Vacuum pump can be described as a common and commonly used in many pump products a pump type, which is in a closed space, through mechanical, physical, chemical or physical and chemical methods to improve, Equipment to produce and maintain the vacuum has a wide range of applications in the metallurgical, chemical, food, electronic coating and other industries, then it and the ordinary pump What is the difference? Vacuum pump (network with the map) The most important feature of the vacuum pump is the formation of a vacuum, which can be seen from its name, which is impossible for ordinary pumps, which is the most important difference between the two. Vacuum pump is by a rotating wheel, rotating in the chamber, the chamber filled with fluid, the remaining cavity volume cyclical changes in the volume of the fluid under the action of periodic changes on the suction pipe gas Exhaled and inhaled. The most common vacuum pumps are dry screw vacuum pumps, water ring pumps, reciprocating pumps, slide valve pumps, rotary vane pumps, Roots pumps and diffusion pumps. The following is to say ordinary pump. Centrifugal force, the centrifugal pump will be thrown out of the fluid at the same time the formation of negative pressure, and then the other fluid in its suction will continue to enter the pump body, pump impeller into the kinetic energy and potential energy driven by consumption of motor Electricity to complete. Vacuum pumps and ordinary pumps have their own characteristics, each with its own usefulness, I believe in science and technology continue to promote, they will and development of the better. (Editor: LLX QQ:) Recommended reading: 2017 Exhibition Information 2016 Yiwu Fair
Self-Recovery Rapid Door
High Speed self-Recovery Rapid doors are the technological evolution of old, PVC high speed doors or heavy folding doors, now obsolete and not suited to today's industrial needs.
High-quality panels, the resistive safety edge fitted to the bottom edge of the door, photocells and barriers make this product both safe and durable, being totally self-repairing, thanks to its special [Anti Crash System".
This door designed with a perimeter structure in galvanized or stainless steel, which is ideal for sliding panels. The door panel rides effortlessly within a track, thanks to the special profile and hinge designed by us, requiring low maintenance. The panel is rolled up on a roller placed within the upper crossbeam.
The door can be equipped with a counterweight or ups batteries, to fully open the door in case of power failure, and can also be equipped with large transparent sections to create a brighter and safer working environment.
Self-Repairing Door Curtain made of reinforced PVC, with flexible weighted soft bottom edge.
The edge of curtain has continuous injection molded teeth that then move up and down in a self-lubricating polyethylene track attached to structural galvanized side frames.
Self-Recovery Rapid Door,Self Recovery PVC Rapid Door,Self Recovery Rapid Rolling Door,Self Healing Roll Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfrollershutterdoor.com