Olympus Technologies, Inc. (OTI) products

Least expensive of all OTI’s digester covers to design, produce and to install. Normally is used where sludge level in the digester does not vary significantly. The cover is supported at the top of the digester tank wall on bearing plates and restrained from upward forces with anchoring saddles. Custom designed for specific project loads such as dead, live, snow, vacuum, seismic, wind load, etc. Ports, manholes, nozzles of virtually any size or shape for digester access, mixer support, instrumentation mounts, etc. are provided as required. Optional tank wall to cover skirt sealing arrangements are available. Walkways, handrail, platforms, ladders, steps, etc. are available where required.

Normally used where sludge level is variable and/or digester gas is required to be stored under the digester cover.

Normally used when sludge level is variable and no digester gas is required to be stored under the digester cover.

OTI designs and manufactures Truss Covers. These cover designs have been available for more than 70 years.  Truss covers are slowly being replaced with the Spherical Shell Membrane designed covers because the Truss Covers are more expensive to manufacture and install, the truss design is more difficult to comply with the increasingly higher operating pressures design engineers have specified in recent history, they are typically more difficult to maintain, and typically have shorter service life.

Mounted on and supported by concrete, steel or stainless steel digester covers.

Mounted outside the digester tank wall and supported on a concrete foundation.

Mounted on and supported by concrete, steel or stainless steel digester covers.

To prevent fouling the viewing glass is isolated from the digester contents.

Fast and easy to open and close the EZLift Lid for access into the digester.

Used to decant “clear” liquid from the upper levels of the digester tank. Standard mechanical hand lever for adjustment of draw off level.