1. Lapho ulinganisa uketshezi, i-vortex flowmeter kufanele ifakwe kupayipi eligcwaliswe ngokuphelele ngomthamo olinganisiwe.
2. Lapho i-vortex flowmeter ifakwa kupayipi elibekwe ngokuvundlile, ithonya lokushisa kwento kulowo osidlulisayo kufanele icatshangelwe ngokuphelele.
3. Lapho i-vortex flowmeter ifakiwe kwipayipi elime mpo, kufanele kuhlangatshezwane nalezi zidingo ezilandelayo:
a) Lapho ulinganisa igesi. Uketshezi lungageleza luye kunoma iluphi uhlangothi;
b) Lapho ulinganisa uketshezi, uketshezi kufanele lugeleze ukusuka phansi luye phezulu.
4. Umsele ongezansi we-vortex flowmeter kufanele ube nobude bamapayipi oqondile ongekho ngaphansi kuka-5D (ububanzi bemitha), nobude bepayipi elikhuphukayo elikhuphukayo le-vortex flowmeter kufanele lihlangabezane nalezi zidingo ezilandelayo:
a) Lapho ububanzi bepayipi lenqubo likhulu kunobubanzi bethuluzi (D) futhi ububanzi budinga ukwehliswa, ngeke lube ngaphansi kuka-15D;
b) Lapho ububanzi bepayipi lenqubo lincane kunobubanzi bethuluzi (D) futhi ububanzi budinga ukunwetshwa, ngeke lube ngaphansi kuka-18D;
c) Lapho kukhona indololwane noma itee elingu-900 phambi kwetheminali, hhayi ngaphansi kuka-20D;
d) Lapho kunezindololwane ezimbili ezilandelanayo ezingama-900 endizeni eyodwa phambi kwe-flowmeter, hhayi ngaphansi kuka-40D;
e) Lapho uxhuma izindololwane ezimbili ezingama-900 ezindizeni ezihlukene phambi kwe-flowmeter, hhayi ngaphansi kuka-40D;
f) Lapho imitha yokugeleza ifakwa ezansi nomphimbo we-valve elawulayo, hhayi ngaphansi kuka-50D;
g) Isilungisi esinobude obungeqi ngaphansi kuka-2D sifakwe phambi kwe-flowmeter, i-2D phambi kwesilungisi, nobude bepayipi eliqondile elingekho ngaphansi kuka-8D ngemuva komlungisi.
5. Lapho igesi ingavela kuketshezi oluhloliwe, kufanele kufakwe i-degasser.
6. I-vortex flowmeter kufanele ifakwe endaweni lapho ingeke idale ukuthi uketshezi luphefumule.
7. Ukuphambuka phakathi kobubanzi obungaphakathi bezingxenye zepayipi eziqonde ngaphambili nangemuva ze-vortex flowmeter nobubanzi obangaphakathi be-flowmeter akufanele kube ngaphezu kuka-3%.
8. Ezindaweni lapho i-elementi yokuthola (i-vortex generator) ingalimala, ama-valve wokuma angaphambili nangemuva nama-valve okudlula kufanele engezwe ekufakweni kwepayipi kwe-vortex flowmeter, kanye ne-plug-in vortex flowmeter kufanele ifakwe i-shut- off ibhola valve.
9. Ama-flowmeters we-Vortex akufanele afakwe ezindaweni ezingaphansi kokudlidliza.
Isikhathi Iposi: Apr-26-2021