Long an Stainless Steel Flange Welding Neck Fitting for Pipe Connections

• 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 located at No. 620 Mingzhu Road in the thriving Longwan District of Shenzhou City, Zhejiang Province, China. By capitalizing on Wenzhou's outstanding local advantages and leveraging the seamless and efficient raw material supply from Qingshan Holdings Group, combined with our robust forging processes and machining capabilities, we have constructed a comprehensive production system for Long'an flange. This synergy empowers us to deliver exceptional quality and expertise in flange manufacturing.
Currently, the company boasts an impressive fleet of over a hundred CNC lathes capable of processing high-precision workpieces with diameters less than 2000mm. Additionally, we have 10 machining lathes that can handle diameters exceeding 2000mm, ideal for heavy workpieces and large tube sheets. Our state-of-the-art facilities include 16 high-precision machining centers: 6 three-axis, 3 four-axis, 3 five-axis centers, along with 3 large gantry machining centers and a 2-meter horizontal machining center. These robust configurations allow us to ensure every customer's product is meticulously processed within our premises, upholding quality control at every stage and meeting our customers' high-precision specifications. Our powerful equipment lineup supports all customer research and development needs, delivering the most convenient and efficient services for their innovative projects.
Our company implements a comprehensive online ERP system that seamlessly integrates the workshop network, from raw material intake to finished product dispatch, achieving a paperless production environment and ensuring accuracy across product data. This system also facilitates quality control at each production phase, employing digital processes to manage every step and ensuring that product quality consistently meets required standards across the board.
We pride ourselves on our independent laboratories, equipped with a diverse 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 advanced testing capability ensures precision and reliability in every product we deliver.