PRESSURE RELIEF VALVE BAYARD Control valve enabling to maintain a minimum upstream pressure, by either sustaining or relieving excess pressure to the downstream side.

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.

APPLICATIONS :

• To regulate multi pressure level network.
• To supply water to a flow pressure level network from a high pressure level network.
• To protect a device, private consumers installations, or sections of the network against excessive pressure and high upstream pressure variations,
• To reduce leakage thanks to the control of the supplying pressure,
• To save water consumption by a reduction in pressure

FUNCTIONS

• Reduces and stabilises a higher inlet pressure to a steady lower downstream pressure regardless of variations of flow and/or inlet pressure.
• Close/ open and puts into regulation with hand

TECHNICAL DATA PRESSURE RELIEF VALVE BAYARD :

• Range :
  • DN 50 t0 600 for XG design.
  • DN 150 to for XGS design.
  • DN 800 to 100 XG and XGS design, please consult us.

• PN 25.
• Maximum temperature: +1⁰C to+65⁰C
• Seating : class A according to standards ISO 5208-2
• Face-to-face dimensions according to standard EN 558-1 SERIES 1 ( Expect DN1000 ) And ISO5752
  series 1 ( Expect DN1000 )
• Flange drilling according to standard 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 installation.
• The valve body of PN 16 and PN25 are the same, the difference are on flange drilling and plot circuit.