Long an Stainless Steel Flange Welding Neck Fitting for Enhanced Performance

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST
• Type: Welding Flange
• Model NO.: WN flanges
• Material: Stainless Steel
• Structure: Flanges
• Connection: Welding
• Sealing Surface: RF
• Manufacturing Way: Forging
• Brand Name: Long an
• Warranty: 1 Year
• Customized Support: OEM&ODM
• Package: Wooden Box or Pallet or Carton
• Technology: Forged
• Model Number: Flange
• Application: Petroleum, Natural Gas, Water Disposal
• Delivery Time: 10-20
• Pressure: Pn6/10/16/25/40/63
• Service: Within 24hours Reply
• Transport Package: Wooden Box
• Trademark: Long′an Flange
• Origin: Wenzhou, China
• HS Code: 7307210000
• Production Capacity: 1000000

Product Description

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. was established in 2013 and is strategically located at No. 620 Mingzhu Road, Longwan District, Wenzhou City, Zhejiang Province, China. By harnessing the outstanding local advantages of Wenzhou, and relying on the convenient and efficient raw material supply from Qingshan Holdings Group, combined with our robust forging process and machining capabilities, we have developed an exceptional production system for Long'an flange, ensuring premium quality and performance.
The company currently boasts over a hundred CNC lathes capable of processing high-precision workpieces with a diameter of less than 2000mm. Additionally, it possesses 10 machining lathes with a diameter of more than 2000mm, ideal for processing heavy workpieces and large tubesheets. Our facility is also equipped with 16 high-precision machining centers, including 6 three-axis, 3 four-axis, 3 five-axis machining centers, 3 large gantry machining centers, and a 2-meter horizontal machining center. This ensures every product is crafted within our factory premises, allowing us to meticulously control the quality of each stage and guarantee that every single product meets the high-precision requirements of our esteemed clients. The powerful equipment configuration thoroughly fulfills all product research and development needs, providing the most convenient and efficient services for innovative product creation.
Our company boasts a comprehensive online ERP system that seamlessly covers the entire workshop network, from raw material entry to finished product dispatch. This facilitates a paperless production environment and ensures the accuracy of data for every product. Through this sophisticated system, we achieve rigorous quality control at every stage of production, employing digital processes to meticulously manage each phase, ensuring that product quality at each step meets stringent requirements.
The company is further enhanced by independent laboratories equipped with a diverse range of 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 designed to rigorously test and ensure the superior quality and reliability of our products.