|NOZZLE AND DELAY BULKHEAD CLOSURES|
|54mm nozzle closure unit|
|54mm delay closure unit|
|54mm bulkhead closure unit|
Nozzle closure has positive seal in two places. Bulkhead |
closure has positive seal in one place and standard friction fit
delay element. Closure accepts small quantities of ejection
powder in the well and 3/8g is recommended for LMR and
1/2g is recommended for typical HPR rockets.
In particular the nozzle o-ring can be damaged
by installation of nozzles so bevel the nozzle edge slightly
with sandpaper to increase seal life.
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