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PPJF

Pressure reducing/relieving valve from Sun Hydraulics

Description

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).

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  • 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 and W are tested with 5000 psi (350 bar) of inlet pressure.
  • Pilot operated valves exhibit exceptionally flat pressure/flow characteristics, are very stable and have low hysteresis.
  • Full reverse flow from reduced pressure (port 1) to inlet (port 2) may cause the main spool to close. If reverse free flow is required in the circuit, consider adding a separate check valve to the circuit.
  • If pilot flow consumption is critical, consider using direct acting reducing/relieving valves.
  • All three-port pressure reducing and reducing/relieving cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size). When considering mounting configurations, it is sometimes recommended that a full capacity return line (port 3) be used with reducing/relieving cartridges.
  • Pilot operated reducing, reducing/relieving valves by nature are not fast acting valves. For superior dynamic response, consider direct acting valves.
  • 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.

Technical Data

Note: Data may vary by configuration. See CONFIGURATION section.

Cavity T-19A
Series 4
Capacity 80 gpm
Capacity (metric) 320 L/min.
Maximum Operating Pressure 5000 psi
Maximum Operating Pressure (metric) 350 bar
Factory Pressure Settings Established at blocked control port (dead headed)
Control Pilot Flow 15 – 20 in³/min.
Control Pilot Flow (metric) 0,25 – 0,33 L/min.
Adjustment – No. of CW Turns from Min. to Max. setting 5
Valve Hex Size 1 5/8 in.
Valve Hex Size (metric) 41,3 mm
Valve Installation Torque 350 – 375 lbf ft
Valve Installation Torque (metric) 474 – 508 Nm
Adjustment Screw Internal Hex Size 5/32 in.
Adjustment Screw Internal Hex Size (metric) 4 mm
Locknut Hex Size 9/16 in.
Locknut Hex Size (metric) 15 mm
Locknut Torque 80 – 90 lbf in.
Locknut Torque (metric) 9 – 10 Nm
Model Weight 2.85 lb.
Model Weight (metric) 1.29 kg.
Seal kit – Cartridge Viton: 990019006

Configuration Options

Control

C Tamper Resistant – Factory Set
K Handknob
L Standard Screw Adjustment

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
H 30 – 3000 psi (2 – 210 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 150 – 4500 psi (10,5 – 315 bar), 200 psi (14 bar) Standard Setting

Seal Material

N Buna-N
V Viton
Cavity: T-19A
Nominal Capacity: 320 lpm (80 gpm)
Downloads
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Possible variants

PPJF8DN, PPJF-8DN, PPJF8DV, PPJF-8DV, PPJF8WN, PPJF-8WN, PPJF8WV, PPJF-8WV, PPJFCAN, PPJF-CAN, PPJFCAV, PPJF-CAV, PPJFCBN, PPJF-CBN, PPJFCBV, PPJF-CBV, PPJFCDN, PPJF-CDN, PPJFCDV, PPJF-CDV, PPJFCEN, PPJF-CEN, PPJFCEV, PPJF-CEV, PPJFCHN, PPJF-CHN, PPJFCHV, PPJF-CHV, PPJFCNN, PPJF-CNN, PPJFCNV, PPJF-CNV, PPJFCQN, PPJF-CQN, PPJFCQV, PPJF-CQV, PPJFCWN, PPJF-CWN, PPJFCWV, PPJF-CWV, PPJFKAN, PPJF-KAN, PPJFKAV, PPJF-KAV, PPJFKBN, PPJF-KBN, PPJFKBV, PPJF-KBV, PPJFKDN, PPJF-KDN, PPJFKDV, PPJF-KDV, PPJFKEN, PPJF-KEN, PPJFKEV, PPJF-KEV, PPJFKHN, PPJF-KHN, PPJFKHV, PPJF-KHV, PPJFKNN, PPJF-KNN, PPJFKNV, PPJF-KNV, PPJFKQN, PPJF-KQN, PPJFKQV, PPJF-KQV, PPJFKWN, PPJF-KWN, PPJFKWV, PPJF-KWV, PPJFLAN, PPJF-LAN, PPJFLAV, PPJF-LAV, PPJFLBN, PPJF-LBN, PPJFLBV, PPJF-LBV, PPJFLDN, PPJF-LDN, PPJFLDV, PPJF-LDV, PPJFLEN, PPJF-LEN, PPJFLEV, PPJF-LEV, PPJFLHN, PPJF-LHN, PPJFLHV, PPJF-LHV, PPJFLNN, PPJF-LNN, PPJFLNV, PPJF-LNV, PPJFLQN, PPJF-LQN, PPJFLQV, PPJF-LQV, PPJFLWN, PPJF-LWN, PPJFLWV, PPJF-LWV

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