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$541.16 each
In Stock
Get 8 Tomorrow, Jun 26
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MANUALS (4)
This item replaces: 6636D5A
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Easy Returns No restocking fee for 90 days
Product Highlights
–
1"
150 MAX PSI
180°F Max Temp
Description
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Series 668S1 TwistFlow pre-assembled distribution manifold for radiant panel systems
with built-in sight flow gauge/balancing valve
Note: This manifold requires 8 Loop Fitting Assemblies (please see below).
Image may not be actual representation of item.
Distribution manifolds for radiant panel systems are used to optimally distribute the heating fluid in floor heating system circuits and ultimately improve the control of heat emission from the panels. The manifolds ensure that the flow to each circuit is regulated precisely and also control the shut-off, venting and automatic removal of air from the system.
This manifold requires (8) Loop Fitting Assemblies:
PEX Loop Fitting Assemblies Options
680507: 5/16" PEX Loop Fitting Assembly
This fitting will connect 5/16" PEX to a loop of the Manifold without requiring the use of a PEX Tool. 680503A: 3/8" PEX Loop Fitting Assembly
This fitting will connect 3/8" PEX to a loop of the Manifold without requiring the use of a PEX Tool. 680504A: 1/2" PEX Loop Fitting Assembly
This fitting will connect 1/2" PEX to a loop of the Manifold without requiring the use of a PEX Tool. 680555A: 5/8" PEX Loop Fitting Assembly
This fitting will connect 5/8" PEX to a loop of the Manifold without requiring the use of a PEX Tool. 680505A: 3/4" PEX Loop Fitting Assembly
This fitting will connect 3/4" PEX to a loop of the Manifold without requiring the use of a PEX Tool. PEX-AL-PEX Loop Fitting Assemblies Options
682530A: 3/8" PEX-AL-PEX Loop Fitting Assembly
This fitting will connect 3/8" PEX-AL-PEX to a loop of the Manifold without requiring the use of a PEX Tool. 682540A: 1/2" PEX-AL-PEX Loop Fitting Assembly
This fitting will connect 1/2" PEX-AL-PEX to a loop of the Manifold without requiring the use of a PEX Tool. 682545A: 5/8" PEX-AL-PEX Loop Fitting Assembly
This fitting will connect 5/8" PEX-AL-PEX to a loop of the Manifold without requiring the use of a PEX Tool. 682550A: 3/4" PEX-AL-PEX Loop Fitting Assembly
This fitting will connect 3/4" PEX-AL-PEX to a loop of the Manifold without requiring the use of a PEX Tool.
Optional Installation Accessories:
Loop End Cap
If you want to use your manifold to heat multiple zones, you can purchase return side actuators that work along side thermostats. The actuators act as zone valves to allow you to use one manifold to control the temperature in different rooms independently.
Note: This manifold requires 8 Loop Fitting Assemblies (please see below).
Image may not be actual representation of item.
Distribution manifolds for radiant panel systems are used to optimally distribute the heating fluid in floor heating system circuits and ultimately improve the control of heat emission from the panels. The manifolds ensure that the flow to each circuit is regulated precisely and also control the shut-off, venting and automatic removal of air from the system.
- 1" NPT inlet ball valves
- Maximum working pressure: 150 psi (10.3 bar)
- Maximum temperature: 180°F (82°C)
- Maximum peak temperature: 200°F (93°C)
- Loop Cv: 1.23 (combined supply & return ports)
- Outlet center distance: 2 inches
This manifold requires (8) Loop Fitting Assemblies:
PEX Loop Fitting Assemblies Options
This fitting will connect 5/16" PEX to a loop of the Manifold without requiring the use of a PEX Tool.
This fitting will connect 3/8" PEX to a loop of the Manifold without requiring the use of a PEX Tool.
This fitting will connect 1/2" PEX to a loop of the Manifold without requiring the use of a PEX Tool.
This fitting will connect 5/8" PEX to a loop of the Manifold without requiring the use of a PEX Tool.
This fitting will connect 3/4" PEX to a loop of the Manifold without requiring the use of a PEX Tool. PEX-AL-PEX Loop Fitting Assemblies Options
This fitting will connect 3/8" PEX-AL-PEX to a loop of the Manifold without requiring the use of a PEX Tool.
This fitting will connect 1/2" PEX-AL-PEX to a loop of the Manifold without requiring the use of a PEX Tool.
This fitting will connect 5/8" PEX-AL-PEX to a loop of the Manifold without requiring the use of a PEX Tool.
This fitting will connect 3/4" PEX-AL-PEX to a loop of the Manifold without requiring the use of a PEX Tool.
Optional Installation Accessories:
Loop End Cap
- 386500: Manifold Loop End Cap
These allow you to cap off a loop of the manifold if it will not be used.
If you want to use your manifold to heat multiple zones, you can purchase return side actuators that work along side thermostats. The actuators act as zone valves to allow you to use one manifold to control the temperature in different rooms independently.
Specs
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| Number of Loops: | 4 |
|---|---|
| Supply Size: | 1" |
| Max Pressure (PSI): | 150 |
| Max Temp (F): | 180°F |
| Media: | Water or Glycol up to 50% |
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Product Reviews
5 out of 3 reviews
100% would recommend this product
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Showing 1-3 of 3 reviews
nicely forged
offset perfectly. still adjustable fittings for pex were superb.sero complaint . you get what you pay for...
no nothing Ron
in the cellar
6 years ago
Verified Buyer
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Great Quality
I found it worth the price for a quality manifold. I have had it working well for some time and adjusted and installed easily.
TM
Michigan
8 years ago
Verified Buyer
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Just what I had expected
Replaced existing manifold with Caleffi, was totally satisfied with ease of installation as well as operation.
DJ
Muncie, IN
12 years ago
Verified Buyer
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Product Q&A
2 Questions2 Questions
Q: Hi, can this be mounted with the return on top and supply on the bottom- also with the supply feed coming from the right and not the left as pictured? Looking to replace an existing manifold pair that is plumbed that way. Thanks.
Asked by Bucky 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffYes, you should be able to flip and swap them without a problem.
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Q: Can this manifold be mounted upside down and still have the flow gauges work properly? I want to place this in the basement for the floor above. Can I do this or do I have to run the PEX piping down then U-turn back up?
Asked by Paul 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffYes, Caleffi flow meters will work upside down.
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