SUN HYDRAULICS
RPICQWV
$199.06 USD
- SUN HYDRAULICS
- Material:RPICQWV
- Model:RPIC-QWV
- 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 RPICQWV (RPICQWV) is a pilot-operated, balanced-piston relief cartridge designed for precise pressure regulation in hydraulic systems. When the inlet port pressure reaches the valve's set point, it opens to the tank port, throttling flow to maintain desired pressure levels. Known for their accuracy, these valves offer a low-pressure rise versus flow and operate smoothly and quietly with moderate speed. They can accept maximum pressure at port 2 and are suitable for cross-port relief circuits, though users should consider spool leakage in such applications. The main stage orifice is protected by a 150-micron stainless steel screen, ensuring durability. However, these valves are not recommended for load-holding applications due to potential spool leakage. This model features a cavity T-16A series 3 with a capacity of 100 gpm (380 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The typical response time is around 10 ms, with maximum valve leakage of approximately 4 in\u00b3/min at 1000 psi. Adjustments can be made with up to five clockwise turns to increase the setting. The valve has an installation torque range of 150\u2013160 lbf\u00b7ft (203\u2013217 Nm), and adjustment screw internal hex size is ^5/32 in., while the locknut hex size is ^9/16 in. This cartridge incorporates Sun\u2019s floating style construction to minimize internal binding due to installation torque or machining variations. It is available with EPDM seals for compatibility with phosphate ester fluids but should not be exposed to petroleum-based substances as this will damage the seals. Corrosion-resistant options are available with model code suffixes AP or LH for different external finishes. This product weighs approximately 1.20 lb (0.55 kg) and includes a Viton seal kit option for enhanced durability in various environments.
The Sun Hydraulics RPICQWV (RPICQWV) is a pilot-operated, balanced-piston relief cartridge designed for precise pressure regulation in hydraulic systems. When the inlet port pressure reaches the valve's set point, it opens to the tank port, throttling flow to maintain desired pressure levels. Known for their accuracy, these valves offer a low-pressure rise versus flow and operate smoothly and quietly with moderate speed. They can accept maximum pressure at port 2 and are suitable for cross-port relief circuits, though users should consider spool leakage in such applications. The main stage orifice is protected by a 150-micron stainless steel screen, ensuring durability. However, these valves are not recommended for load-holding applications due to potential spool leakage. This model features a cavity T-16A series 3 with a capacity of 100 gpm (380 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The typical response time is around 10 ms, with maximum valve leakage of approximately 4 in\u00b3/min at 1000 psi. Adjustments can be made with up to five clockwise turns to increase the setting. The valve has an installation torque range of 150\u2013160 lbf\u00b7ft (203\u2013217 Nm), and adjustment screw internal hex size is ^5/32 in., while the locknut hex size is ^9/16 in. This cartridge incorporates Sun\u2019s floating style construction to minimize internal binding due to installation torque or machining variations. It is available with EPDM seals for compatibility with phosphate ester fluids but should not be exposed to petroleum-based substances as this will damage the seals. Corrosion-resistant options are available with model code suffixes AP or LH for different external finishes. This product weighs approximately 1.20 lb (0.55 kg) and includes a Viton seal kit option for enhanced durability 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.
- 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.
- All 2-port relief cartridges (except pilot reliefs) are physically and functionally interchangeable (same flow path, same cavity for a given frame size).
- 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-16A |
| Series | 3 |
| Capacity | 100 gpm380 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) | 4 in³/min.@1000 psi65 cc/min.@70 bar |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 1 1/4 in.31,8 mm |
| Valve Installation Torque | 150 - 160 lbf ft203 - 217 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 | 1.20 lb0,55 kg |
| Seal kit - Cartridge | Viton: 990-016-006 |
Show FAQ
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