Chemical pump uses: Chemical pumps are widely used in chemical, petroleum, metallurgy, light industry, synthetic fiber, environmental protection, food, medicine and other departments, to improve product quality, reduce run, run, drip, leak, prevent pollution, improve the environment, play Great effect. How does it achieve high seal? This question can be explained from the following two aspects.
Sealed form
For the static seal, usually only two forms of seals and seals, and O-ring seal is the most widely used; for dynamic seals, chemical pumps rarely use packing seal, the mechanical seal-based, mechanical seal and A single-ended and double-ended, balanced and unbalanced, balanced type for high pressure medium seal (usually refers to the pressure greater than 1.0MPa), double-end machine seal is mainly used for high temperature, easy crystallization, viscosity, containing particles As well as the toxic volatile medium, double-ended machine seal should be injected into the sealed chamber isolation fluid, the pressure is generally higher than the medium pressure 0.07 ~ 0.1MPa.
2. Sealing material
Chemical pump static sealing materials generally use fluorine rubber, special circumstances only use PTFE material; mechanical seal ring static material configuration is more critical, not cemented carbide is the best on the cemented carbide, the price is high on the one hand, two No hardness difference is not reasonable, it is best to distinguish between the characteristics of the media treated.