Long an Durable Stainless Steel Flange Welding Neck Pipe Fitting Solutions

• 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

Founded in 2013, Wenzhou Long'an Flange Co., Ltd. is situated at No. 620 Mingzhu Road, in the bustling Longwan District of Shenzhou City, Zhejiang Province, China. Capitalizing on Wenzhou's unparalleled local advantages and the seamless and efficient supply of raw materials from the esteemed Qingshan Holdings Group, we have masterfully developed a robust production system dedicated to Long'an flanges. With our strong forging processes and exceptional machining capabilities, we have built a comprehensive production system that ensures excellence and precision in every product.
Our company proudly boasts an impressive inventory of over one hundred CNC lathes capable of processing high-precision workpieces with diameters under 2000mm. We also feature 10 specialized machining lathes designed for handling heavy workpieces and large tube sheets, thanks to their capacity for diameters exceeding 2000mm. To ensure that every customer product is expertly processed within our factory, we have equipped ourselves with 16 state-of-the-art high-precision machining centers. This includes 6 three-axis, 3 four-axis, 3 five-axis machining centers, 3 large gantry machining centers, and a 2-meter horizontal machining center. This formidable array of equipment not only guarantees quality control at every stage of production but also ensures each product meets the stringent high-precision standards demanded by our clients. With such a powerful configuration, we comprehensively address all product research and development needs, offering unparalleled convenience and efficient service to fuel customer innovation.
Our company boasts a comprehensive online ERP system that meticulously covers the entire workshop network—from raw material entry to finished product exit—ushering in an era of paperless production. This system guarantees the precision and accuracy of data for each product. Furthermore, through this sophisticated system, we achieve meticulous quality control at each step of production, harnessing digital processes to maintain excellence and consistency. Every link in our production chain is finely managed to ensure that the quality of each product meets or exceeds rigorous standards, reflecting our commitment to superior craftsmanship.
Equipped with independent laboratories, our company is furnished with an array of advanced testing equipment. These include fully automatic direct-reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines. This comprehensive suite of testing tools ensures the reliability and precision of our products, reinforcing our dedication to delivering excellence and innovation at every turn.