mpo55© | DCS (jmn) | 2017.01 Los controles de presión diferencial de aceite MP 54 y MP 55 se utilizan o interruptores de seguridad para proteger presoresDanfoss MP 55 Differential Pressure Switch is used in refrerating systems with R717 and also systems with HCFC and non-flammable HFC refrerants. MP 55 Pressure Switch has a fixed