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READ AND **REMOVE THIS PAGE** BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

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[DIVISION 15: MECHANICAL]{.underline}

SECTION 15160 ‑ PUMPS

USE: Furnishing and installing centrifugal pumping equipment for water
service in general building and pipeline applications.

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[\_\_\_\_\_\] provide for information
to be inserted, as appropriate, to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface**,
and *italics*, within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately.)

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED.** Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name of the Project (upper and lower
case)**. Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specification that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST
110, or call (303) 987-6868.

**DRAWING DATA REQUIRED:**

**REQUIRED SPEC MODIFICATIONS:**

[GENERAL NOTES]{.underline}

A. Whenever entire articles, paragraphs or subparagraphs are not
applicable, the articles, paragraphs or subparagraphs should be deleted;
when necessary, reletter or renumber articles, paragraphs or
subparagraphs.

B. THIS GUIDE IS NOT INTENDED AS A SUBSTITUTE FOR READING THE ENTIRE
SECTION.

[TECHNICAL NOTES]{.underline}

A. 1.1A: Select applicable words.

B 1.1B: Select or add applicable specification sections. Do not list
specification sections from Division 15.

C. 1.2A: Select applicable specification section.

D. 1.2B: Insert number of copies of the manufacturer\'s descriptive data
required. Normally 5 copies are required. Distribution after review is
normally 1 copy to the CO, 3 copies to the Contractor, and 1 copy to the
project file.

E. 1.2C: Insert number of copies of the manufacturer\'s installation
instructions required. Normally 5 copies are required. Distribution
after review is normally 1 copy to the CO, 3 copies to the Contractor,
and 1 copy to the project file.

F. 1.2D: Insert number of copies of the manufacturer\'s operating and
maintenance instruction required. Normally 5 copies are required.
Distribution after review is normally 1 copy to the CO, 3 copies to the
Contractor, and 1 copy to the project file.

G. 1.2E: Insert number of copies of shop drawings required. Normally 5
copies are required. Distribution after review is normally 1 copy to the
CO, 3 copies to the Contractor, and 1 copy to the project file.

H. 1.2F: Insert number of copies of performance data required. Normally
5 copies are required. Distribution after review is normally 1 copy to
the CO, 3 copies to the Contractor, and 1 copy to the project file.

I. 2.1A11: Select and insert applicable information.

J. 2.1A12: Select and insert applicable information.

K. 2.1A16: Select when applicable.

L. 3.1C: Select when applicable.

M. 3.1D: Select when applicable.

N. 3.1E: Select applicable words.

O. 3.1G: Select when applicable.

P. 4.1 and 4.2: When a \"lump sum\" Contract is used, delete the title
PART 4: MEASUREMENT AND PAYMENT, and both articles from this section.
Measurement and payment will be addressed in Part 4 of Section 01009
-General Information and Requirements or Section 01010 - Summary of
Work.

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes: 12/01

Metric:

Technical Update: 01/94

SECTION 15160

PUMPS

[PART 1: GENERAL]{.underline}

1.1 SUMMARY:

A. Section Includes: \[Furnishing\] \[and\] \[Installing\] centrifugal
pumping equipment for water service.

1.2 SUBMITTALS:

A. General: Submittals shall be according to \[Section 01009 - General
Information and Requirements.\] \[Section 01300 - Submittals.\]

B. Manufacturer\'s Literature: Submit \[[ ]{.underline}\] copies of the
manufacturer\'s descriptive data for the pumps to be used on this
project.

C. Installation Instructions: Submit \[[ ]{.underline}\] copies of the
manufacturer\'s installation instructions for the pumps to be used on
this project.

D. Operating and Maintenance Instructions: Submit \[[ ]{.underline}\]
copies of the manufacturer\'s operating and maintenance instructions for
the pumps to be used on this project.

E. Shop Drawings: Submit \[\_\_\_\_\] copies of shop drawings for all
the major assemblies and major components associated with the pumps to
be used on this project. \[Shop drawings shall show all wiring and
controls. \[A bill of materials shall be furnished with the shop
drawings.\] Drawings shall be \[same\] \[larger\] scale as the full size
Contract drawings.

