Features
Advantages
Material saving: When the pipe material is special and expensive, low-grade material flanges can be used in combination with rings made of the same material as the pipe to reduce costs.
Ease of construction: The flange can move on the pipe end, making it easier to align the flange bolt holes during connection, and it can also prevent changes in the flange bolt holes when replacing equipment in the future.
Protecting the pipeline: Loose flanges can reduce the stress on the pipeline caused by thermal expansion and contraction, vibration, and other factors, protecting the pipeline from damage.
Wide applicability: Suitable for connections of non-ferrous metals such as steel, aluminum, and stainless acid-resistant steel containers, as well as corrosion-resistant pipelines.
Material selection
Carbon steel: Such as ASTM A105, 20#, Q235, 16Mn, etc., which have good strength and toughness, are relatively low in price, and are suitable for general industrial pipeline systems.
Stainless steel: Such as ASTM A182 F304, 304L, F316, 316L, etc., which have excellent corrosion resistance and high-temperature resistance, are commonly used in pipeline systems for corrosive media or high-temperature environments.
Alloy steel: Such as ASTM A182 F1, F5a, F9, F11, F12, etc., which have high strength, hardness, and good corrosion resistance and high-temperature resistance, suitable for high-pressure, high-temperature, or highly corrosive pipeline systems.
Non-ferrous metals: Such as aluminum, copper, etc., which have good corrosion resistance and thermal conductivity, are commonly used in some special pipeline systems, such as in the food, beverage, and pharmaceutical industries.
Manufacturing standards
National standard: GB/T 9112-2000 (GB9115.1-2000～GB9115.4-2000), which specifies the type, size, technical requirements, etc., for welded loose flanges.
American standard: ANSI B16.5 Class 150, 300, 600, 900, 1500 (WN, SO, BL, TH, LJ, SW), which is a commonly used flange standard in the United States, clearly specifies the relevant parameters and requirements for loose flanges.
Japanese standard: JIS 5K, 10K, 16K, 20K (PL, SO, BL, WN, TH, SW), which is widely used in Japan and some Asian countries and regions.
Hongya Machinery Parts Co., Ltd. is located in the southern industrial zone of Renqiu City, at the center of the Beijing-Tianjin-Shijiazhuang economic circle. The transportation is convenient, the environment is beautiful, and the geographical location is unique.
Our factory adheres to the principle of "seeking development with credibility and survival with quality," continuously developing in the increasingly fierce market competition. The production equipment is constantly improving, and the quality assurance system is continuously being perfected.
The products are of high quality and low price, and the after-sales service is attentive. Based on the principle of "people-oriented and quality first," the company has won unanimous praise from customers and peers.
In the future, we will continue to work hard to improve our products and provide benefits to our customers.
Our factory solemnly promises: "To honor contracts, uphold credibility, deliver goods on time, and guarantee quality." We welcome new and old customers to discuss business.
Key words:
Loose flange ring
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