Comhlaí Féileacán Miotal go Miotal, Éiccentric triple, Déthreo, Seafta Breisithe, Gnéithe, Praghas

The sealing ring of the metal to metal seated butterfly valve is completely made of metal material, and there is no interlayer made of non-metallic materials such as PTFE, graphite, rubber asbestos board, etc. The valve will not be washed by high-speed fluid when the valve is fully opened or partially opened. The sealing ring is damaged, which greatly improves the service life of the valve. 

Ní hamháin gur féidir é a dhúnadh go hiontaofa sa bhrú in aghaidh an tsrutha, ach freisin sa bhrú droim ar ais nó go bhfuil an brú droim ar ais i bhfad níos mó ná an brú in aghaidh an tsrutha.