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Factory Stainless Steel Weld Neck Flange/Weld Neck Flange for Leak-proof Joint for Strong Corrosion/Flammable and Explosive

Available for enquiry 0.0 · 0 reviews
USD

$ 30.00 30.0 USD $ 30.00

Not Available For Sale

Minimum order quantity: 50 Units

Key attributes

View all
Bolt Hole Quantity
4-28
Bolt Hole Diameter
14mm-55mm(0.55in-2.17in)
Surface Treatment
Pickling & Passivation
Application
Chemical Industry
Place of origin
China, Hebei
Selling Units
Single item
Product description

Highlights at a glance

  • Ultra High Pressure & Temperature Resistance Integral forged body with full penetration weld neck design withstands high pressure and thermal shock, suitable for harsh working conditions such as high-temperature steam and high-pressure oil/gas.
  • Zero Leakage Sealing Performance Precision-machined serrated sealing face forms a reliable seal with gaskets, effectively preventing leakage of flammable, explosive, and highly corrosive media.
  • Excellent Corrosion Resistance Stainless steel material with pickling and passivation treatment offers acid and alkali resistance, suitable for harsh corrosive environments like chemical plants and sewage systems.
  • Long Service Life & High Reliability Uniform stress distribution provides excellent fatigue and vibration resistance, with a service life far exceeding that of standard slip-on flanges, reducing long-term maintenance costs.
  • Integral Forging Process Monolithic forged forming, with dense structure free of pores and sand holes, offering excellent strength and toughness to eliminate hidden risks of welding defects.
  • Precision Dimensional Control Manufactured strictly in accordance with ASME B16.5 / HG standards, with minimal errors in bore diameter, bolt hole positions, and sealing face roughness for high installation compatibility.
  • Standardized Surface Treatment Precision machining + spiral serrated sealing face processing, combined with pickling and passivation treatment, providing rust and corrosion resistance while enhancing sealing bite performance.
  • Full Penetration Weld Neck Design Tapered neck structure forms a seamless connection with the pipe, integrating with the pipe after welding to evenly distribute stress and reduce pipeline damage caused by thermal expansion and contraction.
  • Suitable for pipelines of petroleum, chemical, natural gas, refineries, power plants, sewage treatment, seawater desalination, LNG and hydrogen systems, as well as connections for key equipment.
    • Frequently asked questions

    Because we possess the following irreplaceable advantages 23+ Years of valve manufacturing experience; Direct Factory pricing with no intermediary costs; Multi-Standard JIS, DIN, ANSI, GB compliant products; Full Service from design to lifetime support

    You get what you pay for. We uphold strict quality standards with no compromise on workmanship and materials. Many lookalike products on the market are slightly cheaper but much lower in quality. The quality gap may not be noticeable from pictures. However, upon receiving the goods, you will clearly find our products outperform competitors in raw materials, overall quality, material selection, manufacturing craftsmanship, product weight and every structural detail.

    Sure, we can offer Customized valves, OEM and ODM Available. Our product engineers all have 25 years of industry experience.

    We are a direct manufacturer. You can judge a real factory by three points. First, whether it has its own engineers. Engineers are costly and hold core product data, so they are never lent to other firms. Second, whether it offers reliable after-sales service. Factories have professional technicians with solid product knowledge to support after-sales work well. Third, whether factory visit is allowed. Our company satisfies all the three conditions.

    Yes, we could offer charged sample and the cost can be reduced from following batch quantity order. As ourproducts are too heavy, sample freight will not be covered at our side.

    We support DHL, UPS, EMS, FedEx, SF Express, truck transportation, railway transportation, air freight and sea freight.
    Description images
    Product detail
    Product detail
    Product detail
    Packaging and fulfilment
    • Step 1

      Payment and order readiness

      Minimum order: 50 Units

      Payment terms, specifications, and order details are confirmed before preparation begins.

    • Step 2

      Preparation

      14 days

    • Step 3

      Packaging and dispatch

      Ocean freight via Maersk · Approx. shipping fee: $ 0.84 for 1 unit · Transit time: Est. 17-24 days

      Final packing, freight, and delivery dates are confirmed before dispatch.

    Technical specifications
    Other details 9 fields
    Bolt Hole Quantity
    4-28
    Bolt Hole Diameter
    14mm-55mm(0.55in-2.17in)
    Surface Treatment
    Pickling & Passivation
    Application
    Chemical Industry
    Place of origin
    China, Hebei
    Selling Units
    Single item
    Material (Product option)
    Stainless Steel
    Size (Product option)
    90mm-1320mm(3.54in-51.97in)
    Type (Product option)
    plate flange
    Lead time
    14 days
    Minimum order
    50 Units

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