This is also known as the threaded flange. These flanges are used in pipe systems where welding is not possible. Pipe systems should have thick walls only as these are not suitable for thin walls. As the name suggests, a screwed flange connects the pipe to a flange with a help of a screw thread.
Threaded flanges are threaded in the bore which matches an external thread on the pipe. They are not suitable for high-temperature applications because the thread geometry would distort, which often leads to leakage. Threaded flanges are not recommended for service above 250°C and below -45 C. These flanges are used for small-sized piping systems i.e. ≤ 4 inches. It is majorly restricted to non-toxic systems, low-pressure systems, and low-temperature systems.
Industries:
- Chemical
- Paper and pulp
- Fabrication
- Food processing
- Oil and Gas Pipeline
- Water Supply Systems
- Power Plant
Dimensions : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA
Size : 1/2″ (15 NB) to 48″ (1200NB)
Class: 150 LBS 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629,
DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
BS : BS4504 , BS4504, BS1560, BS10
Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Material & Grades of Threaded / Screwed Flanges :
Stainless Steel Threaded / Screwed Flanges :
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Duplex & Super Duplex Steel Threaded / Screwed Flanges :
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Threaded / Screwed Flanges :
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Low-Temperature Threaded / Screwed Flanges: ASTM A30, LF2, LF3
Alloy Steel Threaded / Screwed Flanges :
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Copper Alloy Steel Threaded / Screwed Flanges: ASTM SB61, SB62, SB151, SB152 US No. C 70600 (Cu-Ni
90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Nickel Alloy Threaded / Screwed Flanges :
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS
No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel
600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No.
N10276), Alloy 20 (UNS No. N08020)
Advantages:
- Economical and time-saving equipment
- It can be fitted to pipes of various sizes without welding
- quicker and easier to assemble and disassemble
