Product Description – PTFE Coated Wafer Butterfly Valve

The PTFE coated wafer butterfly valve is a high-performance solution designed for demanding flow control in engineering projects and water systems. With a compact wafer-style body, this valve allows for easy installation between flanges, saving space and reducing installation time in complex pipeline layouts.

The interior is coated with PTFE (polytetrafluoroethylene), offering excellent resistance to corrosive media, chemicals, and scaling—making it ideal for municipal water networks, wastewater treatment, cooling systems, and industrial water supply.

Manufactured by one of China’s top valve suppliers, this valve delivers long-term durability, tight sealing, and smooth operation under harsh conditions. Its lightweight design combined with superior chemical resistance makes it a smart, cost-effective choice for both new and replacement pipeline projects.

Specifications:

Size	DN50-DN1000
Nominal Pressure	PN10/16, 150-300LB
Working Temperature	-30。c – 135。C
Suitable Media	Chemicals, air, water, steam, oil, acids, salts ect

Standards:

Design standard	API609, ANSI16.34, JISB2064, GB T12238
Face to Face	API609, DIN3202, ISO5752, BS5155
Flange drilling	DIN2501 PN10/16, ANSI 125/150/300, BS4504, JIS10K
Top Flange	ISO5211
Test Inspection	API598

Material:

Body	Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel
Disc	Ductile Iron, Carbon Steel, Stainless Steel
Stem	Stainless Steel
Seat	EPDM, NBR, PTFE, VITON, HYPALON
O ring	EPDM, NBR