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Summary of Contents for DeZurik BAW AWWA
- Page 1 DeZURIK 3-20" BAW AWWA BUTTERFLY VALVES WITH TRANSFER MOLDED SEAT D10386 Instruction August 2013...
- Page 2 Recommended spare parts are listed on the assembly drawing. These parts should be stocked to minimize downtime. Order parts from your local DeZURIK sales representative, or directly from DeZURIK. When ordering parts, please include the 7-digit part number and 4-digit revision number (example: 9999999R000) located on the data plate attached to the valve assembly.
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Page 3: Table Of Contents
DeZURIK 3-20” BAW AWWA Butterfly Valves Table of Contents Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -... -
Page 4: Description
3-20” BAW AWWA Butterfly Valves Description The 3-20” BAW AWWA Butterfly Valve is a resilient seated bi-directional valve that meets all class 150 requirements of ANSI/AWWA standard C504. Flanged and mechanical joints are offered. Pressure and temperature ratings are shown on the valve data plate Handling Lifting the valve improperly may damage it. -
Page 5: Installation
DeZURIK 3-20” BAW AWWA Butterfly Valves Installation Mount the actuator on the valve before installation. For a DeZURIK actuator, see actuator instructions. For other actuators: On valves with non-adjustable packing, the actuator interface must include a retaining plate for •... -
Page 6: Installing Valves Using Class 200 Pvc
When installing valves with mechanical joint ends on Class 200 (DR 14 or higher) PVC pipe, call DeZURIK customer service if you have any problems or questions with this procedure 1. Chamfer the ID of the pipe as shown in Table A to provide clearance for the valve disc. -
Page 7: Installing All Valves
The valve actuator is connected to the valve shaft and positions the disc at the open, closed or intermediate positions. Installed DeZURIK actuators come with the position stops pre-adjusted. For other actuators, refer to actuator instructions to adjust the position stops. -
Page 8: Drawings
DeZURIK 3-20” BAW AWWA Butterfly Valves Drawings Figure 2—Disassembled 3–20" BAW AWWA Butterfly Valve D10386 Page 8 August 2013... - Page 9 DeZURIK 3-20” BAW AWWA Butterfly Valves Drawings (Continued) Figure 3—Assembled 3–20" BAW AWWA Butterfly Valve August 2013 Page 9 D10386...
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Page 10: Adjusting Packing
DeZURIK 3-20” BAW AWWA Butterfly Valves Adjusting Packing See Figure 2 to identify parts. Valves without Packing Gland Removing the valve while the pipeline is under pressure can cause personal injury or equipment damage. Relieve pipeline pressure before removing the valve. -
Page 11: Replacing Packing Valves Without Packing Gland
DeZURIK 3-20” BAW AWWA Butterfly Valves Replacing Packing Valves without Packing Gland Removing the valve while the pipeline is under pressure can cause personal injury or equipment damage. Relieve pipeline pressure before removing the valve. 1. Relieve the pressure in the pipeline and close the valve. -
Page 12: Removing Valve
DeZURIK 3-20” BAW AWWA Butterfly Valves 4. Remove the two screws (A26) and the gland (A25). 5. Pull all of the packing rings (A8) from the packing chamber with a hooked tool. 6. Apply a paint-like coat of an NSF 61 approved lubricant (such as Dow Corning 111 or Phoenix 505) to the inside and outside diameters of the new packing, then install the new packing one ring at a time. -
Page 13: Disassembling Valve
DeZURIK 3-20” BAW AWWA Butterfly Valves Disassembling Valve Before disassembly, remove the valve from the pipe line, open the valve and remove actuator (and adapter, if included) from the valve. See the “REMOVING VALVE” section. See Figures 1 and 2 for component identification. - Page 14 DeZURIK 3-20” BAW AWWA Butterfly Valves Reassembling Valve (Continued) 5. Connect the disc to the shaft: On sizes 3–12", align and center the flat on the shaft with the tapped hole in the disc. See • Figure 4. On sizes 3–6", apply one bead of Loctite 242 along half the depth of the threads tapped hole;...
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Page 15: Replacing Bearings
DeZURIK 3-20” BAW AWWA Butterfly Valves Reassembling Valve (Continued) On sizes 18 and 20", align and center the flat on the shaft • with the tapped hole in the disc. Insert the pin (A4) into the mating hole in the disc (A2) so that the flat on the pin is centered on the flat on the shaft. -
Page 16: Troubleshooting
DeZURIK 3-20” BAW AWWA Butterfly Valves Troubleshooting Condition Possible Cause Corrective Action Adjust packing Packing is loose. See “Packing Adjustment.” Packing leaks. Replace Packing. Packing is worn. See “Packing Replacement.” Closed position stop is set Adjust closed position stop incorrectly.
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