FL series Flanges are standard high quality products. Suitable for onshore or offshore oil & gas projects.


The FL series flanges were developed to provide the market with more reliable technology and more hoisting performance. Full size for choose, reliable quality and reasonable price. Included but not limited by the advantages mentioned, FL series flanges might be your best choice.


General Features

•  Hook manufactured according to API std 602
•  Suitable for onshore or offshore operations
•  High strength steel, provide reliable quality


Main aramaters

Size: 26” – 72” (660 mm – 1830 mm)



Type Blind Flanges
Lap Joint Flanges
Orifice Flanges
Spacer Ring / Spade Flanges
Slip-on Flanges
Socket Weld Flanges
Threaded Flanges
Weld Neck Flanges
Material Carbon Steel
Stainless Steel
Alloy Steel
Duplex & Super Duplext Steel
Face Type Flate Face (FF)
Raised Face (RF)
Ring Type Joint (RTJ)
Norminal Diameter Range 1/2” – 96”, DN15-DN2000
Pressure Range 150# - 2500# (PN6 – PN40)
Standards ANSI/ASME Standard: ANSI B16.5, ANSI B16.47 Series A & B, MSS-SP-44, API 605, API6A in class 150 to 2500;
AWWA C207 flanges in Class B, Class D, Class E, Class F, Ring, Blind & Hub;
European DIN, UNI, EN 1092-1, BS 4504, ISO, NS, NFE29203 flanges in Pressure PN6 to PN100;
Japanese JIS B2220 & Korean KS B1503 flanges in pressure 5K to 40K;
Russian GOST 12820-80, GOST 12821-80, GOST 12815-80 in pressure PN0.6MPa to PN10MPa;
South African SABS 1123 / SANS 1123 in Class 600kPa to 4000kPa.

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