SUN HYDRAULICS
RELIEF VLV
RVGD8WN
$358.50 USD
- SUN HYDRAULICS
- Material:RVGD8WN
- Model:RVGD-8WN
- 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 RVGD8WN (RVGD8WN) is a versatile, normally closed modulating valve with an integral pilot control cavity. This valve is designed for venting, external drainage, and features a balanced piston design. It can accept any T8A pressure control cartridge, allowing it to regulate pressure by opening the modulating element to tank port 2 when inlet port 1 reaches the pilot control cartridge setting. The difference in pressure between inlet port 1 and drain port 4 is determined by the pilot cartridge's setting. Additionally, the vent port 3 enables remote control via pilot or two-way valves. The RVGD8WN is suitable for cross-port relief circuits and can handle maximum pressure at port 2. However, it is not recommended for load-holding applications due to spool leakage. The valve incorporates a main stage orifice protected by a 150-micron stainless steel screen and features Sun's floating style construction to minimize internal binding risks. Pressure at port 4 should not exceed 5000 psi (350 bar) as it adds directly to the valve setting at a 1:1 ratio. Installation requires specific torque values for both the main stage valve and the T8A pilot control valve when using the 8 control option, which integrates the pilot control directly into the relief cartridge. Cartridges configured with EPDM seals are suitable for systems using phosphate ester fluids but are incompatible with petroleum-based fluids. The RVGD8WN has a capacity of up to 60 gpm (240 L/min) and operates at a maximum pressure of 5000 psi (350 bar). It features quick response times and controlled pilot flow rates, making it an efficient choice for various hydraulic applications requiring precise pressure regulation.
The Sun Hydraulics RVGD8WN (RVGD8WN) is a versatile, normally closed modulating valve with an integral pilot control cavity. This valve is designed for venting, external drainage, and features a balanced piston design. It can accept any T8A pressure control cartridge, allowing it to regulate pressure by opening the modulating element to tank port 2 when inlet port 1 reaches the pilot control cartridge setting. The difference in pressure between inlet port 1 and drain port 4 is determined by the pilot cartridge's setting. Additionally, the vent port 3 enables remote control via pilot or two-way valves. The RVGD8WN is suitable for cross-port relief circuits and can handle maximum pressure at port 2. However, it is not recommended for load-holding applications due to spool leakage. The valve incorporates a main stage orifice protected by a 150-micron stainless steel screen and features Sun's floating style construction to minimize internal binding risks. Pressure at port 4 should not exceed 5000 psi (350 bar) as it adds directly to the valve setting at a 1:1 ratio. Installation requires specific torque values for both the main stage valve and the T8A pilot control valve when using the 8 control option, which integrates the pilot control directly into the relief cartridge. Cartridges configured with EPDM seals are suitable for systems using phosphate ester fluids but are incompatible with petroleum-based fluids. The RVGD8WN has a capacity of up to 60 gpm (240 L/min) and operates at a maximum pressure of 5000 psi (350 bar). It features quick response times and controlled pilot flow rates, making it an efficient choice for various hydraulic applications requiring precise pressure regulation.
This valve is a normally closed modulating element that incorporates an integral pilot control cavity. It is ventable, externally drained, and is a balanced piston design. The pilot control cavity will accept any T-8A pressure control cartridge. When the pressure at the inlet (port 1) reaches the pilot control cartridge setting, the modulating element starts to open to tank (port 2), throttling flow to regulate the pressure. The pilot cartridge's setting determines the difference in pressure between the inlet (port 1) and the drain (port 4). The vent port (port 3) that tees in between the main piston and pilot control cartridge, allows the modulating element to also be controlled by remote pilot or 2-way valves.
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
- 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).
- NOTE: With the -8 control option, the main stage valve should first be installed to the correct torque value. The T-8A pilot control valve should then be installed into the main stage valve to its required torque value.
- The -8 control option allows the pilot control valve to be incorporated directly into the end of the relief cartridge via the T-8A cavity. These pilot control cartridges are sold separately and include electro-proportional, solenoid, air pilot, and hydraulic pilot operation. See Pilot Control Cartridges.
- 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.
- 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-23A |
| Series | 3 |
| Capacity | 60 gpm240 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | 15 - 20 in³/min.0,25 - 0,33 L/min. |
| Response Time - Typical | 10 ms10 ms |
| Pilot Control Cavity | T-8AT-8A |
| Main stage leakage at 110 SUS (24 cSt) | 4 in³/min.@1000 psi65 cc/min.@70 bar |
| Valve Hex Size | 1 1/4 in.31,8 mm |
| Valve Installation Torque | 150 - 160 lbf ft203 - 217 Nm |
| Model Weight | 1.60 lb0,70 kg |
| Seal kit - Cartridge | Viton: 990-023-006 |
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Notes:
- Compound cartridge (pilot and main stage) assembly information is provided for reference only. Cartridges must be ordered separately and assembled at point of use.