| 摘要 |
PURPOSE:To execute exactly, safely and easily a water-drainage test by one worker, by placing a water-drainage testing apparatus formed by providing contiguously a valve and measuring instruments such as a primary-side and a secondary-side pressure gauges, etc. on a nozzle, on a fixed base. CONSTITUTION:A secondary side pressure gauge 8 is engaged in the vicinity of the tip of a nozzle 4, and one end of a valve 14 is concatenated to the rear end. Also, a hose 24 is concatenated through a primary side pressure gauge 6 to the other end of the valve 14, by which a water-drainage testing apparatus 2 is assembled and formed. Subsequently, the water-drainage testing apparatus 2 whose weight becomes large is placed on a fixed base 32. Accordingly, works such as opening and closing of the valve 14, measurement of pressure, etc. can be performed by one person. |
