SUN HYDRAULICS
RVISKBV
$542.37 USD
- SUN HYDRAULICS
- Material:RVISKBV
- Model:RVIS-KBV
- 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 RVISKBV (RVISKBV) is a ventable, pilot-operated, balanced-poppet relief cartridge valve designed for precise pressure regulation. This normally closed valve begins to open to the tank port when the inlet pressure reaches a set point, effectively throttling flow to maintain desired pressure levels. It features a vent port that allows for remote control via other pilot or 2-way valves, making it suitable for load-holding applications if the vent port is zero leak. The valve is engineered to handle maximum pressure at port 2 and is ideal for cross-port relief circuits. With a main stage orifice protected by a 150-micron stainless steel screen, it demonstrates resilience against varying oil temperatures and contamination. The RVISKBV is noted for its accuracy and low-pressure rise versus flow characteristics, offering smooth and quiet operation with moderate response speed. It incorporates Sun's floating style construction to minimize potential binding of internal parts due to excessive installation torque or machining variations in cavity/cartridge interfaces. The valve's capacity stands at 120 gpm (480 L/min), with factory pressure settings established at 4 gpm (15 L/min) and a maximum operating pressure of 5000 psi (350 bar). Control pilot flow ranges between 15-20 in\u00b3/min (0.25-0.33 L/min), with typical response times around 2 ms. Additional features include backpressure on the tank port being directly additive to the valve setting at a 1:1 ratio and minimal leakage during reseat conditions at 10 drops/min (0.7 cc/min). Installation requires specific torque settings, with adjustment capabilities provided by an internal hex screw complemented by a locknut for secure settings maintenance. The model weighs approximately 3.10 lb (1.40 kg) and utilizes Viton seals under part number 990219006 for reliable performance in demanding environments.
The Sun Hydraulics RVISKBV (RVISKBV) is a ventable, pilot-operated, balanced-poppet relief cartridge valve designed for precise pressure regulation. This normally closed valve begins to open to the tank port when the inlet pressure reaches a set point, effectively throttling flow to maintain desired pressure levels. It features a vent port that allows for remote control via other pilot or 2-way valves, making it suitable for load-holding applications if the vent port is zero leak. The valve is engineered to handle maximum pressure at port 2 and is ideal for cross-port relief circuits. With a main stage orifice protected by a 150-micron stainless steel screen, it demonstrates resilience against varying oil temperatures and contamination. The RVISKBV is noted for its accuracy and low-pressure rise versus flow characteristics, offering smooth and quiet operation with moderate response speed. It incorporates Sun's floating style construction to minimize potential binding of internal parts due to excessive installation torque or machining variations in cavity/cartridge interfaces. The valve's capacity stands at 120 gpm (480 L/min), with factory pressure settings established at 4 gpm (15 L/min) and a maximum operating pressure of 5000 psi (350 bar). Control pilot flow ranges between 15-20 in\u00b3/min (0.25-0.33 L/min), with typical response times around 2 ms. Additional features include backpressure on the tank port being directly additive to the valve setting at a 1:1 ratio and minimal leakage during reseat conditions at 10 drops/min (0.7 cc/min). Installation requires specific torque settings, with adjustment capabilities provided by an internal hex screw complemented by a locknut for secure settings maintenance. The model weighs approximately 3.10 lb (1.40 kg) and utilizes Viton seals under part number 990219006 for reliable performance in demanding environments.
Ventable, pilot-operated, balanced-poppet relief cartridges are normally closed pressure regulating valves. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to regulate the pressure. They provide a vent port (port 3) that connects between the main piston and pilot stage to provide for remote control by other pilot or 2-way valves. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast.
- Because the modulating occurs inside the cartridge, these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
- Suitable for use in load holding applications, providing that any valving on the vent port (port 3) is zero leak.
- 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.
- Valve is relatively insensitive to varying oil temperatures and oil borne contamination.
- Main stage orifice is protected by a 150 micron stainless steel screen.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- 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 |
| Maximum Valve Leakage at Reseat | 10 drops/min.0,7 cc/min. |
| 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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