RELIEF VALVE BAYARD DN50


Description

  • For general information concerning the operation of a hydrobloc control valve, please consult our general manual ( series K ).
  • Extensive range including two different design:
    – XG design:
    – Large flow capacity
    – Low head loss
    – Watertight at zero flow rate
    – XGS design:
    – Particularly suitable for pressure reduction
    – Better cavitation resistance
    – Watertight at zero flow rate

Construction

  • Self-lubricated double guided mobile unit
  • Ductile iron body and bonnet
  • Stainless steel seat for standard version until DN 400 XG design and DN 600 XGS design.
  • Powder epoxy coating
  • Stainless steel bolting
  • Stainless steel pilot circuit tube and fittings
  • Pilot circuit strainer with screen in stainless steel.
  • Individually packed

Easy Operation and maintenance

  • Visual position indicator with manual drain.
  • Including isolating valve (s) for pressure gauges.
  • Equipped with opening speed controller “RO” ( DN50 o 300 XG design, and DN 150 to 400 XGS design only ).
  • Chamber isolating valve independent from the adjustment of the speed controller.
  • Maintenance without disassembly from the pipeline.
  • Easy dismantling from the top.
  • Drain plug ( stainless steel ).

Product according to standard EN 1074-5.

Technical Data

  • Range for XG design
  • PN 25
  • Maximum temperature +10C to 650C
  • Seating: class A according to standard ISO 5208-2.
  • Face to face dimensions according to standards EN 558-1 series 1 ( except DN1000 ) and ISO 5752 series 1 ( except DN 1000 )
  • Flange drilling according to standards EN 1092-2 and ISO 7005-2: ISO PN 10,16 or 25 for DN 50 to 1000 ( other drillings, please consult us ).
  • Fluid: drinking water or 2 mm filtered untreated water.
  • Working pressure 25 bar
  • Vertical & Horizontal installation
  • The valve body of PN 16 and PN 25 are the same, the difference are flange drilling and pilot circuit

Specifications

  • XG design:
    – B : 173 mm
    – C : 238 mm
    – D : 84.5 mm
    – Weight : 14.7 kg

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