SUN HYDRAULICS
RPGECUN
$102.20 USD
- SUN HYDRAULICS
- Material:RPGECUN
- Model:RPGE-CUN
- Summary:Cartridge
Due to extremely high demand, please call 888-905-7411 for availability
***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 RPGECUN (RPGECUN) is a fast-acting, pilot-operated, balanced piston relief cartridge designed for hydraulic systems requiring rapid pressure regulation to protect components from pressure transients. This valve operates by opening rapidly when the inlet port pressure reaches the set threshold, diverting flow to the tank port and effectively limiting any further pressure increase. It features a low-pressure rise versus flow characteristic, making it particularly responsive with a typical response time of just 2 milliseconds. The RPGECUN is interchangeable with other 2-port relief cartridges of the same frame size and can handle maximum pressures up to 5000 psi at port 2, making it suitable for cross-port relief circuits. However, users should consider spool leakage in such applications and note that it's not ideal for load-holding purposes due to this leakage. The valve's main stage orifice is protected by a 150-micron stainless steel screen, ensuring durability and reliability in operation. For systems using phosphate ester fluids, cartridges with EPDM seals are available; these seals should not be exposed to petroleum-based products. Installation is straightforward due to Sun's floating style construction which minimizes risks of internal binding from excessive torque or machining variations. The RPGECUN has a capacity of up to 50 gpm and features adjustable settings with five full turns required to increase the setting clockwise. The valve installation requires a torque of 45-50 lbf ft and uses Viton seal kits for maintenance. With its robust design and efficient performance characteristics, this relief cartridge is an essential component in hydraulic systems where fast response times are critical for system protection.
The Sun Hydraulics RPGECUN (RPGECUN) is a fast-acting, pilot-operated, balanced piston relief cartridge designed for hydraulic systems requiring rapid pressure regulation to protect components from pressure transients. This valve operates by opening rapidly when the inlet port pressure reaches the set threshold, diverting flow to the tank port and effectively limiting any further pressure increase. It features a low-pressure rise versus flow characteristic, making it particularly responsive with a typical response time of just 2 milliseconds. The RPGECUN is interchangeable with other 2-port relief cartridges of the same frame size and can handle maximum pressures up to 5000 psi at port 2, making it suitable for cross-port relief circuits. However, users should consider spool leakage in such applications and note that it's not ideal for load-holding purposes due to this leakage. The valve's main stage orifice is protected by a 150-micron stainless steel screen, ensuring durability and reliability in operation. For systems using phosphate ester fluids, cartridges with EPDM seals are available; these seals should not be exposed to petroleum-based products. Installation is straightforward due to Sun's floating style construction which minimizes risks of internal binding from excessive torque or machining variations. The RPGECUN has a capacity of up to 50 gpm and features adjustable settings with five full turns required to increase the setting clockwise. The valve installation requires a torque of 45-50 lbf ft and uses Viton seal kits for maintenance. With its robust design and efficient performance characteristics, this relief cartridge is an essential component in hydraulic systems where fast response times are critical for system protection.
Fast-acting, pilot-operated, balanced piston relief cartridges are normally closed, pressure-limiting valves used to protect hydraulics components from pressure transients. Fast opening and closing is gained at the expense of smoothness. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to limit the pressure rise. These valves have low pressure rise vs. flow and are very 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.
- 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-3A |
| Series | 2 |
| Capacity | 50 gpm200 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 2 ms2 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 3 in³/min.@1000 psi50 cc/min.@70 bar |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 1 1/8 in.28,6 mm |
| Valve Installation Torque | 45 - 50 lbf ft61 - 68 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 | .50 lb0,25 kg |
| Seal kit - Cartridge | Viton: 990-203-006 |
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Additional Resources
- 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
- 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
- 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.
