Relief Valve Bayard DN 250

sriayumultikreasi BAYARD February 22, 2022

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 controller “RO” (DN50 to 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 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 DN1000 ) and ISO 5752 series 1 (except DN1000).
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 PN 25 are the same, the difference are on flange drilling and pilot circuit.

Specifications