Lined Lug butterfly valve-Pov valve

Disc:CF8M,1.4462,CF8M FEP lined,CF8 EPDM lined
Body style: lug
Nominal diameter:2″ – 24″ (DN50mm – DN600mm)
Top flange:ISO5211
Operating pressure:16bar for DN50-DN200, 10bar for DN250-DN600
Flange accommodation:EN 1092 PN 6/PN10/PN16,ASME Class 150,JIS 5K/10K


    Lined lug butterfly valve

    Lined Butterfly Valve – the ultimate solution for your industrial flow control needs! This cutting-edge valve is designed to deliver exceptional performance, durability, and ease of operation for a wide range of applications. Let’s dive into the remarkable features that set this valve apart from the rest.

    Design & Primary Features
    The Lined ptfe valve is expertly crafted with a robust, disc-centered design that enables it to withstand extreme operating conditions. With a high-quality PTFE lining, our valve ensures superior resistance to aggressive chemicals and prevents corrosion, thereby extending its lifespan. Additionally, the valve boasts a high Cv (flow coefficient) rating that results in minimal pressure losses and maximized flow capacity, making it perfect for high-demands process applications.

    Versatile Industrial Applications
    The Lined pfa butterfly valve is suitable for a diverse range of industries, including:

    • Chemical and petrochemical
    • Oil and gas
    • Water and wastewater treatment
    • Pulp and paper
    • Food and beverage
    • Pharmaceutical

    This valve’s remarkable adaptability allows manufacturers and consumers to regulate the flow of a wide variety of media – from gases and liquids to slurry and solids-laden fluids – all while maintaining exceptional shutoff capabilities.

    Unparalleled Durability & Reliability
    Designed with Stainless Steel 316 and Carbon Steel material options, the Lined Lug butterfly valve promises long-lasting durability in even the most challenging environments. Our valve’s superior quality construction and materials guarantee optimum performance, significantly reducing maintenance requirements and downtime.

    Effortless Operation
    The Lined Lug butterfly valve features a user-friendly design for easy installation, maintenance, and operation. With a comprehensive range of pneumatic actuator controls, our valve ensures smooth, accurate, and responsive control across various applications.

    Don’t settle for anything less than the best when it comes to the flow control solutions in your industry. Experience the unparalleled quality and efficiency of the Lined Lug butterfly valve today. Contact us at, or visit our website butterfly valve to learn more about the specifications of our revolutionary valve and request a quote.
    Elevate your industrial flow control game with the Lined Lug butterfly valve – join the countless companies who have already made the switch!

    Lined lug butterfly valve is split body designed for a wide variety of liners such as PTFE, EPDM, NBR, FPM, PU to fit a wide range of applications.

    PTFE is the preferred material for corrosive applications in chemical industry.
    PU is the preferred material for abrasive applications.
    EPDM is the preferred rubber for water industries.
    NBR is the preferred rubber for oil transportation.
    FPM is the preferred rubber for wide range of medium composition and temperature.
    Lug design makes the valve convenient for disassembling between flanges and work well for dead end service with short length in pipe line.


    • The ISO5211 direct mounting pad provides a seamless automation solution
    • Three high-quality, PTFE impregnated SS316L bearings. These bearings are meticulously designed to provide precise alignment for the disc-shaft, ensuring outstanding performance and longevity.
    • 3 layers sealing system ensures environment protection
    • PTFE seat and rubber seat version interchangeable each other• PTFE-liner for chemically toxic and highly corrosive media, rubber liner for various of industry applications
    • Silicon rubber energized back behind PTFE seat makes the sealing between liner and disc stable and offer a wide range of temperature
    • One-piece disc-shaft design reduces the valve torque and increases Kv
    • PTFE or rubber lined disc design option avoids high cost by expensive metal in corrosive applications
    • Achieve a bubble-tight shut off at the full pressure rating, ensuring reliable and secure operation.

    Lined lug butterfly valve Explosion


    No. Part name Material
    1 Body GGG40
    2 Disc/shaft one piece CF8M 1.4462 CF8M FEP lined CF8 EPDM lined
    4 Seat Energizer SR
    5 Weather seal NBR
    6 Bearing PTFE impregnated SS316L
    7 Gland PTFE
    8 Screw SS304
    9 Belleville washer SS304
    10 Stuffing collar SS316
    11 O ring FPM
    12 V ring PTFE


    Body style Lug
    Nominal diameter 2″ – 24″ (DN50mm – DN600mm)
    Top flange ISO5211
    Operating pressure 16bar for DN50-DN200, 10bar for DN250-DN600
    Temperature range -20 °C to + 180 °C (depending on pressure, medium and material)
    Flange accommodation EN 1092 PN 6/PN10/PN16
    ASME Class 150
    AS 4087 PN10/ PN16
    JIS 5K/10K
    Operation Hand lever, gear box, pneumatic actuator, electric actuator


