Watson McDaniel Steam Products
Made in the USA Since 1878

Manufacturer of High-Quality Steam & Fluid Specialty Products


Phone: 847-356-0566   Fax: 847-356-0747      E-Mail: sales@mmcontrol.com

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Watson McDaniel Control Valves

A Control Valve is a device capable of modulating flow at varying degrees between minimal flow and full capacity in response to a signal from an external control device. In a process control loop, an Electronic Controller and Sensor is used in conjunction with a Control Valve to maintain a process variable at a desired set point. The controller compares the sensor signal to the set point and outputs the appropriate response signal to the control valve. The control valve will then modulate to provide the flow response required to maintain the process variable at the set point. In the case of a pneumatic control valve such as the W910 Series, a current-to-pressure (I/P) transducer is required to convert the electrical signal from the controller to the air pressure signal needed to operate the pneumatic valve. Watson McDaniel is unique in its ability to provide all the necessary components to create a complete control loop.

W910 & HB Series Pneumatic Control Valves

Pneumatic Control Valves

The Watson McDaniel W910 Series Pneumatic Control Valve offers high quality at an economical price and incorporates many features found only on more expensive units. A variety of models are available to provide the flow response required by the application.

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Controllers, Sensors, & Ancillary Products

Watson McDaniel Controllers, Sensors, & Ancillary Products

In addition to the control valve, Watson McDaniel also offers the following control loop components: The TR890 Series Electronic PID Controller, the TA901 Electropneumatic (I/P) Transducer, the TJD/TKD Thermocouple Temperature Sensors and the TDD/TMD RTD Temperature Sensors. The TA987 Air Filter/Regulator is available for filtering and regulating plant compressed air for providing clean, dry air at the proper pressure to the W910 Series Pneumatic Control Valve. A variety of Thermowells are available to protect and isolate the temperature sensor stems from the process fluid.

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M&M Control offers a full line of Watson McDaniel Products.
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Phone: 847-356-0566   Fax: 847-356-0747      E-Mail: sales@mmcontrol.com




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WARNING: Some of the products we sell can expose you to chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Contact your sales rep or go to www.P65Warnings.ca.gov for more information.

All registered trademarks are fully acknowledged by: M&M Control Service, Inc.

M&M Control Service, Inc. does not represent or claim any affiliation, association, connection or approvals with or from any manufacturer unless stated. We fully acknowledge all trademarks and/or names which are pictured and/or listed throughout the M&M Control Service, Inc. Website.

(PowersTM, also known as, POWERS REGULATOR, MCC POWERS, POWERS-FIAT, POWERS PROCESS CONTROLS, CRANE POWERS and POWERS, a Watts Industries Company. The POWERS trademark is owned by Powers, A Division of Watts Water Technologies, Inc. M&M Control Service, Inc. Is a Stocking Distributor for PowersTM)

(All names unintentionally excluded from this list will be included in the next revision upon our notification.)

*This list may vary, as names not appearing on this list are entitled to the acknowledgment of their Trademarks by M&M Control Service, Inc.

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