DeZurik T Series User manual

DeZURIK, Inc. Sartell, Minnesota USA | Phone: [phone] | www.dezurik.com | [e-mail]
DEZURIK CYLINDER
OPERATOR
T-SERIES ACTUATOR
Instruction
D10135
August 2012

DeZURIK
Instruction and Operating Manual Page 2 © 2022 DeZURIK, Inc.
Instructions
These instructions are for use by personnel who are responsible for the installation, operation and
maintenance of DeZURIK valves, actuators or accessories.
Safety Messages
All safety messages in the instructions are identified by a general warning sign and the signal word CAUTION,
WARNING or DANGER. These messages indicate procedures to avoid injury or death.
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. Always wear suitable protection
when dealing with hazardous pipeline materials. Handle valves which have been removed from service
with suitable protection for any potential pipeline material in the valve.
Inspection
Your DeZURIK product has been packaged to provide protection during shipment; however, items can be
damaged in transport. Carefully inspect the unit for damage upon arrival and file a claim with the carrier if
damage is apparent.
Parts
Replaceable wear parts are listed on the assembly drawing. These parts can be stocked to minimize
downtime. Order parts from your local DeZURIK sales representative or directly from DeZURIK. When ordering
parts please provide the following information:
If the valve has a data plate: please include the 7-digit part number with either 4-digit revision number
(example: 9999999R000) or 8-digit serial number (example: S1900001) whichever is applicable. The
data plate will be attached to the valve assembly. Also, include the part name, the assembly drawing
number, the balloon number and the quantity stated on the assembly drawing.
If there isn't any data plate visible on the valve: please include valve model number, part name, and
item number from the assembly drawing. You may contact your local DeZURIK Representative to help
you identify your valve.
DeZURIK Service
DeZURIK service personnel are available to 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 DeZURIK.com.

DeZURIK
Cylinder Operated T-Series Actuator
D10135 Page 3 August 2012
Table of Contents
Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
4
Air Supply - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
Lubrication - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
Closed Position Stop Adjustment - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
Open Position Stop Adjustment - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
5
Removing Actuator - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
Installing Actuator - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
Disassembling Actuator - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
Reassembling Actuator - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
Changing Mounting Positions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
8

DeZURIK
Cylinder Operated T-Series Actuator
D10135 Page 4 August 2012
Description
The Cylinder Operated T-Series Actuator is an economical actuator capable of providing a long-lasting,
dependable means of valve operation. Scotch yoke-series actuators are available in three sizes: Size 3,
Size 5 and Size 7. The actuator has been sized to achieve optimum performance from your valve.
Figure 1 and Table A provide the information needed to identify your actuator.
Table A: Sizes and Dimensions
Actuator Size Dimension “A”
Size 3 9-1/2”
Size 5 12”
Size 7 15-1/8”
Figure 1 - Actuator Sizes and Dimensions
Air Supply
Application of sufficient air (100 psi maximum) to the cylinder port closest to the actuator housing will
close the valve. Application of sufficient air to the port at the opposite end of the cylinder will open the
valve.
Lubrication
Scotch yoke actuators do not require lubrication as regular maintenance. If this actuator is
disassembled, the parts described below must be lubricated during reassembly with EXXON Unirex EP
2 Premium lubricant (recommended) or Petro-Canada Precision XL EP 2 (alternate). See the
assembly drawing for parts identification.
•The threads in the yoke nut.
•The threads in the stop nut.
•The slots in the yoke.
•The sides of the yoke bearings.
•The side of the guide rail.
After the actuator is fully assembled, a layer of lubricant approximately 1/2" thick should be applied to
the surfaces described above, which are accessible and inside the housing.
Closed Position Stop Adjustment
The closed position stop is made by turning the set screw in the end of the cylinder.
1. If the actuator is powered, disconnect and lock out the pneumatic, hydraulic or electrical power
to prevent accidental operation of the actuator.
Accidental operation of power actuator can cause personal injury or equipment damage.
Disconnect and lock out power to actuator before servicing.

DeZURIK
Cylinder Operated T-Series Actuator
D10135 Page 5 August 2012
Closed Position Stop Adjustment (Continued)
2. Pressurize the cylinder so the valve is in the closed position.
3. Loosen the lock nut on the set screw in the cylinder cap.
4. Turn the set screw in or out until the desired closed position is attained.
5. Make sure the thread seal is in place, then tighten the lock nut.
6. If the actuator requires power, reconnect power to the actuator.
Open Position Stop Adjustment
The cylinder must be mounted on the actuator to perform this adjustment.
1. Cycle the valve to determine the need for stop adjustment.
2. If the actuator is powered, disconnect and lock out the pneumatic, hydraulic or electrical power
to prevent accidental operation of the actuator.
Accidental operation of power actuator can cause personal injury or equipment damage.
Disconnect and lock out power to actuator before servicing.
3. Remove the pointer.
4. Remove the actuator cover.
5. Guide Rails.
Sizes 3 and 5: Loosen the guide rail screw closest to the cylinder and remove the other screw.
Size 7: On the guide rail held by two screws; loosen the screws.
6. Move the valve to mid-stroke, then turn the stop nut to adjust the actuator stroke length.
7. Open the valve to check the adjustment; readjust the stop if necessary.
8. Tighten the guide rail screws.
9. Install the cover gasket and cover.
10. Install the pointer.
11. If the actuator requires power, reconnect power to the actuator.

