SOLICITATION NOTICE
49 -- Blasting Room Reclaim Floor
- Notice Date
- 9/5/2007
- Notice Type
- Solicitation Notice
- NAICS
- 333999
— All Other Miscellaneous General Purpose Machinery Manufacturing
- Contracting Office
- Department of the Air Force, Air Combat Command, 55 CONS, 101 Washington Sq Bldg 40, Offutt AFB, NE, 68113-2107, UNITED STATES
- ZIP Code
- 00000
- Solicitation Number
- Reference-Number-F3H2B17172AG04
- Response Due
- 9/13/2007
- Archive Date
- 9/28/2007
- Small Business Set-Aside
- Total Small Business
- Description
- This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in Federal Acquisition Regulation Sub Part 12.6 as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotes are being requested and a WRITTEN SOLICITATION WILL NOT BE ISSUED. Solicitation number F3H2B17172AG04 is issued as a request for quotations. The solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular (FAC) 2005-18. The NAICS Code is 333999 and the NAICS size standard is 500. 55 CONS intends to issue a firm fixed priced purchase order for delivery of the following items on the Statement of Need: STATEMENT OF NEED BLASTING ROOM RECLAIM FLOOR SPECIFICATIONS 1 PNEUMATIC RECOVERY SYSTEM: The recovery system consists of 'M' shaped recovery channels called M-Sections?, which are connected to a collection duct, called a transition unit. Spent media is conveyed through this system by high velocity air flow. The entire M-Section? floor area is covered by steel grating. 1.1 RECOVERY AREA: There are two (2) each one (1) foot wide by ten (10) feet long recovery ducts covering a total of twenty (20) square feet. 1.2 FLOOR RECOVERY DUCTS: The floor recovery ducts ('M'-Sections?) are of 16 ga. & 12 ga. hot-rolled steel construction. Media falls through the grating into the recovery channels, and is moved pneumatically to the transition duct. 1.3 TRANSITION UNIT: A pneumatic conveying transition duct runs perpendicular to, and at the end of the M-Section? recovery ducts. It is connected to each of the recovery ducts, and is designed to allow a predetermined number of recovery ducts to convey media at one time. Periodically, other portions of the ducts are opened (timer controlled), thus some portion of the conveying ducts in the floor are open at all times. The housing is fabricated from 12 ga. hot-rolled steel. 1.4 GRATING: The entire media recovery area ("M"-Sections?) is covered with steel grating, designed for 2,000lb/ft2 uniform load capacity. This grating is supplied in easily removable sections. 2 RECLAIM SEPARATION SYSTEM: The media reclaim separation system is an air centrifuge, highly balanced separator, which receives all media and debris conveyed from the blasted work piece through a vacuum conveying duct. 2.1 RECLAIM CYCLONE: The cyclone action of the reclaim centrifugally separates the blast media from the conveying air stream and collects oversized debris in the filter screen and deposits reusable media into the storage hopper section. The dust and broken media is pulled through the center vortex tube along with air to the dust collection system. The centrifugal force causes the oversized debris and reusable media to spin closely to the outside wall of the reclaim, away from the vortex tube. The dust and broken media remain closer to the vortex tube because of the light weight. The material and air inside the reclaim has decreased in velocity because of the larger area of the reclaim itself. In the vortex tube, the velocity is increased which allows for the dust and broken media that is closer to the vortex tube to be pulled into the tube and exhausted to the dust collection system. 2.1.1 NOMINAL CAPACITY: 1200 CFM. 2.1.2 SIZE: 27? inside diameter 2.1.3 CONSTRUCTION: The media reclaim is fabricated from a minimum of 12 ga. hot rolled steel. 2.1.4 RECLAIM MOTOR: The media reclaim is powered by a 5 Hp heavy-duty exhauster mounted on the clean air side of the dust collector. 2.1.5 STANDARD FEATURES: A gasketed air-tight access door is provided on the side of the reclaim for easy removal of the filter screen basket and for refilling of the media charge. The filter basket is provided to trap oversize debris. A rubber lined wear plate is provided in the inlet of the reclaim for added abrasive protection. 2.1.6 EFFICIENCY: Reclaim efficiency is determined by the amount of media of the original size remaining in the reclaim with a minimum of original size media in the dust collection system after a prolonged use. At any time during operation of the properly sized and adjusted reclaim, approximately 80% of original sized media by weight will be retained. At the same time, approximately 20% of the original sized media, by weight, can be in the dust collector system. The efficiency can be increased or decreased by how closely the reclaim system is adjusted and monitored for the type of media being used. 2.1.7 ADJUSTMENTS: Minor adjustment in the reclaim system can be made by adjusting static pressure which adjusts the air flow through the system. Major adjustments are made by an externally adjustable pipe inside the vortex tube, which is standard on all the pull through dust collection systems. 