Amaphuzu aqakathekileko wokufakwa kwevalvu yepayipi

I. Ukulungiselela ngaphambi kokufaka

1. Hlola imodeli yokucaciswa kwevalvu, izinga lokugandeleleka, nokukhonjwa kwendlela yokugeleza ukuqinisekisa bona ihlangabezana neemfuneko zokuklama.

2. Hlola ukuhlanzeka komgodi womzimba wevalvu begodu ususe izinto ezivikelako zokupakisha nezinto zangaphandle.

3. Amavalvu wokuhlanganisa ama-butt welding kufuze akhiwe ngaphambilini ngama-groove, begodu amavalvu wokuhlanganisa ama-flange kufuze ahlole ubuqotho bendawo yokuvala.

II. Ukulawula indlela yokufaka

1. Ivalvu ye-globe kanyeivalvu yokuhlola ukuphakamisa okujamelekokufanele ifakwe ngokuqinileko ngendlela etjengiswa mcibisholo emzimbeni wevalvu.

2. Ngokomthetho,ivalvu engakhuphukiko, ivalvu yevithamini yomhlobo wamanzi, begodu amavalvu webholo angafakwa kizo zombili iinhlangothi, kodwana kufanele kutjhejwe ukusebenza lula.

3. Amavalvu kagesi / womoya atlhoga ukubekela isikhala sokusebenza nokugcinwa kwe-actuator.

III. Iinqophiso zokufaka ukuwelda

1. I-butt welding valve kufanele igcinwe ivulekile ngesigamu ngesikhathi sokuwelda ukukhandela ukujama okubangelwa kuguquguquka komtjhiso.

2. Sebenzisa i-argon arc welding ukwenza isisekelo, begodu ulawule amazinga womtjhiso we-interlayer bona angadluli amazinga womtjhiso wevalvu.

3. Ngemva kokuwelda, ivalvu kufanele ihlolwe ukusebenza ukuqinisekisa bona ivuleka begodu ivale kuhle.

IV. Amaphuzu aqakathekileko wokuthintana kwe-flange

1. Indawo yokuvala ye-flange ihlala ifana, begodu ukuphambuka okukhulu okuvunyelweko akudluli i-0.15% yobubanzi bangaphandle be-flange.

2. I-gasket kufanele ibekwe phakathi, amabhawudo kufanele aqiniswe ngokulingana nangokulingana, begodu i-torque elinganisiweko kufanele ifinyelelwe kathathu.

3. Amabhawudo wokuhlanganisa amavalvu womtjhiso aphezulu kufanele aqiniswe kabili ebujameni obutjhisako.

V. Ukulawulwa kwekhwalithi

1. Ukuhlolwa kwamandla nokuhlolwa kokuvala kuyatlhogeka ngemva kokufaka.

2. Lokha nawuhlanza ihlelo, ivalvu yokulawula, imitha yokugeleza neminye imitjhini kufanele idlule.

3. Zalisa irekhodi lokufaka, kufaka hlangana idatha eqakathekileko njengenomboro yendawo yevalvu, umfutho wokuhlolwa, i-torque yokusebenza, njll.

Qaphela: Ivalvu akukafaneli isetjenziswe njengendawo yokusekela iphayiphi. Amavalvu amakhulu atlhoga ifreyimu yokusekela ehlukileko. Ngemva kokufakwa, ivalvu kufanele ibe sebujameni obuvalekileko begodu ivikelwe ukubalekela ukulimala kokusebenza okuphambeneko.