UN811 diaphragm pumps are single head, dry running devices used in a wide range of laboratory applications. They transfer, compress and pump down without contamination. The heart of these very compact pumps is a KNF structured diaphragm.

• Oil-free
• Low maintenance
• Small footprint; requires little bench space
• Available as stand alone or with vacuum gauge/regulator assembly
• Available with a dampened analog vacuum gauge and a fine regulating valve to provide simple adjustment of system vacuum levels
• For bottletop filtration, disposable filtration assemblies with collection flasks >500 ml; glass filtration assemblies with flasks <1 L; and to replace one aspirator

No metal or coated-metal parts within the Ryton™ pumpheads; prevents pitting and corroding. Structured PTFE diaphragms supply consisent, reliable vacuum levels; not dependent on water pressure or temperature. Multiport Viton™ valves exhibit high tolerance to occasional liquid condensate, so a trap is not required except in those applications where large volumes of liquid are anticipated.