PTFE Lined Diaphragm Valve

If you are buying Waits Valve high quality PTFE Lined Diaphragm Valve for the first time, we provide a friendly guide service for beginners. We have written a lot of articles on valve features and maintenance guidelines. These resources not only help customers choose the right valve, but also serve as an "encyclopedia" for novice valve engineers. Choose us and you will have a reliable supplier!

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Product Description

Waits Valve PTFE Lined Diaphragm Valve is a corrosion resistant and durable valve that isolates the medium from the metal parts through a fluoroplastic diaphragm and achieves opening/closing and sealing through the elastic deformation of the diaphragm. Suitable for acids, chlorine, chlorinated water and solutions, deionized water, salt, alkaline solutions, lime and copper chemicals.Our product has a cavity free, low emission design and a leak-free stem seal. Position indicator. Mechanical parts are isolated from the fluid.

Valve body: cast iron, ductile iron, WCB carbon steel or CF8M stainless steel. Coating (plastic): DN15 – D200: 3mm.

Valve cover: cast iron or ductile iron.

Pressure: PN10-16.

Optional: Non-rising stem. The valve adopts a gas-tight sealing design, which is easy to maintain. Its replaceable parts can be easily replaced online and are available from stock.

The core feature of PTFE Lined Diaphragm Valve is that the medium does not contact the internal metal structure of the valve body. It is suitable for harsh working conditions with strong corrosion, high purity, easy pollution or containing particles.

Widely used in chemical, pharmaceutical, environmental protection and electronics industries.

Features and advantages

Gas-tight closing (Class VI)

No cavity design

Easy maintenance/low maintenance

Online maintenance (top entry)

Stem seal is leak-free

Standard position indicator

Implementation Standards-PTFE Lined Diaphragm Valve
Design Standards	MSS - SP - 88, BS 5156
Flange Standard	ASME B16.5/ASME B16.47-A/B /EN1092-1/2
Connection methods	RF
Testing and acceptance	API 598, EN12266
Structural length	API6D/ASME B16.10/EN558
Pressure and temperature ratings	ASME B16.34
Fireproof test	/
Low leakage standards	ISO 15848-1, API 622
Anti-corrosion design	NACE MR 0175
Application-PTFE Lined Diaphragm Valve
Size	NPS 1/2”~ NPS 14″ DN15 ~ DN350
Pressure range	CL150 ~CL150 PN10~ PN16
Temperature range	PTFE-50°C~+180°C
Application range	Chemical industry, pharmaceutical industry, environmental engineering, semiconductor and electronics, energy systems, etc.
Valve body	Forgings: A105, A182 F304, F304L, F316, F316L, F51, F53, B148, A350 LF2, LF3, LF5, Monel, PTFE-lined Castings: A216 WCB, CF3, CF8, CF3M, CF8M, 4A, 5A, C95800, LCB, LCC, LC2, PTFE-lined
Valve plate	Carbon steel, stainless steel, PTFE-lined
Valve stem	‌A182-F6a-F304-F316-F51 17-4PH/XM-19 ...
Valve seat	Asbestos graphite, flexible graphite, polytetrafluoroethylene, iron-based alloy