Gate valvesampongbalbula ning parulgagamitan la bilang switch para i-regulate ing flow rate keng pamangamit keng pipeline. syempre, atin pang paralan keng pamamili kareng butterfly valves ampo gate valves.
Ing water supply pipe network, para mabawas ing lalam ning pipeline soil covering, ing pangkabilugan a diametru ning mas maragul a pipe atin yang butterfly valve, at nung ing kalalam ning soil coverage ali ya makabaldugan, pagsikapan mung pilinan ing gate valve, pero ing presyu ning gate valve na pareung specification mas matas ya kesa keng presyu ning butterfly valve. Para keng linya ning kalibre, ing balang lokalidad dapat yang ikonsidera keng balang kasu. ibat keng panaun ning pamangamit kareng milabas a apulung banua, ing pangasira ning butterfly valve mas matas ya kesa kenggate valve, kaya dapat pansinan ing palawakan ing gamit ning gate valve nung paintulutan da reng kundisyun.
kareng milabas a banua, dakal lang domestic valve manufacturers ing ginawa ampo tiru da reng soft seal gate valves, na atin lang makatuking katangian kesa kareng tradisyunal a wedge o parallel double gate valves:
Ingbalbulaing katawan ampo ing bonnet ning soft seal gate valve me-cast la kapamilatan ning precision casting method, na mebuu keng metung a panaun, ali ya me-machine, ampo ali ya gagamit sealing copper rings, makatipid kareng non-ferrous metals.
Ala yang pit keng lalam ningmalambut a seal gate valve, alang pamitipun slag, ampo ing failure rate ninggate valvemababa ing pamagbukas at pamagsara.
Ing soft seal lined valve plate parehu ya sukad ampo malyari yang mipalitan.
Uli na niti, ing soft seal gate valve maging yang porma na ing industriya ning suplay ning danum masaya yang tanggapan. Ngeni, ing diametru ning soft seal gate valve a gagawan da keng china 1500mm ya, pero ing diametru da reng keraklan a manufacturer atyu ya pilatan ning 80-300mm, at dakal la pa reng problema keng domestic manufacturing process. Ing susi ning soft seal gate valve yapin ing rubber lined valve plate, at matas la reng technical requirements ning rubber lined valve plate, at e la ngan makagawa iti deng dayu a manufacturer, at maralas lang sasali at a-assemble ibat king pabrika a maki reliable a kalidad.
Ing copper nut block ning domestic soft sealgate valvemaka-embed ya at makasabit babo ning rubber lining valve plate, kalupa ning istruktura ning gate valve, at ing rubber lining ning valve plate madali yang mabalat pauli ning aktibung friction ning nut block. Para keng soft seal gate valve ning metung a dayu a kumpanya, ing copper nut block makayabe ya keng rubber-lined ram para maging metung a kabilugan, na makalampas kareng kakulangan, pero ing concentricity ning kombinasyun ning valve cover ampo ing valve body mas matas ya.
Makanyan man, nung buklat at isara me ing soft seal gate valve, e ya dapat masyadung makasara, basta ing water-stopping effect miras ya, nung ali, e ya madaling buklat o balatan ing rubber lining. Ing metung a gagawang balbula, keng valve pressure test test, ing pamangamit torque wrench para makontrol ing degree ning pamagsara, antimo ing water company valve operators dapat mu namang tukian ing paralan ning pamagbukas ampo pamagsara.
Nanu ing pamiyaliwa ning pamangamitbalbula ning parulamponggate valves?
Agpang keng obra ampo pamangamit ning gate valve ampo butterfly valve, ing flow resistance ning gate valve malati ya, ing pamag-sealing performance masanting ya, uling ing direksyun ning flow ning gate valve plate ampo ing medium metung yang vertical angle, nung ing gate valve ala ya keng lugal na keng valve plate switch, ing medium a mag-scour keng valve plate gagawan neng mag-vibrate ing valve plate, at mag-vibrate ya ing plate seal ning balbula.
