NABIC 55N Test Valve
The NABIC 55N Test Valve allows the use of a single common vent pipe and permits continued operation of the system whilst maintenance is carried out on an individual unit. The NABIC 55N is a robust gunmetal stop valve, with stainless steel needle type valve and seat. A dust cap protects the test valve connection. Acts as an air vent, to facilitate draining and filling of the boiler. Protective cap for test valve connection. NABIC Valves now come with an Industry leading 5 Year Guarantee.