Each machine shall be factory assembled factory tested within last ten years Documentation Documentation

Table A2: Blast Machinery Abbreviations (i.a.w. Militay Standard MIL–STD–12D)

DDC (System) Description:  The Dry Dust Collector (DDC [3 BBL]–N) shall be a self-contained, compact, industrial grade, dry vacuuming and dry dust collection unit with extendable legs designed to accept three each barrels            ([3 BBL]) at the discharge outlet hopper.  An equivalent machine meeting the specified performance requirements for the normal capacity (double barrel unit) DDC [3 BBL]–N is the CYCLONE 12,000 CFM Dust Collector as originally designed and manufactured by Industrial Vacuum Equipment Corporation.

Remarks:

B1 Filtration:  The machine shall be delivered with clean and brand new filter elements pre-installed.  The filter element shall be highly efficient excellent moisture resistant media such as a QX grade cellulose polyester and not paper.  The collection efficiency of the filter elements shall be 99.9% or better by weight on uniform flow of particles of one micron in size or larger based on a standard performance test procedure as provided by ASHRAE.  The filter housing shall be easily accessed such as via a quick-release type mechanism and the filters shall be of a type that can be readily replaced such as by cartridge elements.  To insure all dirt and debris is removed upon filter change-out, the filter housing shall be designed such that all filter elements / cartridges does not pass through the clean air plenum.  The unit shall feature a pulse jet style cleaning system.  In the parlanceof filtration vis-à-vis "air to cloth ratio", the lower the value for the ratio of the machine's rated airflow in cfm [air] to the equivalent surface area of filtration material in square footage [cloth] the better and shall be no higher than two and a half ([air] ÷ [cloth] ≤ 2.5).

B2 Discharge:  The bottom of the dust collector or hopper shall be an inverted double pyramidical shape with a fifty degree slide slope or steeper that dumps directly into two discharge outlets without the need of an auger.  Each outlet shall be complete with an adjustable fifty-five gallon drum cover (manual crank) with an attached flexible hose connecting the hopper to the top of the cover and a manual outlet slide gate or damper with protective screen.  When the Dry Dust Collector legs are extended, the height of the discharge outlet shall allow for easy installation and removal of a standard fifty-five gallon drum on a standard pallet (i.e. ≥40").

A rental  specification  — Overview of Machinery Requirements (continued)

DDC (System) Description:  (continued)

B3 Noise Abatement: The Dry Dust Collector (DDC [3 BBL]–N) shall include a sound package specifically designed for that machine so as to provide ultra-quiet operation in which the noise intensity at the machine's edge or frame shall be 84 dB[A] or less (threshold for not requiring hearing protection).

B4 Utility:  The utility(ies), whether pneumatic-driven and/or electric-driven, shall be as indicated.  The availability of three phase four hundred amperage circuit breakers (3Φ 400A CB) is severely limited.  If the machine is electric-driven, the protective fuse amperage shall be no greater than as indicated. Each electrically powered high voltage machine (i.e. 460 VAC) shall include at least fifty feet (50') for each phase plus ground of appropriately rated electrical cable.  Electrical cable shall be in fifty-foot lengths.  Refer to the rental  specification  —  General Machinery Requirements i.e. All Machines for further electrical information.

