The Pressuretrol L91 series Controllers provide modulating pressure operating control for the regulation of liquid or air and other non-corrosive gases.

The selection to the left provides Model numbers and available pressure ranges. The attached pdf lists full specifications and selection options to assist ordering requirements. Contact Teltherm if assistance is required.

Pressuretrol® Controllers features include:
Modulating, available in various ranges
Use with steam, air, non combustible gases, or other fluids non-corrosive to the brass or phos-bronze (300 psi models) bellows.
Do NOT use with combustible mediums or any medium chemically harmful to phos-bronze bellows (10-300 psi models) or brass bellows (all other pressure range models).