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Description
Hoffman Specialty Tempering Valves are designed to
control temperature in water mixing applications
such as radiant floor heating, domestic hot water
and industrial processing. They can also be used to divert
flow in cooling systems. Series 21 Valves can be used for
residential, industrial, commercial or institutional
applications.
Fast acting, corrosion resistant actuator
Solid filled thermostatic actuator exerts high operating
force and provides reliable service
Easy temperature adjustment
No special tools required
Cast brass body
Adjustable temperature ranges
Model 21 140-200°F (60-93°C)
Model 21H 100-200°F (38-93°C)
Model 21LT 100-140°F (38-60°C) Maximum pressure 125 psig (8.6 bar)
Maximum hot water supply temperature 235°F (113°C)
Model 21 provides wide temperature adjustment range for hot and cold water mixing in applications other than domestic hot water.
Model 21H provides widest temperature adjustment range for radiant heating applications where accurate temperature control is less critical.
Model 21LT provides the greatest accuracy of temperature control in mixing domestic water.
Model 21 140-200°F (60-93°C)
Model 21H 100-200°F (38-93°C)
Model 21LT 100-140°F (38-60°C)
Model 21 provides wide temperature adjustment range for hot and cold water mixing in applications other than domestic hot water.
Model 21H provides widest temperature adjustment range for radiant heating applications where accurate temperature control is less critical.
Model 21LT provides the greatest accuracy of temperature control in mixing domestic water.
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