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Size Range
DN 50 to 400
Maximum Allowable Operating Pressure
10 bar
Temperature Range
-29°C to 200°C


PTFE-Lined - 2-Cx.

Size Range
DN 50 to 400
Temperature Range
-29°C to 200°C
Maximum Allowable Operating Pressure
10 bar
Body Style
Wafer, Lug
Tightness Test
EN 12266-1 Rate A
Valve Design
EN 12569 | EN 593 | NE 167
Material Standard
EN 16668 | AD2000 W0
EN 19 | DIN EN IEC 61406 | DIN 91406
Top Flange
ISO 5211
Flange Drilling
EN 1092-1 PN 10
Face to Face
EN 558 Series 20
Declaration of Conformity
Pressure Equipment Directive
2014/68/EU | PE(S)R
Machinery Directive
Atmospheric Explosion
ATEX (2014/34/EU)
Fugitive Emissions
ISO 15848-1 | TA-Luft VDI 2440
Safety Integrity Level
IEC 61508 Level 3 (SIL 3 capable)
Body Materials
Low temperature Ductile Iron (EN 5.3103)
Disc Materials
Stainless Steel (EN 1.4408) | Duplex Stainless Steel (EN 1.4470)
Stem Materials
Stainless Steel (EN 1.4408) | Stainless Steel (EN 1.4542) | Duplex Stainless Steel (EN 1.4470)
Seat Materials
PTFE | Conductive PTFE
Chemical gases, Chemical fluids, Petrochemicals, Food & Beverage, Pharmaceutical, Water and Wastewater treatment

Features & Benefits

The Series 22 Cx wafer and Series 23 Cx lug style lined butterfly valve features a state-of-the-art design that provides excellent shutoff protection and high flow rates with exceptionally long service life. It has been specifically engineered to meet the stringent demands of the Chemical Industry.
2 Cx Line
  • A. Digital Tag

    Each valve is uniquely and easily identifiable by simply scanning the QR Code on the product identification tag in accordance to IEC 61406.

  • B. Electrostatic discharge through antistatic design

    Electrostatic discharge through antistatic design (Ground washer and Top flange drilling).

  • C. Stem Design

    The high-strength stem design combine blowout-proof functionality for safe operation and exceptional service life.

  • D. Stem Bushing

    Non-corrosive, heavy duty acetal bushing absorbs actuator side thrust.

  • E. Bearings

    PTFE impregnated steel bearings provided for the precision alignment of the upper and lower stem.

  • F. Stem Seal System

    The live-loaded packing design features a primary and secondary sealing principle to comply with the most stringent fugitive emission requirements.

  • G. Seat Energizer

    A resilient seat energizer extends completely around the seat, including the disc hub providing uniform force sufficient for zero-leakage.

  • H. Disc

    The encapsulated disc has 3 mm minimum thickness of virgin-PTFE.

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