Honeywell

Spring return action
Three position operation
Powerhead replaceable without draining down
Manual lever for filling/draining down
Quiet operation, minimal power consumption

Dual diaphragm temperature sensing element
Suitable for surface or switch box mounting
Heat anticipator for close temperature control
10 to 30C setpoint range
Change-over contact switching (cooling loads)

Motor open
Spring return action
Manual lever for filling & draining the system
Powerhead replaceable without draining down
Potential free end switch for electrical control of pump and/or boiler

Motor open
Spring return action
Manual lever for filling & draining the system
Powerhead replaceable without draining down
Potential free end switch for electrical control of pump and/or boiler

Bi-directional flow design
Can be mounted vertically or horizontally
Integrated radiator balancing insert
Easy grip TRV head with energy saving button that alerts user to economical setting for comfort
Liquid sensor provides consistent and long-lasting performance

Bi-directional flow design
Can be mounted vertically or horizontally
Integrated radiator balancing insert
Easy grip TRV head with energy saving button that alerts user to economical setting for comfort
Liquid sensor provides consistent and long-lasting performance