SUN HYDRAULICS
RDDACAN
- SUN HYDRAULICS
- Material:RDDACAN
- Model:RDDA-CAN
- Summary:Cartridge
Due to extremely high demand, please call 888-905-7411 for availability
***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 RDDACAN (Material Number: RDDACAN) is a direct-acting relief cartridge designed to protect hydraulic components from pressure transients by limiting pressure rise. This normally closed, pressure-limiting valve opens to the tank port when the inlet pressure reaches the valve setting, providing smooth and quiet operation with near-zero leakage. It is dirt tolerant, immune to silting, and offers a fast response time of approximately 2 milliseconds. The valve's design allows for interchangeability with all 2-port relief cartridges, except pilot reliefs, making it suitable for various applications such as load holding and cross-port relief circuits. This model can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of 25 gpm (95 L/min). It features Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. The adjustment process requires removing system pressure before altering the setting via its internal hex screw. The RDDACAN's backpressure on the tank port is additive to the valve setting at a 1:1 ratio, and it maintains functionality across varying oil temperatures and contamination levels. The cartridge comes with Viton seals as standard, but systems using phosphate ester fluids should opt for EPDM seals due to compatibility issues with petroleum-based products. Installation specifications include a valve hex size of 7/8 inch (22.2 mm), an installation torque range of 30-35 lbf ft (41-47 Nm), and a locknut torque range of 80-90 lbf in (9-10 Nm). With its robust features and reliable performance, this relief cartridge is ideal for ensuring hydraulic system safety and efficiency.
The Sun Hydraulics RDDACAN (Material Number: RDDACAN) is a direct-acting relief cartridge designed to protect hydraulic components from pressure transients by limiting pressure rise. This normally closed, pressure-limiting valve opens to the tank port when the inlet pressure reaches the valve setting, providing smooth and quiet operation with near-zero leakage. It is dirt tolerant, immune to silting, and offers a fast response time of approximately 2 milliseconds. The valve's design allows for interchangeability with all 2-port relief cartridges, except pilot reliefs, making it suitable for various applications such as load holding and cross-port relief circuits. This model can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of 25 gpm (95 L/min). It features Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. The adjustment process requires removing system pressure before altering the setting via its internal hex screw. The RDDACAN's backpressure on the tank port is additive to the valve setting at a 1:1 ratio, and it maintains functionality across varying oil temperatures and contamination levels. The cartridge comes with Viton seals as standard, but systems using phosphate ester fluids should opt for EPDM seals due to compatibility issues with petroleum-based products. Installation specifications include a valve hex size of 7/8 inch (22.2 mm), an installation torque range of 30-35 lbf ft (41-47 Nm), and a locknut torque range of 80-90 lbf in (9-10 Nm). With its robust features and reliable performance, this relief cartridge is ideal for ensuring hydraulic system safety and efficiency.
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-10A |
| Series | 1 |
| Capacity | 25 gpm95 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 | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 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 | .30 lb0,15 kg |
| Seal kit - Cartridge | Viton: 990-310-006 |
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- Cartridges: Materials of Construction
- Fluid and Temperature Recommendations
- Performance Data
- Sun's Floating Style Screw-In Cartridge
- Units of Measure, Settings, and Conversions
- Cavity Information (S-171) and Tooling
