
p/Q performance
p/Q performance
132
Flow (l/min)
Flow (l/min)
Pressure (bar)
Pressure (bar)
Spring = N (25 - 135bar)
Spring = Y (15 - 60bar)
RVC0.S10 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
3
4
133
Flow (l/min)
Flow (l/min)
Pressure (bar)
Pressure (bar)
Spring = G (120 - 350bar)
Spring = B (50 - 220bar)
