Bieri

Válvula redutora de pressão 500

Type DMM NG 4 up to 30 l/min

Features

• Leakage free
• With spring chamber relief
• Long economic lifetime

Design

• Seated valve
• Directly operated
• Cartridge type and in manifold
• External surface zinc-coated
• With optional check valve
• With optional secundary relief valve against overload

Applications

The pressure reducing valve DMM is a part of the 500+ series. It is directly operated, spring loaded and designed with a leakage free seat. It
holds the hydraulic pressure at working port A on a constant value, independently on the flow rate – respectively pressure changes at supply port P. The working port can be optionally protected with a separate pressure relief valve.

Technical Data

Hydraulic fluid Mineral oil according to DIN 51524 T1+T2 (other fluids on request)

Fluid temperature range -20 to 120 °C

Ambient temperature range -20 to 120 °C

Viscosity range 10 to 420 mm2/s

Porting NG 4

Max. operating pressure port P/A 700/450 bar

Pressure setting port A 50 to 450 bar

Pressure setting range of the optional pressure protection 50 to 500 bar

Max. flow rate 30 l/min

Weight 0.9 kg (cartridge)

Materials

  • Cartridge body: high tensile steel
  • Cone: hardened steel
  • Supporting ring: PTFE

 

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