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Summary of Contents for DeZurik APCO CVS-EDV
- Page 1 APCO CVS-EDV SWING CHECK VALVES D12042 Instruction February 2016 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.
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Page 3: Table Of Contents
DeZURIK APCO CVS-EDV Swing Check Valves Table of Contents Description ..........................4 Handling and Storage ......................... 4 Installation ..........................4 Fusion/Powder Coated Valves ....................5 Maintenance ..........................5 Shaft Packing Adjustment ....................... 5 Shaft Packing Replacement ....................6 Disc Seat Replacement ......................6 Changing Counterweight or Spring Assembly to Opposite Side of Valve ....... -
Page 4: Description
Installation • The APCO CVS-EDV Swing Check Valve may be installed in a horizontal or vertical position (with the flow upward). In either case, the Counterweight Arm should be set in horizontal position. Unless otherwise specified, the valves are shipped for horizontal installation. -
Page 5: Fusion/Powder Coated Valves
DeZURIK APCO CVS-EDV Swing Check Valves Installation (Continued) • Before installation, remove foreign material such as weld spatter, oil, grease, and dirt from the pipeline. • Prepare pipe ends and install valves in accordance with the pipe manufacturer’s instructions for the joint used. -
Page 6: Shaft Packing Replacement
DeZURIK APCO CVS-EDV Swing Check Valves Maintenance (Continued) Shaft Packing Replacement Removal of the valve from the line for shaft packing replacement is not required as long as the shaft is accessible. 1. Relieve the pressure in the pipeline and close the valve. -
Page 7: Changing Counterweight Or Spring Assembly To Opposite Side Of Valve
DeZURIK APCO CVS-EDV Swing Check Valves Maintenance (Continued) Changing Counterweight or Spring Assembly to Opposite Side of Valve Servicing the valve while the pipeline is under pressure can cause personal injury or equipment damage. Relieve pipeline pressure before servicing the valve. -
Page 8: Adding Air Cushion Assembly To Valve
DeZURIK APCO CVS-EDV Swing Check Valves 14. If the valve is equipped with an Pneumatic Cylinder (B68): a. Install the Cushion Lever (B88) onto the Shaft (A13). b. Install the Pneumatic Cylinder assembly (B68) and Cylinder Bracket (B66) onto the Body (A1) using Cylinder Bracket Mounting Bolts (B69). -
Page 9: Operation
DeZURIK APCO CVS-EDV Swing Check Valves Operation The flow from the pump opens the Disc (A10) and raises the counterweight assembly. If the valve is equipped with an air cushion, the cylinder piston is pulled upward, drawing air freely into the Pneumatic Cylinder (B68) through the Flow Control Valve (B67). -
Page 10: Adjustment (Valves With Air Cushion With Lever & Weight)
1. Testing must be conducted carefully and adjustments made in small increments to arrive at the optimum setting where the swing check valve shuts off just prior to or at zero reverse flow. 2. The APCO CVS-EDV Swing Check Valve is not a silent closing check valve. D12042... -
Page 11: Drawings
DeZURIK APCO CVS-EDV Swing Check Valves Drawings Figure 3 – APCO CVS-EDV Swing Check Valve February 2016 Page 11 D12042... -
Page 12: Lever & Weight
DeZURIK APCO CVS-EDV Swing Check Valves Drawings (Continued) Figure 4 - CVS-EDV Swing Check Valve (Lever & Weight) D12042 Page 12 February 2016... -
Page 13: Air Cushion
DeZURIK APCO CVS-EDV Swing Check Valves Drawings (Continued) Figure 5 - CVS-EDV Swing Check Valve (Air Cushion) February 2016 Page 13 D12042... -
Page 14: Lever & Spring 3-14
DeZURIK APCO CVS-EDV Swing Check Valves Drawings (Continued) Figure 6 - CVS-EDV Swing Check Valve (Lever & Spring 3-14”) D12042 Page 14 February 2016... -
Page 15: Lever & Spring 16-30
DeZURIK APCO CVS-EDV Swing Check Valves Drawings (Continued) Figure 7 - CVS-EDV Swing Check Valve (Lever & Spring 16-30”) February 2016 Page 15 D12042... -
Page 16: Bill Of Materials Table
DeZURIK APCO CVS-EDV Swing Check Valves Table 1 - CVS-EDV Swing Check Valve Parts Lever & Weight, Lever & Spring, and Cylinder Parts Item Item Description Description Number Number Body Spring Lever Arm Ret. Screw 3-14" Cover Spring Bracket Cover Gasket Lever Arm Fabrication 3-14"... -
Page 17: Troubleshooting
DeZURIK APCO CVS-EDV Swing Check Valves Table 1 - Continued Lever & Weight, Lever & Spring, and Cylinder Parts Item Description Number Y-Connector Pin Y-Connector Pin Retaining Ring Spring Cylinder Spring Cylinder Mount Bolt Lever arm fabrication 16-30" Spring 16-30"... - Page 18 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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