| 摘要 |
PROBLEM TO BE SOLVED: To solve problems that a timer is normally arranged at a place separate from a solenoid valve of a control box, etc., and the timer and the solenoid valve are connected by a connection in the case of a conventional drain trap for controlling discharge of drain produced from compressive air by the timer, but the selection of an installation place of the timer is required to remarkably take pains and the connection between the timer and the solenoid valve becomes a remarkable hindrance in the case of the conventional drain trap. SOLUTION: In a drain trap with timer in which discharge of drain produced from compressive air is controlled by timers 21, 21A, the timers 21, 21A and solenoid valves 10, 10A are integrally constituted by connection means 22, 25A.
|
