For closed heating and cooling water systems with threaded connections, suitable for tanks starting from 35 liters. It features a diaphragm in accordance with DIN EN 13831 and has a permanent operating temperature of 70 °C. The system can accommodate antifreeze additives up to 50% and is approved according to the Directive on Pressure Equipment 97/23/EC. The inlet pressure is 1.5 bar.

Other technical features include:

• Pressure stage flange: other
• Ultimate pressure: 6.00
• Capacity: 140.00 liters
• Replaceable diaphragm: No
• Feet: Yes
• Nominal diameter of expansion connection: 1 inch (25)
• Placement: vertical
• Pipe outer diameter of expansion connection: 33.70 mm
• Maximum medium temperature (continuous operation): 70.00 °C.