TRP SERIES ROTARY VANE VACUUM PUMP DESIGN FEATURE 1. Excellent ultimate vacuum and pumping speed. 2. Convenient oil level checking and changing. 3. Convenient gas ballast valve control. 4. Low noise and vibration. Simplifide repairs and maintenance. 5. Occupying strong and constant pressure oil circulating system to protect the pump. 6. Occupying international standard clamp and flange at inlet and outlet port. 7. Improved anti-suckback to protect the vacuum system in the event of sudden stop.

YQSP OIL-FREE SCROLL VACUUM PUMP CONSTRUCTION AND OPERATING PRINCIPLE YQSP oil free scroll vacuum pump is constructed with fixed scrolls, orbiting scroll, main shaft, cooling fans, crank shaft kits, and bracket. Its’ operating principle is based on two spiral cylinders, one offset and orbiting against the other with an offset of 180°. Thus several crescent-shaped pockets of differing sizes are created. By means of an eccentric drive, the orbiting scroll is made to orbit about the fixed scroll, reducing the volume of the pockets and compressing gases from the outside towards the inside thereby pumping the gases from vacuum chamber.

ZJP ROOTS VACUUM PUMP APPLICATIONS & FEATURES Low noise Overflow valve for preventing thermal overloading High pumping speed in the wide pressure range Gas protecting device for evacuating high-boilling working media