Flanges are essential components in piping systems used to connect pipes, valves, pumps, and other equipment to form a secure and leak-proof assembly. They allow for easy assembly and disassembly of piping systems for maintenance, repair, or inspection.
Types of flanges:
Weld Neck (WN) Applications: High-pressure and high-temperature applications.
Slip-On (SO) Applications: Low-pressure applications where stress is minimal.
Socket Weld (SW) Applications: High-pressure applications with smaller pipe sizes.
Threaded (TH) Applications: Low-pressure and non-critical applications.
Lap Joint (LJ) Applications: Systems requiring frequent dismantling for inspection.
Blind (BL) Applications: Testing, maintenance, or pressure testing of pipelines.
Ring Type Joint Flanges (RTJ) Applications: High-pressure and high-temperature applications, particularly in the oil and gas industry.
Orifice (OF) Applications: Flow metering systems in pipelines.
G.Fiori A Goval Brand

ANSI/ASME B16.5 FLNAGES
Applications: General piping systems, oil and gas, chemical processing, power generation
SIZES INCH / DN | 1/2″ (DN15 ) to 48″(DN1200) |
TYPES | Weld Neck Raised Face(WNRF) / Blind Raised Face (BLRF) |
Slip On Raised Face (SORF) / Socket Weld Raised Face (SWRF) | |
Lap Joint (LJRF) / Ring Type (RTJF) / Thread Flange | |
Spectacle Blinds, Spades and Ring-Spacers | |
CONNECTION TYPE | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF). |
Lap-Joint Face (LJF) | |
PRESSURE RATING | CLASS (LBS) 150 / 300 / 600 / 900 / 1500 / 2500 |
PN (Bar): 6 / 10 / 16 /25 / 40 / 64 | |
MATERIAL |
|
CARBON STEEL | ASTM A105 / ASTM A350 LF2 / ASTM A694 F42, F52, F60, F65, F70 |
STAINLESS STEEL | ASTM A182 F304/304L, F316/316L |
ALLOY STEEL | ASTM A182 F1, F11, F12 |
DUPLEX STEEL | ASTM A182 F51 |
STANDARDS | ASME B16.5, ANSI/ASME B16.5, B16.47 Series A & B |
B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges. | |
TEST CERTIFICATE | EN 10204/3.1 |
DOWNLOAD DATASHEET: |
API 6A TYPE 6B 34.5 MPA (5000 PSI)
Application: Oil and gas, wellhead equipment, high-pressure systems
Flange Type : Weld Neck RTJ / Blind RTJ
Material : Carbon Steel / Stainless steel
Dimension: 2 1/16″ , 2 9/16″ , 3 1/8″ , 4 1/16″ , 5 1/8″ , 7 1/16″ , 9″ , 11″
DOWNLOAD DATA SHEET:
EN 1092-1
Applications: General piping systems, water treatment, industrial applications
SIZES: DN15 ~ DN1200
PRESSURE: PN6 / PN10 / PN16 / PN25 / PN40
TYPES: FLAT TYPE A&B/ BLIND / WELD NECK / LAP JOINT / THREADED
MATERIAL: CARBON STEEL / STAINLESS STEEL