| 摘要 |
<p>The valve has a throttle body (2). Max. flow ratio is adjusted by variations in position of an adjusting seat (4). The valve is a 3-way valve with two cross paths (A,AB) and one longitudinal path (B) relative to the adjusting direction of the throttle. The throttle closes the cross paths when in one end position, and the other path when in the second end position. The adjusting seat is formed by a sleeve (3) with seal ring (7), fitted into a thread (5) within the longitudinal path. The throttle has trapeze-shaped webs (2a) projecting into the sleeve. The lower end position of the throttle is automatically detected by an electric drive, due to the required high torque.</p> |
