SOLICITATION NOTICE
66 -- Cycle Duplex Compressor
- Notice Date
- 6/12/2006
- Notice Type
- Solicitation Notice
- NAICS
- 423830
— Industrial Machinery and Equipment Merchant Wholesalers
- Contracting Office
- Department of the Air Force, Air Force Materiel Command, AFMC - Air Force Materiel Command Headquarters, HQ AFMC/PKX 4375 Chidlaw Rd Ste 6, Wright-Patterson AFB, OH, 45433
- ZIP Code
- 45433
- Solicitation Number
- F4F5AV6124A100
- Response Due
- 6/15/2006
- Archive Date
- 6/30/2006
- Description
- MINIMUM REQUIREMENT FOR CONTINUOUS CYCLE DUPLEX COMPRESSOR Rotary Screw Compressors Air compressors shall be a single-stage, oil-flooded, air-cooled rotary screw compressor completely pre-piped and with pre-wired control panel. Compressors shall be manufactured under strict ISO 9001 quality control standards. Compressors shall be tested as a completely assembled piped and wired unit. Total package capacity shall be 23 cfm free air delivery at a discharge pressure of 110 psig Compressors shall be capable of continuous full-flow operation 24 hr./day at rated capacity and pressure. Motor voltage shall be 208V, 1 phase, 60Hz. Control system voltage shall be 115 V, 1 phase, 60 Hz. Standard compressor package shall be suitable for use in a 40?F to 105?F ambient temperature range. Airends Rotors -Airend rotors shall have a Sigma profile. Rotors shall be precision-machined from cast iron. Airend drive shaft to be tapered for easy removal of airend pulley. All cast parts shall be 100% inspected for compliance with design tolerances in accordance with ISO 9001 quality procedures. Casing -Airend casing shall be cast iron construction. Bearings -Airend rotors shall be supported on both ends by cylindrical roller bearings to carry radial loads. Angular contact ball bearings shall be installed on the discharge end of each rotor to carry thrust loads with minimal friction. Drive Motor(s) Motor shall have TEFC enclosure. Motor winding shall be 100% copper (aluminum not acceptable) and designed for full-voltage starting. Motor service factor shall be a minimum of 1.15. Motor speed shall be 1800 rpm. Motor insulation shall be Class "F" (Class "B" not acceptable). Motor efficiency shall be 85 % or higher. Starter(s) Starter(s) shall be full-voltage, magnetic starter(s) with 115-1-60 control voltage. Starter(s) shall be magnetic, Wye-Delta, reduced voltage starter(s), to ensure low starting current and reduce thrust-bearing loads. Starter shall be integrally mounted and wired in the compressor package, and located in control enclosure. Drive(s) Drive shall be multi-ribbed single belt drive for flexibility and ease of maintenance. Drive shall include automatic V-belt tensioning device with visual adjustment indicator to maintain proper tension on the V-belts, prolong belt life, and maintain efficient power transfer from the motor to the airend. Belt shall be 100% oil-resistant. Control Cabinet(s) Control cabinet shall have NEMA 12 protection. Electrical components shall be UL and/or CSA approved and labeled as required. Electrical schematic diagram shall be included in the service manual for ease of reference. Cabinet backplate shall be galvanized for improved grounding. Compressor Instrument Panel(s) Control system shall be suitable for use in a -4?F to + 140?F ambient temperature range. Control system shall meet or exceed NEMA 12 standards for environmental protection. The Control system shall monitor direction of rotation, discharge pressure, emergency stop button, airend discharge temperature, and motor overload relay. Instrument panel shall consist of the following control system: Start/Stop Switch Airend Discharge Temp Gauge Power On Indicator Light Service Hour Meter Discharge Pressure Gauge Emergency Stop Button Control system shall allow automatic restart after power failure. Unit will automatically start when pressure reaches the low set point of pressure control. Compressor(s) shall shut down in the event of motor overload, high airend temperature, incorrect rotation, or loss of drive. Duplex configurations, control shall be capable of manually sequencing/alternating compressors for maximum flow and to allow for even load hours. Compressor Enclosure(s) Compressor shall have steel frame assembly and be completely enclosed, including bottom. All models shall include hinged doors and/or removable access panels for easy access to the compressor for maintenance. All models shall