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 |
Material |
Carbon steel: Q235A, Q235B,Q345BC22.8, ASTM A105, SS400 |
Alloy steel: ASTM A694,F42,F46, F52,F56, F60, F65, A350 LF2 , |
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 |
PACKING |
plywood cases, pallets, nylon bags or according to the customers' requirements |
FLAT FACE: A flat surface without elevation is used mainly for low-pressure and non-critical applications.
RAISED FACE: Features a raised area around the bore, common in many high-pressure applications and allows for a variety of gasket types.
RING-TYPE JOINT (RTJ): Features a grooved face that holds a metal ring gasket, used in high-pressure and high-temperature applications.
LAP JOINT: Often used with a matching stub end, this face allows for easy alignment and is used primarily in systems that require frequent maintenance.
TONGUE AND GROOVE: One flange has a raised ring (tongue), and the other has a depressed ring (groove); they fit into each other to form a tight seal.
MALE AND FEMALE: Similar to tongue and groove but more exaggerated; the male flange has an additional lip, and the female flange has a corresponding recess.
Detailed Photos
Company Profile

TOBO INDUSTRY (SHANGHAI) CO., LTD Located in Baolong Center, Jiading District, Shanghai, the company has 5 factories to provide customers with the products they need, and the group factory covers an area of 800 acres As a Top 10 in the field of pipe flange manufacturing, the company has been committed to providing high-quality pipe flanges to customers around the world for many years. Since its establishment in 1984, the company has stood out in the fierce market competition by virtue of its profound understanding of the industry and continuous technological innovation.
The company has 15 sets of advanced production equipments and 6 product production lines. From raw material inspection to product molding, every step of the process strictly follows international standards and industry norms. Our pipe fitting flange products cover a wide range of types and specifications, which can meet the diversified needs of different customers in the fields of petroleum, chemical industry, electric power, construction and so on. The quality of our products is stable and reliable, with excellent performance in key performance indicators such as corrosion resistance and compression resistance, which are trusted by our customers.
In terms of product research and development, the company has its own team of engineers, who have been engaged in research and development positions for 5-8 years, and are able to solve the problems and difficulties we may encounter in product production and sample processing in real time.
In addition to product quality and technological innovation, the company also focuses on customer service. We have established a perfect pre-sale, sale and after-sale service system to provide customers with all-round support. Whether it is product consultation, order processing or after-sales maintenance, we can make our customers feel our professionalism and attentiveness.
Looking to the future, TOBO INDUSTRY (SHANGHAI) CO., LTD. will continue to uphold the business philosophy of "quality first, customer first, innovation and development", and constantly improve its own strength to provide customers around the world with better quality pipe fitting flange products and services, and contribute more to the development of the industry.
The company produces flanges of various materials, such as carbon steel,304,316L,321 ,2205,2507,310S,904L,317H, 276,625, etc. The leading products are flat welded flanges with plates, flat welded flanges with necks, butt welded flanges with necks, blind flanges, loose flanges and socket welding. Widely used in various industrial fields, including petroleum, chemical industry, machinery, electric power, food processing, pharmaceutical and other fields.the company achieves strict control from forging to molding, providing stable and reliable high-quality products.
Our Advantages


FAQ
Q1. What is your kinds of packing?
A: Pallet; wood case, carton box;.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% balance against bill of ladiong copy; or L/C at sight.
Q3. How about your delivery time?
A: Generally, it will take 7 to 15 days for 1*20ft, 15-20 days for 1*40ft after receiving your advance payment.
Q4. Can you produce according to our samples?
A: Yes, you can send samples to us and we can check your quality and produce as per your samples or
technical drawings.
Q5. Can I get samples?
A: Yes, small samples are usually free with express service expense at customer's cost.
Q6: Is factory visit or inspection acceptable?
A: Yes,factory visit is always welcomed and inspection like third-party inspection okay.
Q7: Do you attend any expo?
A: Yes, usually we attend sign expos in Shanghai twice in a year (one in March and the other in September).
And we attended Sign Asia expo in IMPACT, THAILAND. In future we will add China Import and Export Fair
(Canton Fair) into our exhibition list, also some international expos which will be hold in different countries.
Q8: How about the after-sale service?
A: If there has any quality problems when you receive our products, show us photos and after discussing we
will afford the lost from next order.