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PBHB

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.
  • If pilot flow consumption is critical, consider using direct acting reducing/relieving valves.
  • 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.
  • Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
  • Pilot operated reducing, reducing/relieving valves by nature are not fast acting valves. For superior dynamic response, consider direct acting valves.
  • W and Y controls (where applicable) can be specified with or without a special setting. When no special setting is specified, the valve is adjustable throughout its full range using the W or Y control. When a special setting is specified, this setting represents the maximum setting of the valve.
  • Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
  • 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.
  • 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-17A
Series 3
Capacity 40 gpm
Capacity (metric) 160 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 1/4 in.
Valve Hex Size (metric) 31,8 mm
Valve Installation Torque 150 – 160 lbf ft
Valve Installation Torque (metric) 203 – 217 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 1.26 lb.
Model Weight (metric) 0.57 kg.
Seal kit – Cartridge Viton: 990017006

Configuration Options

Control

L ★ Standard Screw Adjustment
C Tamper Resistant – Factory Set
K Handknob
W Hex Wrench Adjustment
Y Tri-Grip Handknob
M Capped Screw Adjustment with Lockwire Holes
Q Capped and Lockwired

Adjustment Range

A ★ 100 – 3000 psi (7 – 210 bar), 200 psi (14 bar) Standard Setting
W ★ 150 – 4500 psi (10,5 – 315 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
C 150 – 6000 psi (10,5 – 420 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

Seal Material

N ★ Buna-N
V Viton
E EPDM

Material/Coating

/AP Stainless Steel, Passivated
/LH Mild Steel, Zinc-Nickel
Cavity: T-17A
Nominal Capacity: 40 gpm (160 lpm)
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Possible variants

