Ductile Iron Automatic Air Relief Valve PN16

Automatic air relief valve 

Double orifice air relief valve

Single orifice air relief valve 

Threaded single orifice air relief valve 

Standard:BS or DIN

Valve body:ductile iron

Working Pressure:PN16,PN25

Compact design:one-piece bonnet,non-rising stem.

Stem nut is separated from wedge,no seizing-up.

Flat bottom seat ring insures no ded space.

O  ring design for stem back sealing leads to maintenance-free.

Excellent corrosion protection:

Inside epoxy resin coating or vitreous enamel(upon request),outside epoxy resin coating.

Socket head cap bolts,sealed with glue on the top.

Reliable health nature:

Epoxy resin coating complies with the GB/T17219.

Wedge bonded with rubber for the health inspection.

Trims are made of stainless steel or bronze.

Scope of application:

Potable water supply,industrial fields.

Design standard:BS5163
Flange:EN1092
Face to face dimensios:BS5163
Test standard:BS5163
Work temperature: 80  120
    

NUM Name Meterial
1   Body   Ductile Iron
2   Wedge   Ductile Iron+EPDM
3   Stem nut   Brass
4   Stem   Stainless steel
5   Middle end seat ring   NBR
6   Bonnet   Ductile Iron
7   Back seat Gasket   Nilon 1010
8   "O" Ring   NBR
9   Gland   Ductile Iron                                   

10   Handwheel   Cast Iron

PACKING:Plywood,One Plywood Sizes: 1000*1000*1000   

One Container: 20 Square Inch 720 PIC