SUN HYDRAULICS
RVETCAV
$208.70 USD
Tags:
- SUN HYDRAULICS
- Material:RVETCAV
- Model:RVET-CAV
- 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 RVETCAV (Material Number: RVETCAV) is a ventable, pilot-operated, anti-shock relief cartridge designed to limit maximum system pressure and control the rate of pressure rise. This valve opens and ramps closed at a constant speed, independent of settings and flows, making it suitable for applications requiring precise pressure control. It features a vent port that allows for remote control by other pilot or 2-way valves. The adjust screw sets both the maximum relief and minimum threshold settings, ensuring adaptability in various hydraulic systems. This valve is particularly beneficial in protecting hydrostatic drives by reducing the jerk caused by sudden reversals and can be used effectively in cross-port applications. It is not suitable for load-holding applications but excels in scenarios where remote pilot relief is necessary. With a capacity of 30 gpm (120 L/min) and a maximum operating pressure of 5000 psi (350 bar), it provides robust performance under demanding conditions. The RVETCAV incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations. Its design includes features such as protection against contamination for the main stage orifice and compatibility with small power units started against an anti-shock relief to extend pump life. Additionally, back pressure on the tank port is directly additive to the valve setting at a 1:1 ratio. With a response time typically around 2 ms and pressure ramp-up time between 200-400 ms, this valve offers reliable performance with quick reaction times. The adjustment mechanism allows for precise control with 4.5 clockwise turns needed to increase settings, ensuring ease of use in field adjustments.
The Sun Hydraulics RVETCAV (Material Number: RVETCAV) is a ventable, pilot-operated, anti-shock relief cartridge designed to limit maximum system pressure and control the rate of pressure rise. This valve opens and ramps closed at a constant speed, independent of settings and flows, making it suitable for applications requiring precise pressure control. It features a vent port that allows for remote control by other pilot or 2-way valves. The adjust screw sets both the maximum relief and minimum threshold settings, ensuring adaptability in various hydraulic systems. This valve is particularly beneficial in protecting hydrostatic drives by reducing the jerk caused by sudden reversals and can be used effectively in cross-port applications. It is not suitable for load-holding applications but excels in scenarios where remote pilot relief is necessary. With a capacity of 30 gpm (120 L/min) and a maximum operating pressure of 5000 psi (350 bar), it provides robust performance under demanding conditions. The RVETCAV incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations. Its design includes features such as protection against contamination for the main stage orifice and compatibility with small power units started against an anti-shock relief to extend pump life. Additionally, back pressure on the tank port is directly additive to the valve setting at a 1:1 ratio. With a response time typically around 2 ms and pressure ramp-up time between 200-400 ms, this valve offers reliable performance with quick reaction times. The adjustment mechanism allows for precise control with 4.5 clockwise turns needed to increase settings, ensuring ease of use in field adjustments.
Ventable, pilot-operated, anti shock relief cartridges limit maximum system pressure and also limit the rate of pressure rise. The valve opens and then ramps closed at a constant speed, independent of settings and flows. These 3 port valves include a vent port (port 3) that connects between the main piston and the pilot stage to provide for remote control by other pilot or 2-way valves. The adjust screw determines the maximum (relief) setting and the minimum (threshold) setting.
- Because the modulating occurs inside the cartridge, these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
- A remote pilot relief on port 3 (vent) will control the valve below its own setting.
- Not suitable for use in load holding applications.
- When pressure at the inlet (port 1) exceeds the threshold setting, the valve opens to tank (port 2). The pilot section moves forward at a steady rate, increasing the setting by compressing the pilot spring. Maximum setting is achieved when the pilot section reaches a mechanical stop.
- Valve provides protection for hydrostatic drives by reducing the jerk caused by sudden reversals. The valve is suitable for cross-port applications.
- When used with a switching device, the valve can provide the ramp characteristic typically provided by proportional valves.
- Small power units can be started against an anti shock relief to provide longer pump life.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- The main stage orifice is protected against contamination.
- 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-2A |
| Series | 2 |
| Capacity | 30 gpm120 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | 10 - 25 in³/min.0,16 - 0,41 L/min. |
| Response Time - Typical | 2 ms2 ms |
| U.S. Patent # | 6,039,0706,039,070 |
| Pressure Ramp Up Time | 200 - 400 ms200 - 400 ms |
| Adjustment - Number of Clockwise Turns to Increase Setting | 4.54.5 |
| 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 |
| Seal kit - Cartridge | Viton: 990-402-006 |
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Additional Resources
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- 'Soft' Relief Eliminates Pressure Spikes
- Manufacturing Sun Cartridge Cavities
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- Cavity Information (S-171) and Tooling
- 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
Notes:
- Patents are pending for this product.