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, stands proudly at No. 620 Mingzhu Road, Longwan District, Shenzhou City, Zhejiang Province, China. Capitalizing on Wenzhou's unparalleled local advantages and benefiting from the seamless and efficient raw material supply from Qingshan Holdings Group, we have meticulously crafted a robust production system for Longan flange. Our strong forging processes and precision machining capabilities have positioned us as leaders in the industry.
Our cutting-edge facility boasts an impressive fleet of over a hundred CNC lathes, capable of crafting high-precision workpieces with diameters of up to 2000mm. Complementing this, we operate 10 specialized lathes designed for handling heavy-duty workpieces and large tubesheets. We are proud to offer 16 advanced machining centers, including 6 three-axis, 3 four-axis, 3 five-axis, 3 large gantry machining centers, and a state-of-the-art 2-meter horizontal machining center. This powerful array of equipment ensures every product meets the exacting high-precision standards of our esteemed customers, all within our factory. Our comprehensive configuration supports all product research and development needs, delivering unparalleled convenience and efficiency to foster your innovative projects.
Our company is equipped with a sophisticated online ERP system that seamlessly integrates with the workshop network, covering everything from raw material entry to finished product dispatch. This strategic implementation achieves a paperless production environment, guaranteeing data accuracy for each product. Additionally, it empowers us with meticulous quality control at each production stage, utilizing digital processes to maintain impeccable product quality in every aspect, ensuring it meets all stringent requirements.
Our commitment to excellence is further reinforced by our independent laboratories, fully equipped with an array 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 enabling precise and reliable testing to uphold the highest standards of quality and safety.






