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L.J. Star Sight Glass Specially Designed for Biogas Digester Tanks

Post Time:Sep 15,2009Classify:Company NewsView:403

L.J. Star has introduced a new sight glass specially designed for installation
in the digester tanks used in biogas production. The RD300 sight window has an
innovative expanding gasket that conforms to irregularities in the cement walls
and ports used in digester tank construction, creating a gas-tight seal.

A growing interest in alternative energy is fueling the construction of biogas
facilities, which typically have large concrete digester tanks. Sight glasses
are required at the tank work platforms where operators set mixing devices at
optimum positions. A gas-tight seal is required to meet safety standards.

The RD300 sight glass has a tubular rubber gasket around its perimeter,
sandwiched between high grade steel rings. As the mounting screws are tightened,
the inner and outer rings draw together and force the gasket to expand. In
addition, the sight glass includes three angled mounting brackets that are long
enough to accommodate the depth of the container wall.

The RD300 sight window is available with several options that are important for
biogas applications. The unit may be ordered with an optional motorized wiper, a
manually operated wiper, and a washer assembly. By turning a valve, operators
can direct water spray on the interior of the glass. The spray tube is made of
high quality stainless steel. Alternatively, the spray tube can be used to take
fermentation gas from the container.

An optional Lumiglas light is designed to hinge mount on the metal ring,
providing directionally adjustable illumination. An optional Lumiglas VISULEX
video camera may be mounted that provides remote observation of processes. Both
the light and camera carry Cenelec IIc explosion proof ratings (Zones 1 & 2).

Sight Glass Specifications

The L.J. Star RD300 sight glass is made of high quality soda-lime glass. All
metal components are made of 316Ti stainless steel (14571). The outside ring
diameter is 295mm and the viewing area diameter is 220mm. It is available 4-6
weeks ARO.

Source: ReutersAuthor: shangyi

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