Pressure Reducing Cartridge Valve DDRA-7L
Zawór redukcyjny nabojowy DDRA-7L Bucher
Pressure reducing cartridge valves

Pressure Reducing Cartridge Valve DDRA-7L

Pressure [bar]


Flow rate [L/min]


Series DDRA-7L… screw-in cartridges are size 10, high performance 3-way pressure-reducing valves with an M27x2 mounting thread. They are direct acting and have a spool-type design. The straightforward design delivers an outstanding price/performance ratio and good pressure/ flow ratings. The valves control the required secondary pressure in port 1 to the value set with the pressure adjustment, and independently of the inlet pressure in port 2. In control mode, the connection 2→ 1 opens until the pressure in port 1 reaches the preset level. If the pressure rises above the preset level, the control spool opens the 1 → 3 connection until balance is restored. These 3-way pressure-reducing cartridges function as full-flow pressure relief valves from port 1 → 3 as soon as the reduced pressure rises above the valve pressure setting.

  • Compact construction for cavity type DL to ISO 7789-27-04-0-07
  • 5 pressure ranges available
  • Full-flow secondary pressure relief
  • Excellent stability over the whole pressure and flow range
  • All exposed parts with zinc-nickel plating
  • Can be fitted in a line-mounting body
  • Can be fitted in sandwich bodies
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