Created on 11/27/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
RVGD
Ventable, pilot operated, balanced piston relief valve with drain to port 4
SERIES 3 / CAPACITY: 240 L/min. / CAVITY: T-23A
Ventable, pilot-operated, balanced piston relief cartridges with external drain 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 and a drain (port 4) that makes
them insensitive to back pressure. 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 0,25 - 0,33 L/min.
Response Time - Typical 10 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 65 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: 990-023-007
Seal kit - Cartridge Polyurethane: 990-023-002
Seal kit - Cartridge Viton: 990-023-006
(L)CONTROL
L Standard Screw Adjustment
C Tamper Resistant - Factory Set
K Handknob
(A)ADJUSTMENT RANGE
A 100 - 3000 psi (7 - 210 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
W 150 - 4500 psi (10,5 - 315 bar), 1000
psi (70 bar) Standard Setting
(N)SEAL MATERIAL
N Buna-N
V Viton
MATERIAL/COATING
Standard Material/Coating
/AP Stainless Steel, Passivated
snhy.com/RVGD
Model Code Example: RVGDLANCONFIGURATION OPTIONS
Created on 11/27/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2
psi (70 bar) Standard Setting
TECHNICAL FEATURES
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.
Pressure at port 4 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
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 MODELS
RVGD8 Ventable, pilot operated, balanced piston relief main stage with integral T-8A control cavity and drain to port 4
