SUN HYDRAULICS
RELIEF CART
RPCCLQN
$53.41 USD
- SUN HYDRAULICS
- Material:RPCCLQN
- Model:RPCC-LQN
- Summary:Cartridge
Quantity in stock: 0
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics RPCCLQN (RPCCLQN) is a pilot-operated, balanced-piston relief cartridge designed for pressure regulation in hydraulic systems. This valve is normally closed and begins to open to the tank port when the inlet pressure reaches its set point, effectively throttling flow to maintain desired pressure levels. The RPCCLQN is known for its accuracy, low pressure rise versus flow, smooth operation, quiet performance, and moderate response speed. It features a 2-port design that allows for interchangeability with other relief cartridges of the same frame size and flow path. This model can handle maximum pressures at port 2, making it suitable for cross-port relief circuits; however, users should consider potential spool leakage in such applications. The minimum setting for all spring ranges is 75 psi (5 bar), but it is not recommended for load-holding applications due to spool leakage concerns. The back pressure on the tank port directly affects the valve setting at a 1:1 ratio. To protect against contamination, the main stage orifice is well-guarded. The cartridge incorporates Sun's floating style construction to reduce the risk of internal part binding from excessive installation torque or machining variations. It has a capacity of 12 gpm (45 L/min) and operates at a maximum pressure of 5000 psi (350 bar). Typical response time is around 10 ms, with maximum valve leakage at specified conditions being minimal. Adjustments can be made with five clockwise turns to increase settings, and it includes specific hex sizes for installation and adjustment. Cartridges configured with EPDM seals are intended for systems using phosphate ester fluids; exposure to petroleum-based substances will damage these seals. The model's compact weight of .20 lb (0.10 kg) further adds to its versatility in various hydraulic applications.
The Sun Hydraulics RPCCLQN (RPCCLQN) is a pilot-operated, balanced-piston relief cartridge designed for pressure regulation in hydraulic systems. This valve is normally closed and begins to open to the tank port when the inlet pressure reaches its set point, effectively throttling flow to maintain desired pressure levels. The RPCCLQN is known for its accuracy, low pressure rise versus flow, smooth operation, quiet performance, and moderate response speed. It features a 2-port design that allows for interchangeability with other relief cartridges of the same frame size and flow path. This model can handle maximum pressures at port 2, making it suitable for cross-port relief circuits; however, users should consider potential spool leakage in such applications. The minimum setting for all spring ranges is 75 psi (5 bar), but it is not recommended for load-holding applications due to spool leakage concerns. The back pressure on the tank port directly affects the valve setting at a 1:1 ratio. To protect against contamination, the main stage orifice is well-guarded. The cartridge incorporates Sun's floating style construction to reduce the risk of internal part binding from excessive installation torque or machining variations. It has a capacity of 12 gpm (45 L/min) and operates at a maximum pressure of 5000 psi (350 bar). Typical response time is around 10 ms, with maximum valve leakage at specified conditions being minimal. Adjustments can be made with five clockwise turns to increase settings, and it includes specific hex sizes for installation and adjustment. Cartridges configured with EPDM seals are intended for systems using phosphate ester fluids; exposure to petroleum-based substances will damage these seals. The model's compact weight of .20 lb (0.10 kg) further adds to its versatility in various hydraulic applications.
Pilot-operated, balanced-piston relief cartridges are normally closed pressure regulating valves. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to regulate the pressure. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast.
- All 2-port relief cartridges (except pilot reliefs) are physically and functionally interchangeable (same flow path, same cavity for a given frame size).
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.
- Minimum setting is 75 psi (5 bar) for all spring ranges.
- Not suitable for use in load holding applications due to spool leakage.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- The main stage orifice is protected against contamination.
- 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.
- 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.
| Cavity | T-162A |
| Series | 0 |
| Capacity | 12 gpm45 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 10 ms10 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi30 cc/min.@70 bar |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 3/4 in.19,1 mm |
| Valve Installation Torque | 20 - 25 lbf ft27 - 33 Nm |
| Adjustment Screw Internal Hex Size | 5/32 in.4 mm |
| Locknut Hex Size | 1/2 in.12,7 mm |
| Locknut Torque | 80 - 90 lbf in.9 - 10 Nm |
| Model Weight | .20 lb0,10 kg |
| Seal kit - Cartridge | Viton: 990-162-006 |
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