SUN HYDRAULICS
RPGCKBE
$316.51 USD
- SUN HYDRAULICS
- Material:RPGCKBE
- Model:RPGC-KBE
- 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 RPGCKBE (Material Number: RPGCKBE) is a pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve remains normally closed until the inlet pressure reaches its set point, at which point it opens to tank port 2, throttling flow to maintain the desired pressure level. Known for its accuracy and smooth operation, the RPGCKBE exhibits low pressure rise relative to flow and is moderately fast in response time. It is suitable for cross-port relief circuits but should be used with caution regarding spool leakage when applied in load-holding applications. This cartridge valve can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of up to 50 gallons per minute (200 liters per minute). The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. Additionally, backpressure at tank port 2 directly affects the valve setting at a 1:1 ratio, which must be considered during installation. The RPGCKBE features corrosion-resistant options identified by specific model code suffixes\u2014AP for stainless steel components and LH for zinc-nickel plating\u2014making it suitable for use in corrosive environments. The valve's adjustment range can be modified using W or Y controls without special settings, allowing flexibility in various applications. The incorporation of Sun's floating style construction minimizes potential binding due to installation torque or machining variations. With an adjustment screw internal hex size of 5/32 inches (4 mm) and a locknut hex size of 9/16 inches (15 mm), this cartridge requires specific torque settings during installation: valve installation torque ranges from 45-50 lbf ft (61-68 Nm), while locknut torque ranges from 80-90 lbf in (9-10 Nm). The seal kit compatible with this model uses Viton material for enhanced sealing performance.
The Sun Hydraulics RPGCKBE (Material Number: RPGCKBE) is a pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve remains normally closed until the inlet pressure reaches its set point, at which point it opens to tank port 2, throttling flow to maintain the desired pressure level. Known for its accuracy and smooth operation, the RPGCKBE exhibits low pressure rise relative to flow and is moderately fast in response time. It is suitable for cross-port relief circuits but should be used with caution regarding spool leakage when applied in load-holding applications. This cartridge valve can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of up to 50 gallons per minute (200 liters per minute). The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. Additionally, backpressure at tank port 2 directly affects the valve setting at a 1:1 ratio, which must be considered during installation. The RPGCKBE features corrosion-resistant options identified by specific model code suffixes\u2014AP for stainless steel components and LH for zinc-nickel plating\u2014making it suitable for use in corrosive environments. The valve's adjustment range can be modified using W or Y controls without special settings, allowing flexibility in various applications. The incorporation of Sun's floating style construction minimizes potential binding due to installation torque or machining variations. With an adjustment screw internal hex size of 5/32 inches (4 mm) and a locknut hex size of 9/16 inches (15 mm), this cartridge requires specific torque settings during installation: valve installation torque ranges from 45-50 lbf ft (61-68 Nm), while locknut torque ranges from 80-90 lbf in (9-10 Nm). The seal kit compatible with this model uses Viton material for enhanced sealing performance.
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 |
Show FAQ
Additional Resources
- 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
- CE/TÜV Certified Pressure Relief Valves
- Manufacturing Sun Cartridge Cavities
- Pressure Relief and Regulating Valves
- 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
- Sun Model Code Explanation; 999-901-334
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.