Posachedwapa, mavavu a Jinbin adasinthidwa makonda kwa makasitomala akunja okhala ndi mavavu amipira ndi ma valve agulugufe.Ma valve osinthika awa kwa makasitomala aku Russia adalandiridwa ndi makasitomala aku Russia ndikukwaniritsa zofunikira zaukadaulo.Pakalipano, ma valve awa atumizidwa ndikuperekedwa bwino kwa makasitomala aku Russia kunja.

Vavu yagulugufe wowotcherera ndi zinthu zakuthupi za WCB zokhala ndi PN25.Kukula kwake ndi kosiyana ndi DN800-DN1200.Mapangidwe a valavu ya gulugufe ndi eccentric kapangidwe.

Vavu yowotcherera ya mpira ili ndi zinthu za WCB, PN25, malekezero owotcherera.