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High-Strength Flanged Gate Valve Covers from China Suppliers - Durable Factory Fittings for Industrial Applications

The Aohuan Bright Shell Series standard gauge Flanged Gate Valve Covers are expertly crafted to accommodate a wide range of pipe fittings for both industrial and commercial applications. As leading suppliers in China, we offer these covers in various valve sizes, insulation thicknesses, and bonnet heights to ensure compatibility with most valves. Our factory utilizes high-quality materials and advanced manufacturing techniques to deliver durable and effective solutions for your valve protection needs. Choose Aohuan for reliable valve covers that meet your specific requirements

    Installation Video

    Product Reference

    1. Example: AF03
    A ---- Company brand
    F ---- flange gate valve fitting Covers
    20 ---- Mold number
    2. Customization
    Special models need to send an email to contact the manufacturer to customize.
    3. Colour:
    COLOR

    Product Specifications

    Number D(mm) Inch B(mm) C(mm) D(mm)
    AF20 219 8 5/8 290 210 185
    AF21 244 9 5/8 340 190 215
    AF22 244 9 5/8 340 190 215
    AF23 273 10 3/4 380 170 240
    AF24 273 10 3/4 380 230 240
    AF25 323 12 3/4 405 230 265
    AF26 323 12 3/4 405 255 265
    AF27 355 14 355 275 300
    AF28 323 12 3/4 405 290 265
    AF29 355 14 430 310 300
    AF30 381 15 460 310 310
    AF31 457 18 490 405 345
    AF32 508 20 520 430 345
    AF33 508 20 520 430 345
    AF34 584 23 560 530 405
    AF35 635 25 610 635 430
    AF36 762 30 635 710 485

    Technical Support

    Aohuan provides insulation and external protection not only with high-quality composite PVC external protection system material products, but also with its rich experience in the market of installation and application of insulation external protection and advanced application programs.
    • Choose the most suitable thermal insulation and external protection system based on the specific working conditions
    • Technical Reform of Existing Thermal Insulation and External Protection
    • A brand-new tailored heat preservation and exterior protection product with special-shaped structure
    • Product Maintenance Training

    Physical Property

    Performance Basis of testing Testing result
    Flame ASTM E84 ≤25
    Smog ASTM E84 ≤50
    Specific gravity ASTM 792 1.46
    Anti-swelling strength ASTM D638 7 .000(@yield lb∕㏑²)
    Tensile capacity ASTM D638 400.000(PSI)
    Pendulum impact ASTM D256 15.0(ft.1b.in)
    Aging property ASTM E96 0.03(@0.30")
    Conductivity ASTM D257 Nil
    Anaerobic index GB /T2406.2-2009 33.1%
    Service life Actual life of use > 10 years

    Area of application

    Aohuan composite PVC-based material forming and exterior protection materials can be widely applied in commercial, industrial and civil both indoor and outdoor; The exterior protective material of composite PVC base material is suitable for various pipelines and equipment exterior protective systems with temperature ranging from – 37 ℃ to 260 ℃ , but the exterior surface temperature of insulation layer is lower than 66 ℃ (the national standard is lower than 50 ℃ ).
    • Microelectronics, Photovoltaic, Food, Beverage, Light Industry,
    • Biopharmaceutical, Commercial, Civil Building, Oil Drilling Platform
    • External Insulation of Petroleum, Chemical Industry, Newly Built and Reconstructed Industrial Workshops and Tanks

    Frequently Asked Questions

    Q1: What temperature range is suitable for Aohuan composite PVC exterior protection materials?

    They are suitable for various pipelines and equipment exterior protective systems with temperatures ranging from -37 ℃ to 260 ℃. However, the exterior surface temperature of the insulation layer must be lower than 66 ℃ (national standard requires lower than 50 ℃).

    Q2: What do the letters and numbers in the product reference mean?

    In our product reference (e.g., AF03), "A" stands for the Company Brand, "F" represents flange gate valve fitting Covers, and the following number indicates the Mold Number.

    Q3: Can I customize special models for unique structures?

    Yes, special models can be customized. You can send an email directly to contact the manufacturer to request customized designs for special-shaped structures.

    Q4: What are the fire and safety testing ratings for these PVC materials?

    Based on ASTM E84 testing standards, the materials achieve a Flame rating of ≤25 and a Smog rating of ≤50, ensuring excellent fire safety performance.

    Q5: In which industries can Aohuan PVC exterior protective systems be applied?

    They are widely applied in microelectronics, photovoltaic, food, beverage, light industry, biopharmaceutical, commercial, civil building, oil drilling platforms, petroleum, chemical industry, and industrial workshops/tanks.

    Q6: What services does Aohuan provide for technical support?

    We assist in choosing the most suitable thermal insulation systems based on working conditions, offer technical reform services, design tailored products for special-shaped structures, and provide product maintenance training.

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