| 摘要 |
PURPOSE: A pressure control device for a pipe seal test is provided to rapidly and simply perform the seal test of the vertical pipe or underground pipe of the building to be constructed, thereby shortening the work process and finely controlling the minute amount of seal test pressure in a manual manner. CONSTITUTION: A pressure control device for a pipe seal test includes a pressure measuring unit (40), a pressing device (20), and a minute pressure controller (30). The pressure measuring unit is installed in the end portion of the connection line (10) of a pneumatic pipe (1). The pressuring device is branched and installed to the connection line. The minute pressure controller includes a pressure/backpressure member (32) and a minute pressure control button (31). The pressure/backpressure member is formed to have a ball shape. The minute pressure control button is installed on the front portion of the pressure/backpressure member. |
