For closed heating and cooling water systems with threaded connections, this product has a capacity of 35 liters upright and features a diaphragm according to DIN EN 13831. The permissible operating temperature is 70 °C, and it can accommodate antifreeze additive up to 50%. It is approved according to the Directive on Pressure Equipment 97/23/EC, with an inlet pressure of 1.5 bar.

Other technical features include:

• Pressure stage: Flange other
• Ultimate pressure: 6.00 bar
• Capacity: 80.00 liters
• Replaceable diaphragm: No
• Feet included: Yes
• Nominal diameter of expansion connection: 1 inch (25 mm)
• Placement: Vertical
• Outside pipe diameter of expansion connection: 33.70 mm
• Maximum medium temperature (continuous operation): 70.00 °C.