Cov kev xav tau rau cov dej xau ntawm cov tshuab foob ntawm lub tshuab hluav taws xob submersible yog ntau dua li ntawm cov twj tso dej dav dav.
Raws li kev siv cov tshuab foob feem ntau ntawm cov twj submersible, cov hom pib yog:
(1) Balanced mechanical seal thiab unbalance mechanical seal;
(2) Internal (set) mechanical seal thiab sab nraud (set) mechanical seal;
(3) Ib-kawg txhua yam foob thiab ob-kawg mechanical foob;
(4) Ib lub caij nplooj ntoos hlav tshuab foob thiab lub caij nplooj ntoos hlav tshuab foob;
(5) Rotary mechanical seal thiab static mechanical seal;
(6) Internal flow mechanical seal thiab sab nraud flow mechanical seal