For closed heating and cooling water systems - with threaded connections - from 35 l upright - diaphragm acc. to DIN EN 13831 - permissible operating temperature 70 °C. operating temperature 70 °C - for antifreeze additive up to 50 % - approval acc. to Directive on pressure equipment 97/23/EC - inlet pressure 1.5 bar - m Other technical features: - Pressure stage flange other- Ultimate pressure 6.00- Capacity 100.00l- With replaceable diaphragm No- With feet Yes- Nominal diameter expansion connection 1 inch (25)- Placement horizontal No- Placement vertical Yes- Outside pipe diameter expansion connection 33.70mm- Max. Medium temperature (continuous operation) 70.00.