PTFE Lined Reducing Tee
PTFE Lined Reducing Tee Manufacturer
Mayur (Valves) System Private Limited, an ISO 9001:2015-certified company, has been a trusted PTFE Lined Reducing Tee manufacturer and exporter since 1978. We export to 40+ countries worldwide, focusing on consistent quality, timely delivery, and a smooth customer experience. Our PTFE Lined Reducing Tees are designed for dependable performance in demanding industrial applications and serve clients across Europe, North America, the Middle East, Southeast Asia, Russia, and other international markets with reliable solutions and technical expertise. We deliver precision-engineered fittings designed for safe and efficient flow distribution across pipelines handling corrosive, toxic, or high-purity media. Our PTFE-Lined Reducing Tees provide optimal flow control where inlet and outlet diameters differ—without compromising on mechanical integrity or corrosion resistance.
Each reducing tee is constructed with a durable cast steel or stainless steel body, internally lined with high-grade PTFE or PFA fluoropolymer to ensure maximum chemical compatibility. Designed for aggressive media such as strong acids, alkalis, solvents, and chlorinated compounds, these fittings can handle service temperatures ranging from –40 °C to +230 °C, and are vacuum-capable.
Available in sizes from ½″ to 24″ (DN 15–600) and rated for ANSI Class 150/300 or PN 10–25 pressure systems, these tees comply with global standards including ASTM F1545, ASME B16.9, and ISO. All wetted surfaces are formed from heavy-wall transfer-moulded PTFE or PFA, offering superior resistance to permeation and wear, even under continuous use in challenging chemical environments. At MVS, our PTFE Lined Reducing Tees are typically supplied with investment cast steel bodies as standard. For customized configurations—such as rotating flanges or special dimensional requests—we provide fabricated solutions tailored to your application requirements. Our manufacturing scope also includes PVDF, FEP, and PP linings, extending the versatility of our tee fittings. Whether you operate in pharmaceuticals, petrochemicals, fertilizers, or water treatment, MVS offers high-integrity lined fittings engineered to perform with confidence in the most demanding process conditions.
Specification
| Specification | Details |
|---|---|
| Size Range | 25 mm to 200 mm (Larger sizes on request) |
| Type | Unequal or Reducing Tee |
| End Connection | Both Sides Fixed Flanges – Rotating – Fixed On/Off Centres |
| Flange Dimensions | DIN PN10/16, BS 10, ASME 150 / 300, Mixed |
| Lining Material | Moulded FEP, PFA |
| Lining Options | PVDF, PP, HDPE |
| Lining Thickness | Minimum 3.5 mm / 6.0 mm overall (±1.0 mm Tolerance) |
| Lining Spark Test | 20 KVDC After Lining |
| Hydraulic Test | 29 Kg/cm² After Lining |
| Special Geometry | Non-standard dimensions; sizes above 6″ fabricated from SCH 40 pipe |
| Optional Flange Drilling | DIN 2632 / 2633, BS 10 Table D, E, F (on request) |
Material of Construction
| Body Materials | Steel Fabrication – ASTM A234 Gr.WPB Ductile Iron GGG40.3 / ASTM A395 Cast Steel ASTM A216 Gr. WCB Stainless Steel ASTM A312 TP 304 / 316 (SCH-40) |
| Flange Materials | IS 2062 Plates ASTM A105 Stainless Steel CF8 (SS 304) / CF8M (SS 316) |
| Liner Types | Virgin PTFE or Anti-Static (Static Dissipating) PTFE |
| Design Features | One-piece steel construction Wetted parts made from heavy wall transfer moulded fluoropolymer Fabricated for specials and tees with rotating flanges |
| Extras | Earthing Studs / Lugs, Vent Extensions |
Application Industries
Crude Oil & Natural Gas Industry
Chemical & Petrochemical Industry
Water & Wastewater Treatment
Nuclear & Thermal Power Generation
Food & Beverage Industry
Pharmaceutical & Biotechnology
Pulp & Paper Industry
Mining & Mineral Processing
Marine & Shipbuilding
HVAC & Building Services
Automotive & Paint Chemical Manufacturing
Environmental & Bio Gas Renewable Energy
Steel & Metal Processing
Fertilizer Plants, Polymer Production
Cosmetics & Personal Care
Cement & Construction
Chlor-Alkali Industry
Mineral Acids Industry
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PTFE Lined Reducing Tee
Frequently Asked Questions
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What is a PTFE lined reducing tee and when is it used?
A tee whose branch is a smaller nominal bore than the run, lined throughout with moulded FEP or PFA. It is used wherever a smaller line is taken off a main — sample points, dosing injections, instrument connections and secondary feeds. Using a reducing tee rather than an equal tee plus a reducer removes one lined fitting and one flange pair from the run.
Which body, flange and liner materials are available?
Body in steel fabrication to ASTM A234 Gr. WPB, Ductile Iron GGG40.3 / ASTM A395 or cast steel. Flanges from IS 2062 plate, ASTM A105, CF8 (SS 304) or CF8M (SS 316). Lining in moulded FEP or PFA with PVDF, PP and HDPE options, at a minimum 3.5 mm, 6.0 mm overall. Liner types are virgin PTFE or anti-static (static dissipating) PTFE. Wetted parts are made from heavy wall transfer material in a one-piece steel construction.
What sizes and test standards apply?
25 mm to 200 mm, with larger sizes on request; above 6″ the fitting is fabricated from SCH 40 pipe. Spark tested at 20 KVDC and hydraulically tested at 29 kg/cm² after lining. Flange dimensions DIN PN10/16, BS 10, ASME 150/300 or mixed, with DIN 2632/2633 and BS 10 Table D, E, F drilling on request.
When do I need anti-static PTFE rather than virgin PTFE?
When the line carries a non-conducting fluid at velocity — solvents, hydrocarbons and some organics. PTFE is an excellent insulator, so flowing liquid can build a static charge on the liner surface with no path to earth, and the discharge can pinhole the liner or, in a flammable service, ignite vapour. Anti-static PTFE is carbon-loaded so the charge drains away, and it is used with earthing studs bonding the steel shell.
Are you a manufacturer, and what are your minimum order quantity and customization options?
MVS manufactures at its own works — since 1978, ISO 9001:2015 certified — and exports across several continents. The minimum order quantity is 20 pieces. Anti-static liners, non-standard geometry, rotating and loose flanges, earthing studs and vent extensions are built to order.