Click on the links below:
IMO Series G110 & Series V510/520 with VeCTor Trim
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.


Frequently Asked Questions
Which current Koso Hammel Dahl product documents are available on this page?
WTM provides documents covering the G110, G120, G130, V510/V520, V817, V830/V831 valve families, VeCTor Trim applications, and multiple actuator series.
Is technical information available for G110, G120, and G130 valves?
Yes. WTM provides documents covering each of these current Koso Hammel Dahl control valve series.
Is documentation available for V510/V520 valves with VeCTor Trim?
Yes. WTM provides information covering applicable G110 and V510/V520 configurations equipped with VeCTor Trim.
Which Koso Hammel Dahl actuator documents are available?
The library includes documentation for Type D, Type R, A-46, A-47, LS Type 1, and LS Type 2 actuator product families.
Is information available for V817 and V830/V831 valves?
Yes. Technical documentation is available for the V817 valve family and V830/V831 valve products.
How do I know which technical bulletin applies to my installed valve?
Identify the exact valve series, model, trim, actuator, configuration, and any drawing or nameplate information. The document should be verified against the installed equipment before it is used.
Can WTM help if my Koso Hammel Dahl model is not listed?
Yes. Contact WTM with the model number, serial or tag information, application, photographs, and available documentation. WTM can determine what technical information or product support is available.
