OTI designs and manufactures Spherical Shell Membrane and Structural Truss digester covers. The Spherical Shell Membrane covers are the recognized preferred cover design for steel or stainless-steel digester covers. OTI supplies fixed, floating, buoyant and gasholder covers from 20′ to 125′ diameter.
OTI has perfected Spherical Shell Membrane design with its EZup features that simplify cover installation. The result is a higher quality digester cover that complies with all structural and operational design conditions to extend the useful service life of the cover. It is easier to install, paint, maintain, and is less costly to install. Some of the EZup features that help to increase cover life and decrease installed costs are: