MODEL
PPFF
Pilot operated, pressure reducing/relieving valve with drilled piston orifice
SERIES 2 / CAPACITY: 80 L/min. / CAVITY: T-2A
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).
TECHNICAL DATA
Factory Pressure Settings Established at blocked control port (dead headed)
Maximum Operating Pressure 350 bar
Control Pilot Flow 0,16 - 0,25 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: 990-202-007
Seal kit - Cartridge Polyurethane: 990-002-002
Seal kit - Cartridge Viton: 990-202-006
(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
N 60 - 800 psi (4 - 55 bar), 200 psi (14
bar) Standard Setting
Q 60 - 400 psi (4 - 28 bar), 200 psi (14
bar) Standard Setting
W 100 - 5000 psi , 200 psi (14 bar)
Standard Setting
(N)SEAL MATERIAL
N Buna-N
V Viton
snhy.com/PPFF
TECHNICAL FEATURES
These valves have the main stage orifice drilled into the piston rather than a staked-in orifice. This allows the valve to survive physically demanding applications.
Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 3000 psi (210 bar).
Maximum pressure at port 3 should be limited to 3000 psi (210 bar).
Recommended maximum inlet pressure is determined by the adjustment range. Ranges D, E, N, and Q are tested with a 2000 psi (140 bar) maximum differential
between inlet and reduced pressure. Ranges A, B, and H are tested with a 3000 psi (210 bar) maximum differential between inlet and reduced pressure. Ranges C
For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.
NOTES
Model Code Example: PPFFLANCONFIGURATION OPTIONS