![L91A1078 HYR Proportional Pressuretrol Controller, 10-300 PSI Operating Pressure Range, 12 PSI Pressure Differential, Single Potentiometer, 140 Ohms, Use with Steam, Air, Noncombustible Gas or other Non Corrosive Fluids, 1/4" NPT, Brass Bellows, 32 ... L91A1078 HYR Proportional Pressuretrol Controller, 10-300 PSI Operating Pressure Range, 12 PSI Pressure Differential, Single Potentiometer, 140 Ohms, Use with Steam, Air, Noncombustible Gas or other Non Corrosive Fluids, 1/4" NPT, Brass Bellows, 32 ...](https://s3.us-east-2.amazonaws.com/buildingcontrolsgroup.media/l/9/l91a1037_4.jpg)
L91A1078 HYR Proportional Pressuretrol Controller, 10-300 PSI Operating Pressure Range, 12 PSI Pressure Differential, Single Potentiometer, 140 Ohms, Use with Steam, Air, Noncombustible Gas or other Non Corrosive Fluids, 1/4" NPT, Brass Bellows, 32 ...
![PSI Control, el sistema de suministro ininterrumpido de energía para empresas de servicios públicos – SmartGrid Spain PSI Control, el sistema de suministro ininterrumpido de energía para empresas de servicios públicos – SmartGrid Spain](https://smartgridspain.org/web/wp-content/uploads/2016/08/PSI_Control.png)