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Braukmann Pressure regulator, DR300

Braukmann Pressure regulator, DR300

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

  • DVGW
  • WRAS (up to 23 C)

Drinking water 

Port connection flanges ISO7005
Minimum inlet pressure 0.5 bar
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
Minimum pressure drop 0.1 bar
Preset Outlet Pressure 4 bar

Certifications and Awards


Product Type DN size
Nominal pressure
Flow capacity Kvs
Maximum inlet pressure
Flanges, PN 16, ISO 7005-2, EN 1092-2

50 mm PN16 43 16 bar

65 mm PN16 43 16 bar

80 mm PN16 103 16 bar

100 mm PN16 167 16 bar

150 mm PN16 407 16 bar

200 mm PN16 676 16 bar

250 mm PN16 1160 16 bar

300 mm PN16 1600 16 bar

350 mm PN16 2000 16 bar

400 mm PN16 3000 16 bar

450 mm PN16 3150 16 bar

Accessories and replacement parts


Image Description Product Type Downloads
Extension flange DN125 Adapter flanges DN100 to DN125 Ductile iron, PN16 acc. ISO 7005-2 and EN 1092-2. Overall length with adapter flanges (without bolts) DN125 L=416mm, DVGW approved, including bolts and nuts and the seal disc. EXF125-A  

Spare Parts

Image Description Product Type Downloads
Seal set for DN 50 0903750  
Seal set for DN 65 0903751  
Seal set for DN 80 0903752  
Seal set for DN 100 0903753  
Seal set for DN 150 0903754  
Seal set for DN 200 0903755  
Seal set for DN 250 0903756  
Seal set for DN 300 0903757  
Seal set for DN 350 0903758  
Seal set for DN 400 0903759  
Seal set for DN 450 0903760  
Replacement pilot valve for sizes DN 50 - DN 450 CX-PR