Title: +038=320.103-SB005T_08-Energy Valve Reguleringsventil Belimo - Generelle merknader for prosjektering.pdf
Fluctuating differential pressures are compensated for automatically with pres- sure-independent characterised control valves and do not influence the flow. To ensure perfect function, the differential pressure must be within a defined range. Specifications regarding minimum and maximum differential pressure can be found in the respective data sheets.1. Determining volumetric flow V'max1. Determining volumetric flow V'maxIf the thermal output of a consumer and the associated differential temperature between the supply and return lines are known, then the following formula can be used to calculate the volumetric flow. The density and thermal capacity of the water are taken into account as constant values by a factor of 0.86.V'100 = 0.86 .Q100 ∆TV'100 : [m3/h] Q100 : [kW] : [k] ∆T2. Selecting the correct valve