China Lined Valve Manufacturers & Suppliers

Pneumatic Actuated PFA FEP PTFE Lined Flanged Gate Valve

Place of Origin:
Suitable Packing for Sea/Air Transport
PTFE:-29℃ ~180℃, PFA:-29℃~200℃, FEP:-29℃~150℃
Pneumatic Actuated PFA FEP PTFE Lined Flanged Gate Valve

FVF Pneumatic Actuated PFA FEP PTFE Lined Flanged Gate Valve

  • FVF gate valve can be divided into rising stem gate valve, which refers to the disc doing lift movement in straight line along with the valve stem, and nonrising stem gate valve which refers to the stem nut located in the disc, when the stem rotates, the disc doing lift movement in straight line.
  • The inner cavity of the valve body and bonnet, the gate, the outer surface of the valve stem and other components that directly contact the medium are all lined with FEP (F46) or PCTFE (F3) and other fluorine materials.
  • The sealing pair are FEP (F46)/ FEP (F46) or combination of other materials, with small friction coefficient and low opening and closing torque.PTFE (F4) is used as the packing, which feactures good sealing performance and convenient maintenance and replacement.
  • FVF lined gate valves are commonly used in chemical, petroleum, pharmaceutical, food, metallurgy, paper, hydropower, environment protection etc.
  • They can be equipped with a manual lever or can be actuated with electric or pneumatic actuators. A full range of accessory items are available including limit switches, solenoid valves, positioners and manual override devices.

Product Parameter

Materials of Main Parts

No. Part Name Material List
1 Body HT250 WCB CF8 CF8M
2 Bonnet HT250 WCB CF8 CF8M
3 Disc HT250 WCB CF8 CF8M
4 Lining/Seat PCTFE(F3)     PVDF(F4)     FEP(F46)     PFA      PO
5 Packing PTFE
6 Bracket HT250 WCB CF8 CF8
7 Handwheel QT400-15

Technical Specification

Design & Manufacture Standard GB/T 12234 API 600
Face-to-face Dimension Standard GB/T 12221 ASME B16.10
Flange Standard HG20592 ASME B16.5
Inspection and Test Standard GB/T 13927 API 598
Nominal Pressure 1.0MPa 1.6Mpa 150LB
Test Pressure Shell Test 1.5MPa 1.5MPa 1.5MPa
High Pressure Sealing 1.1MPa 1.1MPa 1.1MPa
Low Pressure Sealing 0.6MPa 0.6MPa 0.6MPa
Temperature Range PFA:-29℃~200℃    PTFE:-29℃~180℃  FEP:-29℃~150℃
Applicable Medium Strong corrosive medium i.e.hydrochloric acid,Nitric acid,Hydrofluoric acid,Liquid chlorine,Sulfuric acid and Aqua regia etc.
Note:Test standard refers to general valve standard,high pressure should be customized for processing.

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