Installation, Maintenance, and Operating Instructions for Current Koso Hammel Dahl Products

IMO Series G110

IMO Series G120

IMO Series G130

IMO Series V510/520

IMO Series G110 & Series V510/520 with VeCTor Trim

IMO Series V817

IMO Series V830/831

IMO Type D Actuators

IMO Type R Actuators

IMO Type A-46 Actuators

IMO Type A-47 Actuators

IMO LS Type 1 Actuators

IMO LS Type 2 Actuators


Notice: These documents are provided for the convenience of product end-users. Users of this information shall be responsible for confirming applicability of any particular document to any given end-user’s product installed in the end-user’s facility/operation.

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  • WTM Valves & Services

    Supplier of Koso Hammel Dahl Valves
    Manufactured in West Bridgewater, MA

    Engineering/Technical Support for Nuclear Power Applications:

    WTM Valves & Services
    A Division of Wright Technical Marketing, LLC
    186 Carpenter Lane
    Lewisburg, PA 17837

    Phone: (570) 522-8323
    Fax: (570) 522-0187


    Over 30 Years of Experience in the Nuclear Power Industry