API Standrd Forged Flange, High Pressure Forging Flange in Top Steel, Plate and Blind Flanges/Slip on Flange

Slip on flanges, Plate flanges, Blind flanges, Spectacle flanges, Lap joint flanges, Welding neck flanges, Socket welding flanges and Treaded flanges, Square flanges.

1. Standard: JIS, BS, DIN. ANSI /ASTM, NF, API, GOST, UNI, GB and Non standard, 

2. Size: 1/2"-48", 1/2''--32'' etc.

3. Pressure ratings: class: 150 300 400 600 900 1500 and 2500, PN: 6 10 16 25 40 64 and 160,5K-40K and so on. 

4. Sealing surface: FF, RF, LJ, FM, R.T.J, R.J, MALE, FEMALE and so on. 

5. Use: petroleum, chemical, power, gas, water, line pipe, heat exchanger, shipbuilding, construction, etc.

6. Tolerance: not less than +_8% of normal wall thickness.

7. Production process: raw material → cutting → heating → forging → heat treatment→ machining → inspection

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