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Pneumatic PTFE valve

Products > Anticorrosive valve > Pneumatic PTFE valve

Pneumatic PTFE valve

Model: D671F
Nominal diameter: DN50 ~ 1200mm
Nominal pressure: 0.6 ~ 1.6MPa
Body material: ductile cast steel, cast steel, alloy steel, stainless
Temperature: -30 ~ + 70 ℃
Medium: air, water, sewage , steam, gas, oil and other
Design criteria: GB / T2238-1989
Flange size: GB / T9113.1-2000, GB / T9115.1-2000 , JB78
Length of the structure: GB / T12221-1989
Pressure test: GB / T13927-1992, JB / T9092-1999
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First, pneumatic PTFE sealing butterfly valve product overview

AT pneumatic PTFE butterfly valve by the PTFE seal and stainless steel valve plate, stem composition. Pneumatic PTFE sealing butterfly valve for temperature ≤ 150 ℃, weak corrosion or cleanliness requirements of a certain conditions, in food, medicine, chemicals, petroleum, electricity, paper and other water supply and drainage, gas pipeline for regulating the role of flow and interception of the media . 
 
 AT pneumatic PTFE butterfly valve main features 
 1, a new design, reasonable, unique structure, light weight, quick opening and closing. 
 2, torque is small, easy to operate, labor-saving smart. 
 3, can be installed in any location, easy maintenance. 
 4, seals can be replaced, sealing performance and reliable two-way seal to achieve zero leakage. 
 5, sealing material aging resistance, corrosion resistance, long life and other characteristics.
 

Second, pneumatic PTFE valve main technical parameters

1, the valve body

Body formStraight-through casting body
Nominal diameterDN50 ~ 1200mm
Nominal pressurePN 0.6, 1.0, 1.6 MPa
Flange standardGB, JB, HG, ANSI, JIS
Connection TypeClip, flange type
Gland typeIntegrated
Sealed packingV-type PTFE filler, flexible graphite filler


 2, the valve parts

Valve plate formVertical plate (butterfly)
Flow characteristicsSwitch type: Linear; Adjustable: approximation and other white points


 3, the implementing agency

Actuator modelGT series, SR series, AT series, AW series of single-and double-acting pneumatic actuator
Supply pressure400 ~ 700KPa
Air source interfaceG1 / 4 ", G1 / 8", G3 / 8 ", G1 / 2"
Ambient temperature-30 ~ +70 ℃
The role of formSingle-acting actuator: Off Gas formula (B) - loss of gas when the valve opening (FO); open air (K) - loss of gas when the valve closed position (FC) 
       double acting actuator: Off Gas formula (B ) - Leakage valve position to maintain (FL); open air (K) - loss of valve position to maintain (FL)
Can be equipped with accessoriesPositioner, Solenoid valve, Air filter pressure reducer, Relief valve, Stroke switch, Valve position transmitter, Hand wheel mechanism, etc.


 Third, pneumatic PTFE butterfly valve main performance indicators

Nominal diameterDN (mm)50 ~ 2000
Nominal pressurePN (MPa)0.61.01.6
test pressureStrength test0.91.52.4
Seal test0.661.11.76
Gas seal test0.60.60.6
Suitable mediaAir, water, sewage, steam, gas, oil and so on.
Drive formManual, worm gear drive, gas drive, electric drive.


 Fourth, pneumatic PTFE valve parts materials

Part Namematerial
BodyDuctile cast steel, cast steel, alloy steel, stainless steel
Butterfly plateGray cast iron, ductile cast steel, cast steel, stainless steel and special materials
Sealing ringPTFE, PTFE
Valve stem2Cr13, stainless steel
fillerO-ring


   

Five, pneumatic PTFE valve shape connection size

Nominal diameter 
         (mm)		5065801001251502002503003504004505006007008009001000
L9090100115130140150250270290310330350390430470500550
L143464956647071768392102113127154165190203216
HFlanged637083105115137164206230248289320343413478525585640
Clip-on637083105115137164206230248289320343413478525585640
n-φd4-184-188-188-188-188-2212-2212-2612-2616-2616-3020-3020-3320-3624-3624-3928-3928-42
H1According to the allocation of implementing agencies may be
ADepending on the torque required by the valve, the configuration of different models, dimensions are not the same
D165185200220250285340405460520580640715840910102511251255
D112514516018021024029535541047052558565077084095010501170

Note: the size of the table without standard attachment data. The other due to product improvement technical innovation parameters may have some changes, please consult the company's technical department for the latest data.