Wafer Type Fluorine Lined Butterfly Valve

![]() | Wafer Type Fluorine Lined Butterfly Valve
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Wafer Type Fluorine Lined Butterfly Valve :

D71/D371 series wafer fluorine lined butterfly valves are centerline butterfly valves lined with PTFE(F4) / FEP(F46), widely applied for corrosive liquid, acid, alkali, organic solvent in chemical, pharmacy, wastewater treatment industries. This wafer connection butterfly valve adopts clip-on mounting design between two pipeline flanges, saving installation space and overall project cost. Available drive configurations include manual lever, worm gear handwheel, pneumatic actuator and electric actuator, matching PN0.6/PN1.0/PN1.6MPa working pressure, standard size range DN40~DN1000 ready in stock. Multiple body material options cover cast iron, WCB carbon steel, CF8/CF8M stainless steel to fit diversified on-site medium and temperature requirements. The full fluoroplastic lining eliminates medium corrosion to valve body, realizing tight bidirectional zero leakage.
Available Model Codes
| Operation Type | Model No. | Lining Material |
|---|---|---|
| Manual Lever | D71F4 / D71F46 / D71PP / D71PO | PTFE(F4)/FEP(F46)/PP/PO |
| Worm Gear | D371F4 / D371F46 / D371PP / D371PO | PTFE(F4)/FEP(F46)/PP/PO |
| Pneumatic | D671F4 / D671F46 / D671PP / D671PO | PTFE(F4)/FEP(F46)/PP/PO |
| Electric | D971F4 / D971F46 / D971PP / D971PO | PTFE(F4)/FEP(F46)/PP/PO |

1. Nominal Pressure Grade: PN0.6MPa, PN1.0MPa, PN1.6MPa
2. Available Sizes: DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600, DN700, DN800, DN900, DN1000
3. Connection Type: Wafer Clip-on End, fit HG/T20592 GB standard pipeline flange
4. Working Medium: All kinds of acid, alkali, salt solution, organic solvent, mild corrosive gas
5. Working Temperature: PTFE/FEP lining -40℃~180℃, PP/PO lining ≤80℃
Key Product Advantages
1. Wafer compact design reduces raw material cost and pipeline installation space, fast field mounting without extra flange gaskets;
2. Full fluoroplastic lining completely isolate corrosive medium, avoid rust and abrasion on valve body inner cavity;
3. Centerline disc structure brings low operation torque, flexible open-close action, save operation cost for long-term pipeline operation;
4. Multiple lining options (PTFE/FEP/PFA/PP/PO) satisfy different corrosion and temperature working conditions.
Application Industries
Our D71/D371 fluorine lined wafer butterfly valves are widely supplied to fine chemical industry, pharmaceutical production line, industrial wastewater treatment plant, electroplating factory, mineral processing corrosive pipeline projects, exported to Southeast Asia, Middle East, Europe and North America for corrosive fluid pipeline control.


