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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 15100 ‑ VALVES

USE: Furnishing and installing valves and devices used to throttle,
isolate, and control flow in piping systems.

**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. Unique job requirements may require
specific coverage in the following specification sections:

**DRAWING DATA REQUIRED:** Location and detail drawings as needed.

**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 applicable specification sections. Do not list
specification sections from Division 15.

C. 1.2: Select or add applicable reference.

D. 1.3B: Insert number of copies of the manufacturers literature
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. 1.3C: Insert number of copies of valve schedule 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. 2.1B8: Select applicable words.

G. 2.1B11: Select applicable words.

H. 2.1B16: Select applicable words.

I. 2.1B17: Select applicable words.

J. 3.1H: Select applicable phrase.

K. 3.1I: Select applicable words.

L. 3.1J: Select applicable words.

M. 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 01010
-Summary of Work.

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes: 12/01

Metric:

Technical Update: 01/94

SECTION 15100

VALVES

[PART 1: GENERAL]{.underline}

1.1 SUMMARY:

A. Section Includes: \[Furnishing\] \[and\] \[Installing\] valves and
devices used to throttle, isolate, and control flow in piping systems.

1.2 REFERENCES:

A. American Society for Testing and Materials:

ASTM B 584 REV A-91 Copper Alloy Sand Castings for General Applications

1.3 SUBMITTALS:

A. General: Submittals shall be according to Section 01300 ‑ Submittals.

B. Manufacturers Literature: Submit \[[ ]{.underline}\] copies of the
manufacturer\'s literature for the valves to be used on this project.
Manufacturer\'s literature shall show make, model, location, type, size,
and pressure rating of valves.

C. Schedules: Submit \[[ ]{.underline}\] copies of the valve schedule
used for ordering the valves to be used on this project.

[PART 2: PRODUCTS]{.underline}

2.1 MATERIALS:

A. General:

1\. Valves: Construction, materials, and pressure ratings shall be
selected to suit the system in which installed. Pressure rating and
manufacturer\'s name shall be cast on each valve body. Valves shall be
fully packed with teflon impregnated packing. Valves shall be of one
manufacturer.

2\. Valve Stems: Shall be all bronze, silicon bronze or similar alloy to
prevent dezincification. Alloy shall have minimum tensile strength of
60,000 psi, minimum yield point of 24,000 psi, and meet the requirements
of ASTM B 584.

3\. Valves in welded piping shall be flanged, regardless of size.

4\. Valves in chrome-plated piping shall be chrome-plated finish.

B. VALVE TYPES:

1\. Gate Valves Two Inches and Smaller in Copper Tubing: Shall be all
bronze, solid wedge, rising stem, screwed bonnet, threaded or solder
ends.

2\. Gate Valves Two and One-Half Inches and Larger in Copper Tubing:
Shall be iron body, bronze mounted, solid wedge, outside screw and yoke
(O.S. & Y), bolted bonnet, flanged ends.

3\. Gate Valves Two Inches and Smaller in Steel Piping: Shall be all
bronze, solid wedge, rising stem, screwed bonnet, screwed ends.

4\. Gate Valves Two and One‑Half Inches and Larger in Steel Piping:
Shall be iron body, bronze mounted, solid wedge, O.S. & Y., bolted
bonnet, flanged ends.

5\. Globe and Angle Valves Two Inches and Smaller in Copper Tubing:
Shall be all bronze, screwed bonnet, renewable resilient disk, threaded
or solder ends.

6\. Globe and Angle Valves Two Inches and Smaller in Steel Piping: Shall
be all bronze, screwed bonnet, renewable resilient disk, screwed ends.

7\. Globe and Angle Valves Two and One‑Half Inches and Larger in Copper
Tubing and Steel Piping: Shall be iron body, bronze mounted, renewable
seat and disk, O.S. & Y., bolted bonnet, flanged ends.

