AT pneumatic lining fluorine clip butterfly valve
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
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 body | Through casting butterfly valve |
|---|---|
| Nominal diameter | DN50～1000mm |
| Nominal pressure | PN1.0、1.6 MPa |
| Flange standard | JIS B220、JB/T79、ANSI B16.5-1981、GB/T9113、HG20594-97、HG20618-97etc. |
| Connection form | Flange type, clip type |
| Bonnet form | One-piece |
| Gland type | Gland press type |
| Sealing filler | V PTFE packing, flexible graphite filler |
2, The valve parts
| Valve plate form | Vertical plate (butterfly shape) |
|---|---|
| Flow characteristics | Linear |
3, The executive body
| Actuator type | GT series, SR series, AT series, AW series single and double acting pneumatic actuators |
|---|---|
| Supply pressure | 400～700KPa |
| Air connection | G1/4"、G1/8"、G3/8"、G1/2" |
| Ambient temperature | -30～+70℃ |
| Action form | Single 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 available | Positioner, 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 diameter | DN（mm） | 50～1600 | ||
|---|---|---|---|---|
| Nominal pressure | PN（MPa） | 0.6 | 1.0 | 1.6 |
| Test pressure | Strength test | 0.9 | 1.5 | 2.4 |
| Sealing test | 0.66 | 1.1 | 1.76 | |
| 0.6 | 0.6 | 0.6 | ||
| Applicable medium | All kinds of strong corrosive media | |||
Four: Pneumatic lining butterfly valve parts material
| Part name | Material 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 stem | 2Cr13、Stainless steel |
| Filler | O Ring、Flexible graphite |
