I created all required catalogs for piping components that have ring type joint facing. I took the overall length for valves from face to face (Ring groove is included).
My question is:
What thickness of the ring gasket shall i use for these components? I think 0 mm is not the right choice.
Note: for example I selected R47 gasket for my 6'' valves #2500 RTJ. In this case the gasket will disappear in the groove after bolting.
shall i use the distance between flanges (4 mm for my example) as a gasket thickness?
Hello Deva
For a 6'' flange (ASME B16.5) #2500 RTJ, we have a groove thickness of 12.7 mm and the overall length of the flange is 285.7 mm
What i understand from your reply is:
in the flange catalogue, the overall length is 273 mm
in the gasket catalogue, the thickness is 25.4 mm
Am i right Deva?
thank you for your reply.
[QUOTE=Sargon;112612]Hello Deva
For a 6'' flange (ASME B16.5) #2500 RTJ, we have a groove thickness of 12.7 mm and the overall length of the flange is 285.7 mm
What i understand from your reply is:
in the flange catalogue, the overall length is 273 mm
in the gasket catalogue, the thickness is 25.4 mm
Am i right Deva?
thank you for your reply.
Groove Width is provided for Flanges?
From Gasket Overall thickness subtract these groove widths from two flanges.
e.g. gasket thickness 25.4
groove width for flange 1 is 7, groove width is for flange 2 is 7
Now your gasket thickness is 25.4 - 7 - 7 = 25.4 - 14 = 11.4
I created all required catalogs for piping components that have ring type joint facing. I took the overall length for valves from face to face (Ring groove is included).
My question is:
What thickness of the ring gasket shall i use for these components? I think 0 mm is not the right choice.
Note: for example I selected R47 gasket for my 6'' valves #2500 RTJ. In this case the gasket will disappear in the groove after bolting.
shall i use the distance between flanges (4 mm for my example) as a gasket thickness?
Thank in advance.
To me it should be ZERO.
Anyway, it depends on where you created P-Point 1 on the flange...
Some standards tell you that some space is left after bolting. For my example, 4mm is obtained from "PIPEDATA PRO" as a space between two mating flanges. Regarding my P-Points, I used the same philosophy in AVEVA catalogues (AAFWRJ??).
Some standards tell you that some space is left after bolting. For my example, 4mm is obtained from "PIPEDATA PRO" as a space between two mating flanges.
So in this case the P1-P2 distance of the gasket should be 4mm
