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PBBB

Pressure reducing valve from Sun Hydraulics

Description

Pilot-operated, pressure reducing valves reduce a high primary pressure at the inlet (port 2) to a constant reduced pressure at port 1, allowing circuits with multiple pressure requirements to be operated using a single pump.

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  • 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.
  • Minimum setting is 75 psi (5 bar) for all spring ranges.
  • Pilot operated valves exhibit exceptionally flat pressure/flow characteristics, are very stable and have low hysteresis.
  • Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
  • Recommended maximum inlet pressure is determined by the adjustment range. Ranges A, B, N, and Q are tested with a 3000 psi (210 bar) maximum differential between inlet and reduced pressure. Range W is tested with 5000 psi (350 bar) of inlet pressure.
  • 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-163A
Series 0
Capacity 5 gpm
Capacity (metric) 20 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 7 – 10 in³/min.
Control Pilot Flow (metric) 0,11 – 0,16 L/min.
Adjustment – No. of CW Turns from Min. to Max. setting 5
Valve Hex Size 3/4 in.
Valve Hex Size (metric) 19,1 mm
Valve Installation Torque 20 – 25 lbf ft
Valve Installation Torque (metric) 27 – 33 Nm
Adjustment Screw Internal Hex Size 5/32 in.
Adjustment Screw Internal Hex Size (metric) 4 mm
Locknut Hex Size 1/2 in.
Locknut Hex Size (metric) 12,7 mm
Locknut Torque 80 – 90 lbf in.
Locknut Torque (metric) 9 – 10 Nm
Model Weight 0.25 lb.
Model Weight (metric) 0.11 kg.
Seal kit – Cartridge Viton: 990163006

Configuration Options

Control

L ★ Standard Screw Adjustment
C Tamper Resistant – Factory Set
K Handknob
W Hex Wrench Adjustment

Adjustment Range

A ★ 75 – 3000 psi (5 – 210 bar), 200 psi (14 bar) Standard Setting
W ★ 75 – 4500 psi (5 – 315 bar), 200 psi (14 bar) Standard Setting
B 75 – 1500 psi (5 – 105 bar), 200 psi (14 bar) Standard Setting
N 75 – 800 psi (5 – 55 bar), 200 psi (14 bar) Standard Setting
Q 75 – 400 psi (5 – 28 bar), 200 psi (14 bar) Standard Setting

Seal Material

N ★ Buna-N
V Viton
E EPDM

Material/Coating

/AP Stainless Steel, Passivated
/LH Mild Steel, Zinc-Nickel
Cavity: T-163A
Nominal Capacity: 20 lpm (5 gpm)
Downloads
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Possible variants

PBBBCAE, PBBB-CAE, PBBBCAN, PBBB-CAN, PBBBCAN/AP, PBBB-CAN/AP, PBBBCAN/LH, PBBB-CAN/LH, PBBBCAV, PBBB-CAV, PBBBCAV/AP, PBBB-CAV/AP, PBBBCAV/LH, PBBB-CAV/LH, PBBBCBE, PBBB-CBE, PBBBCBN, PBBB-CBN, PBBBCBN/AP, PBBB-CBN/AP, PBBBCBN/LH, PBBB-CBN/LH, PBBBCBV, PBBB-CBV, PBBBCBV/AP, PBBB-CBV/AP, PBBBCBV/LH, PBBB-CBV/LH, PBBBCNE, PBBB-CNE, PBBBCNN, PBBB-CNN, PBBBCNN/AP, PBBB-CNN/AP, PBBBCNN/LH, PBBB-CNN/LH, PBBBCNV, PBBB-CNV, PBBBCNV/AP, PBBB-CNV/AP, PBBBCNV/LH, PBBB-CNV/LH, PBBBCQE, PBBB-CQE, PBBBCQN, PBBB-CQN, PBBBCQN/AP, PBBB-CQN/AP, PBBBCQN/LH, PBBB-CQN/LH, PBBBCQV, PBBB-CQV, PBBBCQV/AP, PBBB-CQV/AP, PBBBCQV/LH, PBBB-CQV/LH, PBBBCWE, PBBB-CWE, PBBBCWN, PBBB-CWN, PBBBCWN/AP, PBBB-CWN/AP, PBBBCWN/LH, PBBB-CWN/LH, PBBBCWV, PBBB-CWV, PBBBCWV/AP, PBBB-CWV/AP, PBBBCWV/LH, PBBB-CWV/LH, PBBBKAE, PBBB-KAE, PBBBKAN, PBBB-KAN, PBBBKAV, PBBB-KAV, PBBBKBE, PBBB-KBE, PBBBKBN, PBBB-KBN, PBBBKBV, PBBB-KBV, PBBBKNE, PBBB-KNE, PBBBKNN, PBBB-KNN, PBBBKNV, PBBB-KNV, PBBBKQE, PBBB-KQE, PBBBKQN, PBBB-KQN, PBBBKQV, PBBB-KQV, PBBBKWE, PBBB-KWE, PBBBKWN, PBBB-KWN, PBBBKWV, PBBB-KWV, PBBBLAE, PBBB-LAE, PBBBLAN, PBBB-LAN, PBBBLAN/AP, PBBB-LAN/AP, PBBBLAN/LH, PBBB-LAN/LH, PBBBLAV, PBBB-LAV, PBBBLAV/AP, PBBB-LAV/AP, PBBBLAV/LH, PBBB-LAV/LH, PBBBLBE, PBBB-LBE, PBBBLBN, PBBB-LBN, PBBBLBN/AP, PBBB-LBN/AP, PBBBLBN/LH, PBBB-LBN/LH, PBBBLBV, PBBB-LBV, PBBBLBV/AP, PBBB-LBV/AP, PBBBLBV/LH, PBBB-LBV/LH, PBBBLNE, PBBB-LNE, PBBBLNN, PBBB-LNN, PBBBLNN/AP, PBBB-LNN/AP, PBBBLNN/LH, PBBB-LNN/LH, PBBBLNV, PBBB-LNV, PBBBLNV/AP, PBBB-LNV/AP, PBBBLNV/LH, PBBB-LNV/LH, PBBBLQE, PBBB-LQE, PBBBLQN, PBBB-LQN, PBBBLQN/AP, PBBB-LQN/AP, PBBBLQN/LH, PBBB-LQN/LH, PBBBLQV, PBBB-LQV, PBBBLQV/AP, PBBB-LQV/AP, PBBBLQV/LH, PBBB-LQV/LH, PBBBLWE, PBBB-LWE, PBBBLWN, PBBB-LWN, PBBBLWN/AP, PBBB-LWN/AP, PBBBLWN/LH, PBBB-LWN/LH, PBBBLWV, PBBB-LWV, PBBBLWV/AP, PBBB-LWV/AP, PBBBLWV/LH, PBBB-LWV/LH, PBBBWAN, PBBB-WAN, PBBBWAV, PBBB-WAV, PBBBWBN, PBBB-WBN, PBBBWBV, PBBB-WBV, PBBBWNN, PBBB-WNN, PBBBWNV, PBBB-WNV, PBBBWQN, PBBB-WQN, PBBBWQV, PBBB-WQV, PBBBWWN, PBBB-WWN, PBBBWWV, PBBB-WWV