What is a non-return Valve?

The primary capacity of a non-return valve (NRV), also called stop or check valve, is to permit steam stream one way, and naturally forestall reverse. All in all, they keep steam from streaming back to the primary header of the kettle, or back to a heater that has fizzled or is disconnected.  A NRV canContinue reading “What is a non-return Valve?”