SPFO Pneumatic teflon-lined ball valve is composed of GTX - B series pneumatic rack and pinion actuators and teflon-lined ball valve body assembly. Both the body’s inner surface and the ball’s outside surface are all lined aspcial teflon-FEP(F46) through using high-pressure injection molding technology. A complete teflon flow path can reliably provides maximum erosion resistence and excellent leak tightness.
It can be widely used in chemical, medical, food, paper and sewage treatment etc. industries to control or cut-off of the acid or alkali etc strong corrosive medium.

■ Standard Specifications

Body
Type: Two split through way cast teflon-lined ball valve (As shown in figure 1)
Nominal Diameter:DN15,20,25,32,40,50,65,80,100,125,150,200,250,300
Nominal Pressure: GB PN1.0,1.6Mpa
ANSI CLASS150
End Connection: Flange
GB PN1.0,1.6Mpa according to HG20596-97M
ANSI CLASS150 according to ANSI B16.5 RF and HG/T20615-97

Face to Face Dimension: PN1.6MPa according to GB/T12221-1989,EN558.1:1995,
ISO5752-1982 Basic series 12
CLASS150 RF according to ASME B 16.10 CLASS150 STEEL FLANGED basic series 18,EN558.2:1995 and ISO5752-1982 basic series 3,(DN15-100) and basic series 12(DN125-300) .
Body Material: Please refer to table1 1
Bonnet Type: Together with body
Packing Material: V-shape PTFE
Packing Gland : Bolts impacted
Paint: Carbon steel shell surface required to paint, stainless steel or copper surface without paint .
Trim
Ball type: Through way teflon-lined ball, together with stem
Flow Characteristics: Quickly opening
Ball Material:2Cr13+F46,0Cr18Ni9+F46,0Cr17Ni12Mo2+F46
Seat Material: PTFE
Rotary Angle: 90°
Actuator
Type: GTX-B series pneumatic rack and pinion actuators
Material:Cylinder body ,Extruded aluminum alloy
Caps and Piston,Die- cast aluminum alloy
Action: DA double acting
SR spring return,air to open or air to close
Structure: Double piston Double air-chamber rack and pinion(DA) , please refer to figure 3
Double piston Spring return rack-and pinion (SR),please refer to figure3 and figure 2.

Air Supply: DA 0.1~1.0Mpa
SR 0.2~1.0Mpa
Working Temperature: -20℃~+150℃
Angle Rotation adjustable scope:90°±4°
Signal Interface:1/8’G, NAMUR1/4’G, NAMUR1/2’G
Dynamic Medium: clear, dry ,no corrosive air or the other gas.
Surface protection: Caps and springs ,Powder epoxy painted
Cylinder body, anodic oxidation treatment after sand blast.
Standard configuration with valve: please refer to table 2
Accessory
Positioner, Filter-regulator valve, Solenoid valve, Limit switch,
Valve position Transmitter, Handwheel, Booster relay, Air control valve, Pneumatic lock-valve, etc.

Performance
Travel time:please refer to table 2
Seat leakage: according to ANSI B16.104 classⅥ.
Rated Cv: As shown in table 2
Working Temperature: -30℃～+180℃
Allowable pressure differential: As shown in table 3.1, 3.2
Figure Size:Please refer to table 1 and figure 4.1, 4.2
Weight of product: Please refer to table 4.1, 4.2