HandLever Operated PTFE Full Lined Butterfly Valve Wafer type

Fully lined butterfly valve, with good anti-corrosion performance, from the structural point of view, there are two halves and one type on the market, usually lined with materials PTFE, and PFA, which can be used in the more corrosive media, with long service life.

Size: 2”-48”/DN50-DN1200

Pressure Rating: PN10/16, JIS5K/10K, 150LB

Warranty: 18 Month

Brand Name: ZFA Valve

Service: OEM

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Product Detail

Size & Pressure Rating & Standard
Size	DN40-DN600
Pressure Rating	PN10, PN16, CL150, JIS 5K, JIS 10K
Face to Face STD	API609, BS5155, DIN3202, ISO5752
Connection STD	PN6, PN10, PN16, PN25, 150LB, JIS5K, 10K, 16K, GOST33259
Upper Flange STD	ISO 5211

Material
Body	Cast Iron(GG25), Ductile Iron(GGG40/50), Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, Aluminium Alloy.
Disc	DI+Ni, Carbon Steel(WCB A216) coated with PTFE
Stem/Shaft	SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel
Seat	PTFE/RPTFE
Bushing	PTFE, Bronze
O Ring	NBR, EPDM, FKM
Actuator	Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator

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Product Advantage

The interior of the valve body is fully lined with PTFE (polytetrafluoroethylene), providing exceptional corrosion resistance against corrosive media such as acids, alkalis, and various chemical fluids.

The valve seat features a backing structure comprising PTFE-encapsulated silicone rubber; this design ingeniously combines the superior chemical resistance of PTFE with the elastic properties of silicone rubber, thereby ensuring reliable sealing performance even under demanding operating conditions.

Fluids do not easily adhere, making the piping system more efficient and reducing the frequency of maintenance.

Compared to EPDM, PTFE offers not only superior corrosion resistance but also higher temperature tolerance; however, it should be noted that the required operating torque for PTFE is higher than that for EPDM.