I recommend Fike burst disks. There is a housing and the Burst disk is
ordered separately. It is a large housing and requires 1/2 NPT but the
housing would likely take 10K psi. Again,the disks are separate. If you
are confined regarding space, I have machined some of the meat off the
parts in the past and made them fit certain configurations. Not knowing
your configuration severely limits my recommendation. I have had excellent
and consistent results and they are stainless and LOX safe once properly
cleaned. Caveat: I have only used up to the 500 psi disks but they are
annecdotaly within 1% accuracy of stated burst.
There are also some incredibly accurate burst disks and Pressure relief
valves that I have used from Ratermann Manufacturing, an online store for
compressed gas plumbing accessories. Some are manufactured by Rego and the
like. I forget the other manufacturers.
Final recommendation, unless you are in the business of making and selling
burst disks, buy them. The question you must repeatedly ask yourself is;
are you in the (fill in the blank) business or are you in the making and
flying rocket business?
Regards: Joseph
On Mon, Mar 28, 2022 at 12:35 PM Henry Spencer <hspencer@xxxxxxxxxxxxx>
wrote:
On Mon, 28 Mar 2022, Uwe Klein wrote:
In scope of pcb manufacture exist services that do laser cut paste
masks... you can choose from a range of materials/thicknesses and you
can choose full cut or just variable depth surface "etching"
...Did anybody ever try that path for creating burst disks?
The problem with *any* do-it-yourself way of making burst disks is all the
testing needed to be confident that you'll get predictable results from
one-shot devices. Especially for a safety device, where it may be
necessary to convince other people, not just yourself.
Manufacturing such things is one of those places where doing it yourself
is possible in principle, but doing it *right* yourself is just way too
much work.
Henry
