SAM #36C25926Q0635_1

Heater Bundle and Siemens Valve Replacement at Rocky Mountain Regional VA Medical Center

This procurement opportunity is for a Heater Bundle Replacement in the Boiler Plant at the Rocky Mountain Regional VA Medical Center in Aurora, Colorado. - Government Buyer: - Department of Veterans Affairs, Network Contracting Office 19, Eastern Colorado VA Healthcare System - OEMs and Vendors: - Aquaplex (manufacturer of domestic hot water heaters, model 150L5A-ISD) - Siemens (manufacturer of control valves, models MVF461H50-30 and MVF461H32-12) - Products/Services Requested: - Replacement of one set of Aquaplex domestic hot water heater tube bundles - Replacement of three sets of Siemens control valves (models MVF461H50-30 and MVF461H32-12) - Addition of three secondary steam isolations - Steam component with parts - Bolt kits (5/8 x 8" Grade 8, 5/8 x 4" B7 studs with nuts, 5/8 x 2" cap screws) - Digital/electric control valves with actuators and 24VDC power supplies (1/2" NPT and 3/4" NPT) - Pipe fitting materials for control valves - 3" 150 Hi-Performance butterfly isolation valves - 3" 150 spiral gaskets - 3" 150 RFSO flanges - Pipefitting services (labor, installation, testing, start-up, training, and reporting) - Unique/Notable Requirements: - Replacement valves must be like-in-kind and match existing Siemens flanged valves - Contractor must be qualified with prior experience in similar work - Compliance with Buy American provisions - No site visit allowed; photographs provided for reference - All work to be completed within 90 days of award - Delivery and installation at the Rocky Mountain Regional VA Medical Center

Description

The purpose of this amendment is to answer questions that were received (see below) and to extend the response date and time to 2:00pm MT 8/6/2026

Q. The price schedule identifies 1/2-inch and 3/4-inch NPT control valves, while the SOW identifies existing Siemens MVF461H50-30 and MVF461H32-12 valves, which are flanged DN50 and DN32 models. Please confirm whether the replacement valves must match the existing sizes and connections or the NPT sizes listed in the price schedule. If the valves are to be resized for the current load, please provide the applicable steam pressure, temperature, flow, and load data.

A. The replacement valves must be like-in-kind with the existing Siemens MVF461H50-30 and MVF461H32-12 valves — matching the existing flanged DN50 and DN32 sizes and connections, consistent with the NPT sizes listed in the price schedule.

Q. The SOW does not identify a site-visit opportunity, and a prospective mechanical contractor has requested a walkthrough to verify existing conditions for pricing. Please confirm whether the VA can accommodate a site visit. If a site visit cannot be scheduled, please provide any available photographs or drawings showing the tube-bundle removal clearance, existing control-valve arrangement, and proposed locations for the three secondary steam isolation valves.

A. A site visit cannot be conducted at this time. In lieu of an in‑person assessment, I have attached photographs that capture the requested information.

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