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  • PRODUCT LITERATURE (9)
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  • THERM-X-TROL® Asme/Non-Asme
    Thermal Expansion Absorbers


    Designed, constructed, and tested per ASME section VIII, Division 1 standards.
    • Broadest line of sizes and models (37 models, ASME code and non code)
    • First to obtain ANSI/NSF61, IAPMO* & SBCCI*

    The THERM-X-TROL is designed to provide control of maximum system pressures at a level below the relief valve setting. It also provides an additional space in the system to accommodate the increased volume of water created by thermal expansion, returning it to the system when hot water delivery is demanded. Maximum pressure is kept well below the relief valve setting by the THERM-X-TROL, with its pre-charged air cushion that is separated from system water. The relief valve does not open, therefore "spillage" is eliminated.

    Closed Potable Hot Water System with THERM-X-TROL Expanded (heated) water is absorbed by THERM-X-TROL which means:
    • Water heater and fixtures are protected
    • Eliminates BTU and water waste, saving money and energy
    • No dangerous pressure build-up in the system
    • Relief valves will not be triggered
    • Potential safety hazard reduced
    Copyright 2016 AMTROL Inc. All rights reserved.