2.1.8 LINING: The entire top section of the reclaim assembly is fully rubber lined for protection against excessive wear from harsh abrasives. 2.1.9 STORAGE HOPPER: One (1) each six cubic foot (6 ft3) capacity hopper is provided 2.2 RECLAIM SYSTEM DUST COLLECTION EQUIPMENT: It is a cartridge type, reverse pulse style, and is able to withstand temperatures from -20 degrees C to 97 degrees C. It is designed and built for continuous duty operation, and is of heavy duty construction. 2.2.1 CFM: 1200 2.2.2 SIZE: Approx. 54" L x 36" W x 115" H. 2.2.3 ASSEMBLY: The collector is partially preassembled at the factory and will be shipped in sections. Lifting points are provided for handling and set up. 2.2.4 CONSTRUCTION: Standard construction of the unit is 12 ga. hot rolled steel, reinforced to maintain structural integrity to 25" w. g. All wiring, air piping, solenoid, and diaphragm valves are mounted externally. Inlet and outlet size is 11.5" x 11.5", and they are flanged for ease of ducting connection. 2.2.5 CARTRIDGES: Cartridge cleaning is "on line" by reverse pulse flow of air. The three (3) cartridges are 12 3/4" dia. x 36" long and are constructed of cellulose/polyester filter media, with suspension. Pressure limit is 15 inches Hg. vacuum. Maximum airflow per cartridge is 500 CFM. The filter/media area is 235 ft2 per cartridge. Cartridge permeability allows an approximate maximum of 2.12 CFM of air to pass through one square foot of filter material with an initial pressure differential of 0.53? w.g. Filter media efficiency is 99.7% for .5 micron size particles. 2.2.6 DIFFERENTIAL PRESSURE GAUGE: A differential pressure gauge is supplied to monitor the pressure between the dirty and clean side of the filters. This gauge helps determine the proper setting for the timer "Off" time. 2.2.7 ADJUSTABLE TIMER: An adjustable timer for controlling the "On" and "Off" time of the air pulse is enclosed in a NEMA-4 control panel. "On" time does not have to be adjusted. The "Off" time controls the length of time between each pulse cycle. 2.2.8 ACCESS DOORS: Access doors and removable panels are provided for ease of filter service and maintenance. 2.2.9 DUST DRUM: One (1) 30 gallon drum is provided. 2.2.10 EXHAUSTER: 5 Hp, with outlet damper. 2.2.11 DUCTING: Twenty feet (20?-0?) of ?spiral? type ducting is supplied between the reclaim cyclone outlet and the dust collector inlet 2.2.12 H.E.P.A. FINAL FILTER: The outlet side of the exhaust fan is fitted with a final filter unit, designed to capture fine particle emissions. The unit is rated as H.E.P.A. grade which is 99.97% effective for 0.3 micron sized particles. 3 PRESSURE BLAST MACHINE: The pressure blast equipment is specifically designed for use with most abrasive media, and incorporates all features necessary for efficient performance. 3.1 PRESSURE VESSEL: The media is fed into the compressed air stream from a six (6) ft3 capacity pressure vessel. This pressure vessel is 24" (610 mm) diameter, and cylindrical in shape. It conforms to all appropriate ASME regulations and carries a National Board approval certificate, with a rating of 150 psig. The vessel has a conical bottom with a slope of 60 degrees. The top of the vessel is concave to allow automatic feeding of the media through the remote controlled closure that is located in the center of the concave head. This closure utilizes a rubber-to-rubber seal (commonly known as a "pop-up-valve") when closed. A flat steel "umbrella" is mounted over this filling valve to allow valve closure against a full head of media. During fabrication, the pressure vessels are abrasive blasted to remove any mill scale. A 6" x 8" (150 mm x 200 mm) hand hole is provided for maintenance access. The pressure vessel is supplied with legs for stationary mounting on the equipment floor. All air piping on the blast machine is 1-1/4" (32 mm) I.D. 3.2 MEDIA FLOW VALVE: This valve is a designed so that the manually adjustable metering function and the pneumatically operated valve actuation function are accomplished separately, allowing for quick and inexpensive replacement of wear items. The valve is mounted at 45 degrees to the compressed air piping and includes a "clean-out" access plate above the flow control area. 3.2.1 VALVE OPERATION: When the valve is opened by the remote control handle, the plunger is completely withdrawn from the abrasive flow. When the remote control handle is released, a spring closes the valve actuator, instantly stopping the abrasive flow. The control of the media feed is through gravity only when the pressure in the vessel is equal to the pressure in the compressed air piping. The metering section of the valve incorporates a hardened steel metering plate for long life. The metering valve allows fine adjustment from no-flow to fully open no matter what abrasive is used. 3.3 ABRASIVE CUT-OFF SWITCH: A pneumatic cut-off switch is provided to allow the use of compressed air from the blast nozzle for dust blow down on blasted surfaces. This switch controls the opening and closing of the grit valve from the remote control handle. When abrasive blasting is completed, the operator simply flips the switch to the off position, halting the flow of abrasive. The air valve remains open so that only high velocity compressed air flows from the nozzle. Releasing the RLX handle shuts down the entire unit. 3.4 BLAST HOSE: The blast hose, which conveys the compressed air and media to the blast nozzle, has an inside diameter of 1-1/4" and an outside diameter of 1-7/8". It weighs 39 pounds per each 50'-0" length. This hose is gun rubber lined and wrapped with a dual layer of tough nylon. The hose is rated at a working pressure of 175 psig. The hose lining is 3/16" thick, carbon-black impregnated rubber for static dissipation. It is fitted with lightweight, nylon quick couplings that mount externally, and incorporate automatically interlocking safety wires. 3.5 BLAST NOZZLE: One 3/8? ID tungsten carbide, rubber jacketed nozzle, will be provided with the blast machine. Nozzles are manufactured of the highest quality materials, and designed for long life. Connection of the nozzle to the blast hose is accomplished with an externally mounted nozzle holder made of nylon. In addition to the standard nozzle listed above the following nozzles will be supplied with the facility. 3.6 OPERATOR REMOTE CONTROLS: The remote controls are of the pneumatic type, which incorporate a normally closed inlet valve and normally open outlet valve. Air pressure opens the inlet valve and closes the outlet valve to begin the blasting process. If there is a loss of air pressure to the valves, springs return the valves to their normal position. All quotes should be received NLT Thursday, 13 September 2007, at 10:00 am (CST), and sent electronically via e-mail, if possible, to timothy.sass@offutt.af.mil and charles.jones@offutt.af.mil or faxed to (402) 294-7280. All potential bidders are reminded, in accordance with DFARS 252.204-7004, Required Central Contract Registration, that lack of registration in the CCR database BY Thursday, 13 September 2007, at 10:00 am (CST) will make an offeror ineligible for award. Also, the contractor must have the NAICS code listed in this solicitation on their CCR Registration. The following provisions and clauses apply to this acquisition: FAR 52.211-6, Brand Name or Equal; FAR 52.212-1, Instructions to Offerors Commercial; FAR 52.212-2, Evaluation- Commercial Items, (a. Price and delivery, in order of importance); (Offerors must include a complete copy of 52.212-3, Offeror Representation and Certifications -- Commercial Items with offer which can be found at http://farsite.hill.af.mil/vffara.htm); FAR 52.212-4, Contract Terms and Conditions Required to Implement Status of Executive Orders -- Commercial Items; FAR 52.212-5, Contract Terms and Conditions Required to Implement Statutes Or Executive Orders -- Commercial Items (DEVIATION); 52.232-18, Availability of Funds; 252.212-7000 Offeror Representations and Certifications--Commercial Items; 252.225-7000, Buy American Act--Balance of Payments Program Certificate; 252.225-7001, Buy American Act and Balance of Payments Program;; 252.225-7012, Preference for Certain Domestic Commodities; 252.225-7016, Restriction on Acquisition of Ball and Roller Bearings; 252.232-7003 Electronic Submission of Payment Requests; 252.243-7002, Requests for Equitable Adjustment; 252.247-7023, Transportation of Supplies by Sea. Please reference solicitation # F3H2B17172AG04 on all correspondence. No numbered notes are applicable to this acquisition. FY 07 funds are not yet available and award will be made upon availability of funds. Please RSVP by Monday, 10 September 2007 at 11:00 am (CST), if interested in a site visit. Any questions should be submitted to SSgt Tim Sass at (402) 294-6393 via email at timothy.sass@offutt.af.mil or MSgt Charles Jones at (402) 232-5032 via email at charles.jones@offutt.af.mil. Complete written quotations will be due and must be physically received by the 55th Contracting Squadron/LGCB, 101 Washington Square. Bldg 40, Offutt AFB 68113 NLT Thursday, 13 September 2007, at 10:00 am (CST). Quotations may be submitted via email to timothy.sass@offutt.af.mil , charles.jones@offutt.af.mil, or faxed to (402) 294-7280.
- Place of Performance
- Address: Offutt AFB, NE
- Zip Code: 68123
- Country: UNITED STATES
- Zip Code: 68123
- Record
- SN01395301-W 20070907/070905220922 (fbodaily.com)
- Source
-
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