Hi. Just been shown a job by an engineer friend who likes to mess around with things. He's fitted a pressure reducing valve to the supply pipe to a heated outbuilding. The mains pressure is 5 Bar, the valve has a gauge on it showing 2 Bar when taps are closed.
He helps me out, so I don't mind helping him out.
Open a tap and pressure gauge drops to zero after a few seconds and flow reduces to a dribble.
His suspicion is partial freezing of underground supply which I very much doubt. I'm suspecting the valve is at fault and he did eventually admit it was a used one I'm thinking it's probably stuck in some way.
Can anyone confirm that a pressure reducing valve would normally keep the pressure reasonably constant in normal flow conditions? I've never had to use one myself, so I lack the practical experience to judge whether this is normal or not.
He helps me out, so I don't mind helping him out.
Open a tap and pressure gauge drops to zero after a few seconds and flow reduces to a dribble.
His suspicion is partial freezing of underground supply which I very much doubt. I'm suspecting the valve is at fault and he did eventually admit it was a used one I'm thinking it's probably stuck in some way.
Can anyone confirm that a pressure reducing valve would normally keep the pressure reasonably constant in normal flow conditions? I've never had to use one myself, so I lack the practical experience to judge whether this is normal or not.