Stainless steel CF8M body – Wafer butterfly valve – Disc CF8M – Metal seat

Stainless steel CF8M body - Wafer butterfly valve - Disc CF8M - Metal seat


Size: DN 40 to DN 1400 


Use: High temperature smokes, powders

Body & Disc : stainless steel ASTM A351 CF8M

Temperature:  – 20°C to + 350°C (* : higher temperature on request )

Max Pressure: 16 bars up to DN300 , 10 bars over

Not for steam

Long neck for isolation

ISO 5211 mounting pad

Wafer type

Between flanges PN10/16 and Class 150 (PN20) up to DN400 included ( over on request )

Between flanges PN10 from DN450 to DN1400

Crossing stem

No tightness , loss factor : 2% of Kvs

Ductile iron +/- 40 µ epoxy coated disc from DN125 to 300, ductile iron disc rilsan coated +/- 300 µ over for Ref. 1111

9 positions lever, with locking device up to DN200 , stop in all positions but non lockable from DN250 to 300

Stem extension 75 mm length ( option )

Square lever 30×30 mm for special key ( option )

With lever from DN 40 to DN 300

Naked stem from DN 350 to DN1400

IP65 Gear box possible from DN 40 to DN 1400

IP65 chain gear box possible from DN 40 to DN 500

On request, stem extension with special length

On request, stainless steel lever and bolting


 Fabrication according to ISO 9001:2008

 Designing according to ISO 10631

 DIRECTIVE 97/23/CE : CE N° 0038 Risk Category III module H

 Body tests according to ISO 5208, range A

 Between flanges according to EN 1092-1 PN10/16

 ISO 5211 mounting pad

 Length according to ISO 5752 short series 20, EN 558 series 20 ( NF 29305 ),BS 5155 Wafer short/medium, DIN 3202 part 3, series K1

 ATEX Group II Category 2 G/2D Zone 1 & 21 Zone 2 &22 ( optional marking )

 OTAN agreement ( N° 286B )

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