Datasheet: 
P631 HIGH STATIC DIFFERENTIAL PRESSURE GAUGE WITH CONTACTService intendedP631 to P635 series are designed to measure differential pressure from 5kPa to 1,5MPa at static pressure up to 25MPa and have electrical contact.
 p631 to P635 series are designed to control alarm for differential pressure, providing right time to replace air and sludge filter during the process.            
All features and specifications subject to change without notice, delivery subject to availability, correction of errors and omissions excepted.