PRODUCTS > Pneumatic butterfly valve > AT pneumatic lining fluorine clip butterfly valve

AT pneumatic lining fluorine clip butterfly valve

Nominal diameter: DN50 to 1000mm
Nominal pressure: 0.6~1.6MPa
Body material: ductile cast steel, cast steel, stainless steel, +F46
Applicable temperature: -30~+70℃
Applicable medium: all kinds of strong corrosive medium
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One: Overview of pneumatic lining fluorine clip butterfly valve products

       Pneumatic fluorine butterfly valve with a spherical sealing surface of the lining PTFE lining butterfly plate, pneumatic fluorine valve convenient operation, tight sealing performance, long service life; can be quickly cut off or adjust the flow of. Pneumatic lined PTFE butterfly valves are suitable for applications requiring reliable sealing and good regulation characteristics. The valve body adopts split type, and the sealing at both ends of the valve shaft is controlled by the rotation base plate of the butterfly plate and the valve seat with fluorine rubber, and the valve shaft is not contacted with the fluid medium in the cavity. Pneumatic PTFE lined butterfly valve is widely used in various types of industrial liquid and gas pipeline (including steam) transportation, there are serious corrosive media occasions, such as: sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine, alkali, aqua regia and other strong corrosive media.

       All lined polytetrafluoroethylene (F4), poly three fluorine vinyl chloride (F3) and poly fluorine ethylene propylene (F46) fluorine plastic lined butterfly valve, with corrosion resistance, no leakage, long life and so on. F-lined pneumatic butterfly valve used in concentrated sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, aqua regia, organic acid, strong acid, oxidizing medium or high temperature high temperature concentrated sulfuric acid, vinyl acetic acid, alkali alternate and various organic solvents and other corrosive media.

Main features of pneumatic lining fluorine butterfly valve:
1, Small, light, easy disassembly and maintenance, and can be installed at any location.
2, The structure is simple and compact, and the turning is quick at 90 degrees. Three
3, Operating torque small, labor-saving and light.
4, The flow characteristics tend to line, good regulation performance.
5, Sealing materials aging resistance, corrosion resistance, can be applied to a variety of media.

Two: Main technical parameters of pneumatic lining fluorine butterfly valve

1, valve body

Type of bodyThrough casting butterfly valve
Nominal diameterDN50~1000mm
Nominal pressurePN1.0、1.6 MPa
Flange standardJIS B220、JB/T79、ANSI B16.5-1981、GB/T9113、HG20594-97、HG20618-97etc.
Connection formFlange type, clip type
Bonnet formOne-piece
Gland typeGland press type
Sealing fillerV PTFE packing, flexible graphite filler

2, The valve parts

Valve plate formVertical plate (butterfly shape)
Flow characteristicsLinear

3, The executive body

Actuator typeGT series, SR series, AT series, AW series single and double acting pneumatic actuators
Supply pressure400~700KPa
Air connectionG1/4"、G1/8"、G3/8"、G1/2"
Ambient temperature-30~+70℃
Action formSingle acting mechanism: gas closed type (B) - when the gas valve position (FO); gas open (K) - out of gas valve position (FC)
Double acting actuator: gas closed type (B) - valve position (FL) when gas is out; gas open (K) - valve position holding (FL) when lost air
Accessories availablePositioner, solenoid valve, air filter pressure reducer, retaining valve, stroke switch, valve position conveyor, hand wheel mechanism, etc.

Three: Pneumatic lining fluorine butterfly valve main performance index

Airtight seal test

Nominal diameterDN(mm)50~1600
Nominal pressurePN(MPa)
Test pressureStrength test0.91.52.4
Sealing test0.661.11.76
Applicable mediumAll kinds of strong corrosive media

Four: Pneumatic lining butterfly valve parts material

Part nameMaterial Science
Valve body(ductile cast steel, cast steel, stainless steel) +F46
Disc(grey cast iron, ductile cast steel, cast steel, stainless steel and special material) +F46
The stem2Cr13、Stainless steel
FillerO Ring、Flexible graphite