SUN HYDRAULICS
RDHAQBV
$185.06 USD
- SUN HYDRAULICS
- Material:RDHAQBV
- Model:RDHA-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 RDHAQBV (RDHAQBV) is a direct-acting relief cartridge valve designed to protect hydraulic systems from pressure transients. This normally closed, pressure-limiting valve opens to tank port 2 when the inlet port 1 pressure reaches the preset level, effectively throttling flow to control pressure rise. Known for its smooth and quiet operation, the RDHAQBV is virtually leak-proof and dirt tolerant, making it immune to silting and ensuring rapid response times. The valve's design allows for maximum pressure at port 2, making it suitable for cross-port relief circuits. The adjustment of this valve requires depressurization due to system pressure exposure on the adjust screw seals; adjustments should be made by checking the setting, removing the pressure, adjusting the valve, and rechecking the new setting. The RDHAQBV is relatively insensitive to oil temperature variations and contamination, providing reliable performance in load-holding applications. It features a floating style construction that minimizes internal part binding from excessive installation torque or machining variations in cavity/cartridge setups. With a capacity of 100 gpm (380 L/min) and a maximum operating pressure of 5000 psi (350 bar), this cartridge valve demonstrates robustness in demanding applications. Its response time is typically around 2 milliseconds with a reseat capability at 90% of its setting. The valve's leakage at reseat is minimal at 10 drops/min (0.7 cc/min). For optimal performance, select a spring range where desired settings fall between midrange and high on its scale. The Sun Hydraulics RDHAQBV employs an easy-to-use adjustment mechanism with six clockwise turns required to increase settings. Its installation involves specific torque requirements: a valve hex size of 1-1/4 inches (31.8 mm) with an installation torque between 150-160 lbf-ft (203-217 Nm).
The Sun Hydraulics RDHAQBV (RDHAQBV) is a direct-acting relief cartridge valve designed to protect hydraulic systems from pressure transients. This normally closed, pressure-limiting valve opens to tank port 2 when the inlet port 1 pressure reaches the preset level, effectively throttling flow to control pressure rise. Known for its smooth and quiet operation, the RDHAQBV is virtually leak-proof and dirt tolerant, making it immune to silting and ensuring rapid response times. The valve's design allows for maximum pressure at port 2, making it suitable for cross-port relief circuits. The adjustment of this valve requires depressurization due to system pressure exposure on the adjust screw seals; adjustments should be made by checking the setting, removing the pressure, adjusting the valve, and rechecking the new setting. The RDHAQBV is relatively insensitive to oil temperature variations and contamination, providing reliable performance in load-holding applications. It features a floating style construction that minimizes internal part binding from excessive installation torque or machining variations in cavity/cartridge setups. With a capacity of 100 gpm (380 L/min) and a maximum operating pressure of 5000 psi (350 bar), this cartridge valve demonstrates robustness in demanding applications. Its response time is typically around 2 milliseconds with a reseat capability at 90% of its setting. The valve's leakage at reseat is minimal at 10 drops/min (0.7 cc/min). For optimal performance, select a spring range where desired settings fall between midrange and high on its scale. The Sun Hydraulics RDHAQBV employs an easy-to-use adjustment mechanism with six clockwise turns required to increase settings. Its installation involves specific torque requirements: a valve hex size of 1-1/4 inches (31.8 mm) with an installation torque between 150-160 lbf-ft (203-217 Nm).
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.
- 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-16A |
| Series | 3 |
| Capacity | 100 gpm380 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 | 66 |
| Valve Hex Size | 1 1/4 in.31,8 mm |
| Valve Installation Torque | 150 - 160 lbf ft203 - 217 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 | 1.30 lb0,60 kg |
| Seal kit - Cartridge | Viton: 990-316-006 |
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Notes:
- U.S. Patent #4,742,846; European Patent Pending