SUN HYDRAULICS
RDHAQAN
$178.60 USD
- SUN HYDRAULICS
- Material:RDHAQAN
- Model:RDHA-QAN
- 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 RDHAQAN (Material Number: RDHAQAN) is a direct-acting relief cartridge valve designed to protect hydraulic components from pressure transients. This normally closed, pressure-limiting valve opens to the tank port when the inlet port pressure reaches the valve setting, effectively throttling flow to limit pressure rise. Known for its smooth and quiet operation, this valve is essentially zero leak, dirt tolerant, and immune to silting with a rapid response time of approximately 2 ms. It is suitable for use in load holding applications and can handle maximum pressures at port 2, making it ideal for cross-port relief circuits. The RDHAQAN model features Sun's floating style construction to minimize internal parts binding due to excessive installation torque or cavity/cartridge machining variations. It has a maximum operating pressure of 5000 psi (350 bar) and a capacity of 100 gpm (380 L/min). The reseat percentage is 90% of the setting with a maximum valve leakage at reseat of 10 drops/min (0.7 cc/min). The adjustment procedure requires removing system pressure before making changes due to seals on the adjust screw being exposed to system pressure. Installation specifications include a valve hex size of 1 1/4 inches (31.8 mm) and an installation torque between 150 - 160 lbf ft (203 - 217 Nm). The adjustment screw has an internal hex size of 5/32 inches (4 mm), while the locknut has a hex size of 9/16 inches (15 mm) with a locknut torque range of 80 - 90 lbf in (9 -10 Nm). The product weighs approximately 1.30 lb (0.60 kg), and it is compatible with Viton seal kits under part number: 990316006. Select this relief cartridge when seeking reliability in varying oil temperatures and contamination conditions.
The Sun Hydraulics RDHAQAN (Material Number: RDHAQAN) is a direct-acting relief cartridge valve designed to protect hydraulic components from pressure transients. This normally closed, pressure-limiting valve opens to the tank port when the inlet port pressure reaches the valve setting, effectively throttling flow to limit pressure rise. Known for its smooth and quiet operation, this valve is essentially zero leak, dirt tolerant, and immune to silting with a rapid response time of approximately 2 ms. It is suitable for use in load holding applications and can handle maximum pressures at port 2, making it ideal for cross-port relief circuits. The RDHAQAN model features Sun's floating style construction to minimize internal parts binding due to excessive installation torque or cavity/cartridge machining variations. It has a maximum operating pressure of 5000 psi (350 bar) and a capacity of 100 gpm (380 L/min). The reseat percentage is 90% of the setting with a maximum valve leakage at reseat of 10 drops/min (0.7 cc/min). The adjustment procedure requires removing system pressure before making changes due to seals on the adjust screw being exposed to system pressure. Installation specifications include a valve hex size of 1 1/4 inches (31.8 mm) and an installation torque between 150 - 160 lbf ft (203 - 217 Nm). The adjustment screw has an internal hex size of 5/32 inches (4 mm), while the locknut has a hex size of 9/16 inches (15 mm) with a locknut torque range of 80 - 90 lbf in (9 -10 Nm). The product weighs approximately 1.30 lb (0.60 kg), and it is compatible with Viton seal kits under part number: 990316006. Select this relief cartridge when seeking reliability in varying oil temperatures and contamination conditions.
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