| 摘要 |
This invention is characterised in that a safety valve is introduced into a known tap valve without modifying the structure or constituent members thereof. The safety valve comprises a seal (1) with a concentric conical opening having its conical tip directed in the direction of the water flow, a valve cone (2) introduced into said conical opening, and an adjustment bolt (3) screwed on the threaded rod of the valve cone. |
