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SUN HYDRAULICS CORP
PRJRLWN/AP
Pressure Control
Cartridge
$931.30
SUN HYDRAULICS CORP
MATERIAL: PRJRLWN/AP
SUMMARY: Cartridge
Quantity in stock: 0
Direct-acting, pressure reducing valves reduce a high primary pressure at the inlet (port 2) to a constant reduced pressure at port 1. These valves incorporate a damped construction for stable operation allowing the use of high reduced pressure.
- Note: This valve has no relieving capability. It should not be used in a dead-headed application. If the reduced pressure side of the circuit has very low leakage the pressure may rise significantly. The pressure rise will vary from valve to valve.
- This type of valve, PR*R, is a good replacement for an LP*C as a normally open, restrictive compensating element if a higher pressure drop across an orifice is needed.
- 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.
- All spring ranges are tested for correct operation with 5000 psi (350 bar) inlet pressure.
- Suitable for accumulator circuits since the absence of pilot control flow results in reduced secondary circuit leakage.
- Direct operated version offers superior dynamic response compared to equivalent pilot operated models.
- Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
- Leakage specified in Technical Data is out of port 3 with a supply pressure of 2000 psi (140 bar) and the valve set at mid range. This leakage is directly proportional to pressure differential and inversely proportional to viscosity expressed in centistokes.
- 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-19A |
Series | 4 |
Capacity | 80 gpm320 L/min. |
Factory Pressure Settings Established at | 2 in³/min.30 cc/min. |
Maximum Operating Pressure | 5000 psi350 bar |
Maximum Valve Leakage at 110 SUS (24 cSt) | 5 in³/min.80 cc/min. |
Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
Valve Hex Size | 1 5/8 in.41,3 mm |
Valve Installation Torque | 350 - 375 lbf ft474 - 508 Nm |
Adjustment Screw Internal Hex Size | 5/32 in.4 mm |
Locknut Hex Size | 9/16 in.15 mm |
Locknut Torque | 80 - 90 lbf in.9 - 10 Nm |
Model Weight | 3.10 lb1,40 kg |
Seal kit - Cartridge | Viton: 990-019-006 |
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