The Chinese government has spent $14.84 billion on green building projects as it focuses more on reducing building pollution.
It also spent $787 million on green building materials for specially de...
Vacuum pumps
Common faults, troubleshooting and repair methods
Problem 1:
Vacuum pump failed to start
Problem 2:
The vacuum pump does not reach the ultimate pressure
Problem 3:
Pumping speed ...
1. What is a pump?
A: A pump is a machine that converts the mechanical energy of the prime mover into energy for pumping liquids.
2. What is power?
A: The amount of work done per unit of time is ca...
This series of Roots-type vacuum pumps cannot be used alone. It needs to be used in series with the pre-stage vacuum pump to increase the pumping rate of the pre-stage vacuum pump when the pressure...
A vacuum pump is a device that generates, improves and maintains a vacuum in an enclosed space by various methods. A vacuum pump can be defined as a device or equipment that uses mechanical, physic...
A viewport is a window component mounted on the wall of a vacuum chamber through which various light and electromagnetic waves, such as ultraviolet, visible and infrared, can be transmitted. In vac...