Samson 44-7 Mounting And Operating Instructions

Also see for 44-4: Mounting and operating instructions

14 EB 2723 ENDesign and principle of operation3.1 Technical dataThe regulator's nameplate contains informa-tion on the regulator version (see sec-tion 2.1).Process medium and scope of applicationThe excess pressure valve and safety excesspressure valve are designed to maintain thepressure upstream of the regulator to the ad-justed set point especially in district heatingsystems and extended heating systems.Type 44-4, Type 44-7 and Type 44-8 aresuitable for controlling liquids and gases.− Max. permissible temperatures for gasesup to 80 °C− Air/nitrogen up to 150 °C 1)− Liquids up to 150 °CThe regulator is closed when relieved ofpressure. It opens when the upstream pres-sure rises above the adjusted set point.Type testThe Type 44-4 and Type 44-8 Regulatorshave been typetested as safety excess pres-sure valves (SEV) by the German TechnicalInspectorate (TÜV).The test mark is available on request.1) With seals made of FKMTemperature rangeThe Type 44-4, Type 44-7 and Type 44-8Regulators are designed for a temperaturerange from 0 to +150 °C.Leakage classAll regulators have the leakage class Iaccording to IEC 60534-4.Noise emissionSAMSON is unable to make general state-ments about noise emission as it depends onthe regulator version, plant facilities, processmedium and operating conditions.Risk of hearing loss or deafness due to loudnoise.Wear hearing protection when working nearthe regulator.Dimensions and weightsTable 4 provides a summary of the dimen-sions and weights of the Type 44-4, Type 44-7 and Type 44-8 Regulators. The lengths andheights in the dimensional drawings areshown on page 17 onwards.WARNING!