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Head Office 

3900 – 101 Street 

Edmonton, Alberta, Canada  T6E 0A5 

Office:  (780) 437-3055 

Fax:  (780) 436-5461 

Website:  www.cvs-controls.com    E-Mail:  [email protected] 

CVS Series 1051/1052 

Rotary Actuator 

Sizes 30 - 70 

All CVS Controls actuators are to be installed and 

maintained in accordance with instructions supplied 

by CVS Controls.   

This manual includes information on installing, 

maintaining and adjusting the CVS Series 1051 

Actuator, sizes 30 to 60, and Series 1052, sizes 40-

70. For information on other equipment used with

these actuators, consult the appropriate manuals.

Introduction 

The CVS Series 1051/1052 Diaphragm Rotary 

Actuator is a pneumatic spring-return actuator 

designed for use with rotary-shaft control valves.  

This is a direct-acting actuator, and an increase in 

the loading pressure extends the diaphragm rod out 

of the spring barrel.  The CVS Type 1051/1052 

Actuator is suitable for on-off service, or for 

throttling service when used with a valve positioner. 

The Series 1052 Actuator includes a spring 

adjuster, which is suitable for use with or without a 

positioner. 

The stroking time is dependent on the actuator size, 

rotation, spring rate, initial spring compression and 

supply pressure. If the stroking time is critical for 

your application, consult CVS Controls Ltd. for 

proper settings. 

The travel indicator is a combination graduated disk 

and pointer located on the actuator end of the valve 

shaft.  Fixed travel stops are an available option. 

Refer to Table 1 for additional specifications for the 

CVS Series 1051/1052 Actuator.  Additional 

information specific to the actuator as shipped from 

the factory are stamped on the nameplate     

(Figure 2) installed on the actuator. 

Instruction Manual 

CVS Series 1051 Actuator 

Installation 

When the actuator and the valve are shipped 

together from CVS Controls Ltd., the actuator is 

usually mounted onto the valve.  Refer to the valve 

body instruction when installing the valve into the 

pipeline, and then follow the instructions in the 

Loading Connections portion of this manual. 

If the actuator has been shipped separately, or if it is 

necessary to mount the actuator onto the valve, refer 

to procedures in the Actuator Mounting portion of this 

manual. 

Calgary Sales Office 

3516 114

 Avenue 

S

E

Calgary, Alberta, Canada T2Z

 

3

V6

 

Office:  (403) 250-1416 

Fax:  (403) 291-9487 

 

CVS Series 1052 Actuator 

Содержание 1051 Series

Страница 1: ...ositioner The stroking time is dependent on the actuator size rotation spring rate initial spring compression and supply pressure If the stroking time is critical for your application consult CVS Cont...

Страница 2: ...degrees with optional fixed stops Acceptable Valve Shaft Diameters In mm Size 30 1 2 12 7 mm 5 8 15 9 mm 3 4 19 1 mm Size 40 1 2 12 7 mm 5 8 15 9 mm 3 4 19 1 mm 7 8 22 2 mm 1 25 4 mm 1 1 4 31 8 mm Si...

Страница 3: ...ews Key 32 and shift the housing slightly Do not stroke the actuator while the cover has been removed 15 Refer to the instructions in the Adjustment section of this manual and properly adjust the actu...

Страница 4: ...hould a volume booster or valve positioner be used ensure that it is properly connected to the factory If a valve positioner is part of the assembly the connection will likely be made at the CVS Contr...

Страница 5: ...the actuator housing and blocking the stroke path Add pressure to the diaphragm casing to stroke the actuator down and provide access to the left hand threaded upper locknut Key 18 Loosen the locknut...

Страница 6: ...ntrol valve assembly includes a valve positioner remove it from the assembly 3 Remove the cap screws and washers Keys 8 and 9 as well as the cover Key 41 4 Remove the retaining ring and then the hub K...

Страница 7: ...r Key Numbers 1 If the bushing Key 34 was replaced press in the new bushing and ensure the end of the bushing is flush with the bottom of the recess in the mounting yoke Key 35 2 Slide the mounting yo...

Страница 8: ...stment Changing Actuator Mounting Generally the actuator is positioned vertically in a horizontal pipeline however there are four possible mounting styles and for possible positions for each style Ref...

Страница 9: ...regulated air source Note Tighten cap screw Key 12 to the recommended bolt torque shown in Table 3 10 Position the travel indicator Key 38 according to the valve position and direction of rotation 11...

Страница 10: ...le zn pl steel Size 30 CVS12A9623X012 Size 40 CVS22A9625X012 6 Cover Plate steel Not required with positioner CVS22A9359X012 Size 60 CVS22A9624X012 17 Housing aluminum Size 30 CVS46A0463X022 7 Cap Scr...

Страница 11: ...12 req d CSV1A675124052 Size 40 16 req d 28 Seal steel synthetic rubber Size 30 40 CVS12A9451X012 Size 60 24 req d 46 Travel Indicator SST not shown CVS12A9693X012 Size 60 CVS12A9452X012 47 Machine Sc...

Страница 12: ...ly as a replacement part Key 30 Hub Aluminum or 416 sst Actuator Size Valve Shaft Diameter Key 30 Hub In mm 30 1 2 12 7 CVS22A9496X012 40 3 4 19 1 CVS22A9497X012 7 8 22 2 CVS22A9486X012 60 1 25 4 CVS2...

Страница 13: ...CVS Series 1052 Size 40 Assembly 13...

Страница 14: ...Series 1052 Size 40 Assembly Parts List 14...

Страница 15: ...Series 1052 Size 60 Assembly 15...

Страница 16: ...CVS Series 1052 Size 60 Assembly Parts List 16...

Страница 17: ...CVS Series 1052 Size 70 Assembly 17...

Страница 18: ...CVS Series 1052 Size 70 Assembly Parts List 18...

Страница 19: ...CVS Series 1051 1052 Dimensional Data inches 19...

Страница 20: ...information included in this publication is presented for informational purposes only CVS Controls Ltd reserves the right to modify or change and improve design process and specifications without wri...

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