JIS welded neck flanges joints to pipe by butt welding. The structure of flanges allows to transmit stress from flanges to pipe and reducing concentration force at the seat of flanges. The inside diameter of flanges is equivalent to pipe. Welded neck flanges are suitable for high pressure.
Nominal diameter: DN15-600mm, DN25-600mm, DN25-2000mm
Nominal pressure: JIS 10-40K
Standard: JIS B2210, B2212
Materials:
Carbon steel: ASTM A105
Alloy steel: ASTM A182 F, 1F, 2F, 5F, 9F
Stainless steel: ASTM A182 304,304H, 304L, 304N
Flanging face: raised face (RF), flat face (FF), ring joint face (RTJ)
Dimensions
Flanging face | JIS | |||||
10K | 16K | 20K | 30K | 40K | 60K | |
Raised face (RF) | DN15-600 | DN25-2000 | ||||
FLAT face (FF) | DN15-600 | - | ||||
Ring joint face (RJ) | DN25-600 | DN15-600 | DN25-2000 | |||
ANSI B16.5 Weld Neck Flanges, AS, CS, SS, 150-2500LB
ASTM A182 Stainless Steel Welding Neck Flanges, FF, 1500LB
Carbon Steel Welded Neck Flanges, A105, RF, DN15-2500
JIS Welded Neck Flanges, 10-40K, DN15-600mm
JIS Carbon Steel Socket Weld Flange, MFM, 10-40K
Bellows Sealing Single-seat Control Valve, Scarf Welded
Carbon Steel LJ Flange, 150LB, FF, JIS B2212
Flanged Cage Single-seat Control Valve, ANSI B16.5
JIS Carbon Steel Blind Flange, MFM, 1/2-78 Inch, 10-40K
JIS Alloy Steel Slip-on Flange, RF, 10-40K, Black
Self-operated Differential Pressure Control Valve, JIS
