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4 products found
Ben Co., Ltd.
600+ people viewing
Last viewed: 14 hours ago
The intake/exhaust valve sucks in a large amount of air when the water supply piping becomes negative pressure, eliminates the negative pressure, a...
Ben Co., Ltd.
670+ people viewing
Last viewed: 1 day ago
The intake/exhaust valve sucks in a large amount of air when the water supply piping becomes negative pressure, eliminates the negative pressure, a...
Ben Co., Ltd.
580+ people viewing
Last viewed: 21 hours ago
Ventilation valves are installed in drainage vertical pipes, drainage side pipes, etc., and when negative pressure is generated, the valve opens, s...
Ben Co., Ltd.
710+ people viewing
Last viewed: 16 hours ago
Ventilation valves are installed in drainage vertical pipes, drainage side pipes, etc., and when negative pressure is generated, the valve opens, s...