SUN HYDRAULICS
RELIEF CART
RVIALBN
$477.90 USD
- SUN HYDRAULICS
- Material:RVIALBN
- Model:RVIA-LBN
- Summary:Cartridge
Quantity in stock: 6
***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 RVIALBN (RVIALBN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve remains normally closed, opening to tank port 2 when the inlet port 1 reaches the set pressure, thereby throttling flow to maintain desired pressure levels. It features a vent port 3 for remote control via other pilot or two-way valves. Known for its accuracy and low-pressure rise versus flow characteristics, this relief valve operates smoothly and quietly with moderate speed. The RVIALBN can handle maximum pressure at port 2, making it suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen, and it\u2019s crucial that the relief valve setting always exceeds that of the pilot valve setting. This model is not recommended for load-holding applications due to potential spool leakage. Cartridges equipped with EPDM seals are intended for systems using phosphate ester fluids and should not be exposed to petroleum-based fluids as they may cause seal damage. The Sun floating style construction minimizes internal part binding risks due to excessive installation torque or cavity/cartridge machining variations. This valve fits into Cavity T-19A and belongs to Series 4 with a capacity of up to 120 gpm (480 L/min). It operates at a maximum pressure of 5000 psi (350 bar), with control pilot flow ranging from 15-20 in\u00b3/min (0.25-0.33 L/min) and a typical response time of about 10 ms. The maximum allowable valve leakage is 5 in\u00b3/min at 110 SUS (24 cSt) under conditions of up to 1000 psi (70 bar). Installation requires specific torques for various components, ensuring secure integration into hydraulic systems.
The Sun Hydraulics RVIALBN (RVIALBN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve remains normally closed, opening to tank port 2 when the inlet port 1 reaches the set pressure, thereby throttling flow to maintain desired pressure levels. It features a vent port 3 for remote control via other pilot or two-way valves. Known for its accuracy and low-pressure rise versus flow characteristics, this relief valve operates smoothly and quietly with moderate speed. The RVIALBN can handle maximum pressure at port 2, making it suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen, and it\u2019s crucial that the relief valve setting always exceeds that of the pilot valve setting. This model is not recommended for load-holding applications due to potential spool leakage. Cartridges equipped with EPDM seals are intended for systems using phosphate ester fluids and should not be exposed to petroleum-based fluids as they may cause seal damage. The Sun floating style construction minimizes internal part binding risks due to excessive installation torque or cavity/cartridge machining variations. This valve fits into Cavity T-19A and belongs to Series 4 with a capacity of up to 120 gpm (480 L/min). It operates at a maximum pressure of 5000 psi (350 bar), with control pilot flow ranging from 15-20 in\u00b3/min (0.25-0.33 L/min) and a typical response time of about 10 ms. The maximum allowable valve leakage is 5 in\u00b3/min at 110 SUS (24 cSt) under conditions of up to 1000 psi (70 bar). Installation requires specific torques for various components, ensuring secure integration into hydraulic systems.
Ventable, pilot-operated, balanced piston 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.
- A remote pilot relief on port 3 (vent) will control the valve below its own setting.
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.
- Main stage orifice is protected by a 150 micron stainless steel screen.
- Relief valve setting must always be higher than pilot valve setting.
- Not suitable for use in load holding applications due to spool leakage.
- 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-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 | 10 ms10 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 5 in³/min.@1000 psi80 cc/min.@70 bar |
| 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: 990-019-006 |
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