Long an High-Performance Stainless Steel Flange Welding Neck Pipe Fitting

• 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 trailblazer in the flange industry, was established in 2013. Proudly situated at No. 620 Mingzhu Road, Longwan District, Wenzhou City, Zhejiang Province, China, we harness the superior local advantages of Wenzhou. By strategically partnering with the eminent Qingshan Holdings Group to ensure a convenient and efficient supply of raw materials, we have crafted a robust production system for Long'an flange. Our strong forging processes and unparalleled machining capabilities create an ecosystem of excellence in flange production.
Our company boasts over a hundred state-of-the-art CNC lathes, adept at processing high-precision workpieces with diameters under 2000mm. Complementing this, we have 10 powerful machining lathes capable of handling diameters exceeding 2000mm, tailored for heavy workpieces and large tubesheets. To further enhance precision, we have invested in 16 high-precision machining centers, including 6 three-axis, 3 four-axis, 3 five-axis, 3 large gantry centers, and 1 expansive 2-meter horizontal center. This impressive array of equipment ensures every customer's product is precisely processed within our facility, maintaining stringent quality control across every production link, and meeting the high-precision demands of our clients. This powerful equipment configuration thoroughly fulfills all R&D needs, offering unparalleled convenience and efficiency for customer innovation.
We deploy a sophisticated online ERP system, seamlessly integrating the workshop network from raw material entry to finished product exit. This digital system enables paperless production, guaranteeing data accuracy for each product. Through meticulous quality control at every production stage, we leverage digital processes to ensure that product quality consistently meets stringent standards, safeguarding excellence at every step.
Our company prides itself on independent laboratories equipped with an array of testing apparatus, ensuring rigorous quality assurance. This includes fully automated direct-reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines. Our comprehensive testing facilities are designed to uphold the highest standards of product excellence and reliability.