Specifications - Lord and Son Construction, Inc.

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*2.8.2 Phenolic Resin Coatings for Heater Tubes
The phenolic resin coating system shall be applied at either the coil or
coating manufacturer's factory in accordance with manufacturer's standard
proven production process. The coating system shall be a product
specifically intended for use on the material the water heating tubes/coils
are made of and shall be acceptable for use in potable water systems. The
coating system shall be capable of withstanding temperatures up to 400
degrees F dry bulb; and meet the requirements of 21 CFR 175.
The entire exterior surface of each coil shall be coated with phenolic resin
coating system.
2.8.2.1 Standard Product
Provide a phenolic resin coating system that is a standard products of a
manufacturer regularly engaged in the manufacturing of products that are of
a similar material, design and workmanship.
Standard products are defined as components and equipment that have been in
satisfactory commercial or industrial use in similar applications of
similar size for at least two years before bid opening.
Prior to this two year period, these standard products were sold on the
commercial market using advertisements in manufacturers' catalogs or
brochures. These manufacturers' catalogs, or brochures shall have been
copyrighted documents or be identified with a manufacturer's document
number.
2.9 PUMPS
2.9.1 Circulating Pumps
Domestic hot water circulating pumps shall be electrically driven, singlestage,
centrifugal, with mechanical seals, suitable for the intended
service. Pump and motor shall be close-coupled with an overhung impeller,
or supported by the piping on which it is installed. The shaft shall be
one-piece, heat-treated, corrosion-resisting steel with impeller and smoothsurfaced
housing of bronze.
Motor shall be totally enclosed, fan-cooled and shall have sufficient
horsepower for the service required. Each pump motor shall be equipped with
an across-the-line magnetic controller in a NEMA 250, Type 1 enclosure with
"START-STOP" switch in cover.
2.9.2 Flexible Connectors
Flexible connectors shall be provided at the suction and discharge of each
pump that is 1 hp or larger. Connectors shall be constructed of neoprene,
rubber, or braided bronze, with Class 150 standard flanges. Flexible
connectors shall be line size and suitable for the pressure and temperature
of the intended service.
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