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 |
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Wenzhou Long'an Flange Co., Ltd., established in 2013 and nestled at No. 620 Mingzhu Road, Longwan District, Shenzhou City, Zhejiang Province, China, is a beacon of industrial excellence. By harnessing the unparalleled local advantages of Wenzhou and relying on the seamless and efficient supply chain of raw materials from the esteemed Qingshan Holdings Group, the company has integrated a robust forging process with superior machining capabilities. This synergy has culminated in a comprehensive production system for Long'an flanges, setting a high standard in the industry.
Our company is proud to host a fleet of over a hundred state-of-the-art CNC lathes, adept at processing high-precision workpieces up to a diameter of 2000mm. Beyond this, we house 10 advanced lathes specifically designed for handling robust workpieces and sizable tubesheets exceeding 2000mm. In addition, our facility is equipped with 16 high-precision machining centers, which include 6 three-axis, 3 four-axis, 3 five-axis, 3 large gantry centers, and a unique 2-meter horizontal machining center. These formidable resources ensure that every product crafted within our facility meets the exacting high-precision standards of our customers, streamlining all processes under one roof. Our cutting-edge equipment configuration is meticulously tailored to meet all customer product research and development needs, delivering unparalleled convenience and efficiency to support our clients' innovative product journeys.
Wenzhou Long'an Flange Co., Ltd. boasts a sophisticated, comprehensive online ERP system seamlessly integrating every facet of our workshop network—from the entry of raw materials to the final exit of finished products. This system facilitates a paperless production environment, ensuring impeccable data accuracy for each product. Moreover, it enables stringent quality control at every production stage, utilizing digital processes to oversee each link, thereby ensuring that the quality of products at every stage meets the rigorous standards required.
Our company is further strengthened by our independent laboratories, fully equipped with a range of advanced testing equipment. This includes fully automatic direct reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines, all dedicated to ensuring the highest quality and reliability of our products.




