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China Industrial Pipe Fittings Manufacturer, Supplier, Factory

We have been commitment to offer the aggressive value ,exceptional goods good quality, likewise as fast delivery for Industrial Pipe Fittings, Flange, Alloy Flange, Dual Phase Steel Flange, Carbon Steel Flange, For anyone who is fascinated in any of our products and solutions, remember to come to feel totally free to get in touch with us for more facts. We hope to cooperate with additional good friends from everywhere in the world.
Industrial Pipe Fittings, Our company will continue to serve customers with best quality, competitive price and timely delivery & the best payment term! We sincerely welcome friends from all over the world to visit& cooperate with us and enlarge our business. If you are interested in our items, make sure you do not hesitate to contact us, we'll be happy to provide you with further information!

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  • Threaded Flange

    Threaded Flange

    Threaded flanges are flanges with internal or external threads that are connected by screwing the threads on the flange to the threads on the pipe or equipment against each other. This type of flange is usually used in low-pressure and low-temperature operating environments because of its relatively low connection strength, but easy installation and removal.

    SIZE:
    DN10(3/8") DN15(1/2") DN20(3/4") DN25(1") DN40(1-1/2")
    DN50(2") DN80(3") DN100(4") DN125(5") DN150(6")
    DN200(8") DN250(10") DN300(12") DN350(14") DN400(16")
    DN450(18") DN500(20") DN550(22") DN600(24")
    Customized Size Consult Us

  • Porous Plate Flange

    Porous Plate Flange

    SN Valve is a leading China porous plate flange manufacturer. Porous filter plate flange, i.e. a component that combines a porous filter plate with a flange. This kind of component is usually used in occasions where filtration and connection are required, such as filtration devices in piping systems, separation equipment for liquids or gases, and so on. The porous filter plate flange is connected to other pipelines or equipment through flange connection, and at the same time, the filtration function of the porous filter plate is utilized to realize the filtration and separation of liquids, gases or solid particles.

    SIZE:
    DN10(3/8") DN15(1/2") DN20(3/4") DN25(1") DN40(1-1/2")
    DN50(2") DN80(3") DN100(4") DN125(5") DN150(6")
    DN200(8") DN250(10") DN300(12") DN350(14") DN400(16")
    DN450(18") DN500(20") DN550(22") DN600(24")
    Customized Size Consult Us

  • High Pressure Butt Welding Flange

    High Pressure Butt Welding Flange

    High quality high pressure butt welding flange is offered by China manufacturer SN Valve. High-pressure butt-welding flanges are the type of flanges that are butt-welded to the pipeline through the long neck, and their structural features include the long neck, the flange face and the welding bevel. The design of the long neck part makes the connection between the flange and the pipe stronger and can withstand higher pressure and temperature. The flange face is used to make contact with the sealing gasket to form an effective seal. The design of the welding groove is to facilitate the welding of the flange and the pipeline.

    SIZE:
    DN10(3/8") DN15(1/2") DN20(3/4") DN25(1") DN40(1-1/2")
    DN50(2") DN80(3") DN100(4") DN125(5") DN150(6")
    DN200(8") DN250(10") DN300(12") DN350(14") DN400(16")
    DN450(18") DN500(20") DN550(22") DN600(24")
    Customized Size Consult Us

  • Butt Welding 180 Degrees LR Return

    Butt Welding 180 Degrees LR Return

    SN Valve is a leading China butt welding 180 degrees lr return manufacturer. Butt welding 180 degrees lr return elbows are connected to the pipeline by welding and have a 180-degree bending angle and a long bending radius, hence the name long radius (LR) return elbow. The design of this elbow allows for smoother fluid flow through the pipeline, reducing flow resistance and pressure loss, while providing more space to accommodate piping layout and installation.

