Air Relief Valve for Central Vacuum Systems Q&A

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How Does it Work?

i was just wondering what happens when the unit is turned off or clog is removed. does it snap shut or is it permanently opened, where you would have to get another. thanks- Evan Bell- Kingman

Answer:

Thanks for the question. It is spring loaded, and adjustable. When the pressure is just right it begins to open and as the pressure lowers is closes back up. No need to replace it, it works over and over again.

Use with Hide-a-Hose

Hi, does one use a relief valve with a hide-a-hose system? We'll need enough suction for the hose to be sucked back up into the PVC pipes. We will also have a Vac Pan, and I could install the air relief valve under the kitchen cabinets, but don't know if I should. Lucy, Sunnyvale, CA

Answer:

Lucy, a relief valve is always a good idea in case the vacuum is ran sealed. The motors will be protected. But when a Hide-a-Hose is being used it may not be a good idea. The relief valve will open and the hose will not be suctioned in as fast or completely.Therefore you should not use a relief with a Hide-a-Hose. Double check with them though at www.hideahose.biz

Glue or Not

I just receeived my Air Relief Valve for Central Vacuum Systems Part#5613ARV and 90 sweep tee. Do I glue the sweep valve into the tee or insert it without glue? George, East Greenbush NY

Answer:

Hi George, please do not glue it. Be sure the sweep of the tee is sweeping toward the vacuum unit. Glue the tee to the pipe but not the relief to the tee. Thanks for asking.

Fit into 2" Piping?

Hi I am paying more attention to my central vacuum system after having lived in this house for 8 years. My system is now 20 years old. Near the vacuum unit on the vacuum pvc piping there is a pipe that ends covered with plastic and held by tape where there probably should be a relief valve. If I purchase the featured relief valve, would it insert into the 2" pipe or do I have to glue it and or get an adapter? Thanks Nick Saugus, MA

Answer:

Hi Nick, the relief valve goes into a fitting that goes in the 2 OD pipe. So you should get a fitting such as one of these https://builtinvacuum.com/retail/shopretail.php?part_no=507,502

Exhaust Used for Blowing Out Pipes?

I'm going to install a central vacuum system at work. I have heard of people using the exhaust port to blow out blockages from the suction line. I was wondering if there was a system that used 90 degree ball valves and cross current pipes that would do the same thing. Essentially turning a valve from the exhaust port to divert air to the suction line (with the suction line also switched over to an open port right off of the intake port). Thank-you for your time. Adrian Byers

Answer:

Hello Adrian, though clever, that is a weak way of cleaning the pipes out. The exhaust chamber is usually not air tight and you'd lose incredibly valuable vacuum strength. Also, if the pipes are blown into then some units will pop . They are made for suction, not expansion. What we recommend if there is a clog is either removing the vacuum from the wall and bringing it inside to suction the lines or use a long hose to connect to the unit and bring inside to suction the lines (remove the intake line from the vacuum unit first for air flow).

VacPan Shut-off Relief?

Just finished installing a central vac; 3 weekends crawling around under the house. However, it works better than we thought it would. We have a vac pan, which is very convenient. But when you turn it off it shuts off the air supply, and there is a fluttering sound in the system (unlike turning off a wand, which still offers air to the motor through the inlet port\wand.) Can i assume that this would solve the problem? Thanks!

Answer:

Hello, that is an excellent idea and should work well for that issue. Put this inline near the vacuum unit, or anywhere, using a three way connector.

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