PTFE Lined Ball Valve
PTFE Lined Ball Valve Manufacturer
MVS Valves’ PTFE Lined Ball Valve is an advanced flow control solution engineered for handling corrosive, acidic, and hazardous chemical media. Constructed from cast ductile iron with high-performance PTFE lining, this valve is designed for long-lasting service in industries such as chemical processing, pharmaceuticals, petrochemicals, and water treatment. The valve features a full port design, offering unrestricted flow, and a split body two-piece construction that enhances structural integrity and ease of maintenance.
Engineered with DIN face-to-face dimensions, the valve includes a replaceable PTFE seat, making sure bubble-tight shutoff under various operating conditions. Available with manual lever operation up to 100 mm and worm gear operation from 150 mm to 300 mm, the valve allows smooth control with low torque operation. Its glandless design ensures safety in high-risk applications, making it a preferred choice for systems requiring corrosion, acid, and chemical resistance.
The MVS product range includes a variety of linings such as PFA Lined Ball Valves, FEP Lined Ball Valves, PVDF Lined Ball Valves, and Polypropylene (PP) Lined Ball Valves, each selected based on media compatibility. This fluoropolymer lined ball valves provide unmatched protection against aggressive fluids, while Fluoroplastic Lined Ball Valves and Fluorine Lined Ball Valves ensure operational stability across a wide temperature range. Additionally, the Fluorocarbon Resin Lining Ball Valves are tailored for high-endurance industrial demands.
For special applications, MVS also offers Pneumatic Actuated Fully Lined Ball Valve solutions and Plastic Lined Ball Valves that deliver seamless integration with modern automation systems. The valves are available in large sizes such as DN 200 mm (8″) and DN 250 mm (10″), providing scalable options for industrial flow systems. Customers can also choose Stainless Steel SS 304 or SS 316 PTFE, FEP, PFA, PVDF Lined Ball Valves for superior chemical compatibility and longevity.
Specification
| Specification | Details |
|---|---|
| Valve Type | Full Port Lined Ball Valve |
| Valve Size | ½″ to 10″ (DN 15–250) |
| Design Standard | BS EN ISO 17292:2004 (Formerly BS 5351) |
| Flange Drilling | ASA #150 / DIN 2632/2633 / BS 10 Table D, E or F / Customer Specified |
| Face-to-Face Standard | ANSI B16.10 / BS EN 558-1/2 |
| Lining Thickness | 3 to 5 mm |
| Testing Standard | BS EN 12266-1&2 (2003) |
| Hydraulic Test Pressure | Body (Shell) – 20 Kg/cm² Seat – 11 Kg/cm² |
| Pneumatic Test Pressure | Seat – 6 Kg/cm² |
| Spark Test | 15 KVDC |
| Features | Maintenance-free glandless live load design One-piece integral ball stem combination Minimum cavity and full-flow efficiency No backlash in stem and ball after prolonged service Exceptionally low torque compared to plug valve |
| Optional Components | Pneumatic actuator Gear box |
Material of Construction
| Lined Side Piece | Ductile Iron / WCB (FEP Lined) |
| Lined Integral Ball | ASTM A216 Gr. WCB (FEP Lined) |
| Top Cover | ASTM A216 Gr. WCB |
| Lever Boss | ASTM A216 Gr. WCB |
| Lever Rod | MS |
| Seat Ring | PTFE |
| Sphear Bush | PTFE |
| Flexible Diaphragm | PTFE |
| Diaphragm Backup | SS |
| Thrust Washer | MS (Nickel Plated) |
| Disc Spring | Spring Steel (Nickel Plated) |
| Hex Head Bolt | MS |
| Hex Nut | MS |
| Spring Washer | Spring Steel |
| Hex Head Bolt for Top Cover | MS |
| Hex Head Screw for Lever Boss | SS |
| Plain Washer for Lever Boss | SS |
| Grub Screw (Allen Cap) | MS |
| Body Material Options | Ductile Iron GGG40.3 / ASTM A395 Cast Steel ASTM A216 Gr. WCB ASTM A351 Gr. CF8 / SS 304 ASTM A351 Gr. CF8M / SS 316 |
| Lining Material Options | PFA – ASTM D 3307 FEP – ASTM D 2116 PVDF – ASTM D 3222 PP – ASTM D 4101 HDPE |
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
Related Valves
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PTFE Lined Ball 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 ball valve and how does it work?
It is a quarter-turn valve whose entire wetted surface — body, ball and stem — is lined with PTFE, so the process media never touches the metal. A one-piece integral ball-stem rotates 90° inside a replaceable PTFE seat to give bubble-tight shutoff, and the full-port, split-body two-piece construction means no flow restriction.
Operation is by manual lever up to 100 mm and worm gearbox from 150 mm upward, with pneumatic actuators available. The glandless live-loaded design keeps torque well below an equivalent plug valve, needs no gland packing adjustment, and leaves no backlash between stem and ball after prolonged service.
Which body and lining materials are available, and how do I choose?
Body options are Ductile Iron GGG40.3 / ASTM A395, Cast Steel ASTM A216 Gr. WCB, ASTM A351 Gr. CF8 (SS 304) and Gr. CF8M (SS 316). Lining options are PFA (ASTM D3307), FEP (ASTM D2116), PVDF (ASTM D3222), PP (ASTM D4101) and HDPE, applied at 3–5 mm thickness. The seat ring, sphere bush and flexible diaphragm are PTFE.
PTFE covers most chemical service. Specify PFA where the media is highly permeating — chlorine, bromine or fluorine — or where higher temperature and a full vacuum rating are needed. Because the liner is what seals, flange bolts must be tightened evenly in a cross pattern: over-torquing damages it.
What size, pressure rating, temperature limit and standards apply?
Sizes run from ½″ to 10″ (DN 15–250) at a PN10 nominal rating. Flange drilling is to ASA #150, DIN 2632/2633, BS 10 Table D, E or F, or customer-specified, with face-to-face dimensions per ANSI B16.10 / BS EN 558-1/2.
The working temperature depends on the liner: PTFE −20 °C to +180 °C, PFA up to 260 °C, FEP up to about 150 °C, PVDF up to about 140 °C and PP up to about 90 °C. Derate the pressure as temperature rises.
The valve is designed to BS EN ISO 17292:2004 (formerly BS 5351) and tested to BS EN 12266-1 & 2 (2003) — hydraulic shell test 20 kg/cm², hydraulic seat test 11 kg/cm² and pneumatic seat test 6 kg/cm² — plus a 15 KVDC spark test on every valve to confirm the lining carries no pinholes.
How does it compare with a PTFE sleeved plug valve?
Both are quarter-turn and fully lined, so both suit corrosive duty. The ball valve operates at significantly lower torque and its full-port bore does not restrict flow, which makes it the better general-purpose choice for on/off service on clean acids, solvents and chemical transfer lines.
A sleeved plug valve seals better in slurry and frequent-cycling duty, where a sleeve tolerates particulate that would score a ball seat, but it needs more torque to operate. For most corrosive isolation duty the ball valve is the default.
Are you a manufacturer, and what are your minimum order quantity and customization options?
MVS has manufactured valves since 1978 — a manufacturer, not a trader — is ISO 9001:2015 certified, and exports across several continents. The minimum order quantity is 20 pieces.
Custom body and lining combinations, special flange drilling and fully actuated assemblies are built to order. The seat ring and diaphragm are field-replaceable, so a valve can be serviced in place rather than replaced. Send us your media, operating temperature, line size and pressure and we will confirm the specification and delivery schedule.