PRV BAYARD SIZE 8 INCH


Description

  • For general information concerning the operation of a Hydrobloc control valve, please consult our general manual ( series K )
  • Extensive range including two different designs:
    – 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 cpntroller “RO” (DN50 to 300 XG design and DN150 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 DN 200 For XG design and XGS 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 DN 1000 ) 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 DN50 to 1000 ( other drillings, please consult us ).
  • Fluid: drinking water or 2 mm filtered untreated water.
  • Working Pressure 25 Bar.
  • Vertical & Horizontal intallation
  • The valve body of PN 16 and PN25 are the same, the difference are on flange drilling and pilot circuit

Specifications

  • XGS design:
    – B : 351 mm
    – C : 443 mm
    – D : 182 mm
    – Weight : 81.9 kg
  • XGS design:
    – B : 436 mm
    – C : 567 mm
    – D : 182 mm
    –Weight : 117.6 kg

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