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Summary of Contents for DeZurik D11040
- Page 1 Cylinder Actuator for Knife Gate Valves D11040 Instruction February 2022 DeZURIK, Inc. Sartell, Minnesota USA | Phone: 320-259-2000 | www.dezurik.com | info@dezurik.com...
- Page 2 Recommended spare parts are listed on the assembly drawing. These parts should be stocked to minimize downtime. Order parts from your 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
Drawing ................................. 6 Cartridge Rebuild ..............................7 Disassembling the Cartridge ..........................7 Reassembling the Cartridge ..........................7 Cartridge Assembly Replacement ........................8 Disassembling the Cylinder ..........................9 Reassembling the Cylinder ..........................10 Troubleshooting ..............................11 February 2022 Page 3 D11040... -
Page 4: Description
Cylinder Actuator for Knife Gate Valves Description The cylinder used with DeZURIK gate valves is a pneumatic double-acting cylinder that has a recommended supply pressure between 60 and 100 psi. Cylinder pressure not to exceed 100 psi, cylinder can operate at less than 60 psi. Use proper cylinder sizing to determine operating pressure. -
Page 5: Cylinder Stroke Adjustment
Turn the clip into the piston rod (C14) until the cylinder has a minimum of 1/16” stroke remaining and tighten jam nut. Open the valve and adjust the adjusting screw (C21) until the gate is clear of the flow port but fully on the seat ring. Tighten Jam nut (C22). February 2022 Page 5 D11040... -
Page 6: Drawing
DeZURIK Cylinder Actuator for Knife Gate Valves Drawing Figure 2: Component Identification February 2022 Page 6 D11040... -
Page 7: Cartridge Rebuild
5. Carefully slide assembled Cylinder Cartridge (C15), in proper orientation, onto Piston Rod (C14) and screw Cylinder Cartridge (C15) into the Cylinder Head (C16). 6. Mount cylinder onto valve and perform cylinder stroke adjustment as needed. February 2022 Page 7 D11040... -
Page 8: Cartridge Assembly Replacement
4. Replace it with a new Cylinder Cartridge (C15). CARTRIDGE (C15A) O-RING (C15D) ROD SEAL (C15C) WITH PTFE PTFE BACKING BACKING RINGS RINGS PART OF ROD SEAL (C15C) WIPER (C15B) Figure 3: Cartridge Assembly (C15) February 2022 Page 8 D11040... -
Page 9: Disassembling The Cylinder
O-ring (C12) in the Piston (C10). 7. Remove Cylinder Cartridge (C15). Use a spanner wrench to unscrew the Cylinder Cartridge (C15) out of the Cylinder Head (C16). See Figure 5. 8. Clean all parts thoroughly. Replace damaged parts. February 2022 Page 9 D11040... -
Page 10: Reassembling The Cylinder
8. Place the Cylinder Cap (C7) on the Cylinder Tube (C13) and place the Washers (C6) and Nuts (C5) on the Tie-Rods (C4). Tighten the Nuts (C5) to the torque listed in Table A. Figure 6—Assembling Cylinder February 2022 Page 10 D11040... -
Page 11: Troubleshooting
Cylinder is undersized Replace cylinder with one of a larger bore size for the load Piston rod broken Contact DeZURIK Load misalignment, excessive friction at Correct alignment of cylinder to load cartridge or piston Load requirements are... - Page 12 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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