SUN HYDRAULICS
RELIEF CART
RPGCLAN
$88.70 USD
- SUN HYDRAULICS
- Material:RPGCLAN
- Model:RPGC-LAN
- Summary:Cartridge
Quantity in stock: 2
***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 RPGCLAN (RPGCLAN) is a pilot-operated, balanced-piston relief cartridge valve designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to tank port 2 when inlet port 1 reaches the set pressure, effectively throttling flow to maintain desired pressure levels. Known for their accuracy, these valves exhibit low pressure rise versus flow and operate smoothly and quietly with moderate speed. The RPGCLAN model is part of a series where all 2-port relief cartridges, except pilot reliefs, are interchangeable within the same frame size, offering flexibility in application. This valve can handle maximum pressure at port 2 and is suitable for cross-port relief circuits; however, users should be cautious of spool leakage in such applications. It features a main stage orifice protected by a 150-micron stainless steel screen but is not ideal for load-holding applications due to potential leakage. The back pressure on tank port 2 directly affects the valve setting at a 1:1 ratio. For systems using phosphate ester fluids, cartridges with EPDM seals are recommended as they resist damage from petroleum-based substances. The RPGCLAN incorporates Sun's floating style construction, reducing the risk of internal binding due to installation torque or machining variations. It operates at a maximum capacity of 50 gpm (200 L/min) and can withstand pressures up to 5000 psi (350 bar), with typical response times around 10 ms. The valve's adjustment mechanism allows for setting increases through five clockwise turns, while installation requires specific torque settings for optimal performance. This model weighs approximately .50 lb (0.25 kg) and utilizes Viton seal kits for maintenance and longevity in various environments.
The Sun Hydraulics RPGCLAN (RPGCLAN) is a pilot-operated, balanced-piston relief cartridge valve designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to tank port 2 when inlet port 1 reaches the set pressure, effectively throttling flow to maintain desired pressure levels. Known for their accuracy, these valves exhibit low pressure rise versus flow and operate smoothly and quietly with moderate speed. The RPGCLAN model is part of a series where all 2-port relief cartridges, except pilot reliefs, are interchangeable within the same frame size, offering flexibility in application. This valve can handle maximum pressure at port 2 and is suitable for cross-port relief circuits; however, users should be cautious of spool leakage in such applications. It features a main stage orifice protected by a 150-micron stainless steel screen but is not ideal for load-holding applications due to potential leakage. The back pressure on tank port 2 directly affects the valve setting at a 1:1 ratio. For systems using phosphate ester fluids, cartridges with EPDM seals are recommended as they resist damage from petroleum-based substances. The RPGCLAN incorporates Sun's floating style construction, reducing the risk of internal binding due to installation torque or machining variations. It operates at a maximum capacity of 50 gpm (200 L/min) and can withstand pressures up to 5000 psi (350 bar), with typical response times around 10 ms. The valve's adjustment mechanism allows for setting increases through five clockwise turns, while installation requires specific torque settings for optimal performance. This model weighs approximately .50 lb (0.25 kg) and utilizes Viton seal kits for maintenance and longevity in various environments.
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-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 | 10 ms10 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
- 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
- Sun Offers Zinc-Nickel Plating for Corrosion Resistance
- Sun Cartridges with EPDM Seals
- Series 4 PLUS Cartridges Offer Higher Flows with Lower Pressure Losses
- Manufacturing Sun Cartridge Cavities
- Pressure Relief and Regulating Valves
- 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
- Fluid and Temperature Recommendations
- Performance Data
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.
