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4 products found
Ben Co., Ltd.
430+ people viewing
Last viewed: 8 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.
480+ people viewing
Last viewed: 7 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.
370+ people viewing
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.
480+ people viewing
Last viewed: 19 hours ago
Ventilation valves are installed in drainage vertical pipes, drainage side pipes, etc., and when negative pressure is generated, the valve opens, s...