4520--Lyons VAMC Water Heater Replacement Brand Specific to ensure hookups are compatible no additional piping being considered

The contract involves the replacement of water heaters at the Lyons VAMC facility in New Jersey with two specific Patterson-Kelley semi-instantaneous water heaters. The first unit, Model PK-08D, is designed to provide 27 gallons per minute (GPM) of domestic hot water within a temperature range of 40-120°F, operating on 25 psig inlet steam and 5 psig coil pressure with a steam consumption rate of 1122 pounds per hour. It includes a solid copper-nickel pressure vessel rated for 150 psi ASME working pressure, factory insulation, a 90/10 double wall copper-nickel tube bundle, a bronze circulator pump, various valves, a float and thermostatic condensate steam trap, an auxiliary drip tap, and a vacuum breaker. Additional features include a double solenoid high-temperature limit system, a vertical stand permitting heating section removal without disconnecting water lines, and factory-authorized start-up and training. The second unit, Model PK-10D, delivers 65 GPM of domestic hot water at temperatures from 40-140°F, running on 40 psig inlet steam and 25 psig coil pressure with a 3469 pounds per hour steam demand. It mirrors many features of the first model, including a similarly rated copper-nickel pressure vessel, tube bundle, and circulator pump, but incorporates larger size components such as a 2½-inch Spence pilot-operated steam control valve and related relief and condensate components correspondingly scaled. Both units come factory insulated and ready for installation with minimal additional piping to ensure compatibility with existing hookups. The contract is managed by the Department of Veterans Affairs with a solicitation deadline in May 2026 and emphasizes brand-specific equipment to minimize retrofit complexity.