Rotary shell pump is a new type of small flow high pressure pump which is very unique in structure and working principle. It is an extremely low ratio rotary pump. China's rubber industry introduced two rotary shell pumps from the United States for the first time ten years ago for the transportation of raw oil in the carbon black production line and is obviously superior to other types of pumps in terms of smooth operation and service life. At present, this pump is rarely used in other industries, mainly due to poor understanding of the characteristics and structure of the pump by the manufacturer and the user. The main features of the rotary shell pump are: (1) suitable for small flow, high head delivery, the general flow of dozens of parties per hour, only a few small, lift hundreds of meters, some as high as thousands of meters; 2) simple structure, small size, thus a small amount of maintenance, low maintenance costs, long service life; (3) sealing reliability, only the low pressure in the shell pump mechanical seal at the entrance, no seal at the spindle end to solve High-pressure pump ubiquitous high-pressure sealing problems; (4) the flow characteristics of the smooth curve, and no pulse output of the liquid, it is suitable for fluid delivery requirements of a more stable production positions; (5) relatively high efficiency, Centrifugal pumps, low efficiency due to the impeller disc friction loss increased significantly, while the disc pump shell disc friction does not exist.
Flexible lift gate is a flexible soft curtain door, inside and outside the two curtains, curtains used between the aluminum beams connected with a vertically movable rail, the roof beams have levels not in the same straight line and hangar large plants in particular be applicable. Flexible lift door installation does not take up interior space in the hole inside. When the fiest move to open the door, and finally superimposed over the hole. Off event curtain rail first and then fall down until it is completely closed.
Flexible Gate,Flexible Pvc Aircraft Folding Up Door,Steel Structure Fabric Flexiile Door,Exterior Automatic Flexible Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfhighspeeddoor.com