NASA Langley Research Center, MS 144, Industry Assistance Office Hampton, Va. 23681-0001

Z -- S/M MODS TO HIGH PRESSURE AIR TRANSFER LINE - EAST AREA DISTRIBUTION SYSTEM SOL 1-144-GGK1.1133 DUE 072195 POC Bid Distribution Office, 804-864-2547. The work to be performed includes, but is not limited to, the following: The Contractor shall install the Government furnished, high pressure steam to air heat exchanger and bypass piping in the courtyard of Building 648. The work shall include transporting the heat exchanger from Building 1247E, pouring a concrete slab in the Building 648 courtyard, and placing the heater. The Contractor shall attach the heat exchanger and bypass piping to the 4-inch transfer line. Four-inch stainless steel piping is Government Furnished. Any required, 4-inch stainless steel flanges and fittings are not Government Furnished. The Contractor shall install 4-inch, Government Furnished, wafer valve and low pressure (15 psig) steam piping connecting to the heat exchanger. The Contractor shall procure and install condensate sump pump and condensate return piping. Carbon steel, steam piping and condensate piping and fittings are not Government Furnished. The Contractor shall install 4-inch, Government Furnished, pressure reducing control valve and controller downstream of the steam heat exchanger. The Contractor shall install 12-inch carbon steel piping downstream of the 4-inch pressure reducing control valve. The piping shall be routed under the tunnel shell and along the far side of the tunnel to its termination near the Building 648 Air Dryer Tower. The 12-inch piping and fittings are not Government Furnished. The Contractor shall install the manual, 12-inch, Government Furnished wafer valve near the termination of the 12 inch piping. The Contractor shall install the Government Furnished, 1-inch manual bleed valve after the 12-inch wafer valve. The Contractor shall install the Government Furnished, 12 inch by 6 inch pressure reducing control valve downstream of the 12-inch wafer valve. The Contractor shall supply and install the piping to connect the 12 inch by 6 inch control valve to the tunnel piping. The Contractor shall install Government Furnished pressure safety relief valves at the steam heat exchanger, after the 4-inch pressure reducing control valve, and after the 12 inch by 6 inch pressure reducing control valve. The Contractor shall also install Government Furnished pressure relieving rupture disks on the steam line feeding the steam heater and the air line connecting the 12 inch by 6 inch pressure reducing control valve to the tunnel piping. The Contractor shall install pneumatic shop air lines to the pressure reducing control valves. The Contractor shall paint all carbon steel piping in accordance with specifications. For the flushing of the 12 inch line to Building 648, the Contractor shall reinstall the 12 inch blank flange with a 6 inch stand off. After completion of the flushing, the Contractor shall install the valves and reconnect all disassembled piping connections as shown on the drawings. Contract duration 70 days--Estimated cost range between $100,000 and $250,000--All responsible sources may submit a bid which will be considered by the Agency--Bid opening is approximate--Solicitation available approximately 6-21-95. (0151)

Loren Data Corp. http://www.ld.com (SYN# 0153 19950601\Z-0001.SOL)