Ing butterfly valve, kilala ya naman bilang flap valve, metung yang simpleng istruktura ning regulating valve, na malyaring gamitan para keng on/off control ning low-pressure pipeline medium butterfly valve yapin ing shut-off part (disc o butterfly plate) bilang metung a disc, a mag-ikot keng paligid ning valve shaft para akwa ing pamagbukas ampo pamagsara ning metung a uri ning valve, a malyaring gamitan para keng pamagkontrol kareng miyayaliwang balbula ning likidu antimo ing angin, danum, singaw, miyayaliwang corrosive media, gabun, laru, liquid metal ampo radioactive media. Iti ing gagawang papil ning pamagputol ampo pamag-throttle keng pipeline. Ing butterfly valve opening and closing part metung yang disc-shaped butterfly plate, na mag rotate keng sarili nang axis keng katawan ning valve, para akwa ing sangkan ning pamagbukas ampo pamagsara o pamag adjust.
Ing butterfly plate tutulak ne ning valve stem, at nung mibalik ya 90°, malyari yang mayari ing pamagbukas at pamagsara. kapamilatan ning pamagbayu keng deflection angle ning butterfly, ing flow rate ning medium malyari yang makontrol.
Kondisyun ning obra at medium:Balbula ning parulmasanting ya para keng pamagdala kareng miyayaliwang corrosive ampo non-corrosive fluid media pipelines keng engineering systems antimo reng furnace, coal gas, natural gas, liquefied petroleum gas, city gas, mainit ampo marimlang angin, chemical smelting ampo power generation environmental protection, suplay ning danum keng gusali ampo drainage, atbp., ampo magagamit ya para i-regulate ampo pututan ing dagus ning media.
Ing gate valve (gate valve) metung yang makabuklat ampo makasara a bage ning gate, ing direksyun ning kimut ning gate perpendicular ya keng direksyun ning fluid, ing gate valve malyari ya mung lubus a mibuklat ampo makasara, ing discomfort da reng parameters ning pasbul miyayaliwa la, keraklan 5°, nung ing medium a temperatura ali ya matas, 2°5′ ya. Para mas masanting ing kayang pamangawa ampo para a-make up ing pamaglipat ning sealing surface angle keng prosesu ning pamagprosesu, ing klasing ram ayni mayayaus yang elastic ram.
nung inggate valvemakasara ya, ing sealing surface malyari ya mung magdependi keng medium pressure para makaseal, buri ng sabyan, magdependi ya keng medium pressure para i-press ing sealing surface ning ram keng valve seat keng aliwang gilid para makasiguradung makaseal ya ing sealing surface, na self-sealing ya. keraklan kareng gate valves makasara la, buri ng sabyan, nung makasara ya ing valve, ing ram kailangan yang pilit a i-press keng valve seat kapamilatan ning panlual a pwersa para masiguradung masipit ing sealing surface.
Movement mode: Ing gate plate ning gate valve kikimut ya keng matulid a linya keng valve stem, na ausan dang open rod gate valve. Keraklan atin yang trapezoidal thread ing lifting rod, kapamilatan ning nut keng babo ning valve ampo ing guide groove keng valve body, ing rotary motion mibayu ya keng linear motion, buri ng sabyan, ing operating torque mibayu ya keng operating thrust. Potang mibuklat ya ing balbula, nung ing katas ning ram lift katumbas ne ning 1:1 a besis ing diametru ning balbula, ing dagul ning likidu e ya ganap a makasabat, dapot e ya malyaring bantayan ing posisyun a ini kabang mag-operate ya. King aktwal a pamangamit, makamarka ya kapamilatan ning vertex ning stem, ngana wari, ing posisyun a e malyaring ibuklat, antimo ing kayang ganap a makabuklat a posisyun. Para abalu ing lock-up phenomenon ning pamagbayu ning temperatura, keraklan makabuklat ya keng apex position, at kaybat mibalik ya keng 1/2-1 turn bilang posisyun ning ganap a makabuklat a balbula. Uli na niti, ing ganap a makabuklat a posisyun ning balbula makayagpang ya keng posisyun ning ram (ie stroke). Atin yang gate valve stem nut ing gate, at ing handwheel mag rotate ya para mag rotate ya ing valve stem, at ing gate plate makatas ya, ing valve ayni awsan deng rotary rod gate valve o dark rod gate valve.
Oras ning pamagpost: Aug-22-2024
