DESCRIPTIONS
When the pump stops working or power supply is suddenly interrupted, the valve can rely on the force of atmospheric pressure and vacuum valve plate closes automatically closed vacuum system to maintain its vacuum, and the air filled through the orifice valve into the pump chamber in order to avoid contamination of the vacuum pump oil countercurrent system.
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SPECIFICATION
SOLENOID VALVE DIAGRAM
PHYSICAL PICS
Sea Port: Ningbo/Shanghai FOB
DESCRIPTIONS
When the pump stops working or power supply is suddenly interrupted, the valve can rely on the force of atmospheric pressure and vacuum valve plate closes automatically closed vacuum system to maintain its vacuum, and the air filled through the orifice valve into the pump chamber in order to avoid contamination of the vacuum pump oil countercurrent system.
Â
SPECIFICATION
SOLENOID VALVE DIAGRAM
PHYSICAL PICS
Sea Port: Ningbo/Shanghai FOB
In recent years, affected by global climate change, heavy rainfall, rainstorms and floods caused by extreme weather have seriously threatened people's lives and property. Many cities in China have the problems of low design standard of drainage system and insufficient drainage capacity, resulting in serious ground ponding in the flood season. The flood control board is specially designed to prevent rainstorm and ponding. It is quickly assembled, light and safe, and saves storage space.
Removable Flood Barrier,Garage Flood Barrier,Easy Flood Barrier,Water Barrier For Flooding
Eternity International Trading Co., Ltd. , https://www.e-tygroup.com