Recent content by thermoman1

  1. T

    Drayton TRV4 numbers to temperatures

    i have removed one of these valves from an unused radiator. i cant comment on the higher temperatures but on the low end the numbers on the dial correspond to: "1" opens at 15degC halfway between "1" and the snowflake opens at 13degC the snowflake opens at and below 11.5degC my problem...
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