Created on 06/30/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
RVIS
Ventable, pilot operated, balanced poppet relief valve
SERIES 4 / CAPACITY: 480 L/min. / CAVITY: T-19A
Ventable, pilot-operated, balanced-poppet 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 0,25 - 0,33 L/min.
Response Time - Typical 2 ms
Maximum Valve Leakage at Reseat 0,7 cc/min.
Adjustment - Number of Clockwise Turns to Increase Setting 5
Locknut Hex Size 15 mm
Locknut Torque 9 - 10 Nm
Seal kit - Cartridge Buna: 990-219-007
Seal kit - Cartridge Viton: 990-219-006
(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
N 60 - 800 psi (4 - 55 bar), 400 psi (28 bar)
Standard Setting
Q 60 - 400 psi (4 - 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/
RVIS
TECHNICAL FEATURES
Because the modulating occurs inside the cartridge, these valves are immune to most of the problems associated with cavitation, namely noise and manifold
erosion.
Suitable for use in load holding applications, providing that any valving on the vent port (port 3) is zero leak.
Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
Model Code Example: RVISLANCONFIGURATION OPTIONS
Created on 06/30/2015
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.
Valve is relatively insensitive to varying oil temperatures and oil borne contamination.
Main stage orifice is protected by a 150 micron stainless steel screen.
Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
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
