SUN HYDRAULICS
RVCDWDN
$128.07 USD
- SUN HYDRAULICS
- Material:RVCDWDN
- Model:RVCD-WDN
- 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 RVCDWDN (RVCDWDN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed pressure regulating valve activates when the inlet port pressure reaches the valve setting, opening to tank port 2 to manage flow and stabilize pressure. It features a vent port for remote control and an external drain to mitigate back pressure effects. Known for its accuracy and low-pressure rise versus flow characteristics, this valve operates smoothly and quietly with moderate speed. Notable specifications include a maximum operating pressure of 5000 psi (350 bar), a control pilot flow of 7-10 in\u00b3/min (0.11-0.16 L/min), and a typical response time of 10 ms. The RVCDWDN is suitable for cross-port relief circuits, provided spool leakage is accounted for, but it is not recommended for load-holding applications due to potential leakage issues. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability under various conditions. Additionally, cartridges configured with EPDM seals are intended for phosphate ester fluid systems only; exposure to petroleum-based fluids can damage these seals. Incorporating Sun's floating style construction minimizes internal part binding risks during installation or due to machining variations. The valve offers adjustability throughout its full range using W or Y controls unless specified otherwise with a special setting representing the maximum limit. Installation requires specific torque values: 30-35 lbf ft (41-47 Nm) for the valve and 80-90 lbf in (9-10 Nm) for the locknut. The RVCDWDN's compact design weighs just .40 lb (0.20 kg), making it an efficient choice for precise hydraulic system applications requiring reliable pressure control without susceptibility to back pressure influences.
The Sun Hydraulics RVCDWDN (RVCDWDN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed pressure regulating valve activates when the inlet port pressure reaches the valve setting, opening to tank port 2 to manage flow and stabilize pressure. It features a vent port for remote control and an external drain to mitigate back pressure effects. Known for its accuracy and low-pressure rise versus flow characteristics, this valve operates smoothly and quietly with moderate speed. Notable specifications include a maximum operating pressure of 5000 psi (350 bar), a control pilot flow of 7-10 in\u00b3/min (0.11-0.16 L/min), and a typical response time of 10 ms. The RVCDWDN is suitable for cross-port relief circuits, provided spool leakage is accounted for, but it is not recommended for load-holding applications due to potential leakage issues. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability under various conditions. Additionally, cartridges configured with EPDM seals are intended for phosphate ester fluid systems only; exposure to petroleum-based fluids can damage these seals. Incorporating Sun's floating style construction minimizes internal part binding risks during installation or due to machining variations. The valve offers adjustability throughout its full range using W or Y controls unless specified otherwise with a special setting representing the maximum limit. Installation requires specific torque values: 30-35 lbf ft (41-47 Nm) for the valve and 80-90 lbf in (9-10 Nm) for the locknut. The RVCDWDN's compact design weighs just .40 lb (0.20 kg), making it an efficient choice for precise hydraulic system applications requiring reliable pressure control without susceptibility to back pressure influences.
Ventable, pilot-operated, balanced piston relief cartridges with external drain 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. They provide a vent port (port 3) that connects between the main piston and pilot stage to provide for remote control by other pilot or 2-way valves and a drain (port 4) that makes them insensitive to back pressure. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast.
- A remote pilot relief on port 3 (vent) will control the valve below its own setting.
- 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.
- Pressure at port 4 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
- 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.
- 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-21A |
| Series | 1 |
| Capacity | 15 gpm60 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | 7 - 10 in³/min.0,11 - 0,16 L/min. |
| 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 | .40 lb0,20 kg |
| Seal kit - Cartridge | Viton: 990-021-006 |
Show FAQ
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