The NL pneumatic screw pump appeared as the upgrading products, which assimilates the latest research results.And it is more economical and more practical.The special surface complex technology is applied to the wearable treatment for helical blade, which can largely increase the service life 3 times than the traditional welding methods.The pump is characterized with ant-pressure, long service life of the helical blade, good sealing properties, low power consumption etc.

Conveying capacity:14-90 m3/h