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PTFE Lined Butterfly Valves

BFV01-PTFE

The world's leading modular PTFE-lined butterfly valve, built to the highest quality standards for safe handling of aggressive media.


• Safe handling of corrosive media thanks to a unique sealing system

• A regulating pressure package guarantees the specified contact pressure and maximum tightness over the entire lifetime of the equipment

• Specially designed for use with aggressive media such as chlorine gas, hydrofluoric acid and sulfuric acid

Above-average overall performance thanks to a technically proven but constantly 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 and allow the use of smaller and cheaper actuators

•The one-piece valve disc, precisely dimensioned to within tenths of a millimeter, always remains securely anchored in the valve

Injection molded elastomer inserts with a complex design ensure maximum tightness over an increased service life

BODY TYPES

Wafer DN50-300 (Can be made from DN350 to DN1200 with lug body and unthreaded holes.)

Lug DN25-1200

APPLICATIONS

Butterly valve lined with PTFE/PFA or mod. PTFE/PFA for high chemical demands. To shut off and control corrosive and abrasive liquids or gases.


FACE TO FACE

ISO 5752, Basic Range 20

EN 558-1, Basic Range 20


HEAD FLANGE

According to EN ISO 5211


MAX. OPERATING PRESSURE

DN25-450: 10 bar

DN500-600: 6 bar

DN700-1200: 3 bar


CONNECTION STANDARDS

PN10-16 (DN25-150)

PN10 (DN200- 600)

PN6 (DN700-1050)

ANSI CL150


TEMPERATURE RANGE

-60 °C up to +200 °C (see Catalogue, p.9: Pressure / Temperature diagram)


IDENTIFICATION MARKING

EN 19


IN-SHOP TESTING


Porosity Test of Disc Coating (PFA) and Liner (PTFE / mod.PTFE) acc. to EN 60243-1

Leakage Test acc. to EN 12266-1/P12

Leakage Rate A

Check of Torque

APPROVALS


TA-Luft: Compliance Leakage Certificate according to Position 5.2.6.4. of the Technical Instruction Air (TA-Luft), VDI 2440.

Compliance of the Safety Requirements of the European Pressure Equipment Directive 2014/68/EU.

Atex 2014/34/EU compliant Version for explosive surroundings Group II, Zones 0, 1, 2 (and 20, 21, 22 respectively).

Food: Food (EC) 1935/2004; FDA.

PTFE Lined Butterfly Valves

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