Sterile Sampling Valves for Pharma & Biotech

Our aseptic sampling valve offering includes:

• Ingold-compatible sampling valves for bioreactor and fermenter integration, a standard configuration in cell culture and fermentation-based biotech processes
• W-series Keofitt valves (W9, W15, W25) for sterile liquid and gas sampling across a range of port sizes and process pressures
• Manual and pneumatic actuation options, selected based on line automation and operator access
• Membrane materials in EPDM, silicone, and PTFE, matched to product chemistry and sterilization method (autoclave, steam-in-place, or chemical)

Aseptic Sampling Valve Applications

Pharmaceutical and biotech manufacturers rely on these valves at the exact points where a batch could go wrong: pulling a sample from a bioreactor mid-run, checking fermentation progress without opening the line, or confirming product quality before it clears release testing. 

Animal health producers use the same valves for equally strict dosage and quality checks in their own production lines. Engineering firms and OEMs building process skids or bioreactor systems often spec these valves directly into new equipment during design, and can pull technical data sheets and specs from our resources library to confirm fit before purchase. 

Many of these same builds also call for control valves to manage the flow and pressure feeding into a sampling point, so the two product lines frequently get specified together.

Aegir Specialty Valves stocks these valves and their replacement parts at our Menomonee Falls, Wisconsin, distribution center. Our team can specify a configuration based on your process conditions, sterilization protocol, and port requirements, then get it shipped fast. Items outside our stock still move quickly through our direct line to Keofitt's manufacturing.

What is an aseptic sampling valve? 

An aseptic sampling valve is a valve that pulls a sample from a sealed process line without exposing the product or the line to outside contamination. The sample path stays closed until the moment of collection.

What’s the difference between an aseptic and a sanitary sampling valve? 

Aseptic valves are built for full sterility in pharma and biotech processes, where any contamination risk fails a batch. Sanitary valves meet strict cleanliness standards for food and beverage but don't require the same sterilization level.

How often does the valve membrane need to be replaced? 

Replacement frequency depends on sterilization method and sample volume, but most facilities swap membranes on a set maintenance schedule rather than waiting for failure. Aegir stocks replacement membranes in EPDM, silicone, and PTFE.

Can these valves handle steam sterilization and autoclaving? 

Yes, Keofitt aseptic sampling valves are built to withstand both steam-in-place sterilization and autoclaving, depending on the membrane material selected. Your process conditions determine which membrane fits best.