Original SUN PBDB-LAN Cartridge Valve Hydraulic Valve
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.
- 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.
- 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.
- 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.
- 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
| Cavity |
T-11A |
| Series |
1 |
| Capacity |
10 gpm |
| Maximum Operating Pressure |
5000 psi |
| Factory Pressure Settings Established at |
blocked control port (dead headed) |
| Control Pilot Flow |
7 - 10 in³/min. |
| Adjustment - No. of CW Turns from Min. to Max. setting |
5 |
| Valve Hex Size |
7/8 in. |
| Valve Installation Torque |
30 - 35 lbf ft |
| Adjustment Screw Internal Hex Size |
5/32 in. |
| Locknut Hex Size |
9/16 in. |
| Locknut Torque |
80 - 90 lbf in. |
| Model Weight |
0.35 lb. |
| Seal kit - Cartridge |
Buna: 990011007 |
| Seal kit - Cartridge |
EPDM: 990011014 |
| Seal kit - Cartridge |
Polyurethane: 990011002 |
| Seal kit - Cartridge |
Viton: 990011006 |
Some other models:
|
PBJBLAN PBFBLBN PBBBLBN PBDBLAN PBDBLWN PBFBLWN PBBBLNN
PBBBLWN PBBBLAN PBBBLBV PBDB8WN PBFB8WN PBFBLAN PBDBLBN
PBDBLAV PBFBLNN PBJBLBN PBDBKBN PBHBLAV PBHBLAN PBBBLQN |
PPFBLEN PPDBLWN PPJBLAN PPDBLDN PPDB8DN PPFBLAN PPFB8WN
PPHBLWN PPFBLWN PPFBLBN PPFCABN PPFBKDN PPDBLAV PPFB8DN
PPJBLBN PPDBLNN PPDBLQN PPHBLDN PPFRLDN PPFBLDN PPDBCBN
PPHBLAN PPDBLBN PPFBKBN PPJBLNN PPHBLBN PPFBLNN PPJBLWN |
| |
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