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SUN HYDRAULICS
RDDA3DV


$67.31 USD
  • SUN HYDRAULICS
  • Material:RDDA3DV
  • Summary:Cartridge

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***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 RDDA3DV (Material Number: RDDA3DV) is a non-adjustable direct-acting relief cartridge designed to provide pressure-limiting protection for hydraulic components against pressure transients. This normally closed valve opens to the tank port when the inlet pressure reaches the valve setting, effectively throttling flow to limit any further pressure increase. Known for its smooth and quiet operation, the RDDA3DV is essentially zero leak, dirt tolerant, immune to silting, and offers rapid response times. It is factory set and tamper-proof, requiring customers to specify their desired settings at the time of order. The valve is suitable for use in cross-port relief circuits and load-holding applications due to its ability to handle maximum pressure at port 2. It maintains performance consistency despite variations in oil temperature and contamination levels. The design incorporates Sun's floating style construction, minimizing risks of internal binding due to installation torque or machining variations. With a capacity of 25 gpm (95 L/min) and a maximum operating pressure of 5000 psi (350 bar), this cartridge offers reliable performance in demanding environments. Its response time is typically around 2 milliseconds with a reseat percentage of 90% of the setting. The valve hex size measures 7/8 inches (22.2 mm), with an installation torque range between 30 - 35 lbf ft (41 - 47 Nm). Weighing approximately .30 lb (.15 kg), it also features Viton seals available under seal kit number 990310006 for enhanced durability.

Non-adjustable 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.

  • Customer must specfy setting. The valve will be factory set and is tamper proof.
  • Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
  • 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.
  • All 2-port relief cartridges (except pilot reliefs) are physically and functionally interchangeable (same flow path, same cavity for a given frame size).
  • 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.
CavityT-10A
Series1
Capacity25 gpm95 L/min.
Factory Pressure Settings Established at4 gpm15 L/min.
Maximum Operating Pressure5000 psi350 bar
Response Time - Typical2 ms2 ms
Maximum Valve Leakage at Reseat10 drops/min.0,7 cc/min.
Reseat>90% of setting>90% of setting
Valve Hex Size7/8 in.22,2 mm
Valve Installation Torque30 - 35 lbf ft41 - 47 Nm
Model Weight.30 lb0,15 kg
Seal kit - CartridgeViton: 990-310-006

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