Created on 06/18/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
RVCA
Ventable, pilot operated, balanced piston relief valve
SERIES 1 / CAPACITY: 60 L/min. / CAVITY: T-11A
Ventable, pilot-operated, balanced piston relief cartridges are normally closed pressure regulating valves. When the
pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to
regulate the pressure. They provide a vent port (port 3) that connects between the main piston and pilot stage to
provide for remote control by other pilot or 2-way valves. These valves are accurate, have low pressure rise vs.
flow, they are smooth and quiet, and are moderately fast.
TECHNICAL DATA
Factory Pressure Settings Established at 15 L/min.
Maximum Operating Pressure 350 bar
Control Pilot Flow 0,11 - 0,16 L/min.
Response Time - Typical 10 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 30 cc/min.@70 bar
Adjustment - Number of Clockwise Turns to Increase Setting 5
Locknut Hex Size 15 mm
Locknut Torque 9 - 10 Nm
Seal kit - Cartridge Buna: 990-011-007
Seal kit - Cartridge Polyurethane: 990-011-002
Seal kit - Cartridge Viton: 990-011-006
(L)CONTROL
L Standard Screw Adjustment
C Tamper Resistant - Factory Set
K Handknob
O Handknob with Panel Mount
(A)ADJUSTMENT RANGE
A 100 - 3000 psi (7 - 210 bar), 1000 psi (70
bar) Standard Setting
W 150 - 4500 psi (10,5 - 315 bar), 1000 psi
(70 bar) Standard Setting
B 50 - 1500 psi (3,5 - 105 bar), 1000 psi (70
bar) Standard Setting
C 150 - 6000 psi (10,5 - 420 bar), 1000 psi
(70 bar) Standard Setting
D 25 - 800 psi (1,7 - 55 bar), 400 psi (28
bar) Standard Setting
E 25 - 400 psi (1,7 - 28 bar), 200 psi (14
bar) Standard Setting
(N)SEAL MATERIAL
N Buna-N
E EPDM
V Viton
MATERIAL/COATING
Standard Material/Coating
/AP Stainless Steel, Passivated
/LH Mild Steel, Zinc-Nickel
snhy.com/
RVCA
TECHNICAL FEATURES
For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.
NOTES
Model Code Example: RVCALANCONFIGURATION OPTIONS
Created on 06/18/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2
A remote pilot relief on port 3 (vent) will control the valve below its own setting.
Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.
Main stage orifice is protected by a 150 micron stainless steel screen.
Not suitable for use in load holding applications due to spool leakage.
Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge
machining variations.
PERFORMANCE CURVES
RELATED ACCESSORIES
XRCL Solenoid operated cross port relief assembly
XRCM Solenoid operated ventable relief assembly
XRCX Solenoid operated ventable relief assembly
XROK Solenoid operated ventable relief assembly
