made of brass, nickel-plated
for water, compressed air and oil (not suitable for aggressive medium, e.g. steam)
including two identification plates (red "heating flow" and blue "heating return")
hard chrome-plated brass ball with PTFE gasket
full bore
female pipe thread
blow-out proof spindle
DN 15 - DN 40 with T-handle, DN 50 with lever grip
for any installation position and flow direction