Metal to metal seal design - inconel material

Question

Metal to metal seal design - inconel material

Hanson Gill_1983 (Mechanical)

(OP)

16 Aug 17 19:12

Hi all,

I'm looking to design a metal to metal seal as shown in the picture attached.
Force is applied on part 1 against part 2 with a metal seal in between.
The seal should work in a pressure of 5k psi and force to be applied is approx 8000 pounds.any tips/guidance would be of great help. Thanks

http://files.engineering.com/getfile.aspx?folder=474010d4-fd17-4524-a734-a7

monkeydog (Aerospace) · Answer 1 · 2017-08-17 12:47:03

What are you sealing?
Helium, mud, lava?
How much leakage can you have? 1 cc of lava per day?

Hanson Gill_1983 (Mechanical) · Answer 2 · 2017-08-18 04:09:27

the seals should work to seal Hydrocarbons (oil extraction). There shouldn't be any leakage.

rtmorgan (Mechanical) · Answer 3 · 2017-08-18 16:49:12

This is called by many names, the original Grayloc circa 1954. That design has been used from hard vacuum thru 60Ksi, and temps as high as 1800°F. Per code and actual installation measurements, seating stresses are nominally less than 5% of available joint bolt load capacity.
Why re-invent the wheel again?

Hanson Gill_1983 (Mechanical) · Answer 4 · 2017-08-20 18:59:23

Thats right Morgan... my intention was to use the grayloc metal seals and i know well that these are pre-engineered components.But, the problem is i could'nt find a relevant document on the housing specification profile details for these seals (in specific Grayloc seal size 56).If you know where i can get these details it would be of great help.

rtmorgan (Mechanical) · Answer 5 · 2017-08-21 17:51:09

Hanson,
Seat details are normally not distributed unless under license from one of the manufacturers. I have to be very careful here as I still am employed by one of these. Usually, if a manufacturer wants to use a hub/seal design on an integral product of their manufacture, a license can be arranged. I don't know of a source outside of this where seat machining details are readily/reliably available.

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Metal to metal seal design - inconel material