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PVJA

Pressure reducing/relieving valve from Sun Hydraulics

Description

Externally drained, 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). Draining the pilot section at port 4 makes these valves insensitive to pressure at tank (port 3) and provides a means for remote control by pilot or 2-way valves.

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  • Maximum pressure at port 3 should be limited to 3000 psi (210 bar).
  • 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.
  • Pressure on the drain (port 4) 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.
  • 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.
  • By controlling the pressure at the drain (port 4), the effective setting of the valve can be increased over 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-24A
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 3.53 lb.
Model Weight (metric) 1.60 kg.
Seal kit – Cartridge Viton: 990024006

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
E EPDM

Material/Coating

/AP Stainless Steel, Passivated
Cavity: T-24A
Nominal Capacity: 320 lpm (80 gpm)
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Possible variants

PVJA8DE, PVJA-8DE, PVJA8DN, PVJA-8DN, PVJA8DV, PVJA-8DV, PVJA8WE, PVJA-8WE, PVJA8WN, PVJA-8WN, PVJA8WV, PVJA-8WV, PVJACAE, PVJA-CAE, PVJACAN, PVJA-CAN, PVJACAN/AP, PVJA-CAN/AP, PVJACAV, PVJA-CAV, PVJACAV/AP, PVJA-CAV/AP, PVJACBE, PVJA-CBE, PVJACBN, PVJA-CBN, PVJACBN/AP, PVJA-CBN/AP, PVJACBV, PVJA-CBV, PVJACBV/AP, PVJA-CBV/AP, PVJACDE, PVJA-CDE, PVJACDN, PVJA-CDN, PVJACDN/AP, PVJA-CDN/AP, PVJACDV, PVJA-CDV, PVJACDV/AP, PVJA-CDV/AP, PVJACEE, PVJA-CEE, PVJACEN, PVJA-CEN, PVJACEN/AP, PVJA-CEN/AP, PVJACEV, PVJA-CEV, PVJACEV/AP, PVJA-CEV/AP, PVJACHE, PVJA-CHE, PVJACHN, PVJA-CHN, PVJACHN/AP, PVJA-CHN/AP, PVJACHV, PVJA-CHV, PVJACHV/AP, PVJA-CHV/AP, PVJACJE, PVJA-CJE, PVJACJN, PVJA-CJN, PVJACJN/AP, PVJA-CJN/AP, PVJACJV, PVJA-CJV, PVJACJV/AP, PVJA-CJV/AP, PVJACWE, PVJA-CWE, PVJACWN, PVJA-CWN, PVJACWN/AP, PVJA-CWN/AP, PVJACWV, PVJA-CWV, PVJACWV/AP, PVJA-CWV/AP, PVJAKAE, PVJA-KAE, PVJAKAN, PVJA-KAN, PVJAKAV, PVJA-KAV, PVJAKBE, PVJA-KBE, PVJAKBN, PVJA-KBN, PVJAKBV, PVJA-KBV, PVJAKDE, PVJA-KDE, PVJAKDN, PVJA-KDN, PVJAKDV, PVJA-KDV, PVJAKEE, PVJA-KEE, PVJAKEN, PVJA-KEN, PVJAKEV, PVJA-KEV, PVJAKHE, PVJA-KHE, PVJAKHN, PVJA-KHN, PVJAKHV, PVJA-KHV, PVJAKJE, PVJA-KJE, PVJAKJN, PVJA-KJN, PVJAKJV, PVJA-KJV, PVJAKWE, PVJA-KWE, PVJAKWN, PVJA-KWN, PVJAKWV, PVJA-KWV, PVJALAE, PVJA-LAE, PVJALAN, PVJA-LAN, PVJALAN/AP, PVJA-LAN/AP, PVJALAV, PVJA-LAV, PVJALAV/AP, PVJA-LAV/AP, PVJALBE, PVJA-LBE, PVJALBN, PVJA-LBN, PVJALBN/AP, PVJA-LBN/AP, PVJALBV, PVJA-LBV, PVJALBV/AP, PVJA-LBV/AP, PVJALDE, PVJA-LDE, PVJALDN, PVJA-LDN, PVJALDN/AP, PVJA-LDN/AP, PVJALDV, PVJA-LDV, PVJALDV/AP, PVJA-LDV/AP, PVJALEE, PVJA-LEE, PVJALEN, PVJA-LEN, PVJALEN/AP, PVJA-LEN/AP, PVJALEV, PVJA-LEV, PVJALEV/AP, PVJA-LEV/AP, PVJALHE, PVJA-LHE, PVJALHN, PVJA-LHN, PVJALHN/AP, PVJA-LHN/AP, PVJALHV, PVJA-LHV, PVJALHV/AP, PVJA-LHV/AP, PVJALJE, PVJA-LJE, PVJALJN, PVJA-LJN, PVJALJN/AP, PVJA-LJN/AP, PVJALJV, PVJA-LJV, PVJALJV/AP, PVJA-LJV/AP, PVJALWE, PVJA-LWE, PVJALWN, PVJA-LWN, PVJALWN/AP, PVJA-LWN/AP, PVJALWV, PVJA-LWV, PVJALWV/AP, PVJA-LWV/AP