High Quailty Ductile Iron F4 gate valves 

Flat bottom seat ring integral with the body,inside and outside epoxy resin coating,wedge wholly bonded with rubber, three “o” ring sealing,these all insure excellent corrosion protection and reliable sealing capability.Upon request,the gate valves can be actuated by operating lever,hand wheel,electrical actuator and so on.

Unique Design:

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:DIN3352 BS5163
Flange:DIN 2501 EN1092
Face to face dimensios:DIN3352 BS5163
Test standard:DIN3352 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