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Experience first-hand the meticulousness and dedication that goes into creating each of our high-quality pipe flanges and butt-weld pipe fittings.

Wuliyao Industry Zone, Yanshan County, Hebei Province, China.



For your quick understanding of our products and services, please view FAQs or contact us directly.


What are the sizes of industrial flanges?

Industrial flanges come in a variety of sizes to accommodate different applications. The size of a flange is typically given in terms of the Nominal Pipe Size (NPS), which can range from 1/2 inch to 24 inches according to ANSI (American National Standards Institute) standards. There are also larger sizes available, up to 48 inches or even more, depending on the specific requirements.

Flanges also have different classes that indicate their pressure capacity. These classes include 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, and 2500 LBS. The class, along with the flange size, determines the dimensions such as bolt circle diameter, bolt hole size, thickness, and overall diameter.

It’s important to note that the actual dimensions can vary based on the flange type and standard followed, which could be ANSI, ASME (American Society of Mechanical Engineers), DIN (Deutsches Institut für Normung – German standard), among others. Therefore, it’s crucial to refer to the specific standard or consult with a flange manufacturer or supplier for the precise dimensions.

Which industries use flanges?

Flanges are a crucial component in many industries due to their role in connecting pipes, pumps, and valves to create a smooth and efficient piping system. Here are some of the key industries that use flanges:

  1. Petrochemical Industry: Flanges are widely used in this industry for constructing intricate pipe networks for the transportation and processing of petrochemicals.
  2. Oil and Gas Industry: They play a critical role in oil and gas production, helping connect pipes and equipment in drilling sites, refineries, and transportation facilities.
  3. Construction Industry: Flanges are used in the construction of buildings and infrastructure, particularly in plumbing systems, HVAC installations, and fire protection systems.
  4. Power Generation: In power plants, including nuclear, coal-fired, and hydroelectric facilities, flanges are used to connect pipes and equipment in the complex systems used to generate electricity.
  5. Water Treatment: Flanges are used in water treatment facilities for the assembly of pipe systems that carry water and wastewater.
  6. Shipbuilding Industry: They are used in the construction of ships, particularly in the assembly of piping systems for fuel, water, and waste.
  7. Food and Beverage Industry: In this industry, sanitary flanges are used in piping systems to ensure cleanliness and prevent contamination.
  8. Pharmaceutical Industry: Similar to the food and beverage industry, sanitary flanges are also used in the pharmaceutical industry to maintain sterile environments.

It’s important to note that the type and specifications of flanges used can vary greatly depending on the specific needs and standards of each industry.


What’s the available international standard?

Steel Pipe Fitting:

ANSI/ASME B16.9,ANSI/ASME B16.28, ASME B16.25,ASME B16.49,

GOST 17375, GOST 30753, GOST 17375, GOST 17376, GOST 17378, GOST 17379,

ISO 5251:1981, EN 10253, MSS SP-43,.

Steel Forged Flange:


ASME B 16.47

ASME B 16.48

GOST 12821

GOST 12820

GOST 33259

EN 1092




BS 4504

Steel Pipe:

 ASME B 36.10M and B 36.19M


Can you produce customized fittings or flanges?

Non-Standard pipe flanges or fittings are available, but clients need to supply the drawing with specification data.

Can you mark my logo in the products?

We receive to specify the logo marking content, but the logo pattern can not be too complex, all the patterns are ultimately simplified into lines to present.

Do you have different packaging for exporting to different markets?

Our standard export packaging includes pallets securely wrapped with film and plywood crates. We can adjust the size of the pallet or crate according to the size of the customer’s forklift, the height of the shelf, the size of the product, etc. We also provide customized packaging such as inner boxes, cartons and other special forms of packaging according to customer requirements. All products are packed with pre-printed labels containing barcodes, weight information, etc., for easy distribution. We also guarantee that each product will be securely fixed within the package and shipped in excellent condition.


Pre-sales services

Detailed product information: Providing comprehensive details about the product or service to help you make informed decisions.

Consultations: Offering expert advice to understand your needs and suggest suitable products or services.

Product demonstrations: Showcasing how a product be produced to give you a clear understanding of its features and benefits.

Quotes and estimates: Giving you an idea of the cost involved before they decide to purchase.

Customization options: If applicable, discussing custom options available for the product or service.

On-sale service

1) Consultations: Understanding your needs and recommending appropriate products.

2) Negotiations: Discussing pricing and terms of sale.

3) Financing Options: Providing information on available payment methods and installment plans.

4) Order Processing: Ensuring the smooth handling of the order, from placement to delivery.

5) Customer Support: Addressing any questions or concerns you may have during the purchase.

The goal of on-sale service is to facilitate a smooth, hassle-free purchase experience for you, thereby increasing your satisfaction and loyalty.

After-sale service

Customer Support: Providing assistance to customers who have questions or issues regarding the product or service they purchased.

Warranty Services: Offering repair or replacement services for products during the warranty period.

Maintenance Services: Regular check-ups and maintenance to ensure the product is functioning properly.

Return and Exchange Policies: If a customer is not satisfied with the product, companies usually offer a return or exchange policy within a certain timeframe.

Product Training and User Manuals: Providing training or user manuals to help customers understand and use the product effectively.

Feedback Collection: Gathering customer feedback to understand their level of satisfaction and make necessary improvements.

For precise details on your after-sale services, please refer to your company’s policies or guidelines.


What payment methods do you accept?

Depending on the quantity of the order, and the current market situation, we take different collection methods, for details, you can contact us to inquire.


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  1. Ground Shipping: This involves shipping via land-based methods such as trucks and trains. It’s usually the most cost-effective method for domestic deliveries.
  2. Air Shipping: This is the quickest method for long-distance and international shipments, but it’s also the most expensive.
  3. Sea Shipping: For international shipping, especially for heavy or bulky items, sea freight is often used. It’s slower than air shipping but more cost-effective for large quantities.
  4. Drop Shipping: In this method, products are shipped directly from the manufacturer or wholesaler to the customer, bypassing the retailer.
  5. Express Delivery: This is a premium service for urgent deliveries, providing next-day or even same-day delivery.

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Cangzhou, Hebei, China

Wuliyao Industry Zone, Yanshan County.