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Product Highlights
Description
Specs
| PEX Size: | 1/2" |
|---|---|
| Number of Outlets: | 6 |
| Supply Size: | 1" BSP |
| Supply Connection: | BSP Female Threaded |
| Loop Thread: | EK20 |
| Material: | Brass |
| Application: | Heating |
| Fitting System Compatibility: | PEX Compression |
| Tubing Compatibility: | PEX |
| Manifold Compatibility: | Mr. PEX Manifold |
Questions?
Product Reviews
great to install and setup of system
would purchase manifold again
Product Q&A
9 QuestionsQ: Define LOOP please
Asked by None 14 years ago
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Verified Reply- PexSupply StaffA loop (also known as a run or circuit) is a length of tubing that runs to and from a manifold. In in-floor systems, it's usually necessary to break piping runs into separate loops to keep head pressure at a reasonable level and make sure the water does not got cold during the run.
Simple it is for a length of oxygen barrier pex most often buried in a floor.. This one I believe allows you to equalize the flow without extra tools of multiple loops of radiant heat. I use them in garage floors most of the time and they work fine. Sent from my iPad
Q: Why do i need these manifolds. Cant i simply build my own on site. What do you mean when you talk about balancing and flow meters
Asked by Ted 14 years ago
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Verified Reply- PexSupply StaffYou can use valveless manifolds if your loops are all close the same length and part of the same zone, but this manifold gives you the ability to adjust flow between loops.
You can build your own from standard copper pipe and fittings if you like. The pre-built ones save time, and are more compact. You can use a regular ball valve for each outlet on your custom manifold, and you will need the appropriate fittings to attach the PEX tubing to each loop. The flow meters show the rate of water flow though each loop in the manifold, in Gallons per Minute. They aren't really needed, but are nice to have. As you adjust the balancing valves on each loop, you can see the flow rate change on the meters. The balancing valves are to adjust the flow of water through each loop individually. Depending on the installation, it may be desirable to have more water flow through some loops than others. In mine, we lower the flow for loops that heat bedrooms, so the bedrooms always stay a little cooler than other rooms in the same zone. Or, if some loops are much shorter than others, you can reduce the flow to them, while leaving the full flow to the longer loops. That will help even out the heat distribution. All part of balancing the system to your installation and personal tastes. "Why do i need these manifolds. Cant i simply build my own on site. What do you mean when you talk about balancing and flow meters".
Almost all systems with multiple zones and a manifold can benefit from balancing. Since a single pump is pushing the heated water through multiple zones, it is helpful to have some way of adjusting to provide more hot water to longer zones or zones that heat larger spaces than to smaller zones. That way, if multiple zones are simultaneously calling for heat, one of them won't get the lion's share of the heat and heat up real quickly, while the others take forever to get warm. Balancing valves on each branch of a manifold, along with flow meters to visually see how much hot water is flowing to each zone, are the easiest solution to this problem. You could probably make up the manifold with balancing valves and flow meters yourself, but it would probably cost more than a pre-made unit.
Q: I have a 6 loop brass pex manifold and this morning I awoke to find one of the loops is barely running any water thru it as the flow meter barely reads any flow rate....adjusting it does not change the flow meter yet is seems to be flowing a very minor amount...the other 5 loops work fine, flow meter changes when changing the adjustment yet this one loop doesn't seem to be working properly...the outgoing manifold with the meters on it is mounted upside down so the meters are pointing to the floor...the return manifold is also mounted upside down as all tubing enters both manifolds from the top side....is it possible there is some kind of blockage in this one loop right at the manifold? Thanks for your help Jeff
Asked by 14 years ago
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Verified Reply- PexSupply StaffIt is possible that there is some sort of a blockage, as flow meters that are mounted upside down can accumulate sediment. The flow meters can be replaced (part MP172S).
Q: Is it possible to install it upside down? Does the flowmetter will works correctly?
Asked by tidom78 15 years ago
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Verified Reply- PexSupply StaffYou can install the manifold upside down, but the flow meter itself will not function properly if it's upside down.
Q: I have the 3 loop manifold installed. What should be the balancing and the return values be set at. I have 3/4 tubing thru out the house.
Asked by 15 years ago
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Verified Reply- PexSupply StaffYour goal should be to get the flow meters to have equal readings. The settings needed to do this depend on the flow through each loop.
Q: I purchased this 3 years ago i'm just hooking it up now which manifold is supply and which is return dose it mater
Asked by worker 15 years ago
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Verified Reply- PexSupply StaffRed is supply and blue is return.
Q: What is your sku # for the inlet adapters to get to 1" copper sweat? Also,what sku # for inline ball valve shutoffs(straight)?
Asked by 15 years ago
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Verified Reply- PexSupply StaffThe supply/return adapter is MP131. The shut-off valves are MP135 or MP139.
Q: I had a heating contractor install one of these 4 loop manifolds a few years ago... today when I turned on the system, I had water leaking from the top of one of the control valves. Turning off the system, I see that the brass male thread has completely separated from the manifold (that is, threads are in the nut as threaded shaft has broken from the manifold body). Seems like the brass is very thin at this thread. What is the warranty on replacement in this case? System has been untouched since installation?
Asked by Grant 16 years ago
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Verified Reply- PexSupply StaffThe manifolds have a one year warranty.
Q: are the inputs to this 1 "....... I did not see any thing on the specs?
Asked by golf 16 years ago
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Verified Reply- PexSupply StaffThe inlets on this unit are EK32 which is a size that is specific to the manifold. In order to adapt to your supply lines, you need supply adapters. These can be found here: http://www.pexsupply.com/Mr-PEX-Manifolds-Adapters-1199000