DeZurik D11040 Quick Start Manual Download Page 12

Limited Warranty 

DeZURIK, Inc. (“Seller”) manufactured products, auxiliaries and parts for a period of twenty-four (24) months from date of shipment from 
Seller’s factory, are warranted to the original purchaser only against defective workmanship and material, but only if properly stored, installed, 
operated, and serviced in accordance with Seller’s recommendations and instructions.  

For items proven to be defective within the warranty period, your exclusive remedy under this limited warranty is repair or replacement of 
the defective item, at Seller’s option, FCA Incoterms 2020 Seller’s facility with removal, transportation, and installation at your cost. 

Products  or parts manufactured by others but furnished by Seller  are not covered by this limited warranty.  Seller will  provide repair or 
replacement for other’s products or parts only to the extent provided in and honored by the original manufacturer’s warranty to Seller, in 
each case subject to the limitations contained in the original manufacturer’s warranty. 

No claim for transportation, labor, or special or consequential damages or any other loss, cost or damage is being provided in this limited 
warranty. You shall be solely responsible for determining suitability for use and in no event shall Seller be liable in this respect.  

This limited warranty does not warrant that any Seller product or part is resistant to corrosion, erosion, abrasion or other sources of failure, 
nor does Seller warrant a minimum length of service.  

Your failure to give written notice to us of any alleged defect under this warranty within twenty (20) days of its discovery, or attempts by 
someone other than Seller or its authorized representatives to remedy the alleged defects therein, or failure to return product or parts for 
repair or replacement as herein provided, or failure to store, install, or operate said products and parts according to the recommendations 
and instructions furnished by Seller shall be a waiver by you of all rights under this limited warranty. 

This limited warranty is voided by any misuse, modification, abuse or alteration of Seller’s product, accident, fire, flood or other Act of God, 
or your failure to pay entire contract price when due. 
The foregoing limited warranty shall be null and void if, after shipment from our factory, the item is modified in any way or a component of 
another manufacturer, such as but not limited to, an actuator is attached to the item by anyone other than a Seller factory authorized service 
personnel.  

All orders accepted shall be deemed accepted subject to this limited warranty, which shall be exclusive of any other or previous Warranty, 
and this shall be the only effective guarantee or warranty binding on Seller, despite anything to the contrary contained in the purchase order 
or represented by any agent or employee of Seller in writing or otherwise, notwithstanding, including but not limited to implied warranties. 

THE FOREGOING REPAIR AND REPLACEMENT LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, OBLIGATIONS AND 
LIABILITIES, INCLUDING ALL WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR OF MERCHANTABILITY OR 
OTHERWISE, EXPRESSED OR IMPLIED IN FACT OR BY LAW, AND STATE SELLER’S ENTIRE AND EXCLUSIVE LIABILITY AND YOUR 
EXCLUSIVE REMEDY FOR  ANY CLAIM IN CONNECTION WITH THE SALE AND FURNISHING OF SERVICES, GOODS OR PARTS, 
THEIR DESIGN, SUITABILITY FOR USE, INSTALLATION OR OPERATIONS. 

Disclaimer 

Metric fasteners should not be used with ASME Class 150/300 bolt holes and flange bolt patterns.  If you use metric fasteners with ASME 
Class 150/300 bolt holes and flange bolt patterns, it may lead to product failure, injury, and loss of life.  DeZURIK Inc. disclaims all liability 
associated with the use of metric fasteners with ASME Class 150/300 bolt  holes and flange patterns, including but not limited to personal 
injury, loss of life, loss of product, production time, equipment, property damage, lost profits, consequential damages of any kind and 
environment damage and/or cleanup.  Use of metric fasteners with ASME Class 150/300 bolt holes and flange bolt patterns is a misuse that 
voids all warranties and contractual assurances.  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. 

Limitation of Liability 

IN NO EVENT SHALL SELLER BE  LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL,  PUNITIVE,  OR CONSEQUENTIAL DAMAGES 
WHATSOEVER, AND SELLER’S LIABILITY, UNDER NO CIRCUMSTANCES, WILL EXCEED THE CONTRACT PRICE FOR THE GOODS 
AND/OR SERVICES FOR WHICH LIABILITY IS CLAIMED. ANY ACTION FOR BREACH OF CONTRACT BY YOU, OTHER THAN RIGHTS 
RESPECTING OUR LIMITED WARRANTY DESCRIBED ABOVE, MUST BE COMMENCED WITHIN 12 MONTHS AFTER THE DATE OF 
SALE. 

