|3 2190 01||Ball Valve - Heavy Type DN15|
|3 2190 02||Ball Valve - Heavy Type DN20|
|3 2190 03||Ball Valve - Heavy Type DN25|
|3 2190 04||Ball Valve - Heavy Type DN32|
|3 2190 05||Ball Valve - Heavy Type DN40|
|3 2190 06||Ball Valve - Heavy Type DN50|
The ball valves are installed as stop valves. Field of application are building services, such as in heating or chilled water plant in buildings. EPDM Sealing can be destroyed by organic hydrocarbons, which are occurring in natural gas or mineral oil. For this we recommend ball valves for natural gas.
HERZ recommends the use of standard thread sealants for the connection between the ball valve and pipe. The valve should always be fully opened or closed, not used in intermediate positions. The valves do not require any special maintenance. At least twice a year, the ball valves should be