1.0 Umehluko phakathi kwamavalvu wesango le-OS&Y namavalvu wesango le-NRS

Okuvame ukubonwa emavalwini wesango yivalvu yesango lesiqu esikhuphukako kanye nevalvu yesango lesiqu elingakhuphukiko, ezifanako, okungukuthi:

(1) Amavalvu wesango avala ngokuthintana hlangana nesihlalo sevalvu nediski yevalvu.

(2) Yomibili imihlobo yamavalvu wesango inediski njengento yokuvula neyokuvala, begodu ukunyakaza kwediski kuqondile endleleni yoketshezi.

(3) Amavalvu wesango angavulwa ngokupheleleko nofana avalwe ngokupheleleko, begodu angeze asetjenziselwa ukulawula nofana ukugandelela.

Njeke, ngimiphi imihluko hlangana nazo?I-TWSsizokuhlathulula umehluko phakathi kwamavalvu wesango lesiqu elikhuphukako kanye namavalvu wesango lesiqu elingakhuphukiko.

I-OS&Y Gate Valve

Ukujikelezisa isondo lezandla kuqhuba isiqu sevalvu eneentambo phezulu nofana phasi, kutjhukumisa isango ukuvula nofana ukuvala ivalvu.

I-NRS Gate Valve

I-Non-Rising Stem (NRS) gate valve, eyaziwa nangokuthi yi-rotating stem gate valve nofana i-non-rising stem wedge gate valve, ine-stem nut efakwe kudiski. Ukujikelezisa isondo lesandla kujika isiqu sevalvu, esiphakamisa nofana sehlisa idiski. Ngokuvamileko, intambo ye-trapezoid yenziwa ngomtjhini ekupheleni okungezansi kwesiqu. Intambo le, esebenzisana nomtjhini wokuqondisa kudiski, itjhugulula ukunyakaza kokujikeleza kube kukunyakaza okulandelanako, ngaleyo ndlela itjhugulula i-torque yokusebenza ibe mamandla wokugandelela.

Ukumadanisa amavalvu we-NRS ne-OS&Y ekusetjenzisweni:

1. Ukubonakala kwesiqu: Isiqu sevalvu yesango le-OS&Y sivulekile ngaphandle begodu sibonakala, kuthi leso sevalvu yesango le-NRS sivalwe ngaphakathi komzimba wevalvu begodu asibonakali.
2. Indlela yokusebenza: Ivalvu yesango le-OS&Y isebenza ngokusebenzisa ukuhlanganiswa kwentambo hlangana nesiqu nesondo lesandla, okuphakamisa nofana kwehlise isiqu nediski. Ku-valve ye-NRS, isondo lezandla lijika isiqu, esijikeleza ngaphakathiidiski, begodu imicu yayo ihlangana ne-nut ediski ukuyikhuphula phezulu nofana phasi.
3. Isitjengiso sendawo: Iintambo zokutjhayela zevalvu yesango le-NRS zingaphakathi. Ngesikhathi sokusebenza, isiqu sijikeleza kwaphela, okwenza bona ukuqinisekiswa okubonwako kwesimo sevalvu kungakghonakali. Ngokuphikisako, imicu yevalvu yesango le-OS&Y ingaphandle, okwenza bona ubujamo bediski bubonwe kuhle begodu ngqo.
4. Isidingo sendawo: Amavalvu wesango le-NRS anesakhiwo esincani esinobude obufanako, atlhoga isikhala esincani sokufaka. Amavalvu wesango le-OS&Y anobude obukhulu lokha nakavulekile, okwenza bona kube nesikhala esithe ngqo.
5. Ukutlhogonyelwa nokusetjenziswa: Isiqu sangaphandle sevalvu yesango le-OS&Y senza kube lula ukutlhogonyelwa nokuthambisa. Iintambo zangaphakathi zevalvu yesango le-NRS zibudisi ukuzilungisa begodu zithambekele ekuguguleni kwemidiya, okwenza bona ivalvu ibe sengozini yokulimala. Ngalokho-ke, amavalvu wesango we-OS&Y anokusetjenziswa okubanzi.

Imiklamo ye-OS&Y gate valve kanye ne-NRS gate valve ihlukaniswe ngalendlela elandelako:

1. I-OS&Y Gate Valve:I-valve stem nut itholakala esimbozweni se-valve nofana ebhakedeni. Lokha nawuvula nofana uvala idiski yevalvu, ukuphakanyiswa nofana ukwehlisa isiqu sevalvu kwenziwa ngokujikelezisa inathi yesiqu sevalvu. Isakhiwo lesi sizuzisa ukuthambisa isiqu sevalvu begodu senza indawo yokuvula nokuvala ibonakale kuhle, kungakho isetjenziswa khulu.
2. I-NRS Gate Valve:I-valve stem nut itholakala ngaphakathi komzimba we-valve begodu ithintana ngqo ne-medium. Lokha nakuvulwa nofana kuvalwa idiski yevalvu, isiqu sevalvu siyajikeleziswa ukufikelela lokhu. Ubuhle besakhiwo lesi kukobana ukuphakama kwevalvu yesango kuhlala kungatjhuguluki, njeke itlhoga indawo encani yokufaka, okwenza bona ilungele amavalvu amakhulu nofana amavalvu anendawo elinganiselwe yokufaka. Umhlobo lo wevalvu kufanele ufakwe isitjengiso sokuvula/ukuvala ukutjengisa ubujamo bevalvu. Ububi besakhiwo lesi kukobana imicu yesiqu sevalvu angeze yagcotshwa begodu ivezwa ngqo emkhakheni, okwenza bona ibe sengozini yokulimala.

Isiphetho

Kalula nje, ubuhle bamavalvu we-stem gate akhuphukako bulele ekuqaleni kwawo lula, ukutlhogonyelwa okulula, nokusebenza okuthembekileko, okwenza bona asetjenziswe qobe. Ngakelinye ihlangothi, ubuhle bamavalvu we-stem gate angakhuphukiko yisakhiwo sawo esincani kanye nokwakhiwa kwawo okulondoloza isikhala, kodwana lokhu kuza ngeendleko zokuzwakala nokutlhogonyelwa lula, ngalokho avamise ukusetjenziswa ebujameni obunemikhawulo yendawo ethileko. Nawukhetha, kufanele unqume bona mhlobobani wevalvu yesango ozoyisebenzisa ngokuya ngendawo ethileko yokufaka, ubujamo bokutlhogomela, kanye nendawo yokusebenza. Ngaphezu kwesikhundla sayo esiphambili emkhakheni wamavalvu wesango, i-TWS nayo itjengise amakghono aqinileko wezobuchwepheshe eendaweni ezinengi ezifanaamavalvu wevithamini, amavalvu wokuhlola, kunyeamavalvu wokulinganisa. Singakusiza ukukhetha umhlobo ofaneleko wesicelo sakho begodu samukele ithuba lokuwenza ngokuvumelana neemfuneko zakho. Sizokunikela ihlathululo ebanzi yomehluko phakathi kwamavalvu wesiqu esikhuphukako nesiqu esingakhuphukiko esigabeni sethu esilandelako. Hlala ubukele.