Pneumatic PTFE Butterfly Valve

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Pneumatic PTFE Butterfly Valve

Product Model: D671F
Nominal Diameter: DN50 ~ 1200mm
Nominal Pressure: 0.6~1.6MPa
Body Material: Ductile Cast steel, Cast Steel, Alloy Steel, Stainless Steel
Applicable Temperature: -30～+70℃
Applicable Medium: Air, Water, Sewage, Steam, Gas, Oil and so on
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First, Pneumatic PTFE Sealing Butterfly Valve Products Overview
AT Pneumatic PTFE Butterfly Valve Consists of PTFE sealing butterfly valve, stainless steel valve plate and valve stem. Pneumatic PTFE sealing butterfly valve is suitable for temperature less than 150 DEG C, Weak corrosion or cleanliness conditions have certain requirements, in food, medicine, chemical, petroleum, electric power, papermaking, water supply and drainage, gas pipes to regulate the flow and closure of the role of media.

Main Features Of AT Pneumatic PTFE Butterfly Valve
1, The design is novel, reasonable, unique structure, light weight, quick opening and closing.
2, Small operation torque, easy operation, labor-saving and smart.
3, Can be installed in any location, convenient maintenance.
4, Seals can be replaced, sealing performance is reliable, to achieve two-way sealing zero leakage.
5, Sealing material aging resistance, corrosion resistance, long service life and so on.

Two, Main Technical Parameters Of Pneumatic PTFE Butterfly Valve
1, Valve Body

Type of BodyStraight Through Casting Valve Body
Nominal DiameterDN50～1200mm
Nominal PressurePN 0.6、1.0、1.6 MPa
Flange StandardGB、JB、HG、ANSI、JIS
Connection FormPair Clamp Type, Flange Type
Gland TypeOne-piece
Sealing FillerV PTFE Packing and Flexible Graphite Filler


 2, Valve Internals

Valve Plate Form

Vertical Plate (Butterfly)

Flow CharacteristicsSwitch Type: Linear; Regulating Type: Approximate Equal White Ratio


3, Executive Agencies

Actuator TypeGT Series, SR Series, AT Series, AW Series Single and Double Acting Pneumatic Actuators
Gas Supply Pressure400～700KPa
Air ConnectionG1/4"、G1/8"、G3/8"、G1/2"
Ambient Temperature-30～+70℃

Action Form

Single Acting Actuator: Gas Shut Off (B) - Valve opening (FO) when gas is out of breath; gas open (K) - valve position off (FC) when air is out of breath
Double Acting Actuator: Gas Shut off (B) - valve position holding (FL) when gas lost; gas open (K) - valve position holding (FL) when lost air
Fitting AccessoriesPositioner, Solenoid Valve, Air Filter Pressure Reducer, Retaining Valve, Stroke Switch, Valve Position Conveyor, Hand Wheel Mechanism, etc.


Three, Main Performance Index Of Pneumatic PTFE Butterfly Valve

Nominal DiameterDN（mm）50～2000
Nominal PressurePN（MPa）0.61.01.6
Test PressureStrength Test0.91.52.4
Sealing Test0.661.11.76
Airtight Sealing Test0.60.60.6
Applicable MediumAir, Water, Sewage, Steam, Gas, Oil and so on.
Driving FormManual, Worm and Worm Gear Drive, Pneumatic Drive, Electric Drive.


Four, Pneumatic PTFE Butterfly Valve Parts Material

Part NameMaterial Science
Valve BodyDuctile Cast Steel, Cast Steel, Alloy Steel, Stainless Steel
DiscGrey Cast Iron, Ductile Cast Steel, Cast Steel, Stainless Steel and Special Materials

Seal Ring

Teflon、PTFE
The Stem2Cr13、Stainless Steel
FillerO-ring

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Shape Connection Size

Nominal
Diameter
DN(mm)		5065801001251502002503003504004505006007008009001000
L9090100115130140150250270290310330350390430470500550
L143464956647071768392102113127154165190203216
HFlange Type637083105115137164206230248289320343413478525585640
Clip Type637083105115137164206230248289320343413478525585640
n-φd4-184-188-188-188-188-2212-2212-2612-2616-2616-3020-3020-3320-3624-3624-3928-3928-42
H1It depends on the executing agency
AAccording to the torque required by the valve, the configuration of different models, the size of the shape is not the same
D165185200220250285340405460520580640715840910102511251255
D112514516018021024029535541047052558565077084095010501170

Note: the size of the table is data without standard accessories. In addition, technical innovation parameters may be changed due to product improvement. Please consult the technical department for the latest data.