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DR300-450B

DR300-450B

Pressure regulators of this type protect downstream installations against excessive supply pressure. Pressure regulators are used when the capacity...

Product Description

Pressure regulators of this type protect downstream installations against excessive supply pressure. Pressure regulators are used when the capacity of direct controlled pressure reducing valves are insufficient. Their compact construction makes them particularly suitable for installation in limited spaces, for example in ducts. By using a pressure regulator, pressurization damage is avoided and water consumption reduced. The set pressure is also maintained constant, even when there is wide inlet pressure fluctuation. Reduction of the operating pressure and maintaining it at a constant level minimizes flow noise in the installation. 

Technical Properties

Approvals
  • DVGW
  • WRAS (up to 23 C)
Media

Drinking water 

DN size 450 mm
Port connection flanges ISO7005
Minimum inlet pressure 0,5 bar
Flow capacity Kvs 3150
Nominal pressure PN25
Outlet pressure 3 ... 15/19 bar
Max. media temperature 80 oC
Body material spherulitic cast iron GGG40
Body finishing powder coating
Additional Descriptions
  • High precision control during pressure variances and low flow rates 
  • High flow capacity
  • High control accuracy
  • Powder-coated inside and outside - Powder used is physiologically and toxicologically safe
  • Integral control circuit and ball valves
  • No external energy required for operation
  • Conforms to BSEN 1567
Maximum inlet pressure 25 bar
Minimum pressure drop 0,1 bar
Preset Outlet Pressure 4 bar