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Related Manuals for DeZurik APCO CAC-8000
Summary of Contents for DeZurik APCO CAC-8000
- Page 1 APCO CAC-8000 AUTOMATIC CONTROL CHECK VALVE D12000 Instruction December 2012...
- Page 2 It is located inside the door of the electric actuator or attached to the door handle. If you cannot locate the manual, consult factory or local DeZURIK Representative for replacement manual.
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Page 3: Table Of Contents
DeZURIK service personnel are available to install, maintain and repair all DeZURIK products. DeZURIK also offers customized training programs and consultation services. For more information, contact your local DeZURIK sales representative or visit our website at www.dezurik.com. Table of Contents... -
Page 4: Description
Globe body compensates for the area occupied by the disc, greatly minimizing the head loss thru the flow section of the valve. APCO CAC-8000 Automatic Control Check Valves save power costs due to the smooth flow area and valuable space in the Pump House due to their multi-purpose functions. -
Page 5: Drawings
DeZURIK APCO CAC-8000 Automatic Control Check Valve Drawings DET. DESCRIPTION DET. DESCRIPTION DET. DESCRIPTION DET. DESCRIPTION Body Pivot Half Flange Nut Gear Housing Name Plate Valve Body Half Pivot Shaft Cover Seal Worm Shaft Radial Bearing Dashpot Cylinder Straight Pivot Bushing... -
Page 6: Operation
DeZURIK APCO CAC-8000 Automatic Control Check Valve Operation Check Valve Function The gap between the contact surfaces of the wormwheel and gear segment is called the “slip gear travel”. This slip gear allows the check valve feature to function. Operating as a Check Valve the dashpot cylinder assembly fully controls disc movement with the adjustability to open/close timing to suit the installation, thereby controlling the pressure surges and water hammer. -
Page 7: Flow Control (Throttling) Function
DeZURIK APCO CAC-8000 Automatic Control Check Valve Flow Control (Throttling) Function The valve can be set to function as a Flow Control Valve in the normal flow direction as in Figure 3 or as a Flow Control Valve in the reverse direction as in Figure 4. This is attainable by positioning the wormwheel in the desired position as in Figure 3, the disc is free to move from set position to fully closed, therefore still able to perform as a check valve. -
Page 8: Shut-Off Function
DeZURIK APCO CAC-8000 Automatic Control Check Valve Figure 4: Back Flow Control in Reverse Direction Shut-Off Function The ability to function as a shut-off valve is shown in Figure 5. The Valve disc is tightly closed when the wormwheel is rotated clockwise to its closed position. In this position the wormwheel has locked the segment gear and disc in the closed position and the disc cannot move regardless of pressure or any changes in pressure on either side of the disc. -
Page 9: Drain Valve Function
DeZURIK APCO CAC-8000 Automatic Control Check Valve Figure 5: Shut-off Function Drain Valve Function See “Flow Control (Throttling) Function” Figure 4. December 2012 Page 9 D12000... -
Page 10: Start-Up Procedure
DeZURIK APCO CAC-8000 Automatic Control Check Valve Start-up Procedure 1. Observe Disc Position Indicator to be sure the disc inside the valve is fully closed and the Hydro-pneumatic and Oil Reservoir tanks are in a vertical position. Check oil levels in these tanks and fill, if necessary, up to the street elbow level located on the side of the tank with oil. -
Page 11: Oil Filling Procedure - Dashpot Piping Partially Drained Of Oil
DeZURIK APCO CAC-8000 Automatic Control Check Valve Oil Filling Procedure (dashpot piping partially drained of oil) Use “Mobil” DTE 24, Motor oil SAE 20 or Industrial oil #31. 1. Shut down pump. 2. Relieve Hydro-Pneumatic tank of any pressure, NOTE PRESSURE READING! 3. -
Page 12: Timing Valve Operation
DeZURIK APCO CAC-8000 Automatic Control Check Valve Timing Valve Operation The Timing Valve is an extremely reliable and convenient means to automatically open or close the oil passage. The built-in roller is activated by the Timing Valve Cam, causing a resultant movement of the Timing Valve stem to open or close the oil passage. -
Page 13: Slip Gear
DeZURIK APCO CAC-8000 Automatic Control Check Valve Timing Valve Operation (continued) The Timing Valve Roller when depressed permits oil to flow directly from the Dashpot Cylinder (#63) to the atmospheric Oil Reservoir, bypassing the Flow Control Valve (#64). The unrestricted flow of oil allows virtually instant movement of the piston –... - Page 14 DeZURIK APCO CAC-8000 Automatic Control Check Valve Figure 7: Slip Gear Illustration Figure 8: All Telling Indicator D12000 Page 14 December 2012...
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Page 15: Adjustment Of Flow Control Valves
DeZURIK APCO CAC-8000 Automatic Control Check Valve Adjustment of Flow Control Valves The Flow Control Valve has a micrometer type adjustment which incorporates a color coded reference scale to simplify setting, resetting and adjusting. See Figure 9. A lock nut is provided for locking the valve setting. Turning the valve clockwise closes the valve and turning counter-clockwise opens the valve and increases rate of closure of the check valve. - Page 16 DeZURIK APCO CAC-8000 Automatic Control Check Valve Operation of Internal Cushions (Continued) Figure 10: Cushion “IN” Figure 11: Cushion “Out” D12000 Page 16 December 2012...
- Page 17 If you use metric fasteners with ASME Class 150/300 bolt holes and flange bolt patterns, you do so at your sole risk and any liability associated with such use shall not be the responsibility of DeZURIK, Inc. In addition to the foregoing, DeZURIK’s Manufacturer’s Conditions apply.
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