| 摘要 |
PURPOSE:To measure the lift quantity of a flow rate valve accurately by providing a wiping plate adjacently to a brush for valve lift measurement and sweeping abrasive powder. CONSTITUTION:A fitting plate 35 coupled integrally with a displacement rod 34 equipped with the valve body of the flow rate valve atop moves up and down to measure the lift of the valve through the brush 29 which is provided to the fitting plate 35 and slides on a resistor 38. The fitting plate 35 is provided with the wiping plate 41 adjacently to the brush 29 and abrasive metallic power produced by the sliding of the brush 29 is wiped by the wiping plate 41 and never enters the gap between the brush 29 and resistor 38. Consequently, the lift quantity of the flow rate valve is measured accurately. |
