pedrof
Mechanical
- Oct 19, 2004
- 56
I have a standard fitting from a supplier which we need to fit to an aluminium jacket, once it is in it is staying there.
Their fitting is stainless steel and has a viton o-ring in a groove to face seal against whatever body it is threaded into. The o-ring stretches over an M10 thread into a groove on the fitting body. There is a reasonable flat surface area that a copper washer could seal on.
We need to rate the seal we design to 250°C so I want to use a copper washer as a gasket to overcome temperature rating.
It is a static low pressure application, the fluid it is sealing is silicon oil. I think it should be OK but does anyone think different thermal expansion coefficients of the stainless and aluminium will be a problem?
Their fitting is stainless steel and has a viton o-ring in a groove to face seal against whatever body it is threaded into. The o-ring stretches over an M10 thread into a groove on the fitting body. There is a reasonable flat surface area that a copper washer could seal on.
We need to rate the seal we design to 250°C so I want to use a copper washer as a gasket to overcome temperature rating.
It is a static low pressure application, the fluid it is sealing is silicon oil. I think it should be OK but does anyone think different thermal expansion coefficients of the stainless and aluminium will be a problem?