Reliable Long an Stainless Steel Pipe Fitting Socket Neck Flanges

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Socket Welding Flange
• Model NO.: Socket welding
• 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 leveraging Wenzhou's superior local advantages and the convenient and efficient raw material supply of Qingshan Holdings Group, coupled with our strong forging process and machining capabilities, we have developed a robust production system for Long'an Flange. This ensures we deliver outstanding products with unparalleled precision and quality to our valued customers.
The company currently boasts over a hundred CNC lathes, capable of processing high-precision workpieces with diameters under 2000mm. Additionally, we have 10 machining lathes with diameters exceeding 2000mm, ideal for handling heavy workpieces and large tube sheets. Our facility is further equipped with 16 high-precision machining centers, including 6 three-axis, 3 four-axis, 3 five-axis centers, 3 large gantry centers, and 1 two-meter horizontal center. This ensures every customer product is processed within the factory, allowing us to meticulously control quality and ensure each product meets the exacting high-precision standards required by our clients. Our powerful equipment configuration comprehensively meets all product research and development needs, offering the most convenient and efficient services for innovative product development.
Boasting a comprehensive online ERP system, our company fully integrates the workshop network—from raw material entry to finished product exit. Achieving paperless production ensures the accuracy of data for each product. This system allows us to maintain stringent quality control at every stage of production, utilizing digital processes to oversee every link, ensuring that product quality consistently meets necessary standards.
Our company is further enhanced by independent laboratories equipped with a wide range of testing equipment, including fully automatic direct reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines. This ensures the highest standards of quality and reliability across all our products.