Concept of swirl pump

Vortex pump is used to suck water and physical and chemical properties similar to the water used in the liquid, the use of liquid temperature shall not exceed 60 ℃, commonly used in boiler feed water, in shipbuilding, textile, chemical, metallurgy, machinery manufacturing, aquaculture, Fixed fire prevention regulator, thermal exchange unit, remote irrigation and other agricultural departments have a wide range of applications.

Roller Shutter Door

Roller shutter door , also known as "shutter door", lots of panel pieces connected together, fixed in the guide rail , take above reel as the center of rotation.


Roller shutter door is used for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or residential.Electric roller shutter door, especially for large openings, inconvenient to install the ground door , quick opening effect. Such as for the garage door, shopping mall fire shutter door.


Opening methods: Handing driving mode

Rope driving mode

Remote control driving mode

Electric switch driving mode

Roller Shutter Door,Galvanized Roller Shutter Door,Aluminum Roller Shutter Door,Transparent Roller Shutter Door

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.pvchighspeeddoor.com