BMR (System) Description:  The BMR machine is a combined abrasive Blast (B), Media (M) classification, and vacuum Recovery (R) unit a.k.a. "Vacuum & Blast" (VB) or "Blast & Recovery System" (BRS) machines.  The Blast (B) portion of the machine shall be a stacked assembly in which the top volumetric unit (V₁) is a Reclaimer Storage Hopper (a.k.a. Storage Hopper or Media Reclaimer).  This tank shall process or recycle abrasive "media" such as steel grit via both an air wash system and a turbine vibrator sleeving system resulting in high quality for the reclaimed material.  The bottom volumetric unit (V₂) of the stacked assembly shall be an ASME coded single "Chamber" pressure "Vessel" a.k.a. "Blast Pot" with outlet(s), quantity as specified, capable of being connected to a deadman type remote via a pneumatic line (deadman remote & pneumatic line NOT REQUIRED).  For blasting, the "Vessel" or "Blast Pot" is pressurized.  When additional abrasive media is needed, the blast "Chamber" or "Pot" is depressurized via a conveniently positioned "blowdown" type valve and the chamber is then refilled from the "Storage Hopper" above.  The Media (M) classification system shall be integrally connected to the Storage Hopper and the vacuum Recovery (R) mechanism.  Abrasive to be recycled can be vacuumed into the top of the Media Reclaimer Storage Hopper where it falls onto a vibrating screen.  The dust and fine grit particles that remain suspended in the air shall be drawn into a dust collection type mechanism.  Reclaimed or "cleaned" abrasive shall fall through the vibrating screen into the Storage Hopper.  Debris and paint chips shall be retained by the screen whereupon it may be removed either manually or via the vacuum hose attached to the dust collection type mechanism.  The vacuum Recovery (R) mechanism shall use urethane eductor pump(s) to generate a vacuum (negative) pressurewith airflow.  The filter elements and/or cartridges shall be automatically purged via self-cleaning pulse jets while vacuuming.  Additional filter purging shall be accommodated via a switch to engage the dust collector mechanism.  The machine shall be permanently mounted on a skid to allow for both transport via forklift and lifting via crane per the Lifting and Handling (L&H) portion of this specification.  The machine shall be compact with a small footprint or skid dimensions as detailed in the TRANSITIONS column of Table A1: Machinery Requirements.  An equivalent machine meeting the specified performance requirements for the BMR [1.2K]–2 dual outlet (2 person unit) is the VB–1200 as originally designed and manufactured by IPEC Advanced Systems, Inc. and since modified or refurbished and for the BMR [0.5K]–1 single outlet (1 person unit) is the BRS–3.5 as manufactured by Axxiom Manufacturing, Inc.

Remarks:

B5 Thompson Valve^® II:  The Blast / Media classification / vacuum Recovery (BMR) machines shall meter each outlet with the 1¼" Thompson Valve^® II with tungsten carbide sleeve metering valve as designed / manufactured by Schmidt and Axxiom Manufacturing, Inc.  The multiple design improvements of this second generation Thompson valve such as a larger aperture allowing for improved media flow into the air stream as well as instant and smooth response to pneumatic deadman controls makes this feature a must for the units.

B6 No Extra Hardware:  At the oulet(s) to the BMR machine, the Contractor need not provide the vacuum blast gun a.k.a. "head" or "nozzle", nor outer brushes, nor pneumatic hose, nor deadman's switch(es).  Such extra hardware will be supplied by the Government.

B7 Utility:  The utility(ies) whether pneumatic-driven and/or electric-driven shall be as indicated.

B rental  specification  —  Contractual Requirements

1. Access:  To be allowed onto Point Loma Sub Base, personnel must be US citizens and in possession of appropriate personal identification.  Proof of US citizenship may be necessary and can be required for access to the drydock environs. Allowable documentation of US citizenship is an official government issued Certificate of Birth or Naturalization (w/ raised seal & not a photocopy) or a US passport (can be expired).  Vehicular access requires a non-expired personal Driver’s License and appropriate vehicle identification or registration. The transport vehicle must have the company’s name / logo prominently displayed.  Normal commercial delivery access to the worksite is from 5:30 am to 3:00 pm Monday thru Friday (excludes Federal Holidays).  To gain access to the drydock environs, personnel must be escorted and possess / wear their own personal safety gear which includes:  safety glasses w/ side protection, hard hat, safety shoes.
2. Delivery: The machinery shall be in a fully-charged, fully-assembled, ready-to-use, and in a first-class-operating condition.  All disposable type filters shall be replaced and permanent (metal) filters shall be cleaned prior to delivery.  The machinery with its support equipment shall be delivered to the site on or prior to the requested date.  It is absolutely incumbent and the responsibility of the Contractor to either confirm or to coordinate the date and time of delivery prior to each shipment via the Project Liaison or his/her designate with the Technical Liaison only as back-up.  The Government can provide forklift services for removing the equipment from the vendor’s transport during normal work hours (6 am to 3 pm).  Required documentation shall be provided upon delivery.

NOTE: It is imperative that units be functionally tested prior to delivery.  No exceptions.

