Long an Stainless Steel Flange Welding Neck Fitting with Custom Manufacturing

• 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., a beacon of innovation and craftsmanship, was founded in 2013. Nestled at No. 620 Mingzhu Road, Longwan District, Shenzhou City, Zhejiang Province, China, we harness the superior local advantages of Wenzhou. By leveraging the robust and efficient raw material supply from Qingshan Holdings Group and our potent forging processes and machining capabilities, we have meticulously crafted a comprehensive production system for the unmatched Longan flange.
Our company boasts a formidable arsenal of over a hundred CNC lathes, skillfully engineered to process high-precision workpieces with diameters under 2000mm. In addition, we proudly operate 10 machining lathes designed to handle heavy workpieces and large tubesheets exceeding 2000mm. Our impressive suite of high-precision machining centers comprises 16 units, including 6 three-axis, 3 four-axis, 3 five-axis, 3 large gantry, and 1 landmark 2-meter horizontal machining center. This ensures that every product entrusted to us undergoes meticulous processing within our facility, guaranteeing the quality of each link and meeting the high precision demands of our esteemed customers. Our powerful equipment configuration comprehensively addresses all product research and development requirements, offering the most seamless and efficient services for innovative product exploration.
Equipped with a sophisticated online ERP system that seamlessly integrates with our workshop network, we achieve a paperless production environment. This ensures the precision of data from raw material entry to finished product exit. Additionally, our system enables stringent quality control at each stage of production, leveraging digital processes to maintain exceptional product quality throughout every phase of development, meeting rigorous standards.
Our state-of-the-art independent laboratories are a testament to our commitment to quality and innovation. We are equipped with an array of testing equipment, including fully automatic direct reading spectrometers, handheld spectrometers, specialized alloy analyzers, and comprehensive hydraulic universal material testing machines. These advanced tools, alongside pendulum impact testing machines, ensure rigorous testing and validation of our products.