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MANUALS (3)
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Product Highlights
Description
This Product Includes:
- (1) HM2: 2 Loop Stainless Steel Radiant Heat Manifold
- (4) PXLA050: 1/2" PEX to EK20 Loop Fitting Assembly
- Supply/return Shut-Off Valves w/ Temperature Wells
Specs
| Number of Outlets: | 2 |
|---|---|
| PEX Size: | 1/2" |
| Supply Size: | 1" |
| Supply Connection: | BSP |
| Loop Thread: | EK20 |
| Material: | Stainless Steel |
| Application: | Heating |
| Fitting System Compatibility: | PEX Compression |
| Tubing Compatibility: | PEX |
Contact
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Product Reviews
Most Liked Positive Review
Good price, good value.
Most Liked Negative Review
affordable, but mediocre quality
Easy install...great price.
FLOW CONTROL VALVES LOWEST QUALITY
after 3 years of service
Broke open after 3 months
affordable, but mediocre quality
Great Manifold for the price
Good price, good value.
looks great
Expensive but does the job
Beautiful Product
Product Q&A
83 QuestionsQ: Can the manifold be set up for supply and return lines to the right and drains to the left without taking it all apart?
Asked by Erik 14 years ago
Add your answer
Verified Reply- PexSupply StaffThe only way to do this would be to mount the manifold facing the wall or upside down. Note that if you mount it upside down, the flow meters will not be able to display accurate readings.
Q: Can I connect wirbo hepex to this manifold with an adapter?
Asked by Carst 14 years ago
Add your answer
Verified Reply- PexSupply StaffYes, you can. hePEX works with the EK20 compression fittings for Rifeng manifolds.
Q: can i connect to this manifold the 5/16 hepex used by quik trak ?
Asked by Erez 14 years ago
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Verified Reply- PexSupply StaffNo, Rifeng manifolds can only connect to 3/8", 1/2", and 5/8" tubing (although you could transition in-line between 5/16" and one of those sizes).
Q: Can Glycol be used with manifold?
Asked by Nick 14 years ago
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Verified Reply- PexSupply StaffYes, it can.
Q: hi, does adjusting the flow meters on the individual loop supply and return shut off the loop? i have a leak on a new install and want to isolate the loops?
Asked by kj 14 years ago
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Verified Reply- PexSupply StaffYou can use the flow meters on the supply manifold to cut off flow to a loop. Turning the included wrench counter-clockwise reduces flow.
It will isolate the supply but if you did not put isolation valves on the return you will need to close off the whole return manifold. What I did is put supply and return isolation valves on each zone just for that reason.
If you turn the adjustment to the close it does.
Yes, the flow meter can be closed completely as can the other valve.
Yes. Just tighten down the flow control knobs all the way and the loop will be shut off. I have a couple unused ports shut off this way.
Yes, I believe if u tighten flow control all the way down, no water flows thru that loop.
YES
Apparently on the older manifolds it did shut off the flow, however I just got off the phone with supplyhouse support and the new one's do not. :-( If I had known that they didn't shut off the loop I might have purchased a different manifold. I now believe I will need to place a valve on each loop so I can isolate individual loops for repair.
Q: I have a twelve loop manifold one of the glass flow meters started leaking on the top can I remove it or replace it. Without replacing the whole manifold?
Asked by Pat 14 years ago
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Verified Reply- PexSupply StaffYes, the replacement flow meters are part MP3720172.
Yes, you can replace just a flow meter. I actually just had one leak myself, and called to talk to a pex supply representative. They needed the model number of the manifold, and sent one out right away. it simply unscrews and the new one threads right back in. The replacement flow meter I received looks just a little different, but functions just fine, and fit perfectly. I think it may just be an updated model from the one I had.
Q: I'm thinking of using the Rifeng MA-ACT Thermal Actuator with this manifold on each loop. Can multiple actuators be wired to a single thermostat? For example, a 12 loop manifold, with 12 actuators, 4 actuators wired to a single thermostat creating 3 heating "zones" (1 per thermostat).
Asked by Robert 14 years ago
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Verified Reply- PexSupply StaffYou can do this. Just make sure that the control you use can handle 20 VAs worth of actuators for each zone and about 63 VA in total (each actuator is rated at 5 VA and thermostats usually use 1 VA each). If you want to use a four-wire actuator, please note that MP700 actautors are also compatible with Rifeng manifolds.
Hi You can wire the actuators in any combination you desire creating various heating zones
Q: If I flip the manifold so the manifold inlets are on the top, will the flow meter still function ?
Asked by dave 14 years ago
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In my experience, no. The flow meters only work if they are on the top. You can still adjust the flow, but will have no metering.
No the flow meter needs to be on the bottom for them to work! I had to do a couple of my zones this way and it really didn't make a difference for me, yea it's nice to see them and they look great but in the long run, I just wanted good constant heat which I got!
Depends on the make and model; generally no. I think PEX sells Reifing, or something like that, and I know these will not work inverted
No, the flow meters will not register correctly but everything else will perform as well as in the proper position.
Q: hello can you please tell me the weight and size of this item when boxed Thanks
Asked by john 14 years ago
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Verified Reply- PexSupply StaffThe box for the Rifeng 12-loop manifold measures approximately 34" x 15" and weighs 17 lbs.
Q: Will 3/8" tube connect to this manifold using 3/8" compression nuts?
Asked by Charlie 14 years ago
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Verified Reply- PexSupply StaffThe manifold included in this package works with 3/8" EK 20 fittings. We would recommend that you purchase the RHM04 manifold (rather than the 1/2" package) and eight MA-38P fittings separately.
The connection on the manifold will accept a compression fitting of a few sizes, but you will obviously need to buy the whole fitting not just the nut. Look for part "3/8 <http://www.pexsupply.com/Rifeng-MA-38P-3-8-PEX-to-EK20-Loop-Fitting-Assembl y> " PEX to EK20 Loop Fitting Assembly" on their web site (for a Rifeng manifold).