DeZURIK
Cylinder Operated T-Series Actuator
D10135 Page 6 August 2012
Removing Actuator
1. Discontinue pipeline flow.
2. If the actuator is powered, disconnect and lock out the pneumatic, hydraulic or electrical power
to prevent accidental operation of the actuator.
Accidental operation of power actuator can cause personal injury or equipment damage.
Disconnect and lock out power to actuator before servicing.
3. Place the valve in the closed position.
4. Remove the pointer.
5. Remove the cover screws and cover.
6. Loosen the screw clamping the yoke onto the valve shaft.
7. Remove the four screws securing the actuator to the bracket, then separate the actuator from
the bracket.
Installing Actuator
1. Close the valve.
2. Apply a thin layer of Permatex sealant to the machined bottom of the actuator housing.
3. Position the yoke so it points toward the cylinder end of the actuator as shown in Figure 2.
Figure 2 – Detailed View of Yoke Nut and Cylinder Shaft
4. Set the actuator on the valve so the valve shaft engages the yoke, then secure the actuator to
the shaft with four screws.
5. Tighten the screw to clamp the yoke onto the valve shaft.
6. Stroke the valve to determine if stop adjust is necessary; readjust the stops if necessary.
7. Install the cover gasket, then fasten the cover in place.
8. Install the pointer.
9. Pipeline flow may now be restored.
10. If the actuator requires power, reconnect power to the actuator.

DeZURIK
Cylinder Operated T-Series Actuator
D10135 Page 7 August 2012
Disassembling Actuator
1. Discontinue pipeline flow.
2. If the actuator is powered, disconnect and Iock out the pneumatic, hydraulic or electrical power
to prevent accidental operation of the actuator.
Accidental operation of power actuator can cause personal injury or equipment damage.
Disconnect and lock out power to actuator before servicing.
3. Place the valve in the closed position.
4. Remove the pointer.
5. Remove the cover screws and cover.
6. Remove the four screws securing the cap to the housing, then remove the cap and gasket.
7. Remove the guide rail screws and guide rail(s).
8. Remove the stay pin.
9. Remove the four screws securing the cylinder to the actuator housing, then unscrew the
cylinder from the yoke nut and the stop nut.
10. Loosen the screw clamping the yoke onto the valve shaft.
11. Pull the yoke from the valve shaft. It may be necessary to use a wheel puller.
12. Remove the four screws securing the actuator to the bracket, then separate the actuator from
the bracket.
Reassembling Actuator
1. Close the valve.
2. Apply a thin layer of Permatex sealant to the machined bottom of the actuator housing.
3. Set the actuator housing on the valve, then secure it in place with the four screws.
4. Lubricate the actuator components as described in the LUBRICATION Section of this
Instruction.
5. Install the yoke, yoke nut, upper yoke guide and lower yoke guide. Position the yoke so it points
toward the cylinder end of the actuator as shown in Figure 2.
6. Tighten the screw to clamp the yoke onto the valve shaft.
7. Move the valve to mid-stroke.
8. Screw the cylinder into the yoke nut and stop nut. Figure 2 shows the correct distance from the
stay pin hole to the yoke nut.
9. Move the valve to the closed position.
10. Secure the cylinder to the housing with four screws.
11. Install the stay pin.
12. Install the guide rail(s) and secure in place.

DeZURIK
Cylinder Operated T-Series Actuator
D10135 Page 8 August 2012
Reassembling Actuator (Continued)
13. Perform the Open and Closed Position Stop Adjustments as described in the appropriate
Section of this Instruction.
14. Fasten the gasket and cap to the housing.
15. Apply a layer of lubricant approximately 1/2" thick to the appropriate surfaces described in the
LUBRICATION Section of this Instruction.
16. Install the cover gasket, then fasten the cover in place.
17. Install the pointer.
18. If the actuator requires power, reconnect power to the actuator.
Changing Mounting Positions
The actuator may be mounted in 90-degree increments around the valve shaft. To change actuator
mounting positions, remove the actuator from the valve, position it in the desired position, then reinstall
it on the valve. Detailed removal and installation procedures are described in this manual.

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: [phone] ● Fax: [phone]
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