Isishwankathelo

Ivalvu yebhola edadayo isetyenziswa kakhulu xa kusetyenzwa uxinzelelo oluphakathi okanye oluphantsi (ngaphantsi kwe-900LB), kwaye idla ngokuba nomzimba we-2pcs okanye i-3pcs. Nangona ulwakhiwo lolu luhlu lulula kodwa ukusebenza kokutywina kuthembekile.

• Ibhola Elidadayo

• Umzimba Owahlulweyo, Umzimba Ongamaqhekeza Amabini okanye Amathathu

• Ukuphela kokungena

• Ikhuselekile emlilweni kwi-API 607

• Uyilo oluchasene nokungashukumi

• Ukuthintela ukuqhushumba

• I-torque ephantsi

• Tshixa isixhobo

a) Uyilo kunye noMveliso: API 6D, BS 5351, ASME B16.34, API 608

b) Ubuso ngobuso: API 6D, API B16.10, EN 558, DIN 3202

c) Uqhagamshelo Lokugqibela: ASME B16.5, ASME B16.25, EN 1092, GOST 12820

d) Uvavanyo kunye noHlolo: API 6D, EN 12266, API 598

Blisiqu esingenasiphako

Ngenjongo yokuthintela isiqu ukuba singabhabhi nto leyo ebangela ukunyuka okungaqhelekanga koxinzelelo lwangaphakathi lwevalvu, igxalaba liqiniswe kwinxalenye esezantsi yesiqu. Ukongeza, ukuze kuthintelwe ukuvuza okubangelwa kukutsha kwesethi yokupakisha yesiqu emlilweni, i-thrust bearing ibekwa kwindawo yokudibana kwegxalaba kwinxalenye esezantsi yesiqu kunye nomzimba wevalvu. Ngaloo ndlela kwakhiwa isihlalo sesitywina esichaseneyo esiya kuthintela ukuvuza kwaye siphephe ingozi.

Uyilo olukhuselekileyo lokulwa nomlilo

Xa kutsha ngexesha lokusetyenziswa kwevalvu, iringi yesihlalo eyenziwe ngezinto ezingezizo ezesinyithi iya konakala phantsi kobushushu obuphezulu. Xa isihlalo kunye neringi ye-O zitshisiwe, isibambi sesihlalo kunye nomzimba ziya kuvalwa ngegrafiti ekhuselekileyo yomlilo.

Isixhobo esichasene nokunganyakazi

Ivalvu yebhola inesakhiwo esichasene ne-static kwaye isebenzisa isixhobo sokukhupha umbane ongashukumiyo ukwenza ngokuthe ngqo umjelo ongashukumiyo phakathi kwebhola nomzimba okanye ukwenza umjelo ongashukumiyo phakathi kwebhola nomzimba ngesiqu, ukuze ikhuphe umbane ongashukumiyo oveliswa kukungqubana ngexesha lokuvulwa nokuvalwa kwebhola kunye nesihlalo ngepayipi, kuthintelwe umlilo okanye ukuqhuma okunokubangelwa yintlantsi engashukumiyo kunye nokuqinisekisa ukhuseleko lwenkqubo.

I-NSEN ilandela ngokungqongqo iinkonzo zokulungisa zasimahla, ukutshintshwa kwasimahla kunye nokubuyiselwa kwasimahla kwiinyanga ezili-18 emva kokuba ivalvu ingasebenzi okanye iinyanga ezili-12 emva kokufakwa nokusetyenziswa kwipayipi emva kokusebenza kwangaphambili (ekuza kuqala). 

Kwimeko apho ivalvu iye yawa ngenxa yengxaki yomgangatho ngexesha lokusetyenziswa kwipayipi ngexesha lewaranti yomgangatho, i-NSEN iya kubonelela ngenkonzo yewaranti yomgangatho yasimahla. Inkonzo ayizukuphela de kube ukusilela kulungisiwe kwaye ivalvu iyasebenza kwaye umthengi utyikitye ileta yokuqinisekisa.

Emva kokuphela kwexesha elichaziweyo, i-NSEN iqinisekisa ukubonelela abasebenzisi ngeenkonzo zobugcisa ezisemgangathweni ngexesha nanini na xa imveliso ifuna ukulungiswa nokugcinwa.