Patha zaka zoposa 50 chiyambireni valavu ya butterfly eccentric katatu, ndipo yapangidwa mosalekeza pazaka 50 zapitazi.Kugwiritsa ntchito ma valve a butterfly kwafalikira m'mafakitale angapo.Valavu yagulugufe yoyambirira imangogwiritsidwa ntchito polumikizira ndi kulumikizana kwa media media.Kapangidwe ka katatu ka eccentric kumawonjezera ntchito ya vavu ya gulugufe.Yakhala imodzi mwa mavavu omwe ali ndi ntchito yabwino kwambiri pansi pa zovuta kwambiri m'malo ovuta kwambiri pazida zamapaipi a mafakitale.

Monga momwe dzinalo likusonyezera, zida zitatu zodziyimira pawokha zimapangidwa ngati ma valve.Katatu eccentricity amatanthauza:

• Offset 1

Shaft imayikidwa kumbuyo kwa ndege ya malo osindikizira kuti apereke njira yopitilira mpando.

• Offset 2

Mtsinjewo umayikidwa kumbali imodzi ya chitoliro / valve centerline kuti athetse mkangano pakati pa chisindikizo ndi mpando

• Offset 3

Mpando ndi seal cone centerlines amatsatiridwa polemekeza chitoliro / vavu centerline.Kutsitsa kwachitatu kumeneku kumathetsa kusisita.Kokona iyi, pamodzi ndi ma eccentric shaft offsets, imalola diski kuti itseke pampando popanda kukangana.

Kapangidwe kampando kameneka kamalolanso kusindikiza yunifolomu, motero kutsekedwa kolimba mu kapangidwe ka mipando yachitsulo.Mapangidwe awa ndi otsika mtengo, njira yotsika ya torque (yosavuta kupanga yokha), kuposa mavavu okhala ndi zitsulo.

Kuchotsa katatu kumagwiritsidwa ntchito popanga ike high pressure steam (yoposa 150 PSI), kutentha kwambiri, mpweya wotentha kwambiri ndi mafuta, kutentha kwambiri kumakhala kwabwino kwa mtundu uwu wa vavu chifukwa mpando wachitsulo umafunika pampando wofewa.