AWARD
41 -- PROJECT JLSQ112014
- Notice Date
- 8/25/2011
- Notice Type
- Award Notice
- NAICS
- 238220
— Plumbing, Heating, and Air-Conditioning Contractors
- Contracting Office
- 171 ARW/MSC, Pittsburgh International Airport, 300 Tanker Road #4202, Coraopolis, PA 15108-4204
- ZIP Code
- 15108-4204
- Solicitation Number
- W912KC11T0020
- Response Due
- 8/5/2011
- Archive Date
- 10/4/2011
- Point of Contact
- Francis McNulty, 412-776-7685
- E-Mail Address
-
171 ARW/MSC
(francis.mcnulty@ang.af.mil)
- Small Business Set-Aside
- N/A
- Award Number
- W912KC-11-P-0133
- Award Date
- 8/10/2011
- Awardee
- PROFESSIONAL MECHANICAL SALES & SERVICE, INC. (879486306) <br> 110 CHESWICK AVE<br> CHESWICK, PA 15024-1354
- Award Amount
- $24,200.00
- Line Number
- 0001
- Description
- STATEMENT OF WORK PROJECT JLSQ112014 Replace Boiler Tubes Building 301 & 302 SCOPE: The work consists of furnishing all labor, materials, tools, Contractor's equipment, supplies, transportation, supervision and inspection required to perform all the work described below UNLESS OTHERWISE NOTED BELOW. LOCATION/SITE VISITS: Thursday, 28-JULY-2011 at 9:00AM. See TERMS and CONDITIONS, 1.2 for more details. Contractor questions and concerns shall be directed to the Contracting Officer -Francis McNulty, francis.mcnulty@ang.af.mil (email) GENERAL REQUIREMENTS: The hours of operation at the PaANG base are a compressed work schedule as follows: 1st Week: Monday through Thursday 0700 hours to 1600 hours, Friday 0700 to 1500 hours. 2nd Week: Tuesday through Friday 0700 hours to 1600 hours. Prior coordination with the Contracting Officer's Representative is required for work start dates and scheduling of work identified below as requiring advanced coordination. Contractor will sign in and out at the beginning and end of each work day. GENERAL DESCRIPTION OF WORK: This project is to provide internal boiler repairs to the low pressure steam boilers located in building 301 & 302. Replace two mechanical feed pump seals, replace two mechanical circulating pump seals, repair leaks in threaded coupler located in the ceiling of building 302A room 107. Should additional repairs be necessary other that those identified in this Statement of Work they shall be submitted for approval in writing along with an estimated associated cost prior to making those repairs. ELEMENTS OF WORK: 1. Boiler #1: Mohawk Model Number 4-5-75, Serial Number 864080 a. Open boiler inspect condition of water jacket. b. Remove and replace approximately 10-12 boiler tubes. c. Punch & clean all remaining tubes. d. Replace front and rear door insulation. e. Provide combustion analysis to ensure boiler is operation at peak efficiency. 2. Boiler #2: Mohawk Model Number 4-5-75, Serial Number 863980 a. Open boiler inspect condition of water jacket. b. Remove and replace approximately 10-12 boiler tubes. c. Punch & clean all tubes. d. Replace front and rear door insulation. e. Provide combustion analysis to ensure boiler is operation at peak efficiency. 3. General Items a. Repair hot water leak located in building 302A, room # 107 b. Replace two feed water pump seals. c. Replace two circulating pump seals. d. Replace tubes in two boilers. e. Clean remaining boilers tubes prior to returning to service. f. Hydrostatically test boilers. g. Provide R1 forms on welded repairs. h. Perform boil out procedures on boilers to remove grease and oils from new tubes. i. Contractor to dispose of all debris off site. j. Contractor responsible for all field measurements and verifications. 4. CLEANING OF BOILERS FOR OIL AND GREASE REMOVAL Prior to putting a new boiler into service or returning a boiler to service after it has been repaired and/or contaminated with oil or grease, it must be boiled out to remove these contaminants. Otherwise, these contaminants can cause operational problems such as foaming and/or priming, reduction of boiler efficiency and in severe cases, even tube failures. In many cases, alkaline boil out procedures are described in the boiler manufacturer's operating manual for the particular boiler. However, where they are not, the general procedure described below will suffice. Preparation for Cleaning Prior to any cleaning operation, the boiler should be opened and inspected to determine both the actual internal conditions with respect to deposits and to insure that any rags, tools, etc. inadvertently left by workmen have been removed. Gauge glasses should be replaced with temporary ones and then all bottom drains should be closed and hand hole or manhole covers installed (except where a top one is to be used for adding the cleaning chemicals and filling the unit). The steam valve from the unit must be closed and the vent(s) opened. Cleaning Procedure Once the unit is prepared, the prescribed cleaning chemicals* should be added and the boiler filled with water to the top of the gauge glass. Where dry chemicals are used, they must be dissolved in a mixing tank prior to transfer into the boiler. It should then be fired on low fire to obtain mixing and circulation. When steam is flowing freely from the vent(s), these are then closed and the pressure is raised to 50% of the operating pressure (except for boilers operated at 15 psi or lower where the pressure may be raised to operating pressure). The pressure should then be maintained for 12-36 hours and during this period, the boiler should be blown down from the bottom by 1/2 the gauge glass every 2 hours, refilling to the top of the glass after each blow down. After the boil out procedure is completed, the boiler should be carefully cooled. When sufficiently cool, the vent(s) may then be opened and the unit drained and thoroughly flushed with a high pressure hose. After flushing, it should then be carefully inspected to insure the cleaning has been complete. Where severe deposits existed initially, it may be necessary to repeat the boil out to obtain proper results. After final cleaning and flushing, the temporary gauge glasses should be removed and all hand hole and manhole gaskets be replaced with new ones. The boiler should then be closed and put in (or returned to) service or placed in wet or dry layup according to proper procedures when the unit is to be stored for any appreciable period of time. Chemicals Typically, proprietary chemical blends are specifically recommended for boil out of boilers, such as FORMULA 2985 formulated with a mixture of surfactants, caustic, a phosphate, chelating agents (for mill scale removal), and an embrittlement inhibitor or FORMULA 2990 formulated with a mixture of surfactants, alkali buffer, silicate and phosphate. These formulated proprietary blends are preferred when time allows. In emergencies, a mixture of 0.5-1.0 lb. trisodium phosphate, 1-2 lb. caustic soda and 0.5-1.0 lb laundry detergent per 100 gals. can give satisfactory results
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