Chemflyer | CST

PTFE lined butterfly valve

The world’s leading modular PTFE-lined butterfly valve ChemFlyer | CST is manufactured in Switzerland to the highest quality standards for the safe handling of aggressive media.

Uniquely tight & safe

  • Safe handling of corrosive media thanks to unique sealing system
  • A regulating pressure package guarantees the specified contact pressure and maximum tightness over the entire service life  
  • Specially designed for use with aggressive media such as chlorine gas, hydrofluoric acid &
    & sulphuric acid
  • Above-average overall performance thanks to a technically proven but continuously improved sealing system

 

Advantageous design principle

  • Reduced friction and increased service life thanks to spherical design elements
  • Rounded and polished sealing surfaces of the disc reduce the torque & allow the use of smaller and cheaper actuators
  • The precisely dimensioned, one-piece disc remains securely anchored in the valve at all times
  • Injection-moulded elastomer inserts with complex design ensure maximum tightness over an increased service life

 

Traceable & modular

  • Consistently modular design and individually traceable with serial number
  • Adaptable to a wide range of requirements & applications thanks to consistently modular design
  • Individual serial numbers enable complete traceability of all pressurised components

 

Additional advantages

  • Consistently modular design and individually traceable with serial number
  • Adaptable to a wide range of requirements & applications thanks to consistently modular design
  • Individual serial numbers enable complete traceability of all pressurised components
Housing
Spheroidal graphite iron, stainless steel, carbon steel, Duroplast

Valve disc
PFA, PFA conductive, stainless steel, duplex, titanium, Hastelloy

Insert material
VMQ, EPDM, FKM

Seat ring material
PTFE, modified PTFE, modified PTFE conductive, UHMPE

  1. Disc
  2. Liner
  3. Backup
  4. Body
  5. Pusher
  6. Belleville Springs
  7. Shaft Bushing
  8. Top Bushing
  9. Body Bolts

chemflyer | CST

PTFE-lined butterfly valve for use with aggressive media.

  • Nominal size range: DN 250 – DN 1200 / 1″ – 48″
  • Flange connection:
    EN 1092-1, PN 10-16
    ASME B16.5, Class 150
    JIS 10K
  • Maximum working pressure:
    DN 25-450: 10 bar
    DN 500-600: 6 bar
    DN 650-1200: 3 bar
  • Operating temperature: – 20°C bis + 200°C*
  • Face-to-face dimension: EN 558, Grundreihe 1
  • Disc materials:
    PFA / PFAc, PFA konduktiv / Edelstahl, 1.4404
    / Duplex, 1.4462, 1.4469 / Titanium Grade 2, 3.7035
    / Hastelloy C, 2.4602, 2.4819
  • Seat ring materials:
    PTFE / modifiziertes PTFE / modifiziertes PTFE konduktiv
    / UHMPE
  • Insert materials:
    Silikon / EPDM / FKM
  • Housing materials:
    Sphäroguss, 5.3103 / Edelstahl, 1.4404 / Carbonstahl
    / Kunststoff, VE-CF
  • Conformity:
    DGRL 2014/68/EU / ATEX 2014/34/EU
    / Lebensmittel (EG) Nr. 1935/2004, FDA
    / TA-Luft, ISO 15848-1
  • Pressure test:
    EN 12266-1

* Operational limitations depend on nominal width, temperature and composite materials. Crucial are the parameters set in the confirmation.

EXHIBITION DATES


SOLIDS EASYFAIRS Dortmund
16. – 17.06.2021

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