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., founded in 2013, is strategically located at No. 620 Mingzhu Road, Longwan District, Wenzhou City, Zhejiang Province, China. Benefiting from Wenzhou's remarkable regional advantages and supported by the convenient and efficient raw material supply from the esteemed Qingshan Holdings Group, we have cultivated a robust production system for Longan Flange. Our strong forging processes and advanced machining capabilities have allowed us to establish a seamless production framework that consistently delivers excellence.
Boasting a fleet of over a hundred high-tech CNC lathes, our company excels in processing high-precision workpieces with diameters less than 2000mm. Complementing these are 10 machining lathes for handling more substantial heavy workpieces and large tubesheets. We pride ourselves on our 16 high-precision machining centers, inclusive of 6 three-axis, 3 four-axis, 3 five-axis machining centers, alongside 3 large gantry machining centers, and a 2-meter horizontal machining center. This formidable equipment lineup ensures that all customer products are processed entirely within our facility, maintaining stringent quality control at every stage. Each product adheres to the high-precision demands of our esteemed clientele. Our comprehensive equipment capabilities thoroughly support all customer research and development needs, offering the most convenient and effective solutions for their innovative product exploration.
Our state-of-the-art online ERP system covers the entire workshop network, streamlining processes from raw material entry to finished product dispatch. This initiative not only facilitates a paperless production environment but also guarantees the precise tracking of data for every product. Through this digital system, we ensure rigorous quality control at every phase, employing digital processes to oversee each production link meticulously, thereby assuring that the product quality at each stage consistently meets stringent standards.
Our company further distinguishes itself with independent laboratories, equipped with a diverse array of testing apparatus. These include fully automatic direct-reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines. This comprehensive suite of testing equipment underscores our commitment to delivering unparalleled quality and reliability in every product.




