Long an Innovative Stainless Steel Flange Welding Neck Pipe Fitting Design

• 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., founded in 2013, is strategically situated at No. 620 Mingzhu Road, Longwan District, Wenzhou City, Zhejiang Province, China. Harnessing Wenzhou's exceptional local advantages and the reliable supply of raw materials from Qingshan Holdings Group, we combine these with our robust forging process and advanced machining capabilities. This synergy has allowed us to establish a comprehensive production system for Longan flange, ensuring superior quality and efficiency.
Our company boasts an impressive array of over a hundred CNC lathes capable of processing high-precision workpieces with diameters under 2000mm. Additionally, we possess 10 machining lathes designed for heavy workpieces and large tubesheets exceeding 2000mm in diameter. We have further enhanced our facilities with 16 high-precision machining centers, including 6 three-axis, 3 four-axis, 3 five-axis, 3 large gantry, and a 2-meter horizontal machining center. This extensive lineup guarantees that every customer product is meticulously processed within our factory, allowing stringent quality control at each stage. Our advanced equipment configuration fully supports the research and development needs of our clients, offering them seamless and effective service for their innovative product designs.
Our cutting-edge online ERP system thoroughly covers the workshop's network, from raw material entry to finished product exit, enabling a paperless production environment and precise data accuracy for each product. This system ensures meticulous quality control at every production stage, utilizing digital processes to manage each link of production and guaranteeing that the quality of our products consistently meets the highest standards.
In addition, our company houses independent laboratories furnished with an array of testing equipment. These include fully automatic direct reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines, all dedicated to ensuring the utmost quality and reliability of our products.