    SIZE:
    DN10(3/8") DN15(1/2") DN20(3/4") DN25(1") DN40(1-1/2")
    DN50(2") DN80(3") DN100(4") DN125(5") DN150(6")
    DN200(8") DN250(10") DN300(12") DN350(14") DN400(16")
    DN450(18") DN500(20") DN550(22") DN600(24")
    Customized Size Consult Us

  • Marine Flange

    Marine Flange

    High quality marine flange is offered by China manufacturer SN Valve. Marine flange is a standardized connecting part, which is usually used in piping system on ships to achieve reliable connection between pipes and pipelines, pipelines and equipments. Marine flanges are mainly used in the transmission system of water, oil, gas and other fluids on ships to ensure the unobstructed flow of fluids. At the same time, the maintenance and replacement of pipelines will be easier, improving the reliability and safety of ships.

    SIZE:
    DN10(3/8") DN15(1/2") DN20(3/4") DN25(1") DN40(1-1/2")
    DN50(2") DN80(3") DN100(4") DN125(5") DN150(6")
    DN200(8") DN250(10") DN300(12") DN350(14") DN400(16")
    DN450(18") DN500(20") DN550(22") DN600(24")
    Customized Size Consult Us

  • Socket Welding Coupling

    Socket Welding Coupling

    SN Valve is a leading China socket welding coupling manufacturer. Socket weld pipe hoop is a kind of pipe fitting that connects two pipes together by socket welding. Its structure is characterised by the design of a socket at one end, which can be inserted into the end of another pipe and welded to make the two close together. Socket welded pipe hoop is usually machined from round steel or ingot after die forging, with key dimensions such as socket hole diameter, socket hole wall thickness and socket hole depth.

    SIZE:
    DN10(3/8") DN15(1/2") DN20(3/4") DN25(1") DN40(1-1/2")
    DN50(2") DN80(3") DN100(4") DN125(5") DN150(6")
    DN200(8") DN250(10") DN300(12") DN350(14") DN400(16")
    DN450(18") DN500(20") DN550(22") DN600(24")
    Customized Size Consult Us

  • Stainless Steel vs Carbon Steel Flanges – Revealing Long-Term Cost Savings

    In 2023, Saudi Aramco’s Jazan refinery replaced 1,200 carbon steel flanges with 316L stainless steel, cutting maintenance costs by 55% over 18 months. Coastal humidity caused rapid carbon steel corrosion, while 316L’s chloride resistance extended service life from 3 to 15+ years.

  • What is a Tube Sheet and Why is It Essential in Heat Exchangers and Other Industrial Applications?

    A Tube Sheet is a critical component used in heat exchangers, pressure vessels, and other industrial systems. It is a flat plate that features a series of holes or perforations designed to accommodate tubes or pipes. The tubes are inserted into these holes, and the Tube Sheet serves as a structural support, ensuring that the tubes remain securely in place while allowing for fluid or heat transfer between the different sections of the system. Tube Sheets are typically made from materials such as stainless steel or other corrosion-resistant alloys due to their durability and resistance to harsh operating conditions.

  • Preventing Chloride Stress Corrosion: Why 316L Stainless Steel Flanges Outperform Carbon Steel in Coastal Plants

    In 2023, Wenzhou Shuangneng Valve Co., Ltd. helped an Indonesian power plant replace carbon steel flanges with 316L stainless steel, reducing chloride-induced failures by 40% within 12 months. Coastal salt spray and humidity accelerated corrosion in carbon steel, while 316L’s molybdenum-rich alloy prevented stress cracking.

  • What is a Stainless Steel Flange and What is Its Purpose?

    A stainless steel flange is a mechanical component used to connect pipes, valves, pumps, and other equipment in a piping system. It provides a secure and leak-proof joint while allowing for easy assembly and disassembly. Flanges are widely used in industries such as oil and gas, chemical processing, water treatment, and power generation.

  • Comprehensive Guide to Stainless Steel Elbows: Types, Applications, and Benefits

    Discover the benefits, types, and applications of stainless steel elbows. Learn how to choose the right fitting for your industry and explore premium ASTM-certified solutions at SHUANG NENG

  • Main design of stainless steel non-standard flange

    Stainless steel non-standard flange is a disc-shaped component commonly used in pipeline engineering, and flanges are used in pairs.

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