hat
Kòz tiyo kase fè se: anvan ak apre valv mwayen presyon nan se fèmen nan balans men chak lòt, "wè-wè" eta, chèz la valv bat souvan fè, gen kèk materyèl frajil (tankou fè jete, kwiv, elatriye) te fè te valv kouri kase. Nerjaveèi apwòch prevansyon ponp tiyo asye se sèvi ak yon ki pa Peye-retounen severite valv kouri.
eng
Cause broken valve do is: before and after the valve medium pressure is close to balance but each other, “see-saw” state, the valve seat beat often do, some brittle materials (such as cast iron, brass, etc.) made valve run was broken. Stainless steel pipeline pump prevention approach is to use a non-return valve run toughness.