PBHB8DE, PBHB-8DE, PBHB8DN, PBHB-8DN, PBHB8DV, PBHB-8DV, PBHB8WE, PBHB-8WE, PBHB8WN, PBHB-8WN, PBHB8WV, PBHB-8WV, PBHBCAE, PBHB-CAE, PBHBCAE/AP, PBHB-CAE/AP, PBHBCAN, PBHB-CAN, PBHBCAN/AP, PBHB-CAN/AP, PBHBCAV, PBHB-CAV, PBHBCAV/AP, PBHB-CAV/AP, PBHBCBE, PBHB-CBE, PBHBCBE/AP, PBHB-CBE/AP, PBHBCBN, PBHB-CBN, PBHBCBN/AP, PBHB-CBN/AP, PBHBCBV, PBHB-CBV, PBHBCBV/AP, PBHB-CBV/AP, PBHBCCE, PBHB-CCE, PBHBCCE/AP, PBHB-CCE/AP, PBHBCCN, PBHB-CCN, PBHBCCN/AP, PBHB-CCN/AP, PBHBCCV, PBHB-CCV, PBHBCCV/AP, PBHB-CCV/AP, PBHBCDE, PBHB-CDE, PBHBCDE/AP, PBHB-CDE/AP, PBHBCDN, PBHB-CDN, PBHBCDN/AP, PBHB-CDN/AP, PBHBCDV, PBHB-CDV, PBHBCDV/AP, PBHB-CDV/AP, PBHBCEE, PBHB-CEE, PBHBCEE/AP, PBHB-CEE/AP, PBHBCEN, PBHB-CEN, PBHBCEN/AP, PBHB-CEN/AP, PBHBCEV, PBHB-CEV, PBHBCEV/AP, PBHB-CEV/AP, PBHBCHE, PBHB-CHE, PBHBCHE/AP, PBHB-CHE/AP, PBHBCHN, PBHB-CHN, PBHBCHN/AP, PBHB-CHN/AP, PBHBCHV, PBHB-CHV, PBHBCHV/AP, PBHB-CHV/AP, PBHBCNE, PBHB-CNE, PBHBCNE/AP, PBHB-CNE/AP, PBHBCNN, PBHB-CNN, PBHBCNN/AP, PBHB-CNN/AP, PBHBCNV, PBHB-CNV, PBHBCNV/AP, PBHB-CNV/AP, PBHBCQE, PBHB-CQE, PBHBCQE/AP, PBHB-CQE/AP, PBHBCQN, PBHB-CQN, PBHBCQN/AP, PBHB-CQN/AP, PBHBCQV, PBHB-CQV, PBHBCQV/AP, PBHB-CQV/AP, PBHBCWE, PBHB-CWE, PBHBCWE/AP, PBHB-CWE/AP, PBHBCWN, PBHB-CWN, PBHBCWN/AP, PBHB-CWN/AP, PBHBCWV, PBHB-CWV, PBHBCWV/AP, PBHB-CWV/AP, PBHBKAE, PBHB-KAE, PBHBKAN, PBHB-KAN, PBHBKAV, PBHB-KAV, PBHBKBE, PBHB-KBE, PBHBKBN, PBHB-KBN, PBHBKBV, PBHB-KBV, PBHBKCE, PBHB-KCE, PBHBKCN, PBHB-KCN, PBHBKCV, PBHB-KCV, PBHBKDE, PBHB-KDE, PBHBKDN, PBHB-KDN, PBHBKDV, PBHB-KDV, PBHBKEE, PBHB-KEE, PBHBKEN, PBHB-KEN, PBHBKEV, PBHB-KEV, PBHBKHE, PBHB-KHE, PBHBKHN, PBHB-KHN, PBHBKHV, PBHB-KHV, PBHBKNE, PBHB-KNE, PBHBKNN, PBHB-KNN, PBHBKNV, PBHB-KNV, PBHBKQE, PBHB-KQE, PBHBKQN, PBHB-KQN, PBHBKQV, PBHB-KQV, PBHBKWE, PBHB-KWE, PBHBKWN, PBHB-KWN, PBHBKWV, PBHB-KWV, PBHBLAE, PBHB-LAE, PBHBLAE/AP, PBHB-LAE/AP, PBHBLAN, PBHB-LAN, PBHBLAN/AP, PBHB-LAN/AP, PBHBLAN/LH, PBHB-LAN/LH, PBHBLAV, PBHB-LAV, PBHBLAV/AP, PBHB-LAV/AP, PBHBLAV/LH, PBHB-LAV/LH, PBHBLBE, PBHB-LBE, PBHBLBE/AP, PBHB-LBE/AP, PBHBLBN, PBHB-LBN, PBHBLBN/AP, PBHB-LBN/AP, PBHBLBN/LH, PBHB-LBN/LH, PBHBLBV, PBHB-LBV, PBHBLBV/AP, PBHB-LBV/AP, PBHBLBV/LH, PBHB-LBV/LH, PBHBLCE, PBHB-LCE, PBHBLCE/AP, PBHB-LCE/AP, PBHBLCN, PBHB-LCN, PBHBLCN/AP, PBHB-LCN/AP, PBHBLCN/LH, PBHB-LCN/LH, PBHBLCV, PBHB-LCV, PBHBLCV/AP, PBHB-LCV/AP, PBHBLCV/LH, PBHB-LCV/LH, PBHBLDE, PBHB-LDE, PBHBLDE/AP, PBHB-LDE/AP, PBHBLDN, PBHB-LDN, PBHBLDN/AP, PBHB-LDN/AP, PBHBLDN/LH, PBHB-LDN/LH, PBHBLDV, PBHB-LDV, PBHBLDV/AP, PBHB-LDV/AP, PBHBLDV/LH, PBHB-LDV/LH, PBHBLEE, PBHB-LEE, PBHBLEE/AP, PBHB-LEE/AP, PBHBLEN, PBHB-LEN, PBHBLEN/AP, PBHB-LEN/AP, PBHBLEN/LH, PBHB-LEN/LH, PBHBLEV, PBHB-LEV, PBHBLEV/AP, PBHB-LEV/AP, PBHBLEV/LH, PBHB-LEV/LH, PBHBLHE, PBHB-LHE, PBHBLHE/AP, PBHB-LHE/AP, PBHBLHN, PBHB-LHN, PBHBLHN/AP, PBHB-LHN/AP, PBHBLHN/LH, PBHB-LHN/LH, PBHBLHV, PBHB-LHV, PBHBLHV/AP, PBHB-LHV/AP, PBHBLHV/LH, PBHB-LHV/LH, PBHBLNE, PBHB-LNE, PBHBLNE/AP, PBHB-LNE/AP, PBHBLNN, PBHB-LNN, PBHBLNN/AP, PBHB-LNN/AP, PBHBLNN/LH, PBHB-LNN/LH, PBHBLNV, PBHB-LNV, PBHBLNV/AP, PBHB-LNV/AP, PBHBLNV/LH, PBHB-LNV/LH, PBHBLQE, PBHB-LQE, PBHBLQE/AP, PBHB-LQE/AP, PBHBLQN, PBHB-LQN, PBHBLQN/AP, PBHB-LQN/AP, PBHBLQN/LH, PBHB-LQN/LH, PBHBLQV, PBHB-LQV, PBHBLQV/AP, PBHB-LQV/AP, PBHBLQV/LH, PBHB-LQV/LH, PBHBLWE, PBHB-LWE, PBHBLWE/AP, PBHB-LWE/AP, PBHBLWN, PBHB-LWN, PBHBLWN/AP, PBHB-LWN/AP, PBHBLWN/LH, PBHB-LWN/LH, PBHBLWV, PBHB-LWV, PBHBLWV/AP, PBHB-LWV/AP, PBHBLWV/LH, PBHB-LWV/LH, PBHBMAE, PBHB-MAE, PBHBMAN, PBHB-MAN, PBHBMAV, PBHB-MAV, PBHBMBE, PBHB-MBE, PBHBMBN, PBHB-MBN, PBHBMBV, PBHB-MBV, PBHBMCE, PBHB-MCE, PBHBMCN, PBHB-MCN, PBHBMCV, PBHB-MCV, PBHBMDE, PBHB-MDE, PBHBMDN, PBHB-MDN, PBHBMDV, PBHB-MDV, PBHBMEE, PBHB-MEE, PBHBMEN, PBHB-MEN, PBHBMEV, PBHB-MEV, PBHBMHE, PBHB-MHE, PBHBMHN, PBHB-MHN, PBHBMHV, PBHB-MHV, PBHBMNE, PBHB-MNE, PBHBMNN, PBHB-MNN, PBHBMNV, PBHB-MNV, PBHBMQE, PBHB-MQE, PBHBMQN, PBHB-MQN, PBHBMQV, PBHB-MQV, PBHBMWE, PBHB-MWE, PBHBMWN, PBHB-MWN, PBHBMWV, PBHB-MWV, PBHBQAE, PBHB-QAE, PBHBQAN, PBHB-QAN, PBHBQAV, PBHB-QAV, PBHBQBE, PBHB-QBE, PBHBQBN, PBHB-QBN, PBHBQBV, PBHB-QBV, PBHBQCE, PBHB-QCE, PBHBQCN, PBHB-QCN, PBHBQCV, PBHB-QCV, PBHBQDE, PBHB-QDE, PBHBQDN, PBHB-QDN, PBHBQDV, PBHB-QDV, PBHBQEE, PBHB-QEE, PBHBQEN, PBHB-QEN, PBHBQEV, PBHB-QEV, PBHBQHE, PBHB-QHE, PBHBQHN, PBHB-QHN, PBHBQHV, PBHB-QHV, PBHBQNE, PBHB-QNE, PBHBQNN, PBHB-QNN, PBHBQNV, PBHB-QNV, PBHBQQE, PBHB-QQE, PBHBQQN, PBHB-QQN, PBHBQQV, PBHB-QQV, PBHBQWE, PBHB-QWE, PBHBQWN, PBHB-QWN, PBHBQWV, PBHB-QWV, PBHBWAE, PBHB-WAE, PBHBWAN, PBHB-WAN, PBHBWAV, PBHB-WAV, PBHBWBE, PBHB-WBE, PBHBWBN, PBHB-WBN, PBHBWBV, PBHB-WBV, PBHBWCE, PBHB-WCE, PBHBWCN, PBHB-WCN, PBHBWCV, PBHB-WCV, PBHBWDE, PBHB-WDE, PBHBWDN, PBHB-WDN, PBHBWDV, PBHB-WDV, PBHBWEE, PBHB-WEE, PBHBWEN, PBHB-WEN, PBHBWEV, PBHB-WEV, PBHBWHE, PBHB-WHE, PBHBWHN, PBHB-WHN, PBHBWHV, PBHB-WHV, PBHBWNE, PBHB-WNE, PBHBWNN, PBHB-WNN, PBHBWNV, PBHB-WNV, PBHBWQE, PBHB-WQE, PBHBWQN, PBHB-WQN, PBHBWQV, PBHB-WQV, PBHBWWE, PBHB-WWE, PBHBWWN, PBHB-WWN, PBHBWWV, PBHB-WWV, PBHBYAE, PBHB-YAE, PBHBYAN, PBHB-YAN, PBHBYAV, PBHB-YAV, PBHBYBE, PBHB-YBE, PBHBYBN, PBHB-YBN, PBHBYBV, PBHB-YBV, PBHBYCE, PBHB-YCE, PBHBYCN, PBHB-YCN, PBHBYCV, PBHB-YCV, PBHBYDE, PBHB-YDE, PBHBYDN, PBHB-YDN, PBHBYDV, PBHB-YDV, PBHBYEE, PBHB-YEE, PBHBYEN, PBHB-YEN, PBHBYEV, PBHB-YEV, PBHBYHE, PBHB-YHE, PBHBYHN, PBHB-YHN, PBHBYHV, PBHB-YHV, PBHBYNE, PBHB-YNE, PBHBYNN, PBHB-YNN, PBHBYNV, PBHB-YNV, PBHBYQE, PBHB-YQE, PBHBYQN, PBHB-YQN, PBHBYQV, PBHB-YQV, PBHBYWE, PBHB-YWE, PBHBYWN, PBHB-YWN, PBHBYWV, PBHB-YWV

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