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PBDB

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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  • 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.
  • 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.
  • Main stage orifice is protected by a 150 micron stainless steel screen.
  • 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.
  • Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP for external stainless steel components, or /LH for external zinc-nickel plated components. See the CONFIGURATION section for all options. For further details, please see the Materials of Construction page located under TECH RESOURCES.
  • 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-11A
Series 1
Capacity 10 gpm
Capacity (metric) 40 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 7/8 in.
Valve Hex Size (metric) 22,2 mm
Valve Installation Torque 30 – 35 lbf ft
Valve Installation Torque (metric) 41 – 47 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 0.35 lb.
Model Weight (metric) 0.16 kg.
Seal kit – Cartridge Viton: 990011006

Configuration Options

Control

L ★ Standard Screw Adjustment
C Tamper Resistant – Factory Set
K Handknob
W Hex Wrench Adjustment
Y Tri-Grip Handknob
F Hex Head Screw with Locknut
J Capped Screw Adjustment
M Capped Screw Adjustment with Lockwire Holes
O Handknob with Panel Mount
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
G 60 – 3000 psi (4 – 210 bar), 200 psi (14 bar) Standard Setting
K 75 – 1500 psi (5 – 105 bar), 200 psi (14 bar) Standard Setting
P 40 – 400 psi (2,8 – 28 bar), 200 psi (14 bar) Standard Setting

Seal Material

N ★ Buna-N
V Viton

Material/Coating

/AP Stainless Steel, Passivated
/LH Mild Steel, Zinc-Nickel
Cavity: T-11A
Nominal Capacity: 40 lpm (10 gpm)
Downloads
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Possible variants

