MODEL
PVHA
Pilot operated, pressure reducing/relieving valve with drain to port 4
SERIES 3 / CAPACITY: 160 L/min. / CAVITY: T-23A
Externally drained, pilot-operated pressure reducing/relieving valves reduce a high primary pressure at the inlet
(port 2) to a constant reduced pressure at port 1, with a full-flow relief function from port 1 to tank (port 3). Draining
the pilot section at port 4 makes these valves insensitive to pressure at tank (port 3) and provides a means for
remote control by pilot or 2-way valves.
TECHNICAL DATA
Factory Pressure Settings Established at blocked control port (dead headed)
Maximum Operating Pressure 350 bar
Control Pilot Flow 0,25 - 0,33 L/min.
Adjustment - Number of Clockwise Turns to Increase Setting 5
Locknut Hex Size 15 mm
Locknut Torque 9 - 10 Nm
Seal kit - Cartridge Buna: 990-023-007
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), 200 psi (14
bar) Standard Setting
B 50 - 1500 psi (3,5 - 105 bar), 200 psi
(14 bar) Standard Setting
D 25 - 800 psi (1,7 - 55 bar), 200 psi (14
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), 200 psi
(14 bar) Standard Setting
(N)SEAL MATERIAL
N Buna-N
V Viton
MATERIAL/COATING
Standard Material/Coating
/AP Stainless Steel, Passivated
snhy.com/PVHA
TECHNICAL FEATURES
Maximum pressure at port 3 should be limited to 3000 psi (210 bar).
Maximum pressure differentials for spring ranges: A and B are 3000 psi (210 bar) D and E are 2000 psi (140 bar) W is 5000 psi (350 bar) inlet pressure
NOTES
Model Code Example: PVHALANCONFIGURATION OPTIONS