8\. Hose Bibbs (Exterior Wall Type): Shall be non‑freeze type with
\[chrome‑plated\] \[polished bronze\] \[wall plate\] \[recessed box\]
hose thread spout, removable key \[with vacuum breaker\].

9\. Hose Bibbs (Exterior Yard Type): Shall be frost‑proof hydrant with
vacuum breaker.

10\. Drain Valves: Shall be gate valve, bronze compression stop with
nipple and cap or hose thread.

11\. Butterfly Valves: Shall be iron body, bronze disc, resilient
replacement liner seat, \[wafer type\] \[lug type\].

12\. Swing Type Check Valves Two Inches and Smaller in Copper Tubing:
Shall be wye type, all bronze, regrindable seat, renewable disk,
threaded or solder ends.

13\. Swing Type Check Valves Two Inches and Smaller in Steel Piping:
Shall be wye type, all bronze, regrindable seat, renewable disk, screwed
ends.

14\. Swing Type Check Valves Two and One‑Half Inches and Larger in
Copper Tubing and Steel Piping: Shall be iron body, bronze mounted,
spring loaded, regrindable seat, renewable disk, bolted bonnet, flanged
ends.

15\. Plug Cocks: Shall be iron body, brass plugs and washers, air
tested, solder or screwed ends; flanged ends shall be iron body and
plug, pressure lubricated type.

16\. Ball Valves: Shall be \[steel\] \[brass\] \[316 stainless steel\]
\[2-way\] \[3-way\] positive machined stops at opened and closed
positions, positive sealing over entire pressure range, one-piece ball
stem and directional handle.

17\. Combination Balancing and Shut‑off Valves: Shall be a calibrated
\[bronze\] \[cast iron with bronze disc\] square head, plug type, with
provisions for connecting a portable differential pressure meter.
Valves, taper type with O-ring seals top and bottom of plug. Meter
connections shall have integral check valves and caps. An integral
pointer shall register degree of valve opening. Valves shall be rated
minimum 125 psig water, oil, and gas (WOG) at 250 degrees F.

18\. Valve Ratings: Valves shall be rated minimum 125 psig working steam
pressure (WSP) and 200 psig for water, oil and gas (WOG).

[PART 3: EXECUTION]{.underline}

3.1 INSTALLATION:

A. Location of Valves: Provide an accessibly located valve where
indicated or required for proper system, specialty and equipment
operation and maintenance. Provide a three valve bypass around all
automatic valves for each flow path.

B. Pump Discharge Valves: Provide full-size combination balancing and
shutoff valves next to the increaser in discharge line from every pump.

C. Valves Required for Each Flow Path: Provide combination balancing and
shut‑off valve in all circulating systems, and at all equipment where
indicated for proportioning flow.

D. Stems: Install valves with stems upright or horizontal, not inverted.

E. Gate Valves: Install gate valves for shut‑off and isolating service,
to isolate equipment, parts of systems or vertical risers.

F. Globe or Angle Valve: Install globe or angle valves for throttling
service and control device or meter by‑pass.

G. Drain Valves: Install gate type drain valves at main shut‑off valves,
low points of piping and apparatus.

H. Check Valves: Shall be \[spring type\] \[spring loaded\] on discharge
of pumps, on discharge of condensate pumps, condenser water and water
booster pumps.

I. Plug Cocks: \[Use plug cocks for gas service.\] \[Use plug cocks in
water systems for throttling service. Use non‑lubricated plug cocks only
when shut‑off or isolating valves are also provided.\]

J. Butterfly Valves: Use butterfly valves \[in heating systems\] \[in
chilled and condenser water systems\] \[in heating, chilled and
condenser water systems\] interchangeably in place of gate and globe
valves.

K. Ball Valves: Use for directional flow and quick-acting applications.

L. Dielectric Union: Provide dielectric unions where required between
steel piping and copper tubing.

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

4.1 METHOD OF MEASUREMENT:

A. ab 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