Yore mi temo kero pa valve mi tic.

Mapodi ju ketho valve, pima tego pa valve man pimo kero pa valve umaku jutim iwi kom mi pimo valve hydraulic. 20% pa low-pressure valves umaku ju nen gi iwi rwom, man 100% umaku ju nen gi ka gipe ku rwom; 100% pa valve ma tek man ma tek ucikere ni nen. Jam tic ma pol kare jutiyo kudu pi pimo tego pa valve utiye pii, moo, yamu, yamo, nitrogen, man mange. Yore mi pimo tego pa valve mi tic ma uketho i iye valve mi yamo utiye ma e:

Yore mi pimo tego pa valve pa butterfly

Temo pa tego pa valve mi butterfly utiye marom ku pa globe valve. I lembe mi temo tic pa butterfly valve, piny ma jube temo kudu ucikere ni wok kud i thenge ma mol pa piny ne, butterfly plate ucikere ni yabe, thenge mange ucikere ni cego, man kero pa injection ucikere ni tuc i wel ma juketho; ingey neno nia pii moko mbe i packing man seals mukende, cego butterfly plate, yab thenge mange, man nen butterfly valve. Leak moko mbe i plate seal ma juyike. Butterfly valve ma jutiyo kudu pi jwigo pii copo bedu ngo ma jutemo pi tic pa sealing.

Yore mi pimo tego pa valve

Check valve test state: the axis of lift check valve disc is in position perpendicular to horizontal; axis pa swing check valve channel man disc axis utiye i kabedu ma rom ku line ma lageng.

I kare mi pimo tego, piny ma pimo eca jukelo kud i dhugola ni wel ma juketho, man thenge mange jucego, man juyike ni neno nia valve body man valve cover epe ku leakage.

I lembe mi temo, piny ma jutiyo kudu pi temo jukelo kud i dhugola mi wok, man kabedo mi dhugola jubedu ka ngiyo i dhugola mi donjo, man leak moko mbe i packing man gasket.

Yore mi pimo kero pa gate valve

Tem pa tego pa valve mi dhugola utiye marom ku pa globe valve. Tye yore aryo mi pimo tek pa gate valve.

①Yab dhugola mi weko tego pa valve umedire nitundo i wel ma juketho; kadong cego dhugola, kwany valve mi dhugola pio pio, nen ka nyo pii moko nuti i dhugola mi thenge ario zo, nyo iket test medium i plug mi valve cover ni wel ma jukwanu, nen ka cego utiye i thenge ario mi dhugola. Yore ma malu eca julwongo ni intermediate pressure test. Yore maeni umaku ngo jutii kudu pi temo cing ikum valve mi dhugola ma diameter migi tiye piny pa DN32mm.

②Yo mange utiye mi yabo dhugola mi ketho tego pa valve umedire nitundo i wel ma juketho; kadong cego dhugola, yab thenge acel pa blind plate, man inen ka kabedo ma juketho i iye pii ube mol. I ngeye lok cen man idok i penji ma malu nitundu edaru.

Temo tek pa packing man gasket pa pneumatic gate valve jubitimo mapodi jutimo ngo test pa gate.

Yore mi pimo kero pa valve ma dwoko piny kero

①Tem pa tego pa valve ma jwigo kero juyike ingey temo pa piny acel acel, man jucopo temo de ingey ketho. Kare mi temo tego: 1min pi DN<50mm; makadhu dakika 2 pi DN65～150mm; makadhu dakika 3 pi DN>150mm.

I ngei ma bellows ku jam piny moko udaru welde, med 1.5 pa pressure ma malu pa valve ma dwoko pressure piny, man itim test mi tego ku yamu.

②Tem mi rwom pa yamo jubitimo nimakere ku piny ma tiyo kudu. Ka ibe temo ku yamu nyo pii, tem i 1.1 pa pressure ma jukwanu; ka ibe temo ku yamo, ti ku tegu ma malu ma juyiyu i thenge mi lyethu. Tung tung ma nuti kind kero mi donjo ku kero mi wotho ucikere ni bedu piny pa 0.2MPa. Yore mi temo utiye: ingey dwoko kero mi donjo, lok moth moth screw mi valve, wek kero mi wotho ulokre maber man nja i kind wel ma malu man ma piny, manangu epe ku rwom ma malu nyo jamming. Pi steam pressure reducing valve, ka inlet pressure judwoko cen, valve ne cego ingey valve cego, man outlet pressure ubedo ma malu man ma piny. Ikind dakika 2, medu pa kero mi wotho ucikere ni rombu ku piny ma mitere i Table 4.176-22. I saa marom, pipeline ma ngeye pa valve umaku ubed. pi valve ma dwoko piny kero pa pii man yamu, ka kero mi donjo ubedo man kero mi wok woko utiye zero, valve mi dwoko piny kero ubedo cego pi temo tek, man leak moko mbe ikind dakika 2.

Yore mi temo kero pa globe valve man throttle valve

Pi temo tego pa globe valve man throttle valve, valve ma jucoko ju ketho i pressure test frame, valve disc ju yabo, medium ju ketho i wel ma juketho, man valve body man valve cover ju neno pi lyethu man leakage. Tem pa tego copo bedu bende iwi piny acel. Tem mi tightness utiye kende kende pi shut-off valve. I kare mi temo, valve stem pa globe valve utiye i rwom ma malu, valve disc oyabe, medium jukelo kud i thenge ma piny pa valve disc ni wel ma juketho, man packing man gasket jubi neno; ingey kadhu i penji, valve disc cego, man thenge mukende juyabu pi nineno ka nyo pii moko utiye. Ka tego man tek pa valve umitu jutim, tego pa valve jucopo timo mir acel, man pressure judwoko piny ni wel ma juketho pa tightness test, man packing ku gasket jubi ngiyo; i ngeye valve disc cego, man outlet end oyabe pi nineno ka sealing surface ubedo ka mol.

Yore mi pimo tegu pa valve

Temo tego pa pneumatic ball valve umaku jutim i kare ma ball valve utiye nusu.

①Tem mi cego valve ma ucungo iwi pii: ket valve i rwom ma oyabe nusu, keth piny ma jutemo kudu i thenge acel, man cego thenge mange; loko opira wang mapol, yabo thenge ma cego ka valve utiye i kabedo ma cego, man nen tic pa sealing i packing man gasket i sawa marom. Omako kud obed ku pii ma mol. Piny ma jutiyo kudu pi pimo eca jukelo kud i thenge mange man judwoko pima ma malu eni kendu.

②Tem mi cego ball valve: mapodi itimo test, lok ball wang mapol manangu epe ku peko, fixed ball valve utiye i rwom ma cego, man test medium jubikethe kud i thenge acel ni wel ma juketho; tic mi ketho dhugola mi acaki jupimu ku pressure gauge, man bedo pa pressure gauge ubedo 0.5 ni 1, rwom ubedo 1.6 wang pa pressure ma jutemo. I kind kare ma juketho, ka epe ku depressurization phenomenon, eromo; man ikel piny mi pimo kud i thenge mange, man idok i pima ma malu. I ngeye, keth valve i rwom ma oyabere nusu, cego thenge ario zoo, man ipong kabedo ma iye ku piny ma iye. Nen packing man gasket ithe kero mi temo, man kud ubed ku pii ma mol.

③Ball valve ma yo adek jubi temo pi neno ka etiye tek i kabedo acel acel.