The vacuum pump mechanical seal P-2811 is suitable for 30-WS vacuum pumps and is a frequently replaced spare part in daily maintenance. It has reliable sealing performance, stable long-term operation, small leakage, long maintenance cycle, good vibration resistance, and a wide range of applications.

Operational testing steps for vacuum pump mechanical seal P-2811

1. Open the 1-inch ball valve for 15 seconds to obtain a low vacuum reading.

2. Close the valve and read the instrument. The absolute pressure gauge reading should reach 1-2Torr within 6 seconds. The standard instrument reading should be 29 inches of mercury, reaching 30 inches of mercury within 5 seconds. If the above values are not obtained, there may be issues such as poor lubrication, excessive clearance within the pump, or leakage.

The vacuum pump mechanical seal P-2811 has the following advantages:

1) Reliable sealing, stable long-term operation, and low leakage;

2) The service life can reach 1-2 years or longer in oil-water media, and more than half a year in chemical media;

3) Low friction power consumption, with friction power only 10% to 50% of that of soft packing seals;

4) There is basically no wear on the shaft or shaft sleeve;

5) Long maintenance cycle, automatic compensation after end face wear, generally not requiring regular maintenance;

6) Good vibration resistance, insensitive to the vibration and deviation of the shaft, as well as the deviation of the shaft from the sealing chamber;

7) Widely applicable, it can be used for sealing in low temperature, high temperature, vacuum, high pressure, different rotational speeds, various corrosive media, and media containing abrasive particles.

The vacuum pump mechanical seal P-2811 has been used in 30-WS vacuum pumps for about 40 years, with advantages such as reliability, long-term stable operation, and low friction power consumption. Proper operation and regular maintenance can extend its service life and ensure the normal operation of the system. In the industrial field, mechanical seal P-2811 is a reliable sealing solution.