Открытый Пожарный гидрант

outdoor overground Hydrant Features l Ductile iron body and seat for high strength and impact resistance . l Dezincification resistant DR copper alloy dome for long life operation . l Extra thick seat gaskets to provide improved perforation resistance and reduce maintenance requirements . l Grade 316 stainless steel fasteners for long life operation . Epoxy Resin Coating for corrosion protection. General Application Crash proof and Burglar proof ground fire hydrant provide access to water pipelines for fire fighting purposes , In the event that a Crash proof and Burglar proof ground fire hydrant is damaged or broken, although damage occurs to the hydrants safety bolts, but the valves will still close there will be no water leakage and therefore nearby residents will be unaffected ,and other hydrants in this area will continue to be in use ,as this will not influence water flow and so this type of hydrant will be sure to bring good social and economical benefits. During maintenance work repairs can be carried out under high pressure and only eight bolts are needed. Technical Date Allowable Operating Pressure : 1.6 Mpa Seat Infiltration Resistance : 1.0 Mpa Maximum Temperature : 40 Centigrade End Connections : Flanged to GB4452-1996 Parts List No. Description Material Standard 1 Body Ductile iron GB 9439 2 Seat Ductile iron GB 9439 3 Stem Stainless Steel 316 4 Dome DR Copper Alloy GB 1176 5 Bolt Stainless Steel 316 6 Nut Stainless Steel 316 7 Washer Stainless Steel 316 8 Gasket EPDM Rubber 9 Red Dust Cap UV Stabilised Polyethylene 10 Fusion Coating Epoxy Resin Coating GB 4552-1996