Applications, Specifi cations – Powers 595 Series 11 Self-Operating Temperature Regulators - Type DB & DS Double Seat, Balanced User Manual
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Heat Exchanger Application (Cooling)
#11 Indicating Regulator
Double Seat
REVERSE ACTING
HEAT EXCHANGER
From
Process
Pump
Bulb in Well
Cooled Liquid
Cold Water Supply
Cooling Water Discharge
Quench Tank Application (Heating)
#11 Regulator
Double Seat DS
DIRECT ACTING
Bulb in Well
Steam
(D) As the process fl uid temperature decreases toward or below
the desired set point, the temperature of the thermally respon-
sive fl uid decreases, causing the vapor pressure to decrease.
This contracts the bellows and expands the spring to pull the
valve plug up towards its seat, to reduce or stop the fl ow of the
cooling medium.
Powers #11 Balanced Valve Regulators are used to automati-
cally control hot or cold fl uids at pressures up to 125 psi. The
self-actuated regulator can easily be installed in any convenient
location. Among its applications are: hot water systems, fuel oil
heaters, heat exchangers, air drying rooms, and many industrial
processes. Below are two typical applications.
Balanced valve regulators are well suited to heating applications
where the steam inlet pressure is under 125 psig and good shut-
off is not required.
Applications
■
Specifi cations
■
Valve Sizes
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