3. Literature: If not previously examined by the Technical Liaison, the Contractor shall submit synopsized literature describing the proposed machinery, i.e. an Equipment Data Sheet (EDS), with its bid to Contracting for review by the Technical Liaison so as to confirm that the proposal indeed satisfies the technical requirements.
4. Proposals:  As a standardized format for price comparisons between potential Vendors, the Contractor shall quote to the Contracting office the weekly lease rate for each machine or manifold type and capacity based on a minimum lease duration of eight (8) consecutive weeks with the option to extend thereafter.  Daily extensions for each machine/manifold with its associated ancillary equipment shall be billed at no greater than one-seventh (1/7^th) of the stated recurring weekly lease rate.  The Contractor’s proposal shall provide credit for any down time beyond forty-eight (48) hours (two days).  The cost of round-trip shipping, training, operation & control, and start-up fees shall be included in the lease rate.  If an unforeseen circumstance that is not the fault of the Contractor results in the rental period being less than eight (8) weeks, then the Government's obligation shall be either the lease rate for eight (8) weeks or the lease rate for the actual rental period plus due consideration of the transport company's round-trip shipping fee(s), whichever is less.  Bid comparisons shall be based on the Government's best estimate as to the duration of the lease multiplied by its lease rate for all items except for any optional items.
5. Repair:  The equipment will be operating round-the-clock in a twenty-four hour operation under a rigorous off-site deployment schedule.  Within twelve (12) hours (half day) of initial notification of the need for repair, the Contractor shall have a knowledgeable and equipped technician on the job-site fully prepared to repair the rental equipment.  The defective unit(s) shall be repaired within twenty-four (24) hours (one day) of initial notification or, if the original defective unit(s) cannot be made operational, replaced within forty-eight (48) hours (two days) of initial notification.  If the equipment failure does not arise out of abuse or negligence by the Government, the Contractor shall be responsible for all costs associated with its repair and/or replacement.
6. Return: The Government will dismantle the equipment (disconnect utility lines & remove any government owned fittings, etc.) and provide a temporary storage location convenient for Contractor pick-up.  The Government will notify the Contractor as well as the Contracting Office as to when the machine is released and available for pick-up.  The last day of the rental period shall be the next normal workday after the Contractor has been notified that the equipment is available for pick-up.  The Contractor shall be responsible for transportation.  The Government can provide forklift services during normal work hours for placing the equipment onto the vendor’s transport.
7. Service:  Except for daily surveillance checks only such as liquid levels, the Contractor shall be responsible for and perform all routine maintenance (e.g. refrigerant charging, oil changes, replacing filters, lubrication, coolant replacement, topping off liquid levels, etc.) for the entire duration of the rental period.
8. Start-Up:  If requested by the Project, the Vendor shall: (i) start and run the equipment to verify its operability; (ii) confirm that a set of operating instructions was previously delivered; and/or (iii) instruct designated Shipyard personnel on how to properly run the equipment to include its operation, control, daily checks, & service contacts.  For multiple sets of comparable equipment with essentially similar operation, the orientation given to a specific Project on a particular type and/or capacity of machine can be accomplished just once regardless of delivery.

