Vac pump muffler

[Alex Davies]

Anyone out there doing anything for noise reduction on old dairy vac pumps - (de laval 77). I'm thinking of building an insulated box for it, but then worried about the box getting too hot for good performance. Otherwise I considered trying to get my hands on a muffler I could install on the exhaust pipe, but not sure if that would cause performance problems either...

Bugger's just outside S.S and loud...

Thanks

[BAP]

Do you have an oil reclaimer on it? Those help muffle it some. I also have added a truck muffler to the exhaust pipe after the oil reclaimer when the noise was bothering neighbors. . Just go to auto parts store and get one that will fit the pipe and clamp it on. If doesn’t need to be a fancy one.

[Alex Davies]

Right. Thanks. Got a reclaimer on it, but still loud... Yeah, neighbours don't love it... And doens't make for very fun boiling ambiance.

I'll try the truck muffler. I was thinking of trying something like this, but wasn't sure if it would create back pressure and reduce performance of the pump.

Thanks