SUN HYDRAULICS
RPESLAN/LH
$109.70 USD
- SUN HYDRAULICS
- Material:RPESLAN/LH
- Model:RPES-LAN/LH
- Summary:Cartridge
Due to extremely high demand, please call for availability
The Sun Hydraulics RPESLAN/LH (Material Number: RPESLAN/LH) is a pilot-operated, balanced-poppet relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to the tank port when the inlet pressure reaches the set level, effectively throttling flow to maintain desired pressure levels. Notable for its accuracy, smooth operation, and low noise emissions, this valve is engineered to minimize issues related to cavitation. It can handle maximum pressures at port 2 and is suitable for use in cross-port relief circuits and load-holding applications. The valve's design includes a 150-micron stainless steel screen protecting the main stage orifice, ensuring durability against oil contamination and temperature variations. The RPESLAN/LH model incorporates Sun's floating style construction, which reduces the risk of internal parts binding due to installation torque or machining variations. The valve allows for back pressure on the tank port to be directly additive to the valve setting at a 1:1 ratio. Adjustable features include W and Y controls that can be specified with or without a special setting, allowing full-range adjustment unless otherwise specified. Key specifications include a capacity of 25 gpm (95 L/min), maximum operating pressure of 5000 psi (350 bar), typical response time of 7 ms, and minimal leakage rates. Installation requires specific torque settings for both the valve body and locknut to ensure optimal performance. The unit weighs approximately 0.30 lb (0.15 kg) and utilizes Viton seals for compatibility with various hydraulic fluids.
Pilot-operated, balanced-poppet 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, smooth, quiet, fast, and have low pressure rise vs. flow.
- Because the modulating occurs inside the cartridge, these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
- Valve is relatively insensitive to varying oil temperatures and oil borne contamination.
- Main stage orifice is protected by a 150 micron stainless steel screen.
- Suitable for use in load holding applications.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- 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.
- 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-10A |
| Series | 1 |
| Capacity | 25 gpm95 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 7 ms7 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 10 drops/min.0,7 cc/min. |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 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 | .30 lb0,15 kg |
| Seal kit - Cartridge | Viton: 990-310-006 |
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Additional Resources
- CE/TÜV Certified Pressure Relief Valves
- Pressure Relief and Regulating Cartridge Valve Technical Tips
- Pilot Operated, Balanced Poppet Relief Valves
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- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
- Sun Introduces 'Hybrid' Valves
- Manufacturing Sun Cartridge Cavities
- Pressure Relief and Regulating Valves
- Sun Model Code Explanation; 999-901-334
- Cartridges: Materials of Construction
- Fluid and Temperature Recommendations
- Performance Data
- Sun's Floating Style Screw-In Cartridge
- Units of Measure, Settings, and Conversions
- Cavity Information (S-171) and Tooling