DeZurik BAW AWWA Manual
20-168" butterfly valves with epoxy-retained seat
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- Installation, operation and maintenance manual (16 pages)
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Summary of Contents for DeZurik BAW AWWA
- Page 1 DEZURIK 20-168” BAW AWWA BUTTERFLY VALVES WITH EPOXY-RETAINED SEAT D10373 Instruction March 2021 DeZURIK, Inc. Sartell, Minnesota USA | Phone: 320-259-2000 | www.dezurik.com | info@dezurik.com...
- Page 2 Safety label(s) on the product indicate hazards that can cause injury or death. If a safety label becomes difficult to see or read, or if a label has been removed, please contact DeZURIK for replacement label(s). Personnel involved in the installation or maintenance of valves should be constantly alert to potential emission of pipeline material and take appropriate safety precautions.
- Page 3 20-168” BAW AWWA DeZURIK Butterfly Valves with Epoxy-Retained Seat Table of Contents Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
- Page 4 Butterfly Valves with Epoxy-Retained Seat Description The 20-168” BAW AWWA Butterfly Valve is a resilient seated valve, which conforms to all of the AWWA C504 and C516 requirements. DeZURIK offers the BAW AWWA Butterfly Valve in a mechanical joint end style per ANSI/AWWA C111/A 21.11-85 in the 20–48" size range. The flanged end style is available in all sizes.
- Page 5 DeZURIK 20-168” BAW AWWA Butterfly Valves with Epoxy-Retained Seat Drawings Figure 1 - 20–48" BAW AWWA Butterfly Valves March 2021 Page 5 D10373...
- Page 6 DeZURIK 20-168” BAW AWWA Butterfly Valves with Epoxy-Retained Seat Drawings (Continued) Figure 2 - 54–168" BAW AWWA Butterfly Valves March 2021 Page 6 D10373...
- Page 7 Butterfly Valves with Epoxy-Retained Seat Installation Requirements DeZURIK recommends installing BAW AWWA Butterfly Valves with seat side upstream. Whenever possible, install the valve with the shaft horizontal to provide a self-cleaning action on the seat and disc. Refer to the installation drawing.
- Page 8 On valves with adjustable packing, the actuator or mounting bracket must be designed so it does not interfere with the packing gland or hinder packing gland adjustment. For information regarding installation of a DeZURIK actuator, see the instruction for that actuator. Packing Adjustment If the packing leaks on valves without packing gland the packing can be adjusted by removing the actuator, sliding a .03"...
- Page 9 DeZURIK 20-168” BAW AWWA Butterfly Valves with Epoxy-Retained Seat On valves with packing gland, if leakage past the packing occurs, tighten the packing nuts just enough to stop the leakage; over-tightening will cause excessive operating torques and premature packing wear. If packing leakage cannot be stopped by tightening the packing gland nuts, the packing must be replaced.
- Page 10 20-168” BAW AWWA DeZURIK Butterfly Valves with Epoxy-Retained Seat Packing Replacement (Continued) Valves with Packing Gland 1. Close the valve and relieve pipeline pressure. Moving parts from accidental operation of power actuator can cause personal injury or equipment damage. Disconnect and lock out power to actuator before servicing.
- Page 11 DeZURIK 20-168” BAW AWWA Butterfly Valves with Epoxy-Retained Seat Disassembling Valve Before disassembly, remove the valve from the pipe line, open the valve and remove actuator (and adapter, if included) from the valve. Moving parts from accidental operation of power actuator can cause personal injury or equipment damage.
- Page 12 20-168” BAW AWWA DeZURIK Butterfly Valves with Epoxy-Retained Seat Reassembling Valve (Continued) Reassembling Valve 1. Block the body (A1) in a horizontal position with the seat facing down. 2. Holding the disc (A11) in a horizontal position with the shaft connection toward the top of body (A1).
- Page 13 DeZURIK 20-168” BAW AWWA Butterfly Valves with Epoxy-Retained Seat Reassembling Valve (Continued) Final Assembly 1. Secure the adjusting screw and jam nut in the bottom of lower shaft with Primer and Loctite. 2. Make sure that the bearing is within 1/8" of the valve port when seated in the shaft bore.
- Page 14 To adjust the seat, order the seat adjustment kit from your DeZURIK service center listed on the back cover. Seat Replacement To replace the seat, order the seat replacement kit from your DeZURIK service center listed on the back cover. Troubleshooting...
- Page 15 Metric fasteners should not be used with ASME Class 150/300 bolt holes and flange bolt patterns. If you use metric fasteners with ASME Class 150/300 bolt holes and flange bolt patterns, it may lead to product failure, injury, and loss of life. DeZURIK Inc. disclaims all liability associated with the use of metric fasteners with ASME Class 150/300 bolt holes and flange patterns, including but not limited to personal injury, loss of life, loss of product, production time, equipment, property damage, lost profits, consequential damages of any kind and environment damage and/or cleanup.
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