background image

SD4522D

Emerson Automation Solutions

SpenceValve.com

VCIMD-14960 © 2021 Emerson Electric Co. All rights reserved. 11/21  

Spence is a mark owned by one of the companies in the Emerson Automation 

Solutions business unit of Emerson Electric Co. The Emerson logo is a 

trademark and service mark of Emerson Electric Co. All other marks are 

property of their prospective owners.
The contents of this publication are presented for informational purposes only, 

and while every effort has been made to ensure their accuracy, they are not to 

be construed as warranties or guarantees, express or implied, regarding the 

products or services described herein or their use or applicability. All sales are 

governed by our terms and conditions, which are available upon request. We 

reserve the right to modify or improve the designs or specifications of such 

products at any time without notice.
Emerson Electric Co. does not assume responsibility for the selection, use 

or maintenance of any product. Responsibility for proper selection, use 

and maintenance of any Emerson Electric Co. product remains solely with 

the purchaser.

T61 Series

Americas 

McKinney, Texas 75070 USA 

T   +1 800 558 5853 

+1 972 548 3574

Europe 

Bologna 40013, Italy 

T  +39 051 419 0611

Asia Pacific

 

Singapore 128461, Singapore 

T  +65 6777 8211

Middle East and Africa 

Dubai, United Arab Emirates 

T  +971 4 811 8100

Summary of Contents for Spence T61 Series

Page 1: ... Series Pneumatic Temperature Controllers Introduction Scope of the Manual This manual provides instructions for installation maintenance and parts information for the T61 Series pneumatic temperature controllers Product Description The T61 Series Temperature Controller is ideal for wide ranging fast changing loads on instantaneous heaters and other difficult process applications The cascade princ...

Page 2: ...being held so by initial pressure on the disc and by an internal main spring The pressure pilot is actuated by means of an air signal applied to its diaphragm This signal is received from the temperature pilot as a result of the temperature bulb sensing a drop in temperature from the control setting When steam is turned on it flows through the pressure pilot Figure 3 to No 8B tee Bleedport No 4A r...

Page 3: ...ly physical damage to the controller may result in personal injury or property damage due to escaping of accumulated gas To avoid such injury and damage install the controller in a safe location All pressure equipment should be installed in a non seismic area should not be exposed to fire and should be protected from thunderbolt lightning strikes CAUTION The piping system must be adequately design...

Page 4: ...h the T61 Series controller 4 Gradually turn up temperature adjusting knob until rising loading air pressure causes regulator to open Continue raising temperature setting in this fashion until desired control temperature is reached 5 The T61 Series controller is factory set so that 5 degrees variation above and below the controlled temperature will cause the loading air pressure to vary approximat...

Page 5: ...inspection and replacement of parts depends upon the severity of service conditions or the requirement of local state and federal rules and regulations CAUTION Do not under any circumstances loosen the bolts on the diaphragm chamber of the T61 Series Temperature Controller or attempt to dismantle the thermostat element The system is filled with volatile fluid which if lost will render the pilot in...

Page 6: ...n and move adjusting knob key 4 out to clear stop on dial plate and lock to shaft 3 Unscrew spool key 3 from body by rotating adjusting knob counterclockwise 4 Carefully examine O rings key 6 for nicks and other defects 5 Examine spool key 3 and ball key 2 for defects 6 Clean spool and ball with air pressure 7 Reassemble Testing and Calibrating Reverse Acting For reverse acting pilots control pres...

Page 7: ...WAL05 07927 00 5 Body Set Screw Steel WAL05 11134 00 6 Spool Sealing Rings Viton WAL05 04004 00 7 Sensitivity Screw Steel WAL05 07930 00 8 Valve Spring Stainless steel WAL05 05175 00 9 Pressure Gauge WAL05 17460 00 10 1 8 Nipple Brass WAL05 17459 00 11 1 8 Tee Brass WAL05 17458 00 These parts furnished in Repair Kit Figure 4 T61 Series Assembly TYPE T61 SERIAL NUMBER PLATE AND FLOW ARROW SUPPLY AI...

Page 8: ...ess or implied regarding the products or services described herein or their use or applicability All sales are governed by our terms and conditions which are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Electric Co does not assume responsibility for the selection use or maintenance of any product ...

Reviews: