Quick Definition
What is a Single-Use Tank Liner?: A single-use tank liner is a disposable polymeric bag inserted into an existing stainless steel or glass-lined tank, replacing the tank interior as the product-contact surface. When the process is complete, the liner is removed and discarded — eliminating CIP (clean-in-place) and SIP (steam-in-place) between batches.
When does a tank liner make economic sense?
Tank liners are most cost-effective when: an existing stainless steel tank requires frequent product changeovers; CIP validation is expensive for a specific product/tank combination; the facility manufactures multiple products that cannot share cleaning validation; or when transitioning from multi-product to single-use manufacturing while converting existing assets.
CIP/SIP elimination — the regulatory benefit
In GMP manufacturing, every cleaning procedure must be validated — demonstrating removal of defined residues below acceptance limits. Tank liner replacement eliminates this for the product-contact surface entirely, replacing validated cleaning with a single-use approach. This reduces cleaning validation burden, eliminates cleaning agent residue risk, and enables faster batch changeover.
Key Facts
- Inserted into existing stainless steel tanks — converts a reusable tank to single-use without capital investment
- Eliminates CIP/SIP: no cleaning validation required for product contact surface between batches
- Eliminates cross-contamination risk between different products or batches in the same tank
- Custom-sized to fit existing tank geometry — cylindrical, conical bottom, various diameter-to-height ratios
- Available in SeamlessBio portfolio for tank sizes from 50 L to 5,000 L+
- USP Class VI certified, gamma sterilised, integrity tested
Further Reading
SeamlessBio GmbH · Passau, Germany · info@seamlessbio.de
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