Origin	China
Brand Name	gate valve

Non-maintance design, inside and outside electrostatic epoxy resin power coating, the valves can be installed under th eground directly.

The valves adopts the back seal and the stem seal, those double seals can avoid any top leakage when installation.

The customers can easily replace the top seal O rings under the pressure.

The valves adopt flat bottem designing ensures no dead space and very little flow resistance.

The wedge adopts bidirectional groove design ensures the best reliable seal.

A set of seal pressure angle adopts gradual design.

The pressured surface of stem adopts high strength self-lubricated materials, the valves can be opened and closed easily.

The bonnet,body castings adopts equal thickness design to avoid the outside leakage by the stess function.

Standard:DIN3352-4A/4B DIN3202  F4/F5 DIN3230

BS5163 BS5163 BS5163

 PARTS MATERIAL 

 1  Body  GGG

 2  Wedge  GGG bonded with NBR or EPDM

 3  Stem  2Cr13

 4  Stem nut  ZCuA110Fe3

 5  Middle gasket  NBR or EPDM

 6  Bonnet  GGG

 7  Bolt  Q235-A

 8  Lubricant gasket  PTFE

 9  O-ring  NBR or EPDM

 10  O-ring  NBR or EPDM

 11  Seal bush  POM

 12  Seal cover  2Cr13 or 304

 13  Dustproof cover  NBR or EPDM

 14  Top cover  Pa-66

 15  Hand wheel  Sg-12

 16  Screw  Cr13

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