Antis ya i-install so balbula, say valve strength test tan valve sealing test et nepeg ya gawaen ed valve hydraulic test bench. 20% na saray balbula ya abeba so presyon to et nepeg ya random ya inspeksionen, tan 100% so nepeg ya inspeksionen no ag ira kualipikado; 100% na medium tan high-pressure valves so nepeg ya inspeksionen. Say kaslakan ya uusaren ya media parad panagsukimat ed presyon na balbula et say danum, larak, dagem, singaw, nitroheno, tan arum nira. Saray paraan na panagsukimat ed presyon parad saray balbula ed industriya kaiba lay pneumatic valves et onia:
Paraan na panagsubok na presyon na balbula na kulibangbang
Say biskeg na test na pneumatic butterfly valve et pareho ed globe valve. Diad panag-seal performance test na butterfly valve, say test medium et nepeg ya ipaloob manlapud flow end na medium, say butterfly plate et nepeg ya lukasan, say sananey ya sampot et nepeg ya isara, tan say injection pressure et nepeg ya onsabi ed nibaga ya balor; kayari na pan-check ya anggapoy leakage ed packing tan arum niran seal, isara so butterfly plate, lukasan so sananey a sampot, tan nengnengen so butterfly valve. Anggapoy leakage ed plate seal ya kwalipikado. Say butterfly valve ya uusaren ed regulasyon na agos et nayarin ag nasubok parad performance na sealing.
Paraan na pressure test na check valve
Check valve test state: say axis na lift check valve disc et walad posisyon ya perpendikular ed horizontal; say axis na swing check valve channel tan say disc axis et walad posisyon ya ngalngalin mipara ed horizontal ya linya.
Legan na strength test, say test medium et ipaloob manlapud inlet ya anggad nibaga ya balor, tan say sananey a sampot et isara, tan kualipikado ya nanengneng ya anggapoy leakage na laman na balbula tan say sakbong na balbula.
Diad sealing test, say test medium et ipaloob manlapud outlet end, tan say sealing surface et nengnengen ed inlet end, tan anggapoy leakage ed packing tan gasket ya kwalipikado.
Paraan na pressure test na gate valve
Say biskeg na gate valve et pareho ed globe valve. Walay duaran paraan parad pansubok ed inka-malet na balbula na gate.
①Lukasan so puerta pian ontagey so presyon ed balbula ed nibaga ya balor; insan isara so gate, ekalen a tampol so gate valve, nengnengen no walay leakage ed saray seal ed duaran dapag na gate, odino direktan i-inject so test medium ed plug na valve cover ya anggad nibaga ya balor, nengnengen iray seal ed duaran dapag na gate. Say paraan ed tagey et tatawagen ya intermediate pressure test. Sayan paraan et ag nepeg ya usaren parad saray sealing test ed saray gate valve ya say diametro to et abeba nen say DN32mm.
②Say sananey nin paraan et say pangilukas ed puerta pian ontagey so pressure na test na balbula ed nibaga ya balor; insan isara so puerta, lukasan so sakey a sampot na blind plate, tan nengnengen no kasin onlelereg so sealing surface. Insan mo pawilen tan uliten so test ed tagey anggad nakualipika.
Say tightness test na packing tan gasket na pneumatic gate valve et nepeg ya gawaen antis na tightness test na gate.
Paraan na panagsubok na presyon na balbula ya mamapaabeba na presyon
①Say strength test na pressure reducing valve et kaslakan ya i-assemble kayari na single-piece test, tan nayarin suboken met kayari na i-assemble. Karukey na strength test: 1min parad DN<50mm; masulok ya 2min parad DN65～150mm; masulok ya 3min parad DN>150mm.
Kayari na pan-welding na saray bellows tan saray kabiangan, mangiyan na 1.5 beses ed sankatageyan a presyon na pressure reducing valve, tan manggawa na strength test panamegley na dagem.
