Poly Pro Tank Temperature at 150°F (65.6°C)

BEI’s Poly Pro polypropylene material guidance extends up to approximately 200°F (93.3°C). At 150°F (65.6°C), that figure is an initial screening point, not automatic approval for every storage tank.

What 150°F (65.6°C) means for Polypropylene

At 150°F, continuous exposure matters more than a brief temperature spike. Confirm the liquid’s steady-state temperature and any cleaning or process excursions. Higher temperatures can change the strength and long-term behavior of thermoplastics. The tank’s 1.9 specific-gravity rating should not be assumed at elevated temperature unless it is confirmed for that model.

What to confirm before specifying a tank

Send BEI the chemical and concentration, continuous and peak liquid temperature, required capacity and fill level, specific gravity, operating cycles, fittings and piping loads, and installation conditions. Chemical compatibility must be checked at the actual temperature. A short-lived temperature excursion and continuous storage at the same temperature are different design cases.

Some polypropylene process tanks are sold with maximum temperature ratings near 200°F, but those product ratings vary by design. The BEI Poly Pro tank page is the starting point for a model-specific discussion.

Use this page as a screening guide, not a final compatibility or engineering approval. Review BEI Polypropylene tanks or request an application review.