Mavharuvhu ekuvharisa eSVA anowanikwa mumakona uye pakarepo shanduro uye neStandard neck (SVA-S) uye Mutsipa wakareba (SVA-L).
Mavharuvhu ekuvharisa akagadzirwa kuti asangane nezvose zvinodiwa zvemaindasitiri efiriji uye akagadzirirwa kupa mafambiro akanaka ekuyerera uye ari nyore kubvisa nekugadzirisa kana zvichidikanwa.
Iyo valve cone yakagadzirirwa kuve nechokwadi yekuvhara yakakwana uye inomira yakakwira system pulsation uye vibration, iyo inogona kuve iripo zvakananga mumutsara wekuburitsa.