Valavu yapamwamba kwambiri ya pulagi yofewa ya mipando ya mafakitale Valavu yopaka ya pulagi yofewa yopangidwa ndi fakitale ya China Wopanga fakitale
Kodi valavu yolumikizira chikwama cha mpando wofewa ndi chiyani?
Valavu yofewa ya pulagi ya mpando Ili ndi dzenje pakati pa pulagi motsatira mzere wake. Mphepete iyi imatsekedwa pansi ndipo imayikidwa cholumikizira cholumikizira pamwamba. Cholumikizira chimayikidwa m'dzenjemo, ndipo valavu yowunikira pansi pa cholumikizira cholumikizira imaletsa cholumikizira kuti chisayende mobwerera m'mbuyo. Cholumikizira chimatuluka kuchokera pakati pa dzenjelo kudzera m'mabowo a radial kupita ku mipata yamafuta yomwe imatambalala kutalika kwa malo okhala pulagi.
Pofuna kuchepetsa mphamvu ya ma valve a pulagi opangidwa ndi mipando yachitsulo,Valavu yofewa ya pulagi ya mpandoapangidwa ndikugwiritsidwa ntchito kwambiri. Kuwonjezera pa makhalidwe a ma valve a pulagi opangidwa ndi mafuta wamba, ma valve a pulagi ogwirizana ndi kupanikizika ali ndi makhalidwe awa:
- 1. Pamene valavu yatsegulidwa, kupanikizika m'chipinda chapansi cha thupi la valavu kumayenderana ndi kupsinjika kwapakati mu payipi. Mafuta otsekera opanikizika kwambiri m'chipinda chapamwamba amachititsa kuti thupi la pulagi likankhidwe pansi, ndipo mpata pang'ono umawonekera pakati pa phula ndi pamwamba pa thupi la valavu, mphamvu ya thupi la pulagi yozungulira imachepa bwino.
- 2. Mu nyengo yotentha kwambiri, kufalikira kwa kutentha kwa pulagi kumatha kuyamwa ndi kukwera ndi kugwa kwake. Valvu ya pulagi yopaka mafuta, ngakhale kugwiritsa ntchito mafuta opaka mafuta kungachepetse mphamvu yotsegulira ndi kutseka, koma kungayambitse kuipitsidwa kwa sing'anga. Chifukwa chake, mafuta otsekedwa amasankhidwa kuti agwirizane ndi momwe amagwirira ntchito.
Zinthu zazikulu za valavu yolumikizira mipando yofewa
Makhalidwe ndi ubwino waValavu yofewa ya pulagi ya mpando
- 1. Chogulitsachi chili ndi kapangidwe koyenera, kusindikiza kodalirika, magwiridwe antchito abwino komanso mawonekedwe okongola.
- 2. Ili ndi kapangidwe kake ka mphamvu yolumikizirana bwino komanso yoyatsa/kuzima pang'onopang'ono.
- 3. Mzere wa mafuta umayikidwa pakati pa thupi la valavu ndi pamwamba pa chisindikizo, zomwe zingalowetse mafuta otsekera kuti awonjezere mphamvu yotsekera.
Mafotokozedwe aukadaulo a valavu yolumikizira mipando yofewa
Mafotokozedwe aValavu yofewa ya pulagi ya mpando.
| Kapangidwe ndi kupanga | API 599, API 6D |
| Kukula Kwapadera | NPS 1/2” ~ 24” |
| Kuyeza kwa Kupanikizika | Kalasi 150LB ~ 1500LB |
| Kulumikiza komaliza | Flange (RF, FF, RTJ), Butt Welded (BW), Socket Welded (SW) |
| Kuyeza kutentha kwa kuthamanga kwa magazi | ASME B16.34 |
| Miyeso ya maso ndi maso | ASME B16.10 |
| Gawo la Flange | ASME B16.5 |
| Kuwotcherera matako | ASME B16.25 |
Kugwiritsa ntchito valavu yofewa ya pulagi ya mpando
Valavu yofewa ya pulagi ya mpandoimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana monga mafuta, makampani opanga mankhwala, mankhwala, feteleza, makampani opanga magetsi ndi zina zotero. Imagwiritsidwa ntchito pansi pa mphamvu ya CLASS150-1500LBS, ndipo imagwira ntchito pa kutentha kwa -40~450°C, Madzi, Gasi, Nthunzi ndi Mafuta ndi zina zotero.