    SIZE A B C D D1 E F d G H L WT(kg)
    50 2″ 126 65 13.5 117 147 11 50 8 65 25 43 2
    65 2 1/2″ 138 79 13.5 131 161 11 50 8 65 59 46 3
    80 3″ 138 79 13.5 176 206 11 50 8 65 59 46 3
    100 4″ 167 97 17.5 206 236 14 70 10 90 86 52 5
    125 5″ 180 129 17.5 236 272 14 70 10 90 112 56 7
    150 6″ 203 142 18.5 258 294 17 70 10 90 140 56 8
    200 8″ 228 172 18.5 321 363 17 102 12 125 191 60 13
    250 10″ 266 213 24.5 395 437 22 102 12 125 241 58 22
    300 12″ 291 242 24.5 461 509 22 102 12 125 290 78 31
    350 14″ 332 262 30 511 571 27 125 14 150 331 78 44
    400 16″ 363 303.5 30 580 640 27 125 14 150 377 102 64
    450 18″ 397 324.5 39 630 702 36 140 18 175 425 114 86
    500 20″ 425 357 39 700 772 36 140 18 175 474 127 116
    600 24″ 498 419 49 823 913 46 165 22 210 570 154 179


    What is a lined ptfe pfa valve?

    A lined PTFE PFA valve represents the pinnacle of industrial valve engineering, epitomizing our unwavering commitment to innovation and excellence in the realm of fluid handling technologies. At the heart of these valves lies the integration of premium Polytetrafluoroethylene (PTFE) or Perfluoroalkoxy alkanes (PFA) linings, materials lauded for their superior chemical inertness and thermal resilience.

    Our lined valves are masterfully crafted to deliver unparalleled performance in the most demanding of environments, where aggressive media could compromise lesser valve constructions. The selection of PTFE or PFA as a liner within these valves ensures an elite defense against corrosive processes, safeguarding the system’s integrity through its exceptional resistance to a wide array of chemicals.

    The difference between lined ptfe valve and lined pfa valve?

    Lined PTFE Valves: PTFE, commonly known by the brand name Teflon, stands as a paragon of industrial-grade linings. Characterized by its extraordinary chemical inertness, PTFE lining is virtually impervious to a vast spectrum of corrosive fluids across an expansive temperature range, typically from -260°C to +260°C (-436°F to +500°F). Lined PTFE valves are the quintessential choice when exceptional resistance to chemical attack is the prime requisition.

    The molecular structure of PTFE, with its high crystallinity and low surface energy, also endows it with non-stick properties. This quality ensures minimal adherence of materials within the valve, thereby facilitating purity and ease of maintenance. Given these characteristics, PTFE-lined valves are the industry standard for applications where cleanliness and non-contamination are paramount, such as in pharmaceuticals and food processing sectors.

    Lined PFA Valves: PFA, while sharing many of the resistant properties of PTFE, distinguishes itself through its superior melt processability. This allows PFA to be injection-molded or extruded, enabling manufacturers to create more intricate valve shapes and tighter, more uniform linings. The melting point of PFA is slightly lower than that of PTFE, typically around 260°C to 310°C (500°F to 590°F), however, PFA excels in its ability to withstand higher continuous service temperatures.

    Moreover, PFA lined valves offer enhanced mechanical strength and stress crack resistance compared to PTFE. This renders them particularly adept for applications involving high pressure and elevated temperature conditions, representing a culmination of endurance and resilience in the face of rigorous operational demands.

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    What are the applications of lined ptfe butterfly valves?

    In the sophisticated echelons of fluid control and regulation, lined PTFE butterfly valves stand as a vital component in a multitude of applications, each demanding uncompromising levels of performance and reliability. Our company’s lined PTFE butterfly valves, certified and refined through stringent quality control protocols, are designed to meet and exceed the rigorous requirements of diverse industries.

    Chemical Processing: Lined PTFE butterfly valves are pivotal within the chemical processing industry, where they must withstand aggressive chemicals and solvents. Their exceptional chemical inertness ensures that reactions or contamination events are mitigated, thereby upholding the integrity of complex chemical synthesis processes.

    Pharmaceutical Industry: The pharmaceutical sector reveres the ultra-pure environment which our valves facilitate. The innate non-reactivity and non-stick characteristics of PTFE-lined butterfly valves guarantee the absence of product adhesion and cross-contamination, thus fulfilling the stringent standards for cleanliness and sterility.

    Food and Beverage Production: Food safety is paramount, and so is our commitment to it. The FDA-compliant materials used in our butterfly valves ensure that they interface seamlessly with food and beverage production lines, offering both a sanitary solution and robust performance under washdown conditions.

    Semiconductor Manufacturing: In semiconductor manufacturing, even the slightest impurity can be catastrophic. Our lined PTFE butterfly valves are integral to maintaining the pure, contaminant-free conditions necessary for the production of semiconductors, ensuring process integrity at each step.

    Water Treatment Facilities: Our expertise extends into water treatment plants, where corrosion resistance is a necessity. Lined PTFE butterfly valves operate reliably in various stages of water treatment, from harsh chlorination environments to the delicate balance required in reverse osmosis systems.

    Pulp and Paper Industry: Paper manufacturing involves corrosive substances like chlorine dioxide and various bleaches. Here, our valves provide the chemical resistance necessary to handle these substances, thus optimizing the pulp bleaching process and enhancing system longevity.

    Mining and Minerals Processing: The mining industry presents a harsh environment laden with abrasive and corrosive slurries. Lined PTFE butterfly valves are employed for their robustness and endurance, providing control over slurry flow with precision and reliability.

    Lined lug valve ANSI 150LB flange size


    Lined lug valve ANSI 150LB flange size