Ivalvu yeChock

Ivalvu yokutshiza yinxalenye ephambili yomthi weKrisimesi kwaye yenzelwe ukulawula imveliso yequla leoyile, izinto zomzimba kunye nezinto zevalvu yokutshiza zihambelana ngokupheleleyo ne-API 6A kunye ne-NACE MR-0175 Standard Specifications, kwaye isetyenziswa kakhulu ekubholeni ipetroliyam elwandle naphesheya kolwandle. Ivalvu yokutshiza isetyenziselwa kakhulu ukulungisa ukuhamba kunye noxinzelelo lwenkqubo ye-manifold; Kukho iintlobo ezimbini zeevalvu zokulawula ukuhamba: ezizinzileyo nezilungisekayo. Iivalvu zokutshiza ezilungisekayo zahlulwe ngohlobo lwenaliti, uhlobo lwesingxobo sekheji yangaphakathi, uhlobo lwesingxobo sekheji yangaphandle kunye nohlobo lwepleyiti ye-orifice ngokwesakhiwo; Ngokwendlela yokusebenza, inokwahlulwa ibe zimbini ngesandla kunye ne-hydraulic. Uqhagamshelo lokugqibela lwevalvu yokutshiza yintambo okanye iFlange, eqhagamshelwe yi-non okanye i-flange. Ivalvu yokutshiza iwela kwi: ivalvu yokutshiza eyi-positive, ivalvu yokutshiza yenaliti, ivalvu yokutshiza elungisekayo, ivalvu yokutshiza yekheji kunye nevalvu yokutshiza ye-orifice, njl.