Long an Stainless Steel Flange Welding Neck Fitting with Enhanced Durability

• 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, strategically located at No. 620 Mingzhu Road, Longwan District, Wenzhou City, Zhejiang Province, China. Capitalizing on Wenzhou's exceptional local advantages, and leveraging the convenient and efficient raw material supply from Qingshan Holdings Group, our company has developed a robust production system for Long'an flange. This is further enhanced by our strong forging processes and advanced machining capabilities.
Our company is currently equipped with over a hundred CNC lathes, capable of processing high-precision workpieces with diameters under 2000mm. Additionally, we have 10 machining lathes for diameters exceeding 2000mm, designed for large tubesheets and heavy workpieces. To ensure every product meets the high-precision requirements of our customers, we have outfitted our facility with 16 advanced machining centers, including 6 three-axis, 3 four-axis, 3 five-axis machining centers, 3 large gantry machines, and a 2-meter horizontal machining center. This powerful equipment configuration supports comprehensive product research and development, delivering the most efficient and reliable services for your innovative needs.
Our company boasts a complete online ERP system that fully integrates with the workshop network, from raw material entry to finished product exit, achieving a paperless production environment. This system guarantees data accuracy for each product while implementing stringent quality control at every production stage. By utilizing digital processes, we ensure that the quality of each production link consistently meets rigorous standards.
We also maintain independent laboratories outfitted with a wide array of testing equipment, including fully automatic direct reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines, ensuring top-notch verification and compliance with industry standards.