Kodi Nthawi Yotsegulira ndi Kutseka ya Globe Valve Ndi Chiyani?

Nthawi yotsegulira ndi kutseka yavalavu yapadziko lonsendi nthawi yomwe imatenga kuti diski ya valve isunthe kuchokera pa kutsekedwa kwathunthu kupita ku kutsegulidwa kwathunthu, kapena kuchokera pa kutsegulidwa kwathunthu kubwerera kupita ku kutsekedwa kwathunthu. Chifukwa valavu yozungulira imagwiritsa ntchito tsinde lokwera lolunjika ndi gudumu lamanja kapena chowongolera cha multi-turn, nthawi yake yogwirira ntchito nthawi zambiri imakhala yayitali kuposa mavalavu monga mavalavu a mpira kapena mavalavu a gulugufe.

Nthawi Yodziwika Yotsegulira ndi Kutseka

①Valavu Yozungulira Yogwiritsidwa Ntchito Pamanja

• Kukula kochepa (DN15–DN50):
  Masekondi 5–12ndi kuzungulira kwabwinobwino kwa chiwongolero cha dzanja.

• Kukula kwapakati (DN65–DN150):
  Masekondi 10–25kutengera kuyenda kwa tsinde ndi mphamvu ya wogwiritsa ntchito.

• Masayizi akuluakulu (DN200–DN350 ndi kupitirira apo):
  Masekondi 25–60 kapena kuposerapo, popeza amafunika kutembenuka kambirimbiri kuti asunthe diski.

②Vavu Yoyendetsedwa ndi Magetsi Yopangidwa ndi Magetsi

• Ma actuator ambiri amagetsi amagwira ntchito mkati mwa:
  Masekondi 20–60 (liwiro lokhazikika)
  Ma actuator othamanga pang'onopang'ono angatenge masekondi 120 kuti ma valve akuluakulu apewe nyundo yamadzi.

③Valavu Yoyendetsedwa ndi Pneumatic Globe

• Yachangu kuposa yamagetsi koma yocheperako kuposa ma valve otsegula/ozimitsa.
  Kuchuluka kwa mpweya: masekondi 3-20, kutengera kuchuluka kwa mpweya ndi kukula kwa chotenthetsera.

Chifukwa Chake Ma Valves a Globe Amatenga Nthawi Yaitali Kugwira Ntchito

• ①Tsamba liyenera kuyenda mtunda wautali kuti lisinthe kayendedwe ka madzi molondola.

• ②Gudumu lamanja limafuna kutembenuka kangapo kuti lipewe kusintha kwadzidzidzi kwa kuthamanga kwa mpweya.

• ③Kapangidwe ka valavu kamayang'ana kwambiri kayendetsedwe ka madzi ndi kulondola kwake m'malo mozimitsa mwachangu.

• ④Kugwira ntchito pang'onopang'ono kumathandiza kuchepetsa nyundo yamadzi, makamaka m'machitidwe a m'nyanja ndi m'mafakitale.

Zinthu Zomwe Zimakhudza Nthawi Yogwirira Ntchito

• ①Kukula kwa mavavu ndi kupanikizika

• ②Kukwera kwa ulusi (ulusi wochepa = kuyenda pang'onopang'ono)

• ③Mtundu wa actuator (yamanja, yamagetsi, yampweya, yamadzimadzi)

• ④Kupanikizika kwa dongosolo

• ⑤Kukangana kapena kuwonongeka mkati mwa valavu

• ⑥Kusintha kwa mphamvu ya ma torque kapena liwiro pa ma actuator

Pa ntchito za m'nyanja, kutseka pang'onopang'ono kumagwiritsidwa ntchito mwadala kuteteza machitidwe a madzi a m'nyanja, mizere yolumikizira, ndi makina oziziritsira ku kukwera kwadzidzidzi kwa mphamvu.