Válvula de borboleta 500

Type SDM NG 4 up to 25 l/min


  • High-precision control
  • Adjustable while under pressure
  • Bi-directional flow


  • Cartridge alone or in manifolds
  • External surface stainless
  • The valve setting can be locked by a counter nut


The throttle valve SDM is a part of the 500+ series. It is a directly and manually operated cartridge valve. Adjustable throttle valves are used for the adjustment of flow rates. The moving speed of a cylinder or motor can be influenced by these valves.

Technical Data

Hydraulic fluid mineral oil according to DIN 51524 (other fluids on request)

Fluid temperature range -20 to 80 °C

Ambient temperature range -20 to 80 °C

Viscosity range 5 to 420 mm2/s

Porting NG 4

Max. operating pressure port 1 700 bar

Max. operating pressure port 2 700 bar

Pressure loss at 12 l/min (fully open) and 32 mm2/s: 35 bar

at 25 l/min (fully open) and 32 mm2/s: 155 bar

Max. flow rate 25 l/min-

Filtration class 17/15/12 ISO/DIN 4406

Weight 0,12 kg (cartridge)