valvụ nlele swing na-abịa na oche na-agbanwe agbanwe.Awụnyere na ngwa mgbapụta iji gbochie azụ azụ ha nwere ike iji maka mmiri ọṅụṅụ yana mmiri mkpofu.A na-ejikọta diski ahụ na ogwe osisi site na ohia na-agbanwe agbanwe nke na-enye ohere ka diski na oche valve gbanwee kpọmkwem.Akụkụ niile dị n'ime bụ igwe ductile ejiri epoxy ma ọ bụ EPDM kwadoro mmiri ọñụñụ.