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INSTRUCTION MANUAL 

HS-504

I

517031

CAUTION

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• FOLLOW 

OPERATING 

ALL 

1NsTRucT10Ns. 

INSTALLATION AND 

Hoffman Specialty

®

Series 1140 and 1141 

Temperature Regulators 

·

J"

-

I; 

 

?A,

0,  . 

·i••· 

•TURN OFF WATER OR 

 

STEAM 

BEFORE SERVICING.

•  WEAR HEAT-RESISTANT GLOVES 

BEFORE MAKING ADJUSTMENTS. 

•  OPEN SUPPLY VALVES SLOWLY TO 

PREVENT WATER HAMMER OR 

SUDDEN SHOCK. 

•  HANDLE REGULATOR WITH 

EXTREME CAUTION.  DO NOT LIFT 

REGULATOR BY ANY EXTERNAL 

TUBING.  DO NOT KINK OR TWIST 

TUBING AND AVOID BENDING IT ON A 

RADIUS LESS THAN 4" (100 mm). 

•  THE SENSING BULB MUST NOT BE 

EXPOSED TO TEMPERATURES THAT 

EXCEED THE RANGE LISTED ON THE 

NAME PLATE. 

•  ALARMS OR CUT-OFFS SHOULD BE 

INSTALLED ON CRITICAL 

APPLICATIONS TO INDICATE 

REGULATOR FAILURE.  A LEAK 

COULD CAUSE THE ACTUATOR TO 

LOSE ITS CHARGE AND CAUSE THE 

SYSTEM TO OVERHEAT. 

THIS PRODUCT CAN EXPOSE YOU 

TO CHEMICALS INCLUDING LEAD, 

WHICH IS KNOWN TO THE STATE OF 

CALIFORNIA TO CAUSE CANCER 

AND BIRTH DEFECTS OR OTHER 

REPRODUCTIVE HARM. FOR MOR 

INFORMATION GO TO: 

WWW.P65WARNINGS.CA.GOV.

•  FAILURE TO FOLLOW THIS CAUTION 

MAY RESULT IN PROPERTY DAMAGE 

OR PERSONAL INJURY. 

IMPORTANT: 

If you are uncertain as to the product's

adaptability for your application, please call the factory or 

an authorized representative before installing or using the 

product. 

IMPORTANT: 

Do not install Series 1141 Temperature

Regulators in applications where ambient temperature 

exceeds the regulator's set control temperature. 

Summary of Contents for Bell & Gossett Hoffman Specialty 1140 Series

Page 1: ...LARMS OR CUT OFFS SHOULD BE INSTALLED ON CRITICAL APPLICATIONS TO INDICATE REGULATOR FAILURE A LEAK COULD CAUSE THE ACTUATOR TO LOSE ITS CHARGE AND CAUSE THE SYSTEM TO OVERHEAT THIS PRODUCT CAN EXPOSE...

Page 2: ...ahead of all steam regulators See Figure No 2 When controlling flow of water used for cooling the valve can be installed on the supply end and may also be installed on the discharge end of the unit Th...

Page 3: ...r as possible When a thermometer is used it should be located PAST the bulb at least 6 ft 1 8 m in the pipeline or on the same level in the tank The bulb can be installed horizontally vertically or in...

Page 4: ...eme temperatures are incurred 2 Form a loop with a few turns of tubing and place next to the regulator This helps to absorb vibra tions in the pipeline SEPARABLE WELL INSTALLATION Separable wells prot...

Page 5: ...stuffing box nut as indicated If valve stem has more travel than indicated valve will not shut off CHANGING VALVE DISC MOVEMENT Under some conditions it may be necessary to adjust the amount of valve...

Page 6: ...s will assist in checking total valve movement on opening and also the thrust of the new thermostatic actuator 6 Cool the new thermostatic actuator bulb which is to be installed at least 20 F 6 C lowe...

Page 7: ...ve spacer and fasten bellows housing in place 9 If stem does not move unscrew upper stem from lower stem a turn at a time until this movement is obtained 10 Stem should move 1 32 0 8 mm Screw upper st...

Page 8: ...t is not at the desired point increase or decrease the temperature by turning the adjustment wheel in the proper direction for a higher or lower temperature The proper direction is indicated by an arr...

Page 9: ...e Capillary has kink Sharp bend will stop signal to pilot Solution Replace actuator or work out kink by hand c Cause Actuator range is incorrect The actuator will not operate beyond its range Solution...

Page 10: ...0 design load at all times h Cause Poor temperature response Solution On units with separable well use high temperature grease between the thermostatic bulb and well for better heat transfer i Cause T...

Page 11: ...11...

Page 12: ...Seller warrants the goods purchased hereunder with the exception of membranes seals gaskets elastomer materials coatings and other wear parts or consumables all of which are not warranted except as o...

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