C rental  specification  —  General Machinery Requirements i.e. All Machines

1. Construction:  Except as noted for a particular type of machinery, the machine unit shall be a single integrated framed structure manufactured as a complete entity to include all devices, accessories, and fittings necessary to perform the function for which it was designed. The equipment shall meet the State and federal requirements for its type such as the National Electrical Code (NEC) for electrical devices / components and the American Society of Mechanical Engineers (ASME) requirements for pressurized vessels / components.  The equipment shall be modular in design so as to act as a stand-alone unit; compact so as to fit in the tight confines of a drydock area; portable so as to be transported by forklift and then lifted by overhead crane; and ruggedly constructed so as to endure a marine industrial environment.  Multiple machines of the same type and capacity shall be of similar design and construction.  Each machine shall be factory assembled and factory tested within the last ten (10) years.
2. Documentation:  Documentation will be located with the equipment via a water proof case affixed to each machine.  As a minimum, the documentation shall consist of:  (i) Technical Instructions (TIs) such as an Operations & Maintenance Manual, Controls Manual, and/or Electrical Manual with Schematics; (ii) instructions and a diagram on Lifting & Handling the equipment with its padeye(s) Certification; (iii) government Contract Number to include the cover sheet to the rental Contract; (iv) a technical synopsis, preferably on a single sheet of paper (double sided if necessary), of the quintessential aspects of the rental machine to include a fan curve for machines with built-in air-handlers; (v) simple Operating Instructions, if not in the TIs; and (vi) points of contact with telephone numbers for requesting emergency repair regardless of the time (24 hours) or type of day.
3. Electrical:  All electrical components shall conform to a NEMA standard (e.g. NEMA 3) that will allow for unsheltered outdoor use of the machine.  Each machine shall require only one type / source of electrical power of either 11565% volt AC / single phase / 60 hertz or 44065% volt AC / 3 phase / 60 hertz.  The type of electrical power required by a machine (voltage & amperage) must be clearly indicated on the outside of the equipment, readily detected, and collocated with all other electrical information. If not included in the synopsized EDS, the Vendor shall provide the Project Liaison with the following details:  (i) electrical power type (i.e. voltage & amperage); (ii) electrical connection size (e.g. for 460 volt machines – specify whether equivalent to Duraline E-1016 or E-1023); (iii) breaker type/size or recommended capacity for the electrical source; and (iv) whether or not the equipment is furnished with over-current protection.  Three phase powered (i.e. 460 VAC) machines shall have panel-mounted male camlock connectors equivalent to a Duraline E-1016 for 200 amps or below and to a Duraline E-1023 for between 200 and 600 amps. The Contractor shall provide electrical cables in such lengths and quantities as dictated in the rental  specification  —  Overview of Machinery Requirements.  High voltage (i.e. 460 VAC) electrical cables furnished by the Contractor shall have ends that are compatible to the machine's panel-mounted camlock connectors.  There shall not be a separate fee for electrical cables so furnished.  The Shipyard will install and electrically connect the rental equipment to the appropriate power source.
4. Lifting & Handling:  Unless exempted by NOTE, each machine shall be firmly attached to a single rigid steel frame with both multiple slots for forklift handling and lifting padeye(s) (preferably welded) to permit safe single point lift operation using an overhead crane without special lifting or handling gear.  The design safety factor for each lifting padeye shall be at least five (5) times the load based on ultimate strength.  For equipment with two (2) or three (3) padeyes evenly spaced, the machine’s weight can be considered equally distributed among the padeyes.  For equipment with four (4) padeyes, the loading on the padeye shall be as if each padeye would lift half (½) the machine’s weight.  The preference is for multiple padeyes to be aligned in the plane of the lift (i.e. padeyes point towards the center) and to be located above the machine’s center of gravity (CG).  If the padeyes are located below the CG, then the machine’s CG shall be accurately indicated as to its elevation as well as its position.  The Contractor shall provide certification that the lifting points meet the criteria described above by design (5 to 1 ultimate strength) or by load test (2 to 1 w/ no yield).  Such certification to include a Lifting Schematic along with any other lifting data shall be included with the documentation attached to the machine.

NOTE: The precise weight of each machine to include its base support shall be prominently displayed.

5. Noise:  When operating at full speed, the noise level must not be over 105 dB[A] (assumes hearing protection of 20 dB[A]) and preferably, should be 85 dB[A] or less (threshold for hearing protection) at six feet (6') from the unit or frame.  A hearing protection safety placard shall be posted on those machines generating more than 85 dB[A] at six feet from the unit or frame.  For equating the noise rating of a particular unit, noise intensity (energy) is cut in half i.e. reduced by 3 dB[A] as the distance is doubled.  Hence, a noise rating of 88 dB[A] at three feet (3') and conversely, a noise rating of 82 dB[A] at twelve feet (12') is equivalent to a noise intensity of 85 dB[A] at six feet.
6. Prohibited Items:  Because the apparatus will be used at a nuclear shipyard with radiological controls, the colors yellow and magenta are specifically prohibited and such colors will neither be painted nor displayed (i.e. no stickers with prohibited colors either) on either the machinery or any of its associated equipment.