Hydnet - the specialist in intelligent hydraulic systems
Contact
PVHB

Pressure reducing/relieving valve from Sun Hydraulics

Description

Ventable, pilot-operated pressure reducing/relieving valves reduce a high primary pressure at the inlet to a constant reduced pressure at port 1, with a full-flow relief function from port 1 to tank (port 3). The vent port (port 4) can be used as a means for remote control by pilot or 2-way valves.

Read more ▼
  • Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 3000 psi (210 bar).
  • 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.
  • Pilot operated valves exhibit very low dead-band transition between reducing and relieving modes.
  • 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.
  • By controlling the pressure at the vent (port 4), the effective setting of the valve can be controlled below the nominal valve setting.
  • 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-23A
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 1.55 lb.
Model Weight (metric) 0.70 kg.
Seal kit – Cartridge Viton: 990023006

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
W 150 – 4500 psi (10,5 – 315 bar), 200 psi (14 bar) Standard Setting
H 30 – 3000 psi (2 – 210 bar), 200 psi (14 bar) Standard Setting
J 25 – 1500 psi (1,7 – 105 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-23A
Nominal Capacity: 40 gpm (160 lpm)
Downloads
PDFSTP
Possible variants

PVHBCAN, PVHB-CAN, PVHBCAN/AP, PVHB-CAN/AP, PVHBCAN/LH, PVHB-CAN/LH, PVHBCAV, PVHB-CAV, PVHBCAV/AP, PVHB-CAV/AP, PVHBCAV/LH, PVHB-CAV/LH, PVHBCBN, PVHB-CBN, PVHBCBN/AP, PVHB-CBN/AP, PVHBCBN/LH, PVHB-CBN/LH, PVHBCBV, PVHB-CBV, PVHBCBV/AP, PVHB-CBV/AP, PVHBCBV/LH, PVHB-CBV/LH, PVHBCDN, PVHB-CDN, PVHBCDN/AP, PVHB-CDN/AP, PVHBCDN/LH, PVHB-CDN/LH, PVHBCDV, PVHB-CDV, PVHBCDV/AP, PVHB-CDV/AP, PVHBCDV/LH, PVHB-CDV/LH, PVHBCEN, PVHB-CEN, PVHBCEN/AP, PVHB-CEN/AP, PVHBCEN/LH, PVHB-CEN/LH, PVHBCEV, PVHB-CEV, PVHBCEV/AP, PVHB-CEV/AP, PVHBCEV/LH, PVHB-CEV/LH, PVHBCHN, PVHB-CHN, PVHBCHN/AP, PVHB-CHN/AP, PVHBCHN/LH, PVHB-CHN/LH, PVHBCHV, PVHB-CHV, PVHBCHV/AP, PVHB-CHV/AP, PVHBCHV/LH, PVHB-CHV/LH, PVHBCJN, PVHB-CJN, PVHBCJN/AP, PVHB-CJN/AP, PVHBCJN/LH, PVHB-CJN/LH, PVHBCJV, PVHB-CJV, PVHBCJV/AP, PVHB-CJV/AP, PVHBCJV/LH, PVHB-CJV/LH, PVHBCWN, PVHB-CWN, PVHBCWN/AP, PVHB-CWN/AP, PVHBCWN/LH, PVHB-CWN/LH, PVHBCWV, PVHB-CWV, PVHBCWV/AP, PVHB-CWV/AP, PVHBCWV/LH, PVHB-CWV/LH, PVHBKAN, PVHB-KAN, PVHBKAV, PVHB-KAV, PVHBKBN, PVHB-KBN, PVHBKBV, PVHB-KBV, PVHBKDN, PVHB-KDN, PVHBKDV, PVHB-KDV, PVHBKEN, PVHB-KEN, PVHBKEV, PVHB-KEV, PVHBKHN, PVHB-KHN, PVHBKHV, PVHB-KHV, PVHBKJN, PVHB-KJN, PVHBKJV, PVHB-KJV, PVHBKWN, PVHB-KWN, PVHBKWV, PVHB-KWV, PVHBLAN, PVHB-LAN, PVHBLAN/AP, PVHB-LAN/AP, PVHBLAN/LH, PVHB-LAN/LH, PVHBLAV, PVHB-LAV, PVHBLAV/AP, PVHB-LAV/AP, PVHBLAV/LH, PVHB-LAV/LH, PVHBLBN, PVHB-LBN, PVHBLBN/AP, PVHB-LBN/AP, PVHBLBN/LH, PVHB-LBN/LH, PVHBLBV, PVHB-LBV, PVHBLBV/AP, PVHB-LBV/AP, PVHBLBV/LH, PVHB-LBV/LH, PVHBLDN, PVHB-LDN, PVHBLDN/AP, PVHB-LDN/AP, PVHBLDN/LH, PVHB-LDN/LH, PVHBLDV, PVHB-LDV, PVHBLDV/AP, PVHB-LDV/AP, PVHBLDV/LH, PVHB-LDV/LH, PVHBLEN, PVHB-LEN, PVHBLEN/AP, PVHB-LEN/AP, PVHBLEN/LH, PVHB-LEN/LH, PVHBLEV, PVHB-LEV, PVHBLEV/AP, PVHB-LEV/AP, PVHBLEV/LH, PVHB-LEV/LH, PVHBLHN, PVHB-LHN, PVHBLHN/AP, PVHB-LHN/AP, PVHBLHN/LH, PVHB-LHN/LH, PVHBLHV, PVHB-LHV, PVHBLHV/AP, PVHB-LHV/AP, PVHBLHV/LH, PVHB-LHV/LH, PVHBLJN, PVHB-LJN, PVHBLJN/AP, PVHB-LJN/AP, PVHBLJN/LH, PVHB-LJN/LH, PVHBLJV, PVHB-LJV, PVHBLJV/AP, PVHB-LJV/AP, PVHBLJV/LH, PVHB-LJV/LH, PVHBLWN, PVHB-LWN, PVHBLWN/AP, PVHB-LWN/AP, PVHBLWN/LH, PVHB-LWN/LH, PVHBLWV, PVHB-LWV, PVHBLWV/AP, PVHB-LWV/AP, PVHBLWV/LH, PVHB-LWV/LH