The Largest Diaphragm & Ball Valve Exporter Since 1978, an ISO 9001:2015 Certified

PTFE Lined Gate Valve

PTFE Lined Gate Valve Manufacturer

Mayur (Valves) System Private Limited, an ISO 9001:2015-certified company, has been a trusted PTFE Lined Gate Valve manufacturer and exporter since 1978. With exports to 40+ countries worldwide, we focus on timely delivery, consistent quality, and a smooth customer experience. Our valves serve clients across Europe, North America, the Middle East, Southeast Asia, Russia, and other international markets, supporting diverse industrial applications. The MVS Valves PTFE Lined Gate Valve is specifically engineered to handle highly corrosive, abrasive, and fiber-laden media found in chemical, pharmaceutical, and industrial process systems. Designed to ensure full bore flow and tight shut-off, this valve is available in both rising stem and non-rising stem configurations to suit different installation needs. In the rising stem model, the stem moves vertically along with the disc, allowing clear visual indication of valve position. In contrast, the non-rising stem design operates by rotating the stem without vertical movement, which is ideal for confined spaces.

To ensure unmatched corrosion resistance and reliable sealing, MVS offers PFA lined gate valves, FEP lined gate valves, and PTFE lined gate valves with high-integrity linings that withstand aggressive acids, alkalis, and solvents. These linings are permanently bonded to robust cast iron, carbon steel, or stainless steel bodies, delivering long-lasting protection and mechanical stability. The valve’s design ensures smooth operation and prevents clogging, especially when handling particulate-rich or viscous media, which can often lead to jamming in conventional gate valves.

Built to comply with global quality standards, our fluoropolymer lined gate valve range provides excellent resistance to a wide range of chemicals and temperatures. These valves are ideal for use in demanding environments like fertilizer plants, chlorine processing units, wastewater treatment, and specialty chemical industries. Each fluoroplastic lined gate valve is tested to ensure zero leakage and reliable operation under fluctuating pressure conditions.

As a trusted OS&Y type lined gate valve manufacturer, MVS focuses on providing valves that not only deliver high performance but also offer operational ease and maintenance-free longevity. Our fluorine lined gate valve models are widely preferred for their superior anti-stick surface, which prevents media buildup and ensures consistent flow. For industries requiring the highest standards of chemical resistance, we also offer fluorocarbon resin lined gate valves that provide exceptional thermal and pressure stability.

Specification

ParameterSpecification
Size Range25 mm to 150 mm
Design StandardAPI 600
Testing StandardAPI 598
Flange DimensionsANSI B16.5 - Class 150# /  DIN, BS10, JIS
Face to FaceASME B16.10
Body Lining OptionsFEP / PFA
Lining Spark Test15 KVDC (Body Liners & All Wetted Parts)
Hydro TestBody: 20 Kg/cm², Seat: 10 Kg/cm²

Material of Construction

BodyDuctile Iron / Cast Steel (WCB) / Stainless Steel (304 / 304L / 316 / 316L)
Wedge / Stem (1 Pc.)A351 CF8 / CF8M / CF3 / CF3M
Lining MaterialFEP / PFA
Lining ThicknessMin. 3.0 mm / 5.0 mm overall

Application Industries

oil-gas-industry
Crude Oil & Natural Gas Industry
chemical-processing
Chemical & Petrochemical Industry
water-treatment-filtration-industry
Water & Wastewater Treatment
power-generation-industry
Nuclear & Thermal Power Generation
food-and-beverage-industry
Food & Beverage Industry
pharmaceutical-industry
Pharmaceutical & Biotechnology
pulp-and-paper-industry
Pulp & Paper Industry
mining-mineral-industry
Mining & Mineral Processing
marine-shipbuilding-insutry
Marine & Shipbuilding
hvac-building-services
HVAC & Building Services
automotive-paint-chemical-manufacturing
Automotive & Paint Chemical Manufacturing
environmental-bio-gas-renewable-energy
Environmental & Bio Gas Renewable Energy
steel-metal-processing
Steel & Metal Processing
fertilizer-plants-polymer-production
Fertilizer Plants, Polymer Production
cosmetics-personal-care
Cosmetics & Personal Care
cement-construction
Cement & Construction
chlor-alkali-industry
Chlor-Alkali Industry
mineral-acids-industry
Mineral Acids Industry

Related Valves

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PTFE Lined Gate Valve

Frequently Asked Questions

Can’t find your duty condition here? Send us the media, size, pressure and temperature and we will specify the valve. Contact us

What is a PTFE lined gate valve and how does it work?

A gate valve whose body and all wetted parts are lined in FEP or PFA, with a one-piece wedge and stem in stainless. Turning the handwheel raises or lowers the lined wedge across the bore. Fully open it clears the flow path completely, so unlike a lined butterfly valve there is nothing in the stream — which makes it the lined valve of choice where pressure drop must be as close to zero as possible.

Which body and lining materials are available?

Body in Ductile Iron, Cast Steel (WCB) or Stainless Steel (304, 304L, 316, 316L). Wedge and stem in a single piece of A351 CF8, CF8M, CF3 or CF3M. Lining in FEP or PFA at a minimum 3.0 mm, 5.0 mm overall. The one-piece wedge-and-stem construction removes the joint that is the usual failure point on a lined gate valve.

What size, test pressures and standards apply?

25 mm to 150 mm. Designed to API 600 and tested to API 598, with flange dimensions per ANSI B16.5 Class 150# (or DIN, BS 10, JIS) and face-to-face per ASME B16.10. Hydro test body 20 kg/cm², seat 10 kg/cm², plus a 15 KVDC spark test on the body liners and all wetted parts.

When should I choose a lined gate valve over a lined ball or butterfly valve?

When unrestricted full bore matters more than speed of operation — the wedge clears completely, so there is no pressure drop and no obstruction. It is also the natural retrofit where an existing line already uses gate valves and the flange face-to-face must not change. Where you need quarter-turn speed, choose a lined ball valve; for large bores at lower cost, a lined butterfly valve.

Are you a manufacturer, and what are your minimum order quantity and customization options?

MVS is a manufacturer — building valves at its own works since 1978, ISO 9001:2015 certified — and exports across several continents. The minimum order quantity is 20 pieces. Stainless bodies, PFA lining and DIN, BS 10 or JIS flange dimensions are built to order.

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