Created on 11/27/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
RSFE
Air-controlled, pilot operated, balanced piston sequence valve
SERIES 2 / CAPACITY: 120 L/min. / CAVITY: T-2A
Air-controlled, pilot-operated, balanced piston sequence valves use compressed air over a diaphragm instead of an
adjustable spring to control the pressure setting of the valve. The air signal is supplied through a port in the hex-
end of the cartridge. They will supply a secondary circuit with flow once the pressure at the inlet (port 1) has
exceeded the valve setting. The pressure setting of a sequence valve controls the pressure at port 1 relative to the
pressure at the drain (port 3). These valves are insensitive to back pressure at port 2 (sequence), up to the valve
setting. They may be used to regulate pressure in place of 2-port relief valves if there is pressure in the return line.
TECHNICAL DATA
Pilot Ratio 20:1
Factory Pressure Settings Established at 15 L/min.
Maximum Operating Pressure 140 bar
Response Time - Typical 10 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 50 cc/min.
Maximum Air Pressure 10,5 bar
Seal kit - Cartridge Buna: 990-202-007
Seal kit - Cartridge Polyurethane: 990-002-002
Seal kit - Cartridge Viton: 990-202-006
(A)CONTROL
A External 1/4 NPTF Port
(B)ADJUSTMENT RANGE
B 50 - 1500 psi (3,5 - 105 bar)
(N)SEAL MATERIAL
N Buna-N
V Viton
snhy.com/RSFE
TECHNICAL FEATURES
All 3 port sequence cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).
Pilot flow continues to increase as the pressure at port 1 (inlet), relative to the pressure at port 3 (drain), rises above the valve setting.
Maximum air pilot pressure should not exceed 150 psi (10,5 bar).
Pressure at port 3 (drain) determines the minimum valve setting and should not exceed 1000 psi (70 bar).
Capable of providing explosion proof remote control of the pressure setting, the hydraulic setting is directly porportional to the air setting at a ratio of 20:1
(hydraulic:air).
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
Model Code Example: RSFEABNCONFIGURATION OPTIONS
Created on 11/27/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2
