Related Manuals for Watson McDaniel HB Series
Summary of Contents for Watson McDaniel HB Series
- Page 1 Series HB Control Valve Installation Operations & Maintenance Manual 428 Jones Boulevard Phone: (610)495-5131 Limerick Airport Business Center Fax: (610)495-5134 Pottstown, PA 19464 www.watsonmcdaniel.com...
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Page 2: Item Description
Note: All dimensions in inches unless otherwise noted. Each Watson McDaniel Company Product is warranted against defects in material and workmanship for one year from date of shipment. This warranty extends to the first retail purchaser only. All defective material must be returned to the person from whom you purchased the Product, transportation prepaid, free of any liens or encumbrances, and if found to be defective will be repaired free of charge or replaced, at the warrantor’s or seller’s option. -
Page 3: Unpacking And Inspecting
ATO (air-to-open) or ATC (air-to-close) option. The use of a multi- spring setup permits the units to be compact and lightweight. This valve series can be used to automate control valves in both throttling and on/off control of liquids or gases. The HB Series is also available with electric actuation. -
Page 4: Installation
2533800 Watson McDaniel Company HB Valve Manual Rev 0 INSTALLATION: 1. The valve should be installed in horizontal piping with the actuator vertically positioned above the valve. 2. Be sure to clean and remove any scale or debris in piping prior to installation of valve. - Page 5 2533800 Watson McDaniel Company HB Valve Manual Rev 0 START UP REMOVING ACTUATOR: All valves in the installation need to be 1. Place the valve body securely in a vise closed. so that the end connection points are Check to verify that the control signal...
- Page 6 2533800 Watson McDaniel Company HB Valve Manual Rev 0 Figure 3: ATO Assembly 2. Apply air pressure to the non-spring actuator connection to position the actuator spindle in the approximate midpoint of travel. Take care not to exceed the maximum air pressure marked on the actuator nameplate.
- Page 7 2533800 Watson McDaniel Company HB Valve Manual Rev 0 3. Push down on the valve stem to b. For air-to-close: Increase the ensure that the valve is in the open actuator air pressure until the valve position. closes, over 18psig will be enough.
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Page 8: Valve Assembly
2533800 Watson McDaniel Company HB Valve Manual Rev 0 installed or internal components may LAPPING THE SEAT AND PLUG not be functioning properly. Parts should be checked for wear or 1. Follow the disassembly instructions damage. Consult the factory with above for the valve. - Page 9 2533800 Watson McDaniel Company HB Valve Manual Rev 0 4. Install new packing onto the stem and 1. Remove air pressure from the actuator lower into the packing cavity. The V- and shut off upstream and ring packing should be installed so downstream isolation valves.
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Page 10: Troubleshooting
2533800 Watson McDaniel Company HB Valve Manual Rev 0 7. The diaphragm nut is then removed and the diaphragm plate. Make from the upper stem to free the sure to line the springs up with the diaphragm, diaphragm plate, and depressions on the diaphragm washer.
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