Izidingo zokufakwa kwevalvu yokulawula ugesi

I-valve yokulawula kagesi ifakwe epayipini futhi ithintana ngqo nendawo yokusebenza, futhi ithinteka izimo zokusebenza ezinzima ezifana nokushisa okuphezulu, ukucindezela okukhulu, ukugqwala nokungqubuzana isikhathi eside. Ngakho-ke, ukukhetha ikhwalithi ye-valve elawulayo kunethonya elikhulu ekulawuleni uhlelo. Ngakho-ke, ukukhethwa okulungile nokunengqondo nokufakwa kwe-valve yokulawula kubaluleke kakhulu.

1. I-valve yokulawula kagesi kufanele ihlolwe futhi iqinisekiswe kuqala, futhi ifakwe ngemva kokuhlanzwa kwepayipi.

2. Isikhundla sokufakwa kwe-valve yokulawula kagesi kufanele kube lula ukusebenza nokugcinwa, ukuze abasebenzi bakwazi ukwenza ukugcinwa nokusebenza, futhi isiteji kufanele sibekwe uma kunesidingo.

3. Uma i-valve yokulawula kagesi ifakwe endaweni yokudlidliza, izinyathelo zokulwa nokudlidliza kufanele zicatshangelwe.

4. Ivalvu yokulawula kagesi kufanele ifakwe iqonde futhi iqonde epayipini elivundlile. Ivalvu elawulayo enobubanzi obuncane be-DN≥50 kufanele ibe nezisekelo ezihlala njalo epayipini ngaphambi nangemuva kwevalvu.

5. Ngama-valve okulawula kagesi ngaphandle kwe-valve positioner, kungcono ukufaka i-gauge encane yokucindezela ekhombisa isignali yokulawula ekhanda le-membrane.

6. Kufanele kube nesikhala esanele ezingxenyeni ezingenhla nezingezansi zevalvu yokulawula kagesi ukuze kukhishwe i-actuator, i-valve trim, ne-flange engezansi kanye nepulaki ye-valve ngesikhathi sokulungiswa.

7. Indawo yokufaka i-valve yokulawula kagesi kufanele ihlangabezane nezidingo zomklamo wenqubo, futhi kufanele ibe seduze nethuluzi eliyinhloko elibonisayo elihlobene nayo, ukuze ithuluzi eliyinhloko likwazi ukubonwa lapho i-valve yokudlula isebenza ngesandla;

8. I-valve yokulawula kufanele ihlelwe phansi noma yesikhulumi futhi ilungele ukusebenza nokugcinwa.

9. Ivalvu elawulayo kufanele ifakwe iqonde futhi iqonde epayipini elivundlile. Ngaphansi kwezimo ezikhethekile, ingafakwa ngokuvundlile noma ngokugobile, kodwa kufanele isekelwe;

10. Uma iqembu le-valve elilawulayo (kuhlanganise ne-valve elawulayo, i-valve ye-bypass, i-valve yokuvala kanye ne-drain valve) ifakwe ngokuqondile, i-valve elawulayo kufanele ifakwe ngaphansi kwe-bypass. Ama-valve alawulayo anobubanzi obuncane obungaphansi kuka-25mm nawo angafakwa ngaphezu kwe-bypass.