SUN HYDRAULICS
RPECOEN
$74.26 USD
- SUN HYDRAULICS
- Material:RPECOEN
- Model:RPEC-OEN
- 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 RPECOEN (RPECOEN) is a pilot-operated, balanced-piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve remains normally closed, opening to the tank port when the inlet pressure reaches its set point, thereby throttling flow to maintain the desired pressure. Known for its accuracy and low pressure rise relative to flow, this valve operates smoothly and quietly with moderate response speed. It is interchangeable with other 2-port relief cartridges of similar frame sizes, sharing the same flow path and cavity dimensions. The RPECOEN can handle maximum pressures at port 2, making it suitable for cross-port relief circuits, although spool leakage should be considered in such applications. It features a main stage orifice protected by a 150-micron stainless steel screen but is not recommended for load-holding applications due to potential leakage. The back pressure on port 2 directly adds to the valve setting at a 1:1 ratio. Cartridges with EPDM seals are specifically designed for systems using phosphate ester fluids; exposure to petroleum-based substances will damage these seals. The valve's W and Y controls allow adjustment throughout its range unless a special setting is specified, which then becomes the maximum setting. For use in corrosive environments, corrosion-resistant options are available with external stainless steel components or zinc-nickel plating, indicated by suffixes AP or LH in the model code. The Sun floating style construction minimizes internal part binding due to installation torque or machining variations. Additional specifications include a capacity of 25 gpm (95 L/min), maximum operating pressure of 5000 psi (350 bar), typical response time of 10 ms, and maximum leakage of 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). The valve's installation requires specific torques and hex sizes for adjustment and locknut components.
The Sun Hydraulics RPECOEN (RPECOEN) is a pilot-operated, balanced-piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve remains normally closed, opening to the tank port when the inlet pressure reaches its set point, thereby throttling flow to maintain the desired pressure. Known for its accuracy and low pressure rise relative to flow, this valve operates smoothly and quietly with moderate response speed. It is interchangeable with other 2-port relief cartridges of similar frame sizes, sharing the same flow path and cavity dimensions. The RPECOEN can handle maximum pressures at port 2, making it suitable for cross-port relief circuits, although spool leakage should be considered in such applications. It features a main stage orifice protected by a 150-micron stainless steel screen but is not recommended for load-holding applications due to potential leakage. The back pressure on port 2 directly adds to the valve setting at a 1:1 ratio. Cartridges with EPDM seals are specifically designed for systems using phosphate ester fluids; exposure to petroleum-based substances will damage these seals. The valve's W and Y controls allow adjustment throughout its range unless a special setting is specified, which then becomes the maximum setting. For use in corrosive environments, corrosion-resistant options are available with external stainless steel components or zinc-nickel plating, indicated by suffixes AP or LH in the model code. The Sun floating style construction minimizes internal part binding due to installation torque or machining variations. Additional specifications include a capacity of 25 gpm (95 L/min), maximum operating pressure of 5000 psi (350 bar), typical response time of 10 ms, and maximum leakage of 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). The valve's installation requires specific torques and hex sizes for adjustment and locknut components.
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.
- Main stage orifice is protected by a 150 micron stainless steel screen.
- 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.
- 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.
- 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.
- 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.
| 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 | 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 | 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: 990-010-006 |
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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
- Sun Expands Corrosion-Resistant Solutions
- Sun Offers Zinc-Nickel Plating for Corrosion Resistance
- Sun Cartridges with EPDM Seals
- Series 4 PLUS Cartridges Offer Higher Flows with Lower Pressure Losses
- Pilot-Operated, Balanced Poppet, Anti Shock Reliefs
- CavitySaver multi-function valves deliver single-cartridge solutions
- 'Soft' Relief Eliminates Pressure Spikes
- Tri-Grip Handknob Now Offered From Sun as a Standard Control Option
- 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
Notes:
- For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.