Type |
Plate flange ,Lap Joint Flange ,Threaded flange, Socket Welding Flange, Blind Flange, Slip on Flange |
Technics |
Forged,Cast. |
Size |
1/2"-80"(DN15-DN2000) |
Pressure |
150 lbs - 2500lbs PN6-PN250 0.6MPa-32MPa 5K-30K |
Standard |
EN,DIN,UNI,BS,NF,ANSI,ASME,JIS,KS,API,MSS DIN:DIN2527,DIN2566,DIN2573,DIN2576,DIN2641,DIN2642,DIN2655,DIN2656,DIN2627,DIN2628,DIN2629,DIN 2631, ANSI:ANSI B16.5,ANSI B16.47,MSS SP44,ANSI B16.36,ANSI B16.48 BS4504, BS1560, BS10 UNI:2276 2277 2278 6084 6089 6090 2544 2282 6091-6093 JIS |
Material |
Stainless steel: ASTM A182 F1, F5, F9, F22, F91, 310/F304/304L/F316/F316L, F321, F347. |
Surface
treatment |
Galvanized(hot,cold),varnish Method rust oil Plastic spraying |
Application Fields |
Chemical Industry /Petroleum Industry /Power Industry/Metallurgical Industry Building Industry /Ship-building Industry |
|
|
Wenzhou Long'an Flange Co., Ltd., established in 2013, is strategically nestled at No. 620 Mingzhu Road, Longwan District, Shenzhou City, Zhejiang Province, China. By capitalizing on Wenzhou's unparalleled local advantages and the efficient raw material supplies from Qingshan Holdings Group, coupled with our robust forging processes and machining capabilities, we have meticulously developed a comprehensive production system for Long'an flange.
Our state-of-the-art facility boasts over a hundred CNC lathes, capable of producing high-precision workpieces with diameters under 2000mm. Additionally, we possess 10 machining lathes for pieces exceeding 2000mm, ensuring precision in heavy workpieces and large tubesheets. Our advanced infrastructure is further enhanced with 16 high-precision machining centers, consisting of 6 three-axis, 3 four-axis, 3 five-axis machining centers, 3 large gantry machining centers, and a 2-meter horizontal machining center. This sophisticated setup guarantees that every customer's product is crafted within our premises, allowing us to meticulously control the quality of each stage and meet the exacting high-precision standards demanded by our clients. This powerful equipment array thoroughly addresses all customer product research and development needs, offering the most convenient and efficient services for their innovative projects.
Utilizing a complete online ERP system, we seamlessly integrate our workshop network—from raw material entry to finished product exit—achieving a paperless production environment that ensures data accuracy for every product. This robust system facilitates stringent quality control at every production phase, employing digital processes to manage each stage of production and guaranteeing that product quality meets rigorous standards at every link.
Equipped with independent laboratories, our company is furnished with cutting-edge testing equipment, including fully automatic direct reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines.




