MODEL
RPKC
Pilot operated, balanced piston relief valve
SERIES 4 / CAPACITY: 760 L/min. / CAVITY: T-18A
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. 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
Response Time - Typical 10 ms
Maximum Valve Leakage at 110 SUS (24 cSt) 80 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: 990-018-007
Seal kit - Cartridge Polyurethane: 990-018-002
Seal kit - Cartridge Viton: 990-018-006
(L)CONTROL
L Standard Screw Adjustment
C Tamper Resistant - Factory Set
K Handknob
W Hex Wrench Adjustment
Y Tri-Grip Handknob
(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 60 - 800 psi (4 - 55 bar), 400 psi (28 bar)
Standard Setting
(N)SEAL MATERIAL
N Buna-N
E EPDM
V Viton
MATERIAL/COATING
Standard Material/Coating
/AP Stainless Steel, Passivated
snhy.com/RPKC
Model Code Example: RPKCLANCONFIGURATION OPTIONS