SUN HYDRAULICS
RVETLAN
$192.70 USD
Tags:
- SUN HYDRAULICS
- Material:RVETLAN
- Model:RVET-LAN
- 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 RVETLAN (Material Number: RVETLAN) is a ventable, pilot-operated, anti-shock relief cartridge designed to limit maximum system pressure and control the rate of pressure rise. This three-port valve features a vent port that allows for remote control by other pilot or two-way valves. The adjust screw facilitates setting the maximum relief and minimum threshold settings, offering precise control over system pressure. Notably, the modulating action occurs internally within the cartridge, making it resistant to issues like cavitation-induced noise and manifold erosion. This valve is capable of accepting maximum pressure at port 2, making it suitable for cross-port relief circuits but not for load-holding applications. When inlet port 1's pressure surpasses the threshold setting, the valve opens to tank port 2. The pilot section advances steadily, compressing the pilot spring until a mechanical stop achieves maximum setting. It protects hydrostatic drives by mitigating jerks during sudden reversals and can impart ramp characteristics typically provided by proportional valves when used with a switching device. Additionally, small power units can start against an anti-shock relief to extend pump life. The RVETLAN incorporates Sun's floating style construction to reduce internal binding due to installation torque or machining variations. It features a cavity T-2A with a series 2 capacity of 30 gpm (120 L/min) and operates at pressures up to 5000 psi (350 bar). The control pilot flow ranges from 10-25 in\u00b3/min (0.16-0.41 L/min), with a typical response time of 2 ms and a pressure ramp-up time between 200-400 ms. Adjustments are made via clockwise turns on the adjust screw, housed within specific hex sizes for ease of installation and maintenance.
The Sun Hydraulics RVETLAN (Material Number: RVETLAN) is a ventable, pilot-operated, anti-shock relief cartridge designed to limit maximum system pressure and control the rate of pressure rise. This three-port valve features a vent port that allows for remote control by other pilot or two-way valves. The adjust screw facilitates setting the maximum relief and minimum threshold settings, offering precise control over system pressure. Notably, the modulating action occurs internally within the cartridge, making it resistant to issues like cavitation-induced noise and manifold erosion. This valve is capable of accepting maximum pressure at port 2, making it suitable for cross-port relief circuits but not for load-holding applications. When inlet port 1's pressure surpasses the threshold setting, the valve opens to tank port 2. The pilot section advances steadily, compressing the pilot spring until a mechanical stop achieves maximum setting. It protects hydrostatic drives by mitigating jerks during sudden reversals and can impart ramp characteristics typically provided by proportional valves when used with a switching device. Additionally, small power units can start against an anti-shock relief to extend pump life. The RVETLAN incorporates Sun's floating style construction to reduce internal binding due to installation torque or machining variations. It features a cavity T-2A with a series 2 capacity of 30 gpm (120 L/min) and operates at pressures up to 5000 psi (350 bar). The control pilot flow ranges from 10-25 in\u00b3/min (0.16-0.41 L/min), with a typical response time of 2 ms and a pressure ramp-up time between 200-400 ms. Adjustments are made via clockwise turns on the adjust screw, housed within specific hex sizes for ease of installation and maintenance.
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.