Long an Durable Stainless Steel Pipe Fitting Blind Flange Options

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Blind Flange
• Model NO.: Blind
• Material: Stainless Steel
• Structure: Flanges
• Connection: Blind Flange
• Sealing Surface: FF
• 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., established in 2013, is strategically located at No. 620 Mingzhu Road, Longwan District, Wenzhou City, Zhejiang Province, China. Benefiting from Wenzhou's exceptional geographical advantages and leveraging the efficient raw material supply from Qingshan Holdings Group, we have crafted a robust production system for Long'an flange. Our strong forging processes and advanced machining capabilities ensure that our production ecosystem is complete and efficient.
Our company boasts an impressive array of over a hundred CNC lathes, capable of machining high-precision workpieces up to a diameter of 2000mm. In addition, we operate 10 machining lathes designed for heavy workpieces and large tube sheets exceeding 2000mm. To further enhance our precision, we have equipped our facility with 16 state-of-the-art machining centers, including 6 three-axis centers, 3 four-axis centers, 3 five-axis centers, 3 large gantry centers, and a 2-meter horizontal center. These advanced configurations ensure that all customer products are meticulously processed within our factory walls, enabling us to maintain quality control at every stage and meet the high-precision requirements of our valued clients. Our powerful equipment lineup is designed to fully support all research and development needs, offering unparalleled efficiency and convenience for innovative product development.
Equipped with a comprehensive online ERP system, our company ensures a seamless integration across the workshop network—from raw material entry to finished product dispatch. This paperless production approach guarantees data accuracy for each product. Through this system, we maintain rigorous quality control at every production step, using digital processes to uphold product quality standards at each phase. This commitment ensures that our products consistently meet the stringent quality demands of every link in the production chain.
Our company takes pride in its independent laboratories, furnished with a variety of sophisticated testing equipment. This includes fully automatic direct-reading spectrometers, handheld spectrometers, spectral alloy analyzers, hydraulic universal material testing machines, and pendulum impact testing machines. Our extensive testing capabilities ensure that every product meets the highest standards of quality and performance.