SUN HYDRAULICS
RVITLWV
$806.55 USD
- SUN HYDRAULICS
- Material:RVITLWV
- Model:RVIT-LWV
- 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 RVITLWV (RVITLWV) 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 includes a vent port that allows for remote control by other pilot or two-way valves. The adjustable screw sets both the maximum relief and minimum threshold settings, making it versatile for various hydraulic applications. The valve operates by opening when the inlet pressure exceeds the threshold, then ramps closed at a constant speed. It is immune to cavitation-related issues such as noise and manifold erosion due to its internal modulating mechanism. This cartridge accepts maximum pressure at port 2 and is suitable for cross-port relief circuits but not recommended for load-holding applications. It provides protection in hydrostatic drives by reducing jerk from sudden reversals and can be used in conjunction with switching devices to replicate ramp characteristics typical of proportional valves. The RVITLWV supports small power unit startups against anti-shock reliefs, enhancing pump lifespan. Backpressure on tank port 2 directly influences valve setting at a 1:1 ratio. Key specifications include a cavity T-19A series 4 with a capacity of 120 gpm (480 L/min), maximum operating pressure of 5000 psi (350 bar), and control pilot flow between 15-20 in\u00b3/min (0.25-0.33 L/min). The typical response time is around 2 ms, with pressure ramp-up time ranging from 400-850 ms. Installation requires specific torques: valve installation torque is between 350-375 lbf ft (474-508 Nm), adjustment screw internal hex size is ^5/32 inch (4 mm), locknut hex size is ^9/16 inch (15 mm), and locknut torque ranges from 80-90 lbf in (9-10 Nm). The model weighs approximately 3.10 lb (1.40 kg) and incorporates Sun\u2019s floating style construction to minimize internal binding risks due to installation or machining variations.
The Sun Hydraulics RVITLWV (RVITLWV) 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 includes a vent port that allows for remote control by other pilot or two-way valves. The adjustable screw sets both the maximum relief and minimum threshold settings, making it versatile for various hydraulic applications. The valve operates by opening when the inlet pressure exceeds the threshold, then ramps closed at a constant speed. It is immune to cavitation-related issues such as noise and manifold erosion due to its internal modulating mechanism. This cartridge accepts maximum pressure at port 2 and is suitable for cross-port relief circuits but not recommended for load-holding applications. It provides protection in hydrostatic drives by reducing jerk from sudden reversals and can be used in conjunction with switching devices to replicate ramp characteristics typical of proportional valves. The RVITLWV supports small power unit startups against anti-shock reliefs, enhancing pump lifespan. Backpressure on tank port 2 directly influences valve setting at a 1:1 ratio. Key specifications include a cavity T-19A series 4 with a capacity of 120 gpm (480 L/min), maximum operating pressure of 5000 psi (350 bar), and control pilot flow between 15-20 in\u00b3/min (0.25-0.33 L/min). The typical response time is around 2 ms, with pressure ramp-up time ranging from 400-850 ms. Installation requires specific torques: valve installation torque is between 350-375 lbf ft (474-508 Nm), adjustment screw internal hex size is ^5/32 inch (4 mm), locknut hex size is ^9/16 inch (15 mm), and locknut torque ranges from 80-90 lbf in (9-10 Nm). The model weighs approximately 3.10 lb (1.40 kg) and incorporates Sun\u2019s floating style construction to minimize internal binding risks due to installation or machining variations.
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-19A |
| Series | 4 |
| Capacity | 120 gpm480 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | 15 - 20 in³/min.0,25 - 0,33 L/min. |
| Response Time - Typical | 2 ms2 ms |
| Pressure Ramp Up Time | 400 - 850 ms400 - 850 ms |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 1 5/8 in.41,3 mm |
| Valve Installation Torque | 350 - 375 lbf ft474 - 508 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 | 3.10 lb1,40 kg |
| Seal kit - Cartridge | Viton: 990-219-006 |
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