| 摘要 |
FIELD: fire - fighting equipment. SUBSTANCE: the offered valve includes rod with axial throttle located so that pressure drop across the throttle at working pressure is large to install the rod to the state of transfer from the first position closing direct communication from inlet of the valve to its outlet, towards the second position to open direct communication from inlet to outlet. EFFECT: reliable and simple design of valve for fire - fighting unit operating on high driving pressure. |
