When pumping a hazardous material, what kind of seal is typically used?

The use of a chemical resistant mechanical seal is essential when pumping hazardous materials due to its ability to withstand aggressive chemicals and high pressures while preventing leaks. These seals are specifically designed with materials that can resist corrosion, abrasion, and chemical reactions, ensuring that the hazardous substances do not escape into the environment, which could pose serious safety risks.

Chemical resistant mechanical seals often utilize specialized elastomers and materials such as Teflon or ceramic, which are not only durable but also provide the necessary flexibility to adapt to different pumping conditions. This robustness is crucial in handling both volatile and toxic substances safely.

While other seal types, such as standard mechanical seals, gaskets, and rubber O-ring seals, may serve general sealing purposes, they often lack the specific chemical resistance required for hazardous applications. Their inability to effectively manage the conditions presented by hazardous materials can lead to seal failure, potential leaks, and safety hazards. Therefore, the chemical resistant mechanical seal is the preferred choice in these situations.