substitution request - Alliance Construction Solutions

A. Provide factory-tested pumps, thoroughly cleaned and painted with one coat of machinery
enamel prior to shipment.
B. Provide all pumps of same type by the same manufacturer.
C. Casings shall be fabricated in such a manner as to allow removal and replacement of
impellers without necessity of disconnecting piping.
D. Motors shall conform to NEMA Standard MG-1, general purpose, continuous duty, Design
B (except Design C where required for high starting torque); single, multiple, or variable
speed, with type of enclosure and electrical characteristics as indicated, and greaselubricated
ball bearings.
1. Motors shall be selected that are non-overloading within the full range of the
pump performance curve.
2. Motors shall be selected for continuous duty at site altitude; Class F insulation shall
be provided where required to meet ambient/altitude operating requirements at
1.0 service factor.
3. Built-in overload protection shall be provided.
E. All pump motors 1 HP or larger shall be of the high-efficiency type.
F. Vibration: Pumps shall be factory balanced such that vibration amplitude, velocity, and
acceleration values do not exceed ISO General Machinery Vibration Chart “Very Good”
curves or manufacturer’s standards, whichever is more stringent.
2.02 MANUFACTURERS:
A. Manufacturer: Subject to compliance with requirements, provide products by one of the
following in each category:
1. In-Line Circulation Pumps:
Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
a. Bell & Gossett ITT, Fluid Handling Div.
b. Grundfos Pumps Corp.
c. Taco, Inc.
d. Peerless Pumps
e. Armstrong Pumps, Inc.
f. Dunham-Bush, Inc.
2. Water Pressure Booster Systems:
a. Grundfos Pumps Corp.
b. Bell & Gossett ITT, Fluid Handling Div.
c. Syncroflo, Inc.
d. Paco Pumps
e. Armstrong Pumps, Inc.
f. PSF, Div. of Messco, Inc.
g. Peerless Pumps
3. Pedestal Type Sump Pumps:
a. Armstrong Pumps, Inc.
221123 - 3 PLUMBING PUMPS