| 摘要 |
The two, three or four way liquid or gas valve body (2) which contains a movable vane (9) has its fluid passage sections defined by one or more removable parts (1,3,4). These parts are independent of the main body and placed in the fluid flow paths. The body can be moulded from aluminium, steel, glass or plastics and has pipe connections (6). These removable parts have different mechanical and geometric shapes which alter the profile of the fluid passage section when the movable vane varies its opening angle. A plate closing the valve is sealed onto the body by a joint The incidence of the angle of rotation of the movable vane varies the proportion of return and supply circuit flows. |
