Rotary vane vacuum pump oil change operation

Rotary vane pumps are used in processes where the vacuum value does not exceed 10-3 mbar. The VACUUBRAND rotary vane pump, despite its small size, has excellent performance and is complemented by a range of VACUUBRAND accessories. It has an innovative lubrication system with a built-in oil chamber and large oil capacity. This can extend the oil change interval and maintenance time while protecting the pump when it starts to run. The effective gas ballast performance can tolerate more water vapor and solvent vapor due to its high flow gas ball design. The volume flow of the VACUUBRAND rotary vane pump is determined according to the pumping speed at atmospheric pressure, as defined by PNEUROP®. From the standpoint of process efficiency, the large volume flow of the VACUUBRAND pump and its ability to maintain stable pumping speeds over a wide range of pressures are the key factors that ensure your satisfaction in practical applications. After the pump is turned off, the pump body is vacuum-sealed to ensure that there is no accidental deflation or return of oil in your application environment. However, how to change the oil when the rotary vane vacuum pump is used, please refer to the following steps:
(1) Remove the rotary vane vacuum pump from the vacuum system, raise the end of the chassis motor, open the oil drain plug, turn the vacuum pump and hold the exhaust port so that all the oil in the cavity is discharged from the drain port, and then proceed from At the air port, add 100-500ml of new oil and rotate it for 5-10 rotations. Clean the inside and operate 3-5 times. After the special oil is drained, install the oil drain plug and put the pump flat. New oil is added to the air inlet and the filler hole, and the oil change is completed.
(2) When changing the oil, it is not advisable to start the motor for a long time so as to prevent the exhaust valve piece from jumping violently and fatigue.
(3) It is forbidden to use non-demolition cleaning of the pump with kerosene, gasoline and alcohol.
Note: Rotary vane vacuum pump oil change the best oil temperature after the increase.

Disperse Dyes Printing Thickener


A brief introduction to the additives:
Disperse dye Printing Thickener as the main additive in the chemical printing industry, because of its excellent thickening, has already appeared in people's field of vision early, its true face is a rheological additive, can be no exaggeration It is said that it only needs to add a small amount of thickener to make it play a big role. Is its advantage only reflected in this amount? No, let me introduce you to the specific advantages of disperse dye printing thickeners.
Advantages of additives:
1. After the consistency of the raw liquid product is increased, the raw liquid is better penetrated into the textile and uniformly sizing.
2. Provide good rheological properties for dyes or pigments, so that they are evenly distributed during printing without splashing and sagging.
3. Better penetration of the dye into the textile, combined with the fibers to form a well-defined, well-defined textile print.
4. The consistency is increased, so that the dye in the printing is fixed, and the reaction product and the residue are more conveniently and easily washed away.
Auxiliary application system:
Disperse dye printing thickeners are widely used in the thickening of textile printing and dyeing, coatings, printing and dyeing, sanding cloth, cotton cloth, chemical fiber cloth and other systems.


Disperse Dyes Printing Thickener,Water-based Paint Thickener

Guangzhou Quanxu Technology Co Ltd , https://www.silicamattingagent.com