PT Greentech Global Engineering

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Check Valve GGEV


GGEV Model Schedule Illustration

Feature Code: Bolt - jointed bonnet structure omitted (default) Ps-pressure sealed structure

Valve type code: H-Check Valve

Connecting type code: 1—lnterior whorl 2—Other whorl 4—Flange 6—Welding 7—To inserting 8—Bear and insert welding 

Design feature code: 1—Lifting type 2—Lifting vertical type 4—Single-disc swing type 6—Dual-disc swing type

Sealing formation code: Y—Hard alloy H—Alloy steel X—RubberF—Intensified polytetrafluoroethylene(PTPE)

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

Body material code:

  1. Cast the valve body: C—WCB I—WC6, ZG1Cr5Mo V—WC9, ZG20CrMoV P—CF8, ZG1Cr18Ni9Ti R—CF8M, ZG1Cr18Ni12M02Ti S—CF3 L—CF3M F—LCB N—LC3
  2. Forge the valve body: C—A105 E—LF2 A—F11 V—F22 P—F304 R—F316 S—F304L L—F316L

 

Products Design Features

Check valve are used in pipes underpressures between PN1.6~16.0MPa(CIass150~ 2500Lb), working temperatures —196 ~ 60°C. They are used in industries include oil, chemistry, pharmaceutical, fertilizer, and power gene-ration to prevent the backward flux ofthe media.

The main structure features include:

  1. The products feature a reasonable structure. reliable seal, good performance and nice modeling.
  2. Either soft or hard seal can be selected for the product upon different working conditions. The sealing face is built up with Co-based carbide alloy, leaving a better wearability, corrosion and scrap resistance and a longer duration.
  3. Small opening pressure, the disc can be opened fully with a very small pressure differential.
  4. Inside-set bolt-bearing structure reduces leakage and reliable use.
  5. PN >= 16.0 Mpa (class1500), the middle cavity uses a self-tightening sealing structure to have the sealing perfomance reinforced along with the pressure rise so as to ensure the sealing performance.
  6. Different parts materials and different sizes for flange, butt-welding are available for sensible combination according to different working facts and customer's requirements.

 

Main Parameter of the products

 

Products performance specification


Swing type check valve

Technical specification

Major parts material form


Swing type check valve

Technical specification

Major parts material form


Swing type check valve

Technical specification

Major parts material form


Piston-life type check valve

Technical specification

Major parts material form


Piston-life type check valve

Technical specification

Major parts material form


Piston-life type check valve

Technical specification

Major parts material form


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PT Greentech Global Engineering

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