Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for DeZurik APCO CSD-800
Summary of Contents for DeZurik APCO CSD-800
- Page 1 APCO CSD-800 SLANTING DISC CHECK VALVES D12012 Instruction July 2017...
- Page 2 Order parts from your local DeZURIK sales representative, or directly from DeZURIK. When ordering parts please choose from the following: If the valve has a DeZURIK APCO nameplate please include the 7-digit part number and 4-digit revision number (example: 9999999R000) located on the data plate attached to the valve assembly.
-
Page 3: Table Of Contents
DeZURIK APCO CSD-800 Slanting Disc Check Valves Table of Contents Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -... -
Page 4: Description
Installation The APCO CSD-800 Slanting Disc Check Valve may be installed in a horizontal position. Contact DeZurik if installed in vertical position with the flow upward. The embossed flow arrow on the valve body should be pointing in the direction of flow. In all cases however, with the CSD- 800-BMB, the tanks (27) and (32) must always be in the upright position with piping from the dashpot cylinder (39) entering at the bottom of the tanks (see Figure 1.) With the CSD-800-... -
Page 5: Fusion/Powder Coated Valves
DeZURIK APCO CSD-800 Slanting Disc Check Valves Fusion/Powder Coated Valves Valves with fusion/powder coated exterior paint require flat washers to be installed under the flange nuts when installing the valve to the pipeline flange to prevent the paint from cracking or chipping. - Page 6 DeZURIK APCO CSD-800 Slanting Disc Check Valves DESCRIPTION Seat Body Half Pivot Body Half Inspection Hole Cover Inspection Hole Gasket Inspection Hole Bolts Diagonal Flange Seal Diagonal Flange Bolts Seat Ring Disc Disc Ring Disc Ring Screws Pivot Pin Pivot Pin Bushing...
-
Page 7: Valve Body Disassembly
DeZURIK APCO CSD-800 Slanting Disc Check Valves Maintenance (Continued) Valve Body Disassembly See Figure 6 for part identification. These valves may open or close without warning due to flow changes from pumps starting and stopping. Servicing these valves while the pipeline is under pressure can cause personal injury or equipment damage. -
Page 8: Operation
DeZURIK APCO CSD-800 Slanting Disc Check Valves Maintenance (Continued) 9. Screw diagonal flange bolts (7) in place but do not tighten. 10. Manually open and close disc (10) to check for binding and proper seating. 11. Tighten all diagonal flange bolts (7). -
Page 9: Csd-800-Tmd Valves
DeZURIK APCO CSD-800 Slanting Disc Check Valves Operation (Continued) Figure 1: Bottom Mounted Buffer CSD-800-TMD Valves See Figure 2 for part identification. Top Mounted Oil Dashpots are used when full control of Disc (10) movement, during either the opening or closing cycle, is required. This type of control provides for adjustment to suit the best performance for the installation. - Page 10 DeZURIK APCO CSD-800 Slanting Disc Check Valves Operation (Continued) DESCRIPTION DESCRIPTION Seat Body Half Seat Ring Seal Pivot body Half Disc Ring Gasket Inspection Hole Cover Indicator Assembly Inspection Hole Gasket Linkage Pin Inspection Hole Bolt Linkage Tension Pin Diagonal Flange Seal...
-
Page 11: Start-Up Procedure (Csd-800 Valves)
DeZURIK APCO CSD-800 Slanting Disc Check Valves Start-up Procedure (CSD-800 Valves) Do not start up the Check Valve with the downstream Gate Valve or Butterfly Valve fully open. 1. Observe the Disc Position Indicator to be sure the Disc is in the closed position. -
Page 12: Start-Up Procedure (Csd-800-Tmd Valves)
DeZURIK APCO CSD-800 Slanting Disc Check Valves Operation (Continued) Table A: Maximum Stroke Adjustment of the Buffer Rod Valve Size Buffer Rod Stroke (in) Valve Size Buffer Rod Stroke (in) 1-1/4 1-1/4 1-1/2 1-7/8 2-1/4 2-3/8 2-5/8 5. Shut-off pump and observe rate of closing. Based on this initial run make necessary adjustments to the Flow Control Valve (41B) and/or the Internal Cushion Needle Valve until satisfactory closing is achieved. -
Page 13: Adjustment Of Flow Control Valve
DeZURIK APCO CSD-800 Slanting Disc Check Valves Operation (Continued) 3. Open the two Flow control Valves (64) connected to the dashpot piping adjacent to the cylinder in the following manner: a. Fully open Flow Control Valve located at the top of the dashpot piping which controls the rate of opening. -
Page 14: Operation Of Internal Cushion
DeZURIK APCO CSD-800 Slanting Disc Check Valves Operation of Internal Cushion The cushioning of a hydraulic cylinder stroke is obtained by trapping the exhaust oil as the piston assembly nears the end of its stroke. In Figure 4, as the Cushion Plunger (1) enters Cushion Cavity (2), the exhaust oil is almost completely trapped by the Ball Check (3) and the Adjusting Screw (4) creating a back pressure against Piston Assembly. -
Page 15: Csd-800-Tmd Valves
DeZURIK APCO CSD-800 Slanting Disc Check Valves Oil Filling Procedure (Continued) 2. Oil Reservoir (27) a. Start pump. b. Fully open Flow Control Valve (41A). c. Remove side pipe plug and Breather Cap (26) and slowly fill with oil until it spills out of the side port. -
Page 16: Drawings
DeZURIK APCO CSD-800 Slanting Disc Check Valves Drawings DESCRIPTION Seat Body Half Pivot Body Half Inspection Hole Cover Inspection Hole Gasket Inspection Hole Bolts Diagonal Flange Seal Diagonal Flange Bolts Seat Ring Disc Disc Ring Disc Ring Screws Pivot Pin... -
Page 17: Troubleshooting
DeZURIK APCO CSD-800 Slanting Disc Check Valves Troubleshooting Condition Possible Cause Corrective Action Foreign matter caught between Fully open valve to remove disc and seat. object. Valve leaks excessively from one side of the disc to the other. Seat ring and/or disc ring are Replace seat ring and/or disc worn or damaged. - Page 18 No claim for transportation, labor or special or consequential damages or any other loss, cost or damage shall be allowed. You shall be solely responsible for determining suitability for use and in no event shall DeZURIK, Inc. be liable in this respect.
Need help?
Do you have a question about the APCO CSD-800 and is the answer not in the manual?
Questions and answers