PBDB8DN, PBDB-8DN, PBDB8DN/AP, PBDB-8DN/AP, PBDB8DV, PBDB-8DV, PBDB8DV/AP, PBDB-8DV/AP, PBDB8WN, PBDB-8WN, PBDB8WN/AP, PBDB-8WN/AP, PBDB8WV, PBDB-8WV, PBDB8WV/AP, PBDB-8WV/AP, PBDBCAN, PBDB-CAN, PBDBCAN/AP, PBDB-CAN/AP, PBDBCAN/LH, PBDB-CAN/LH, PBDBCAV, PBDB-CAV, PBDBCAV/AP, PBDB-CAV/AP, PBDBCAV/LH, PBDB-CAV/LH, PBDBCBN, PBDB-CBN, PBDBCBN/AP, PBDB-CBN/AP, PBDBCBN/LH, PBDB-CBN/LH, PBDBCBV, PBDB-CBV, PBDBCBV/AP, PBDB-CBV/AP, PBDBCBV/LH, PBDB-CBV/LH, PBDBCCN, PBDB-CCN, PBDBCCN/AP, PBDB-CCN/AP, PBDBCCN/LH, PBDB-CCN/LH, PBDBCCV, PBDB-CCV, PBDBCCV/AP, PBDB-CCV/AP, PBDBCCV/LH, PBDB-CCV/LH, PBDBCDN, PBDB-CDN, PBDBCDN/AP, PBDB-CDN/AP, PBDBCDN/LH, PBDB-CDN/LH, PBDBCDV, PBDB-CDV, PBDBCDV/AP, PBDB-CDV/AP, PBDBCDV/LH, PBDB-CDV/LH, PBDBCEN, PBDB-CEN, PBDBCEN/AP, PBDB-CEN/AP, PBDBCEN/LH, PBDB-CEN/LH, PBDBCEV, PBDB-CEV, PBDBCEV/AP, PBDB-CEV/AP, PBDBCEV/LH, PBDB-CEV/LH, PBDBCGN, PBDB-CGN, PBDBCGN/AP, PBDB-CGN/AP, PBDBCGN/LH, PBDB-CGN/LH, PBDBCGV, PBDB-CGV, PBDBCGV/AP, PBDB-CGV/AP, PBDBCGV/LH, PBDB-CGV/LH, PBDBCKN, PBDB-CKN, PBDBCKN/AP, PBDB-CKN/AP, PBDBCKN/LH, PBDB-CKN/LH, PBDBCKV, PBDB-CKV, PBDBCKV/AP, PBDB-CKV/AP, PBDBCKV/LH, PBDB-CKV/LH, PBDBCNN, PBDB-CNN, PBDBCNN/AP, PBDB-CNN/AP, PBDBCNN/LH, PBDB-CNN/LH, PBDBCNV, PBDB-CNV, PBDBCNV/AP, PBDB-CNV/AP, PBDBCNV/LH, PBDB-CNV/LH, PBDBCPN, PBDB-CPN, PBDBCPN/AP, PBDB-CPN/AP, PBDBCPN/LH, PBDB-CPN/LH, PBDBCPV, PBDB-CPV, PBDBCPV/AP, PBDB-CPV/AP, PBDBCPV/LH, PBDB-CPV/LH, PBDBCQN, PBDB-CQN, PBDBCQN/AP, PBDB-CQN/AP, PBDBCQN/LH, PBDB-CQN/LH, PBDBCQV, PBDB-CQV, PBDBCQV/AP, PBDB-CQV/AP, PBDBCQV/LH, PBDB-CQV/LH, PBDBCWN, PBDB-CWN, PBDBCWN/AP, PBDB-CWN/AP, PBDBCWN/LH, PBDB-CWN/LH, PBDBCWV, PBDB-CWV, PBDBCWV/AP, PBDB-CWV/AP, PBDBCWV/LH, PBDB-CWV/LH, PBDBFAN, PBDB-FAN, PBDBFAV, PBDB-FAV, PBDBFBN, PBDB-FBN, PBDBFBV, PBDB-FBV, PBDBFCN, PBDB-FCN, PBDBFCV, PBDB-FCV, PBDBFDN, PBDB-FDN, PBDBFDV, PBDB-FDV, PBDBFEN, PBDB-FEN, PBDBFEV, PBDB-FEV, PBDBFGN, PBDB-FGN, PBDBFGV, PBDB-FGV, PBDBFKN, PBDB-FKN, PBDBFKV, PBDB-FKV, PBDBFNN, PBDB-FNN, PBDBFNV, PBDB-FNV, PBDBFPN, PBDB-FPN, PBDBFPV, PBDB-FPV, PBDBFQN, PBDB-FQN, PBDBFQV, PBDB-FQV, PBDBFWN, PBDB-FWN, PBDBFWV, PBDB-FWV, PBDBJAN, PBDB-JAN, PBDBJAV, PBDB-JAV, PBDBJBN, PBDB-JBN, PBDBJBV, PBDB-JBV, PBDBJCN, PBDB-JCN, PBDBJCV, PBDB-JCV, PBDBJDN, PBDB-JDN, PBDBJDV, PBDB-JDV, PBDBJEN, PBDB-JEN, PBDBJEV, PBDB-JEV, PBDBJGN, PBDB-JGN, PBDBJGV, PBDB-JGV, PBDBJKN, PBDB-JKN, PBDBJKV, PBDB-JKV, PBDBJNN, PBDB-JNN, PBDBJNV, PBDB-JNV, PBDBJPN, PBDB-JPN, PBDBJPV, PBDB-JPV, PBDBJQN, PBDB-JQN, PBDBJQV, PBDB-JQV, PBDBJWN, PBDB-JWN, PBDBJWV, PBDB-JWV, PBDBKAN, PBDB-KAN, PBDBKAV, PBDB-KAV, PBDBKBN, PBDB-KBN, PBDBKBV, PBDB-KBV, PBDBKCN, PBDB-KCN, PBDBKCV, PBDB-KCV, PBDBKDN, PBDB-KDN, PBDBKDV, PBDB-KDV, PBDBKEN, PBDB-KEN, PBDBKEV, PBDB-KEV, PBDBKGN, PBDB-KGN, PBDBKGV, PBDB-KGV, PBDBKKN, PBDB-KKN, PBDBKKV, PBDB-KKV, PBDBKNN, PBDB-KNN, PBDBKNV, PBDB-KNV, PBDBKPN, PBDB-KPN, PBDBKPV, PBDB-KPV, PBDBKQN, PBDB-KQN, PBDBKQV, PBDB-KQV, PBDBKWN, PBDB-KWN, PBDBKWV, PBDB-KWV, PBDBLAN, PBDB-LAN, PBDBLAN/AP, PBDB-LAN/AP, PBDBLAN/LH, PBDB-LAN/LH, PBDBLAV, PBDB-LAV, PBDBLAV/LH, PBDB-LAV/LH, PBDBLBN, PBDB-LBN, PBDBLBN/AP, PBDB-LBN/AP, PBDBLBN/LH, PBDB-LBN/LH, PBDBLBV, PBDB-LBV, PBDBLBV/AP, PBDB-LBV/AP, PBDBLBV/LH, PBDB-LBV/LH, PBDBLCN, PBDB-LCN, PBDBLCN/AP, PBDB-LCN/AP, PBDBLCN/LH, PBDB-LCN/LH, PBDBLCV, PBDB-LCV, PBDBLCV/AP, PBDB-LCV/AP, PBDBLCV/LH, PBDB-LCV/LH, PBDBLDN, PBDB-LDN, PBDBLDN/AP, PBDB-LDN/AP, PBDBLDN/LH, PBDB-LDN/LH, PBDBLDV, PBDB-LDV, PBDBLDV/AP, PBDB-LDV/AP, PBDBLDV/LH, PBDB-LDV/LH, PBDBLEN, PBDB-LEN, PBDBLEN/AP, PBDB-LEN/AP, PBDBLEN/LH, PBDB-LEN/LH, PBDBLEV, PBDB-LEV, PBDBLEV/AP, PBDB-LEV/AP, PBDBLEV/LH, PBDB-LEV/LH, PBDBLGN, PBDB-LGN, PBDBLGN/AP, PBDB-LGN/AP, PBDBLGN/LH, PBDB-LGN/LH, PBDBLGV, PBDB-LGV, PBDBLGV/AP, PBDB-LGV/AP, PBDBLGV/LH, PBDB-LGV/LH, PBDBLKN, PBDB-LKN, PBDBLKN/AP, PBDB-LKN/AP, PBDBLKN/LH, PBDB-LKN/LH, PBDBLKV, PBDB-LKV, PBDBLKV/AP, PBDB-LKV/AP, PBDBLKV/LH, PBDB-LKV/LH, PBDBLNN, PBDB-LNN, PBDBLNN/AP, PBDB-LNN/AP, PBDBLNN/LH, PBDB-LNN/LH, PBDBLNV, PBDB-LNV, PBDBLNV/AP, PBDB-LNV/AP, PBDBLNV/LH, PBDB-LNV/LH, PBDBLPN, PBDB-LPN, PBDBLPN/AP, PBDB-LPN/AP, PBDBLPN/LH, PBDB-LPN/LH, PBDBLPV, PBDB-LPV, PBDBLPV/AP, PBDB-LPV/AP, PBDBLPV/LH, PBDB-LPV/LH, PBDBLQN, PBDB-LQN, PBDBLQN/AP, PBDB-LQN/AP, PBDBLQN/LH, PBDB-LQN/LH, PBDBLQV, PBDB-LQV, PBDBLQV/AP, PBDB-LQV/AP, PBDBLQV/LH, PBDB-LQV/LH, PBDBLWN, PBDB-LWN, PBDBLWN/AP, PBDB-LWN/AP, PBDBLWN/LH, PBDB-LWN/LH, PBDBLWV, PBDB-LWV, PBDBLWV/AP, PBDB-LWV/AP, PBDBLWV/LH, PBDB-LWV/LH, PBDBMAN, PBDB-MAN, PBDBMAV, PBDB-MAV, PBDBMBN, PBDB-MBN, PBDBMBV, PBDB-MBV, PBDBMCN, PBDB-MCN, PBDBMCV, PBDB-MCV, PBDBMDN, PBDB-MDN, PBDBMDV, PBDB-MDV, PBDBMEN, PBDB-MEN, PBDBMEV, PBDB-MEV, PBDBMGN, PBDB-MGN, PBDBMGV, PBDB-MGV, PBDBMKN, PBDB-MKN, PBDBMKV, PBDB-MKV, PBDBMNN, PBDB-MNN, PBDBMNV, PBDB-MNV, PBDBMPN, PBDB-MPN, PBDBMPV, PBDB-MPV, PBDBMQN, PBDB-MQN, PBDBMQV, PBDB-MQV, PBDBMWN, PBDB-MWN, PBDBMWV, PBDB-MWV, PBDBOAN, PBDB-OAN, PBDBOAV, PBDB-OAV, PBDBOBN, PBDB-OBN, PBDBOBV, PBDB-OBV, PBDBOCN, PBDB-OCN, PBDBOCV, PBDB-OCV, PBDBODN, PBDB-ODN, PBDBODV, PBDB-ODV, PBDBOEN, PBDB-OEN, PBDBOEV, PBDB-OEV, PBDBOGN, PBDB-OGN, PBDBOGV, PBDB-OGV, PBDBOKN, PBDB-OKN, PBDBOKV, PBDB-OKV, PBDBONN, PBDB-ONN, PBDBONV, PBDB-ONV, PBDBOPN, PBDB-OPN, PBDBOPV, PBDB-OPV, PBDBOQN, PBDB-OQN, PBDBOQV, PBDB-OQV, PBDBOWN, PBDB-OWN, PBDBOWV, PBDB-OWV, PBDBQAN, PBDB-QAN, PBDBQAV, PBDB-QAV, PBDBQBN, PBDB-QBN, PBDBQBV, PBDB-QBV, PBDBQCN, PBDB-QCN, PBDBQCV, PBDB-QCV, PBDBQDN, PBDB-QDN, PBDBQDV, PBDB-QDV, PBDBQEN, PBDB-QEN, PBDBQEV, PBDB-QEV, PBDBQGN, PBDB-QGN, PBDBQGV, PBDB-QGV, PBDBQKN, PBDB-QKN, PBDBQKV, PBDB-QKV, PBDBQNN, PBDB-QNN, PBDBQNV, PBDB-QNV, PBDBQPN, PBDB-QPN, PBDBQPV, PBDB-QPV, PBDBQQN, PBDB-QQN, PBDBQQV, PBDB-QQV, PBDBQWN, PBDB-QWN, PBDBQWV, PBDB-QWV, PBDBWAN, PBDB-WAN, PBDBWAV, PBDB-WAV, PBDBWBN, PBDB-WBN, PBDBWBV, PBDB-WBV, PBDBWCN, PBDB-WCN, PBDBWCV, PBDB-WCV, PBDBWDN, PBDB-WDN, PBDBWDV, PBDB-WDV, PBDBWEN, PBDB-WEN, PBDBWEV, PBDB-WEV, PBDBWGN, PBDB-WGN, PBDBWGV, PBDB-WGV, PBDBWKN, PBDB-WKN, PBDBWKV, PBDB-WKV, PBDBWNN, PBDB-WNN, PBDBWNV, PBDB-WNV, PBDBWPN, PBDB-WPN, PBDBWPV, PBDB-WPV, PBDBWQN, PBDB-WQN, PBDBWQV, PBDB-WQV, PBDBWWN, PBDB-WWN, PBDBWWV, PBDB-WWV, PBDBYAN, PBDB-YAN, PBDBYAN/AP, PBDB-YAN/AP, PBDBYAV, PBDB-YAV, PBDBYAV/AP, PBDB-YAV/AP, PBDBYBN, PBDB-YBN, PBDBYBN/AP, PBDB-YBN/AP, PBDBYBV, PBDB-YBV, PBDBYBV/AP, PBDB-YBV/AP, PBDBYCN, PBDB-YCN, PBDBYCN/AP, PBDB-YCN/AP, PBDBYCV, PBDB-YCV, PBDBYCV/AP, PBDB-YCV/AP, PBDBYDN, PBDB-YDN, PBDBYDN/AP, PBDB-YDN/AP, PBDBYDV, PBDB-YDV, PBDBYDV/AP, PBDB-YDV/AP, PBDBYEN, PBDB-YEN, PBDBYEN/AP, PBDB-YEN/AP, PBDBYEV, PBDB-YEV, PBDBYEV/AP, PBDB-YEV/AP, PBDBYGN, PBDB-YGN, PBDBYGN/AP, PBDB-YGN/AP, PBDBYGV, PBDB-YGV, PBDBYGV/AP, PBDB-YGV/AP, PBDBYKN, PBDB-YKN, PBDBYKN/AP, PBDB-YKN/AP, PBDBYKV, PBDB-YKV, PBDBYKV/AP, PBDB-YKV/AP, PBDBYNN, PBDB-YNN, PBDBYNN/AP, PBDB-YNN/AP, PBDBYNV, PBDB-YNV, PBDBYNV/AP, PBDB-YNV/AP, PBDBYPN, PBDB-YPN, PBDBYPN/AP, PBDB-YPN/AP, PBDBYPV, PBDB-YPV, PBDBYPV/AP, PBDB-YPV/AP, PBDBYQN, PBDB-YQN, PBDBYQN/AP, PBDB-YQN/AP, PBDBYQV, PBDB-YQV, PBDBYQV/AP, PBDB-YQV/AP, PBDBYWN, PBDB-YWN, PBDBYWN/AP, PBDB-YWN/AP, PBDBYWV, PBDB-YWV, PBDBYWV/AP, PBDB-YWV/AP

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