Lab Vacuum Pumps

Lab vacuum pumps for chemistry need more than just the right vacuum level – they must also survive aggressive vapours. Modern lab vacuum pumps use chemical-resistant materials of construction such as PTFE-coated diaphragm chambers, PTFE pump heads, FKM valves and 316 stainless steel valve plates to protect internal parts from acids, bases and organic solvents. Rocker chemical-resistant vacuum pumps (C-series and Chemker series) are good examples: key wetted parts are PTFE or PTFE-coated, giving strong resistance to corrosive gases while remaining oil-free and low-maintenance.

For harsher chemistry, full PTFE-wetted parts or fluoropolymer-lined pump heads and internal passages help handle strong acids, alkalis and oxidising vapours, while sealing and housings are designed to isolate the drive from the gas path for long service life. Brands such as Rocker, VACUUBRAND and other leading manufacturers offer chemistry diaphragm vacuum pumps engineered specifically for rotary evaporators, filtration, vacuum ovens and concentrators in demanding chemical environments.

When selecting a lab vacuum pump, always match the pump’s materials of construction and internal lining to your chemicals as carefully as you match the vacuum specification. Kamadi Pakistan supplies lab vacuum pumps in Pakistan with PTFE-coated and fully PTFE chemical-resistant designs from Rocker and other international brands, helping labs choose safe, durable vacuum pumps for corrosive chemical applications.