②Say panagsukimat ed ag-inkayadyari na dagem et nepeg ya gawaen unong ed aktual ya paraan na pantratrabahoan. No mansusubok ed dagem o danum, mansubok ed 1.1 beses ya nominal ya presyon; no mansusubok ed singaw, usaren so sankatageyan ya presyon na trabaho ya nayarin gawaen ed silong na temperatura na trabaho. Say pandumaan na inlet pressure tan say outlet pressure et kaukolan ya ag-onkulang ed 0.2MPa. Say paraan na panag-test et: kayari na pangi-adjust ed inlet pressure, kalkalnan i-adjust so adjusting screw na balbula, pian say outlet pressure et sensitibo tan tuloytuloy ya manguman ed loob na range na maximum tan minimum values, ya anggapoy stagnation odino jamming. Parad steam pressure reducing valve, no say inlet pressure et i-adjust, say balbula et isara kayari na pansara na balbula, tan say outlet pressure et sankatageyan tan sankaabebaan. Diad loob na 2min, say itatagey na presyon na paway et nepeg ya makasumpal ed saray kakaukolanen ed Table 4.176-22. Diad saman met a panaon, say tubo ed benegan na balbula et nepeg ya Say volume et mitunosan ed saray kakaukolanen ed Table 4.18 pian magmaliw ya kualipikado; parad saray balbula ya mamapaabeba na presyon na danum tan dagem, no say presyon na iloob et niletneg tan say presyon na paway et zero, say balbula ya mamapaabeba na presyon et isara parad tightness test, tan anggapoy leakage ed loob na 2 minuto ya kwalipikado.
Paraan na pressure test parad globe valve tan throttle valve
Parad strength test na globe valve tan throttle valve, say assembled valve et kaslakan ya iiyan ed pressure test frame, say valve disc et lukasan, say medium et i-inject ed nibaga ya balor, tan say valve body tan valve cover et nengnengen no walay linget tan leakage. Say strength test et nayarin gawaen met ed sakey a piraso. Say tightness test et para labat ed shut-off valve. Legan na test, say valve stem na globe valve et akaalagey, say valve disc et nalukasan, say medium et niloob manlapud leksab na valve disc ya anggad nibaga ya balor, tan say packing tan gasket et na-check; kayari na pakapasa ed test, say valve disc et isara, tan say sananey a sampot et lukasan pian nanengneng no walay onlelereg. No say biskeg tan inkapekder na balbula so gawaen, say biskeg na subok so nayarin gawaen nin unona, insan say presyon so nabawasan ed nibaga ya balor na inkapekder na subok, tan say packing tan gasket so nengnengen; insan isara so disc na balbula, tan lukasan so sampot na outlet pian nanengneng no kasin onlelereg so tapew na sealing.
Paraan na panagsukimat ed presyon na balbula na bola
Say strength test na pneumatic ball valve et nepeg ya gawaen legan ya kapalduan lukas so ball valve.
①Subok ed panagsel na floating ball valve: iyan so balbula ed kapalduan lukas a kipapasen, ipaloob so test medium ed sakey a sampot, insan isara so sananey a sampot; ibalikas so bola na pigaran danay, lukasan so akasara ya sampot no say balbula et walad akasara ya estado, tan nengnengen so performance na sealing ed packing tan gasket ed parehon panaon. Nepeg ya anggapoy onlelereg. Say test medium et ipaloob manlapud biek a sampot tan naulit so test ed tagey.
②Say panag-seal na fixed ball valve: antis na test, i-rotate so bola na pigaran danay ya anggapoy karga, say fixed ball valve et walad sarado ya estado, tan say test medium et ipaloob manlapud sakey a sampot ya anggad nibaga ya balor; say performance na sealing na introduction end et na-check panamegley na pressure gauge, tan say inkasusto na pressure gauge et 0.5 anggad 1, say range et 1.6 times ed test pressure. Diad loob na aturon panaon, no anggapoy depressurization phenomenon, kualipikado itan; insan mo ipaloob so test medium manlapud biek a sampot, tan uliten so test ed tagey. Insan, iiyan so balbula ed kapalduan lukas a kipapasen, isara so duaran sampot, tan panoen so loob na abut na medium. I-check so packing tan gasket diad silong na test pressure, tan nepeg ya anggapoy leakage.
③Say three-way ball valve et nepeg ya suboken no kasin malet ed kada posisyon.
Oras na pangi-post: Mar-02-2022
