SUN HYDRAULICS
RPECKKE
$293.07 USD
- SUN HYDRAULICS
- Material:RPECKKE
- Model:RPEC-KKE
- 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 RPECKKE (Material Number: RPECKKE) is a high-performance pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This normally closed valve opens to the tank port 2 when the inlet port 1 pressure reaches a predetermined setting, thereby throttling flow to maintain desired pressure levels. Known for its accuracy and low-pressure rise versus flow, the RPECKKE provides smooth and quiet operation with moderate response speed. It features interchangeable design across all 2-port relief cartridges, ensuring compatibility within the same frame size and flow path. The valve can withstand maximum pressure at port 2, making it suitable for cross-port relief circuits, although users should account for potential spool leakage in such applications. The main stage orifice is safeguarded by a robust 150-micron stainless steel screen, though it is not recommended for load-holding applications due to potential leakage issues. The back pressure on tank port 2 directly adds to the valve setting at a 1:1 ratio. Cartridges equipped with EPDM seals are compatible with phosphate ester fluids but may suffer damage from petroleum-based substances. This cartridge incorporates Sun\u2019s floating style construction to reduce internal part binding risks due to excessive torque or machining variations during installation. It offers a capacity of up to 25 gpm (95 L/min) and operates under pressures as high as 5000 psi (350 bar), with typical response times around 10 milliseconds. The valve allows adjustment through up to five clockwise turns to increase settings and comes with specific torque requirements for installation and adjustments. Corrosion-resistant models are available with options like stainless steel or zinc-nickel plated components, identified by suffixes AP or LH respectively in the model code.
The Sun Hydraulics RPECKKE (Material Number: RPECKKE) is a high-performance pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This normally closed valve opens to the tank port 2 when the inlet port 1 pressure reaches a predetermined setting, thereby throttling flow to maintain desired pressure levels. Known for its accuracy and low-pressure rise versus flow, the RPECKKE provides smooth and quiet operation with moderate response speed. It features interchangeable design across all 2-port relief cartridges, ensuring compatibility within the same frame size and flow path. The valve can withstand maximum pressure at port 2, making it suitable for cross-port relief circuits, although users should account for potential spool leakage in such applications. The main stage orifice is safeguarded by a robust 150-micron stainless steel screen, though it is not recommended for load-holding applications due to potential leakage issues. The back pressure on tank port 2 directly adds to the valve setting at a 1:1 ratio. Cartridges equipped with EPDM seals are compatible with phosphate ester fluids but may suffer damage from petroleum-based substances. This cartridge incorporates Sun\u2019s floating style construction to reduce internal part binding risks due to excessive torque or machining variations during installation. It offers a capacity of up to 25 gpm (95 L/min) and operates under pressures as high as 5000 psi (350 bar), with typical response times around 10 milliseconds. The valve allows adjustment through up to five clockwise turns to increase settings and comes with specific torque requirements for installation and adjustments. Corrosion-resistant models are available with options like stainless steel or zinc-nickel plated components, identified by suffixes AP or LH respectively in the model code.
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
- Pressure Relief and Regulating Valves
- Manufacturing Sun Cartridge Cavities
- 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
- Sun Model Code Explanation; 999-901-334
- Cartridges: Materials of Construction
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.