| 摘要 |
A radiator valve comprises a body in which a cylinder A having a right-angled bore B is rotatably fitted. The cylinder is held in position by nut F and a stem H of the cylinder is rotated by knob K. Knob K has pointers L that show the position of the valve in relation to indicia cast into the valve body. Alternatively the top of the stem H could be formed as a pointer, in which case the knob K would not be required. |
