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Butterfly Valve GGEV


GGEV Model Schedule Illustration

Valve type code: D-Butterfly Valve

Driving manner code: 3—Worm wheel and screw transmission 6—Air driving 9—Electric driving (Hand wheel driving omitted)

Connecting type code: 1—Flange connecting 6—Welded connection 8—Water type connecting 

Design feature code: 2—Single eccentric structure3—Double eccentric structure4—Veriable eccentric structure5—Three eccentric structure

Sealing formation code: X—RubberF—polytetrafluoroethyleneH—Alloy steelW—Stainless steel bodyY—Hard alloy

Pressure grade code: The 10 times of the nominal pressure MPa, pound grade io practical number.

Body material code: Z—HTZOOC—WCBP—CFBtZG1Cr18Ni9TiR—CFBM,ZG1Cr18Ni12M02Ti


Note: Denotes1.6Mpa nominal rating pressure, worm wheel and screw transmission, flange—connecting, double eccentric structure, CF8 valve material, and hard alloy sealing material.

 

Products Design Features

The series of the butterfly valves can be applied to food, drink, medicine, chemical industry, industrial environmental protection water treatment, high building, water supply, drainage and gas, etc. Used to start or stop or adjust medium flow quantity.

The major features of the structure:

  1. Simple structure,small volume,lightweight,small installation dimension.
  2. Having two kinds of seal material: soft and hard,can be used in various working conditions,with good sealing performance, and long life—span.
  3. Anti-fire structure designed butterfly valve can prevent the expanding of an accidental fire,once the soft sealing valve seat of the butterfly valve catches fire and damaged, the stainless steel seal ring will give play to make butterfly valve keep emergency sealed.
  4. In the condition of the butterfly valve fully opened, it has little flow resistance, and in the condition ofthe butterfly valve partially opened, the flow quantity can be controlled sensitively.
  5. Little driving couple, convenient and quick operations.

 

Sealing principle analysis

 


 

Single eccentric butterfly valve

Technical specification

Major parts material form

 


 

Double eccentric butterfly valve

Technical specification

Major parts material form

 


 

Three eccentric butterfly valve

Technical specification

Major parts material form

 


 

Variable eccentric butterfly valve

Technical specification

Major parts material form

 

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PT Greentech Global Engineering

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