F. Performance Data: Submit \[[ ]{.underline}\] copies of certified
curves showing the performance characteristics of the pumps to be used
on this project. \[Provide Net Positive Suction Head (NPSH) curve.\]

1.3 WARRANTY:

A. Requirements: Furnish a written warranty from the manufacturer
covering the pumps according to Section 01700 - Contract Closeout. The
warranty period shall extend for a minimum of one year on parts.

[PART 2: PRODUCTS]{.underline}

2.1 MATERIALS:

A. General:

1\. Select pumps so that the ratio of impeller diameter used to maximum
impeller diameter indicated for the casing on the pump curve shall not
exceed 0.85.

2\. Pump construction shall generally be a minimum of 150 psig W.W.P.,
but not less than 150 percent of the actual system pump discharge
pressure, whichever is greater.

3\. Pump bearings shall be ball type, grease lubricated, including
grease fittings or oil lubricated journal type, unless otherwise
specified.

4\. Each pump shall be provided with an electric motor driver. Motor
sizes shown on the drawings have been selected for non‑overloading
conditions for pumps of a particular manufacturer; however, brake
horsepower of pump selected shall not exceed 100 percent of nominal
motor horsepower under any condition of pump load.

5\. Statically and dynamically balance rotating parts.

6\. Construction of pumps to permit complete servicing without breaking
piping or motor connections.

7\. Pump connections shall be flanged, unless otherwise specified.

8\. Heating pumps shall be suitable for handling water at 225 degrees F.

9\. Pumps shall be selected so that the operating point on the pump
curve will lie at or to the left and slightly below the maximum
efficiency point.

10\. Type shall be centrifugal, single stage, direct connected.

11\. Casing shall be \[cast iron.\] \[bronze.\]

12\. Impeller shall be \[bronze\] \[cast iron\] fully enclosed, keyed to
shaft, and dynamically balanced.

13\. Shaft shall be high grade alloy steel with copper, bronze or
stainless steel shaft sleeves.

14\. Drive shall be flexible coupling with coupling guard.

15\. Mechanical seals shall be carbon, rotating against a stationary
ceramic seat.

16\. Baseplate shall be high grade, heat treated cast iron or reinforced
heavy steel with integral drain rim grout base.

[PART 3: EXECUTION]{.underline}

3.1 INSTALLATION:

A. General: Discharge increasers shall be concentric and located at pump
discharge. Suction piping reducers shall be eccentric and located at
pump suction nozzle. Horizontal elbows shall not be used at pump
suction.

B. Pump Installation: Install pumps according to the manufacturer\'s
instructions and as shown on the drawings.

C. Drains: Provide drains for bases and stuffing boxes piped to and
discharging into floor drains.

D. Air Vent and Drain Connections: Provide air cock and drain connection
on horizontal pump casings.

E. Pump Pipeline Accessories: Provide line sized gate valve and strainer
on suction and line sized, soft seated check valve and \[gate\]
\[globe\] valve on discharge.

F. Elbows on Suction Piping and Pipe Support: Decrease from line size,
with long radius reducing elbows or reducers. Support piping adjacent to
pump such that no weight is carried on pump casings. Provide supports
under elbows on pump suction and discharge line sizes 4 inches and over.

G. Alignment and Operational Check: For base mounted pumps, qualified
millwright to check, align, and certify base mounted pumps prior to
startup.

3.02 DEMONSTRATION:

A. Requirements: Upon completion of installation and after circuitry has
been energized, the Contractor shall demonstrate capability and
compliance of system with requirements. Malfunctioning units shall be
corrected and retested by the Contractor to demonstrate compliance with
the specifications.

3.3 TRAINING OF GOVERNMENT EMPLOYEES:

A. Requirements: See Section 01700 - Contract Closeout.

[PART 4: MEASUREMENT AND PAYMENT]{.underline}

4.1 METHOD OF MEASUREMENT:

A. Units: The work described in this section will not be measured for
payment.

4.2 BASIS OF PAYMENT:

A. Payment: No direct payment for the work described under this section
will be made. The Contractor shall include consideration for this item
in the bid price for other items of the Contract.

END OF SECTION