PTFE Lined Diaphragm Valve

Grayson PTFE Lined Pipe is a prominent PTFE, FEP, and PFA Lined Diaphragm Valves manufacturer with its headquarters in Midland, UK. The PTFE Diaphragm Valves can be operated manually or automatically through control systems. The uses for these include the food and drinks, semiconductors, pharmaceutical, and biotech industries. Flow within the PTFE lined diaphragm valve is controlled by a soft flexible diaphragm that switches to either open or close an orifice within the valve body. PFA Diaphragm Valves contain internally coated PFA polymer, and the valve bodies are made of stainless steel, ductile iron, carbon steel, cast iron, or high alloys depending on the specific pipeline use.

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What is PTFE Lined Diaphragm Valve?

A PTFE Lined Diaphragm Valve is a flow control valve with an internal lining of PTFE (Polytetrafluoroethylene) that has very good resistance to corrosion and chemical exposure. The valve works using a flexible diaphragm that flexes upwards and downwards in order to manage the flow path, either permitting or preventing fluid flow. This valve is used extensively in the pharmaceutical, food and beverage, biotechnology and semiconductor sectors because it is highly pure and leak-proof. The PTFE lining not only guards the valve body from aggressive media but also improves its life expectancy and ensures the overall pipeline system’s integrity.

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PTFE Lined Diaphragm Valve Specification

SIZE		ØA	H	J	L
in	mm		PD11
1/2″	15	15	100	100	108
3/4″	20	20	103	100	146
1″	25	25	108	100	146
1-1/2″	40	40	153	120	175
2″	50	50	168	120	200
2-1/2″	65	65	226	180	226
3″	80	80	237	180	260
4″	100	100	320	230	327

Largest PTFE Lined Diaphragm Valve Supplier in Midland, UK

Grayson PTFE Lined Pipe is a leading supplier of PTFE Lined Diaphragm Valve in Midland, UK, offering high-quality, corrosion-resistant solutions ideal for chemical, pharmaceutical, and industrial applications.

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Why Choose Grayson PTFE Lined Pipe for PTFE Lined Diaphragm Valve?

Types of PTFE Lined Diaphragm Valve We Offer

Dimension Chart of PTFE Lined Diaphragm Valve

SIZE	L^$ (mm)	ØC (mm)	Torque^§ (N.m)
DN15-1/2”	108	35	80
DN20-3/4”	117	43	85
DN25-1”	127	51	115
DN40-1 1/2”	159	73	155
DN50-2”	190	92	155
DN65-2 1/2”	216	104	190
DN80-3”	254	127	200
DN100-4”	305	158	245
DN125-5”	353	185	300
DN150-6”	406	214	360
DN200-8”	520	266(min)	Available on
DN250-10”	635	320(min)	Request

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Quality Control Facilities at Grayson PTFE Lined Pipe

Benefits of PTFE Lined Diaphragm Valve

High Temperature Resistance
Performs efficiently under a wide range of temperatures without deformation or breakdown.
Excellent Corrosion Resistance
Resists aggressive chemicals, acids, and corrosive fluids, making it ideal for harsh environments.
Leak-Proof Design
Offers tight sealing to prevent leakage and ensure system safety.
Long Service Life
Durable construction and chemical resistance enhance longevity even in continuous use.

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Applications of PTFE Lined Diaphragm Valve

Frequently Asked Questions (FAQ)

How do PTFE lined diaphragm valves operate?

These valves use a flexible diaphragm that presses against a weir or seat to regulate flow. They can be operated manually or pneumatically, providing reliable leak-tight shut-off and isolation.

Are PTFE lined diaphragm valves suitable for sanitary applications?

Yes, they are highly suitable for sanitary environments thanks to their smooth, non-contaminating surfaces and easy-to-clean design.

What size options are available for PTFE lined diaphragm valves?

PTFE lined diaphragm valves are offered in a broad range of sizes, typically from ½ inch to 12 inches, with customization available to meet specific industrial requirements.

Where are PTFE lined diaphragm valves used?

They are used in chemical processing, pharmaceuticals, food industries, and water treatment where chemical resistance and contamination-free flow are critical.

Can PTFE lined diaphragm valves handle high temperatures?

Yes, they can handle moderate to high temperatures, typically up to 200°C, depending on design and application requirements.