Frequently Asked Questions

What original Hammel Dahl technical documents are available from WTM?

WTM maintains documents for several legacy Hammel Dahl valve and actuator families, including V500, V600, V800, V810/V811 and V672 valves, A40, A41, A46D, A47R and B50 actuators, and related service information.

Is service information available for original V500 Hammel Dahl valves?

Yes. WTM provides service and installation information for original V500 Series cage-trim valves.

Are documents available for Hammel Dahl V600 and V800 valves?

Yes. WTM’s technical library includes information for 600 Series modulating ball valves and V800 Series globe valves.

Can I find manuals for original Hammel Dahl actuators?

Yes. Available documents include service, installation, maintenance, operating, and parts information for several Hammel Dahl actuator families, including A40, A41, A46D, A47R and B50 designs.

Is technical documentation available for V672 Butterfly Valves?

Yes. WTM provides an instructions and parts-list document for the original Hammel Dahl V672 Series Butterfly Valve.

Does WTM have information for V810 and V811 valves?

Yes. WTM’s historical document library includes control engineering data and service/instruction information for V810/V811 products.

How should I use historical Hammel Dahl technical documents?

Historical manuals should be matched carefully to the exact installed product, model, configuration, and revision. WTM advises end users to confirm the applicability of a document before using it for equipment installed in their facility.