fbpx
0
Your Cart
pneumatic fluorine-lined butterfly valve
pneumatic fluorine-lined butterfly valve

Pneumatic fluorine-lined butterfly valve

The pneumatic fluorine-lined butterfly valve adopts a PTFE -lined butterfly plate with a spherical sealing surface . The pneumatic fluorine-lined butterfly valve is easy to operate, has tight sealing performance, and prolongs the service life; it can be used for quick cut off or flow regulation. Pneumatic lined PTFE butterfly valve is suitable for occasions requiring reliable sealing and good adjustment characteristics. The valve body adopts a split type, and the seal at both ends of the valve shaft is controlled by the rotating base surface between the butterfly plate and the valve seat plus fluorine rubber; it ensures that the valve shaft does not come into contact with the fluid medium in the cavity. Pneumatic lined PTFE butterfly valve is widely used in the transportation of liquid and gas (including steam ) in various types of industrial pipelines, and the use of severe corrosive media, such as: sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine, strong alkali, king Strong corrosive media such as water.

Fully lined with polytetrafluoroethylene (F4), polychlorotrifluoroethylene (F3) and polyperfluoroethylene propylene (F46) fluoroplastic lined butterfly valve, which has the advantages of corrosion resistance, no leakage and long service life. PTFE-lined pneumatic butterfly valve is suitable for concentrated sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, aqua regia, various organic acids, strong acids, oxidizing media or high temperature alkene sulfuric acid, high temperature concentrated acetic acid, acid-base alternation and various organic solvents and other Strong corrosive medium.

Category: Tag:

Main features of pneumatic fluorine-lined butterfly valve :

  1. Small and light, easy to disassemble and maintain, and can be installed in any position.
  2. The structure is simple and compact, and the 90° rotation can be opened quickly.
  3. Small operating torque, labor-saving and lightweight.
  4. The flow characteristics tend to be straight, and the adjustment performance is good.
  5. The sealing material is resistant to aging and corrosion, and can be applied to a variety of media.

Main technical parameters of pneumatic fluorine-lined butterfly valve

  1. Valve body
Body form Straight Through Casting Butterfly Valve
Nominal diameter DN50～1000mm
Nominal pressure PN1.0, 1.6MPa
flange standard JIS B220, JB/T79, ANSI B16.5-1981, GB/T9113, HG20594-97, HG20618-97, etc.
Connection Type Flange type, wafer type
Bonnet form All-in- one
Gland type Gland compression type
seal packing V-type PTFE packing, flexible graphite packing
  1. Valve trim
Valve plate form Vertical plate type (butterfly)
Flow characteristics linear
  1. Executing agency
Actuator model GT series, SR series, AT series, AW series single and double acting pneumatic actuators
Air supply pressure 400～700KPa
Air supply interface G1/4″, G1/8″, G3/8″, G1/2″
ambient temperature -30～+70℃
form of action Single-acting actuator: air-close (B)– valve position open (FO) when gas is lost; air -open (K)– valve position-close (FC) when gas is lost
Double-acting actuator: air-close (B) )– Valve position hold (FL) when degassing; Air -to-open (K)– Valve position hold (FL) when degassing
Accessories available Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter , hand wheel mechanism, etc.
  1. Main performance indicators of pneumatic fluorine-lined butterfly valve
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
Seal test 0.66 1.1 1.76
Air tightness test 0.6 0.6 0.6
Applicable media All kinds of strong corrosive media
  1. Parts and materials of pneumatic fluorine-lined butterfly valve
Part Name Material
valve body (ductile cast steel, cast steel, stainless steel)+F46
Butterfly (Gray cast iron, nodular cast steel, cast steel, stainless steel and special materials)+F46
stem 2Cr13, stainless steel
filler O-ring, flexible graphite

External connection size

pneumatic fluorine-lined butterfly valve

 

Nominal diameter DN(mm) 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000
L 90 90 100 115 130 140 150 250 270 290 310 330 350 390 430 470 500 550
L1 43 46 49 56 64 70 71 76 83 92 102 113 127 154 165 190 203 216
H Flange 63 70 83 105 115 137 164 206 230 248 289 320 343 413 478 525 585 640
Wafer type 63 70 83 105 115 137 164 206 230 248 289 320 343 413 478 525 585 640
n- φd 4-18 4-18 8-18 8-18 8-18 8-22 12-22 12-26 12-26 16-26 16-30 20-30 20-33 20-36 24-36 24-39 28-39 28-42
H1 Depends on the actuator
A According to the torque required by the valve, the configuration models are different, and the external dimensions are also different.
D 165 185 200 220 250 285 340 405 460 520 580 640 715 840 910 1025 1125 1255
D1 125 145 160 180 210 240 295 355 410 470 525 585 650 770 840 950 1050 1170

Note: The dimensions in the table are without standard accessories. In addition, there may be some changes in the technical innovation parameters of product improvement, please consult the company’s technical department for the latest data.

 

Related products