SUN HYDRAULICS
RVETCCN
$203.70 USD
Tags:
- SUN HYDRAULICS
- Material:RVETCCN
- Model:RVET-CCN
- Summary:Cartridge
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***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 RVETCCN (Material Number: RVETCCN) is a ventable, pilot-operated, anti-shock relief cartridge designed to limit both maximum system pressure and the rate of pressure rise. This 3-port valve features a vent port that facilitates remote control through other pilot or 2-way valves. The valve opens when the inlet pressure exceeds the threshold setting and ramps closed at a constant speed, independent of settings and flows, providing protection against cavitation-related issues like noise and manifold erosion. It is suitable for cross-port relief circuits and can accept maximum pressure at port 2. A remote pilot relief on the vent will control the valve below its own setting. However, it is not suitable for load-holding applications. This cartridge is particularly useful in applications requiring protection for hydrostatic drives by reducing jerks from sudden reversals and can provide ramp characteristics typically associated with proportional valves when used with a switching device. It supports small power units starting against an anti-shock relief to extend pump life. The valve's main stage orifice is protected against contamination, and it features Sun's floating style construction to minimize internal binding due to installation torque or machining variations. Key specifications include a cavity size of T-2A, series 2 capacity of 30 gpm (120 L/min), maximum operating pressure of 5000 psi (350 bar), control pilot flow between 10-25 in\u00b3/min (0.16-0.41 L/min), typical response time of 2 ms, and pressure ramp-up time between 200-400 ms. Adjustments are made via an internal hex screw with four and a half clockwise turns increasing the setting. Installation requires a torque range of 45-50 lbf ft (61-68 Nm).
The Sun Hydraulics RVETCCN (Material Number: RVETCCN) is a ventable, pilot-operated, anti-shock relief cartridge designed to limit both maximum system pressure and the rate of pressure rise. This 3-port valve features a vent port that facilitates remote control through other pilot or 2-way valves. The valve opens when the inlet pressure exceeds the threshold setting and ramps closed at a constant speed, independent of settings and flows, providing protection against cavitation-related issues like noise and manifold erosion. It is suitable for cross-port relief circuits and can accept maximum pressure at port 2. A remote pilot relief on the vent will control the valve below its own setting. However, it is not suitable for load-holding applications. This cartridge is particularly useful in applications requiring protection for hydrostatic drives by reducing jerks from sudden reversals and can provide ramp characteristics typically associated with proportional valves when used with a switching device. It supports small power units starting against an anti-shock relief to extend pump life. The valve's main stage orifice is protected against contamination, and it features Sun's floating style construction to minimize internal binding due to installation torque or machining variations. Key specifications include a cavity size of T-2A, series 2 capacity of 30 gpm (120 L/min), maximum operating pressure of 5000 psi (350 bar), control pilot flow between 10-25 in\u00b3/min (0.16-0.41 L/min), typical response time of 2 ms, and pressure ramp-up time between 200-400 ms. Adjustments are made via an internal hex screw with four and a half clockwise turns increasing the setting. Installation requires a torque range of 45-50 lbf ft (61-68 Nm).
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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- 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.