Brochure

124
Selection Guides
Hoffman Specialty
®
Selection Guidelines
To
Steam
Trap
Self-Contained
Temperature Pilot
Spring
Pilot
Feed
Line
Feedback
Line
Main Valve
Steam
Inlet
Thermo
Bulb
Y Strainer
Temperature Control for Tank Farm Fuel Oil Storage
Pressure and Temperature Control for Unit Heaters
Main Valve
Spring
Pilot
Feed
Line
Feedback
Line
Room
Thermostat
Steam
Inlet
To
Steam
Trap
To
Steam
Trap
To
Steam
Trap
Aquastat
Solenoid
Pilot
Unit
Heater
Y Strainer
Description: A Series 2000 Main valve with a Self-Contained Temperature pilot
and a Spring pressure pilot are used to control the temperature in a oil storage tank.
Description: Unit heaters will radiate approximately 7% of their capacity when the fan is off, use of a
solenoid pilot controlled by a room thermostat eliminates energy waste when heat is not required.
Series 2000 Typical Applications (continued)