Controls, Valves & TRVs

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

For V4043 +V4044+V4073

Unique and simple adjustment mechanism Wide differential pressure range 0.1 to 0.6 bar 22mm compression fittings for ease of installation Ensures constant flow through boiler Reduces system noise and maintains an even system pressure

Ideal for general applications Suitable for use on uninsulated and foam lagged cylinders Surface mounted Double insulated Cylinder strap & hooks

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

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)

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

Bi-directional flow design Integrated radiator balancing insert Can be mounted vertically or horizontally Positive shut off Approved to EN215

Integral stop valve. Enables seat to be cleaned without draining the system Vacuum break ensures air collection Simple service and cleaning 1/8" and 3/8" BSP connections 1/8" to 1/2" adaptor

OEM style thermocouple 900mm will fit Honeywell Q309A type thermocouple applications. Manufactured to be dimensionally equivalent to the original thermocouple but employs a modern tip structure to give faster hold-in and drop-out times. Manufactured in Europe by a world leading gas safety company.