EUR (€)
Contemporary design
_x000d_ Easy setting
_x000d_ Frost protection as standard
_x000d_ 'A' rated for efficiency
_x000d_ The TRV4 Classic is 'A' rated for efficiency by the European valve manufacturers association making it one of the most energy efficient TRVs available.
_x000d_
_x000d_ Available since 1993 and still Britain's best selling range of Thermostatic Radiator Valves Drayton's TRVs set the standards for design, performance and quality. The range includes Lockshield and Pushfit packs to suit most domestic and commercial heating systems.
_x000d_
_x000d_ Technical
_x000d_ Temperature Setting range 10C - 30C
_x000d_ Maximum Sensor Temperature 50�C
_x000d_ Sensitivity 0.22mm/�C
_x000d_ Flow noise through valves
_x000d_ It is strongly recommended that the differential pressure across the thermostatic valves should not exceed 0.2 bar to avoid flow related noise. A differential pressure regulating device such as an automatic bypass valve should be used.
_x000d_
_x000d_ System Cleaning
_x000d_ To avoid damage to the valves and the heating system components, and the formation of scale deposit in the hot water heating system, the system should be flushed and a proprietary inhibitor needed.
_x000d_ Easy setting
_x000d_ Frost protection as standard
_x000d_ 'A' rated for efficiency
_x000d_ The TRV4 Classic is 'A' rated for efficiency by the European valve manufacturers association making it one of the most energy efficient TRVs available.
_x000d_
_x000d_ Available since 1993 and still Britain's best selling range of Thermostatic Radiator Valves Drayton's TRVs set the standards for design, performance and quality. The range includes Lockshield and Pushfit packs to suit most domestic and commercial heating systems.
_x000d_
_x000d_ Technical
_x000d_ Temperature Setting range 10C - 30C
_x000d_ Maximum Sensor Temperature 50�C
_x000d_ Sensitivity 0.22mm/�C
_x000d_ Flow noise through valves
_x000d_ It is strongly recommended that the differential pressure across the thermostatic valves should not exceed 0.2 bar to avoid flow related noise. A differential pressure regulating device such as an automatic bypass valve should be used.
_x000d_
_x000d_ System Cleaning
_x000d_ To avoid damage to the valves and the heating system components, and the formation of scale deposit in the hot water heating system, the system should be flushed and a proprietary inhibitor needed.
