DMN-WESTINGHOUSE technical support - M-TDV Multiport Tube Diverter Valve

Welcome to the technical support page for the M-TDV Multiport Tube Diverter Valve.

Here you will find everything you need to operate, service, and maintain your DMN-WESTINGHOUSE M-TDV, including service videos, manuals, recommended spare parts, and answers to frequently asked questions.

If you require assistance, our After Sales Department is ready to help. We also offer training sessions tailored to your specific needs.

The M-TDV Service Video

Important

Stop the valve, disconnect the power supply, and shut off the compressed air supply before performing any maintenance or service work.
The video on this page is intended as a supplementary guide and does not replace the operating manual. In case of doubt, always consult the official documentation.
Always follow the procedures described in the operating manual and adhere to all applicable safety instructions.

Frequently asked questions

Are specific tools required to perform service?

No special tools are required for servicing the M-TDV. A standard set of wrenches and Allen keys is sufficient.

Can all protective covers be removed during maintenance and service?

Yes, all protective covers may be removed for maintenance and service purposes. The covers are not part of the structural integrity of the M-TDV.

Does the factory piping need to be removed to replace the seals?

No, the inflatable seals can be replaced from within the M-TDV after removing the protective covers. The factory piping does not need to be disconnected.

How often should the inflatable seals be replaced?

The replacement interval depends on the number of operating hours and the application conditions. We recommend replacing the inflatable seals during every scheduled service interval and, at a minimum, every 12 months to prevent leakage and unplanned downtime.

Are there any recommendations for reinstalling the seal?

To facilitate installation, lightly lubricate the cylindrical surfaces of the seal with a food-grade grease before reassembly.

Are there any other parts that should be replaced when replacing an inflatable seal?

Yes. Plastic sealing rings located between the nozzle flange and the cap nut ensure an airtight connection.

These rings prevent leakage of the compressed air required to inflate the seal. Because they are single-use components, they must be replaced whenever an inflatable seal is serviced or replaced.

Please refer to the Recommended Spare Parts section for further details.

Is a wiring diagram available for the M-TDV?

Yes. A wiring diagram is available and can be downloaded from the Downloads section on this page.

What is the maximum cable length between the M-TDV and the control unit?

Two cables connect the M-TDV to the control unit: the motor cable and the encoder cable. The motor cable is the limiting factor for the maximum installation distance.

Without additional filters, the maximum cable length is 20 metres. By using suitable filters, this distance can be extended to 30 metres.

Important

Stop the valve, disconnect the power supply, and shut off the compressed air supply before performing any maintenance or service work.
The video on this page is intended as a supplementary guide and does not replace the operating manual. In case of doubt, always consult the official documentation.
Always follow the procedures described in the operating manual and adhere to all applicable safety instructions.