When backflow isn’t an option, we rely on true leak-tightness.
Check valves are simple and robust, but not completely leak-tight. This is often insufficient, especially for gaseous media, low system pressure, or GMP-critical applications.
Our check valves are used wherever backflow must be avoided at all costs.
Your advantages:
– Protection against backflow and cross-contamination
– Seals even with sensitive media
– Suitable for GMP environments
– Can be combined with precise pressure regulators
– Reliable operation, low maintenance, and durable
Whether in pharmaceutical, biotech, chemical, or laboratory technology:
Where cleanliness and safety count, true leak-tightness is essential.

Tel: +41 61 645 98 00
info@zimmerliag.com