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 situated at No. 620 Mingzhu Road, Longwan District, Shenzhou City, Zhejiang Province, China. Capitalizing on the exceptional local advantages of Wenzhou and the seamless raw material supply from Qingshan Holdings Group, complemented by our robust forging processes and machining expertise, we have meticulously developed a comprehensive production system for Long'an flange.
Our company proudly operates over a hundred CNC lathes capable of crafting high-precision workpieces with diameters below 2000mm. Additionally, we possess 10 specialized lathes handling diameters exceeding 2000mm, specifically for crafting heavy workpieces and large tubesheets. We are further reinforced by 16 high-precision machining centers, encompassing 6 three-axis centers, 3 four-axis centers, 3 five-axis centers, 3 large gantry centers, and a 2-meter horizontal machining center. This impressive array guarantees that every customer product is meticulously processed onsite, ensuring unparalleled quality control at every stage, and meeting the stringent high-precision demands of our esteemed clientele. Our formidable equipment capabilities fulfill all customer product research and development aspirations, delivering the most seamless and efficient services for groundbreaking innovations.
We have integrated a comprehensive online ERP system, enveloping the entire workshop network from the entry of raw materials to the exit of finished products, achieving a truly paperless production process and ensuring precise data accuracy for every product. This advanced system facilitates meticulous quality control at each stage of production, employing digitalized processes to uphold quality standards at every juncture, thus confirming that the product quality consistently meets rigorous requirements.
Our company boasts of independent laboratories equipped with an array of advanced testing instruments, including fully automatic direct reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines.




