SUN HYDRAULICS
RDJACCV
$410.03 USD
- SUN HYDRAULICS
- Material:RDJACCV
- Model:RDJA-CCV
- 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 RDJACCV (Material Number: RDJACCV) is a direct-acting relief cartridge valve designed to protect hydraulic systems from pressure transients. This normally closed, pressure-limiting valve opens when the inlet port pressure reaches the set threshold, diverting flow to the tank port and controlling pressure rise. Notable for its smooth and quiet operation, this valve is essentially zero leak, dirt tolerant, immune to silting, and has rapid response times. It is designed for interchangeability across all 2-port relief cartridges except pilot reliefs, sharing the same flow path and cavity size for a given frame size. The RDJACCV can handle maximum pressure at port 2 and is suitable for cross-port relief circuits and load-holding applications. The valve's adjustment screw seals are exposed to system pressure; therefore, adjustments must be made with the system depressurized. It's recommended to select a spring range where the desired setting falls between midrange and maximum pressures to ensure repeatability. Backpressure on the tank port adds directly to the valve setting at a 1:1 ratio. Cartridges with EPDM seals are compatible with phosphate ester fluids but incompatible with petroleum-based fluids. Constructed using Sun's floating style design, this model minimizes binding risks due to installation torque or machining variations. With a capacity of 200 gpm (760 L/min) and maximum operating pressure of 5000 psi (350 bar), it offers a typical response time of 2 ms and minimal leakage upon reseat. The RDJACCV weighs 3.30 lb (1.50 kg) and includes specifications such as a hex size of 1-5/8 inches (41.3 mm) for installation torque between 350-375 lbf ft (474-508 Nm).
The Sun Hydraulics RDJACCV (Material Number: RDJACCV) is a direct-acting relief cartridge valve designed to protect hydraulic systems from pressure transients. This normally closed, pressure-limiting valve opens when the inlet port pressure reaches the set threshold, diverting flow to the tank port and controlling pressure rise. Notable for its smooth and quiet operation, this valve is essentially zero leak, dirt tolerant, immune to silting, and has rapid response times. It is designed for interchangeability across all 2-port relief cartridges except pilot reliefs, sharing the same flow path and cavity size for a given frame size. The RDJACCV can handle maximum pressure at port 2 and is suitable for cross-port relief circuits and load-holding applications. The valve's adjustment screw seals are exposed to system pressure; therefore, adjustments must be made with the system depressurized. It's recommended to select a spring range where the desired setting falls between midrange and maximum pressures to ensure repeatability. Backpressure on the tank port adds directly to the valve setting at a 1:1 ratio. Cartridges with EPDM seals are compatible with phosphate ester fluids but incompatible with petroleum-based fluids. Constructed using Sun's floating style design, this model minimizes binding risks due to installation torque or machining variations. With a capacity of 200 gpm (760 L/min) and maximum operating pressure of 5000 psi (350 bar), it offers a typical response time of 2 ms and minimal leakage upon reseat. The RDJACCV weighs 3.30 lb (1.50 kg) and includes specifications such as a hex size of 1-5/8 inches (41.3 mm) for installation torque between 350-375 lbf ft (474-508 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.
- 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