incorporate safety interlock switches on doors for protection of operators and maintenance personnel. Enclosure shall be heavily sound insulated, and compressor shall have a maximum full-load noise level of 65 dB(A) or less at 3 feet in accordance with CAGI/Pneurop test code. All sound dampening material shall be oil repelling and cleanable. Airend and motor shall be mounted on a steel frame isolated from compressor frame with rubber vibration isolators. Compressor frame shall be isolated from the floor by rubber vibration pads. All access panels/doors shall have slotted key locks or handles. Door key shall be provided. Ambient cooling air shall enter enclosure after passing through a 40-micron filter mat. Compressor shall be fitted with an air inlet filter rated at 4 microns. Cabinet panels shall have a "Powder-Coat" type paint finish, which shall be durable and scratch-resistant. All access panels/doors shall be gasketed to minimize dust or dirt entering the compressor enclosure. Internal Piping All major air and oil pipes shall be made of steel and feature flexible Aeroquip connections, with o-ring seals, to reduce the likelihood of cracks and leaks. Lubrication/Cooling System Compressor(s) shall have differential pressure, fluid circulation system. Compressors requiring a pump and/or stop valve are not acceptable. Compressor shall be factory-filled with semi-synthetic or optional full synthetic lubricant. Fluid filter shall be spin-on type capable of removing particles down to 10 microns. Compressor fluid cooler shall have thermostatic control valve to maintain optimum operating temperature. Compressor shall have an ASME separator tank/sump with integral fluid separator element and minimum 215 psig rated working pressure. Separation system shall include three stages -mechanical separation and two-stage coalescing filter. Compressor package shall have a maximum fluid carryover of 2 -3 ppm. Tank shall also include sump pressure gauge, fill plug, fluid level sight glass(es), and quick disconnects for measuring air pressure differential across filter element. ASME coded safety relief valve(s) shall be installed on fluid separator tank. Separator shall also be equipped with quick disconnect and fluid drain hose for pressurized fluid changes. Fluid coolers and aftercoolers shall be easily accessible for ease of maintenance. Air-cooled aftercooler and fluid cooler shall be integrally mounted to the compressor enclosure. Aftercooler approach temperature shall be less than 18? F. Fluid cooler shall include drain plugs to ensure complete fluid removal without costly flushing. External Connections Connections from the compressor to the receiver tank shall be flexible pipe to ensure no transmission of vibration between components. Receiver Tank Air receiver tank shall be at least 80 gallons. Air receiver tank shall meet all applicable ASME specifications and codes. Air receiver tank shall be fitted with pressure safety relief valve, liquid-filled pressure gauge, and manual drain Refrigerated Air Dryer Refrigerated dryer shall be sized to product a low pressure dew point based on maximum ambient conditions of 100? F, inlet air temperature of 100? F, and inlet pressure rating of 100 psig. Refrigerated dryer shall include a combination internal liquid separator and electronic automatic condensate trap. Refrigerated dryer shall be wired separately for power. Compressor Control Compressor shall have automatic dual control as standard. Switchable Modulation control is an acceptable option. Compressor shall automatically load after starting if system demands it. Compressor shall have time delay relay to shut down the compressor after running unloaded for a pre-determined period to avoid excessive motor starting. Compressor shall cut in at 90 psig and cut out at 110 psig. Testing and Inspection Parts must be inspected as part of strict ISO 9001 quality control program. Each compressor shall be run and tested for leaks, pressure, temperature, rotation, and full load amp draw. Warranty Compressor package shall be warranted free of defects in material and workmanship for a minimum period of 12 months.
- Place of Performance
- Address: AFIT, 2950 HOBSON WAY, WPAFB, OH
- Zip Code: 45433
- Country: USA
- Zip Code: 45433
- Record
- SN01067843-W 20060614/060612220500 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
| FSG Index | This Issue's Index | Today's FBO Daily Index Page |