Performance Work Statement Rebuild of Heat Exchangers

DEPARTMENT OF VETERANS AFFAIRS – Eastern Colorado Healthcare Correction and Rebuild of Shell and Tube Heat Exchangers for Critical units

PERFORMANCE WORK STATEMENT

1. Background:

The Rocky Mountain Regional VA Medical Center (RMRVAMC) currently supports its heating with shell and tube heat exchangers with a lead and lag redundancy which requires a set of 2 heat exchangers for pre-heat and re-heat, the facility has experienced failures where the gaskets have failed and leaked leaving only one working heat exchanger with the inability to sustain redundancy and limited sustainability of service in case of an outage. Some of the buildings were constructed without individual isolation creating a hazardous environment for in-house repair and a total shut down of heating through the duration of the repair.

The contractor shall Provide all required installation materials, including gaskets, bolting, supports, and appurtenances as applicable. Confirm valve orientation, clearance, accessibility, and operability after installation. Perform leak testing or pressure testing of the affected piping section in accordance with site requirements before returning the system to service. with this Performance Work Statement (PWS), all VA, local, state, and Federal policies, and regulations.

2. Objective:

Clean and Rebuild of Shell and Tube Heat Exchangers - One time request The objective of this service contract is to have a contractor to furnish all labor, materials, supplies, tools, equipment, and qualified personnel to add isolation valves to 6 currently failing heat exchangers as follows: One flanged 150# 8" gate valve on 3-SWHX-2 steam line

Two flanged 150# 6" hot water valves on 4-SWHX-3 and 4-SWHX-4 One 6" butterfly valve on the hot water line between 03-HWHX-3 and 03-HWHX-4

Provide and install two new flanged hot water valves, at the designated line locations. Provide all required installation materials, including gaskets, bolting, supports, and associated hardware. Confirm proper valve orientation, accessibility, and operability after installation. Perform leak testing or pressure testing of each affected piping section in accordance with site requirements before returning the systems to service.

Clean and rebuild the shell and tube heat exchangers to include: Remove channel heads, bonnets, and associated covers as required to access the tube side. Inspect tube interiors for fouling, scale, sludge, debris, and visible signs of corrosion or damage. Clean tubes using an approved method based on exchanger condition and fouling type, including: