Long an Stainless Steel Flange Welding Neck Fitting with Custom Options

• 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., proudly established in 2013, finds its home at No. 620 Mingzhu Road, Longwan District, Shenzhou City, Zhejiang Province, China. By strategically exploiting Wenzhou's outstanding regional advantages and benefiting from the convenient and efficient raw material supply through Qingshan Holdings Group, combined with our robust forging process and exceptional machining capabilities, we have expertly crafted a comprehensive production system dedicated to Longan flange excellence.
Our state-of-the-art facility boasts over one hundred CNC lathes, enabling us to meticulously process high-precision workpieces with diameters under 2000mm. Additionally, we possess 10 machining lathes with diameters exceeding 2000mm for handling heavy workpieces and large tubesheets. To ensure unparalleled precision and quality, our factory is equipped with 16 high-precision machining centers, including 6 three-axis machining centers, 3 four-axis machining centers, 3 five-axis machining centers, 3 large gantry machining centers, and a 2-meter horizontal machining center. This impressive array of powerful equipment allows us to meet all product research and development needs seamlessly, ensuring that every product undergoes meticulous processing within our factory, guaranteeing that each meets our customers' high-precision standards, thus delivering the most convenient and efficient services for their innovative product research and development.
Our company boasts a robust online ERP system that comprehensively covers the workshop network, from raw material entry to finished product exit, facilitating a paperless production environment and ensuring the precision of data for each product. This advanced system enables stringent quality control at every production stage, with digital processes overseeing each step, thereby guaranteeing that the product quality consistently meets the stringent standards required at every juncture.
We take pride in our independent laboratories, equipped with a vast array of testing equipment, including fully automatic direct reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines, ensuring that each product is meticulously evaluated for the highest standards of quality and reliability.