Sales and Service 

For information about our worldwide locations, approvals, certifications and local representative: 

Web site: 

www.dezurik.com

 

E-Mail: 

[email protected]

 

 

250 Riverside Ave. N., Sartell, MN 56377 ● Phone: 320

-259-

2000 ● Fax: 320

-259-2227 

DeZURIK, Inc. reserves the right to incorporate our latest design and material changes without notice or obligation. 

Design features, materials of construction and dimensional data, as described in this manual, are provided for your information only 

and should not be relied upon unless confirmed in writing by DeZURIK, Inc. Certified drawings are available upon request. 

Printed in U.S.A. 

October 2021      

Summary of Contents for D11040

Page 1: ...DeZURIK Inc Sartell Minnesota USA Phone 320 259 2000 www dezurik com info dezurik com Cylinder Actuator for Knife Gate Valves Instruction D11040 February 2022 ...

Page 2: ... have been removed from service with the assumption of process material within the valve Inspection Your cylinder actuator has been packaged to provide protection during shipment Carefully inspect the unit for damage upon arrival and file a claim with the carrier if damage is apparent Parts Recommended spare parts are listed on the assembly drawing These parts should be stocked to minimize downtim...

Page 3: ... 3 Description 4 Lubrication 4 Adjustments 4 Aligning the Cylinder 4 Valve Support 4 Cylinder Stroke Adjustment 5 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 ...

Page 4: ...o 55 lubricant Adjustments Aligning the Cylinder To work properly the Piston Rod C14 and gate must be aligned The mounting holes in the cylinder and yoke are designed to allow for adjustment Visually check the alignment with the valve in the open and close positions and adjust as needed 1 Align the Piston Rod C14 and the gate with each other 2 Check the Piston Rod C14 and gate alignment in the val...

Page 5: ... screw C21 so that the actuator does not pull the gate off the seat ring when the valve is fully opened To adjust the closed position 1 Close the valve 2 Turn the clip into the piston rod C14 until the cylinder has a minimum of 1 16 stroke remaining and tighten jam nut 3 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 Ja...

Page 6: ...DeZURIK Cylinder Actuator for Knife Gate Valves February 2022 Page 6 D11040 Drawing Figure 2 Component Identification ...

Page 7: ...ge C15 is threaded free from the Cylinder Head C16 slide Cylinder Cartridge C15 all the way down the Piston Rod C14 and off 4 Remove the Wiper C15B Rod Seal C15C and O ring C15D from the Cylinder Cartridge C15A Reassembling the Cartridge 1 Clean the Cylinder Cartridge C15 grooves and lubricate with Dow Corning Number 44 lubricant or Dow Corning Number 55 in cylinders for 40 C to 50 C service 2 Ins...

Page 8: ...r repair 1 To replace the Cylinder Cartridge C15 assembly shut off the air supply 2 Remove the Cylinder Cartridge C15 by unscrewing it from the Cylinder Head C16 with a spanner wrench 3 Once Cylinder Cartridge C15 is threaded free from the Cylinder Head C16 slide Cylinder Cartridge C15 all the way down the Piston Rod C14 and off 4 Replace it with a new Cylinder Cartridge C15 Figure 3 Cartridge Ass...

Page 9: ... port 3 Remove the Nuts C5 and Washers C6 from the Tie Rods C4 4 Remove the Cylinder Cap C7 and remove the O ring C8 from the Cylinder Cap C7 5 Remove the Cylinder Tube C13 Piston Seal C11 and O ring C12 Clean the parts and the grooves in the Piston C10 See Figure 4 Note Rotating the Cylinder Tube C13 while pulling makes it easier to get it off the Piston C10 6 Remove the Piston Rod C14 assembly a...

Page 10: ...roove with Dow Corning Number 44 lubricant and place the O ring C12 and Seal C11 on the Piston C10 For cylinders for 40 C to 50 C 40 F to 58 F service applications a Piston Seal C11 is not used and Dow Corning No 55 lubricant should be applied 6 Carefully slide the Cylinder Tube C13 over the Piston C10 The Piston Seal C11 must be well lubricated Start the Cylinder Tube C13 at a 45 angle and rotate...

Page 11: ...r piston and disconnect air fluid line at opposite port If no leakage find cause of cylinder drift in other component parts in the circuit Cylinder Fails to Move the Load Pressure is too low Check pressure at cylinder make sure it is to circuit requirements Piston seal leakage Cycle cylinder by operating the valve watch air fluid flow at valve exhaust ports at end of cylinder stroke Replace piston...

Page 12: ...ll be the only effective guarantee or warranty binding on Seller despite anything to the contrary contained in the purchase order or represented by any agent or employee of Seller in writing or otherwise notwithstanding including but not limited to implied warranties THE FOREGOING REPAIR AND REPLACEMENT LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES OBLIGATIONS AND LIABILITIES INCLUDING ALL W...

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