In recent years, with the rapid development of the long pipeline, hard seal ball valve off the valve as an emergency one, the pace of development is very fast, mainly characterized by the development

Went on one call today and had another query by Facebook about this so I though why not write an article about it. Both persons were very concerned as they saw water dripping from theirs boilers. A

In addition to the above 3 conditions, there are other conditions may also make a cylinder leak, the cylinder of the spring is damaged, not in place due to the result of force, which may result in cus

Principles of valve opening and closing valve parts by medium flow and the forces to open or close the valve to prevent the media called the check back. Check valves are automatic valves, mainly for o

Pre-reaction of epoxy resin to meet the requirements under Art, design pre-reactor temperature control loop. To the reactor using two co-accused of the variable temperature adjustment bamboo to ac