SUN HYDRAULICS
RDJAQBV
$405.06 USD
- SUN HYDRAULICS
- Material:RDJAQBV
- Model:RDJA-QBV
- 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 RDJAQBV (RDJAQBV) is a direct-acting relief cartridge designed to protect hydraulic components from pressure transients. This normally closed, pressure-limiting valve opens to tank port 2 upon reaching the set pressure at inlet port 1, effectively throttling flow to control pressure rise. Notably smooth and quiet in operation, the valve features zero leakage and is highly dirt-tolerant and resistant to silting. Its fast response time of approximately 2 ms makes it suitable for applications requiring quick action. The RDJAQBV can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of up to 200 gpm (760 L/min). It is interchangeable with other two-port relief cartridges in the same frame size, making it versatile for various hydraulic systems. This valve is ideal for load-holding applications due to its ability to accept maximum pressure at port 2, making it suitable for cross-port relief circuits. The valve's seals on the adjust screw are exposed to system pressure; thus, adjustments should be made only when the system is depressurized. It performs reliably across varying oil temperatures and contaminations. For optimal repeatability, select a spring range where the desired relief setting is midrange or higher within its limits. The RDJAQBV incorporates Sun's floating style construction, minimizing risks of internal binding due to installation torque or machining variations. Cartridges with EPDM seals are compatible with phosphate ester fluids but should avoid petroleum-based substances as they can damage the seals. The model weighs approximately 3.30 lb (1.50 kg), requires a specific installation torque range, and comes with an adjustment screw internal hex size of 5/32 inch (4 mm).
The Sun Hydraulics RDJAQBV (RDJAQBV) is a direct-acting relief cartridge designed to protect hydraulic components from pressure transients. This normally closed, pressure-limiting valve opens to tank port 2 upon reaching the set pressure at inlet port 1, effectively throttling flow to control pressure rise. Notably smooth and quiet in operation, the valve features zero leakage and is highly dirt-tolerant and resistant to silting. Its fast response time of approximately 2 ms makes it suitable for applications requiring quick action. The RDJAQBV can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of up to 200 gpm (760 L/min). It is interchangeable with other two-port relief cartridges in the same frame size, making it versatile for various hydraulic systems. This valve is ideal for load-holding applications due to its ability to accept maximum pressure at port 2, making it suitable for cross-port relief circuits. The valve's seals on the adjust screw are exposed to system pressure; thus, adjustments should be made only when the system is depressurized. It performs reliably across varying oil temperatures and contaminations. For optimal repeatability, select a spring range where the desired relief setting is midrange or higher within its limits. The RDJAQBV incorporates Sun's floating style construction, minimizing risks of internal binding due to installation torque or machining variations. Cartridges with EPDM seals are compatible with phosphate ester fluids but should avoid petroleum-based substances as they can damage the seals. The model weighs approximately 3.30 lb (1.50 kg), requires a specific installation torque range, and comes with an adjustment screw internal hex size of 5/32 inch (4 mm).
Direct-acting relief cartridges are normally closed, pressure-limiting valves used to protect hydraulic components from pressure transients. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to limit the pressure rise. These valves are smooth and quiet, essentially zero leak, dirt tolerant, immune to silting and are very fast.
- All 2-port relief cartridges (except pilot reliefs) are physically and functionally interchangeable (same flow path, same cavity for a given frame size).
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
- The seals on the adjust screw are exposed to system pressure which means this valve can only be adjusted when the pressure is removed. The setting procedure is; check the setting, remove the pressure, adjust the valve, check the new setting.
- Valve is relatively insensitive to varying oil temperatures and oil borne contamination.
- Select a spring range where the desired relief setting is approximately mid-range to high between the minimum and maximum pressure to ensure maximum valve repeatability.
- Suitable for use in load holding applications.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- 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-18A |
| Series | 4 |
| Capacity | 200 gpm760 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 2 ms2 ms |
| Maximum Valve Leakage at Reseat | 10 drops/min.0,7 cc/min. |
| Reseat | >90% of setting>90% of setting |
| 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 | 3.30 lb1,50 kg |
| Seal kit - Cartridge | Viton: 990-318-006 |
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- Pressure Relief and Regulating Valves
- Manufacturing Sun Cartridge Cavities
- Performance Data
- Sun's Floating Style Screw-In Cartridge
- Units of Measure, Settings, and Conversions
- Cavity Information (S-171) and Tooling
- Sun Model Code Explanation; 999-901-334
- Cartridges: Materials of Construction
- Fluid and Temperature Recommendations
Notes:
- U.S. Patent #4,742,846; European Patent Pending