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$424.26 each
In Stock
Get 5 Tue, Jul 7
Order by today, receive Tuesday
MANUALS (4)
This item replaces: 6636C5A
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Product Highlights
–
1"
150 MAX PSI
180°F Max Temp
Description
–
Series 668S1 TwistFlow pre-assembled distribution manifold for radiant panel systems
with built-in sight flow gauge/balancing valve
Note: This manifold requires 6 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 (6) 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 6 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 (6) 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: | 3 |
|---|---|
| Supply Size: | 1" |
| Max Pressure (PSI): | 150 |
| Max Temp (F): | 180°F |
| Media: | Water or Glycol up to 50% |
Contact
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Product Reviews
3.5 out of 4 reviews
75% would recommend this product
5 star
50%
4 star
0%
3 star
25%
2 star
0%
1 star
25%
Showing 1-4 of 4 reviews
leaking
I bought this manifold and 1" NPT by 1" pex fittings. I started to fill the system and the fittings leak where screwed into the manifold. Not sure if it's the fittings or the manifold however it's a disappointment and a lot of time and money spent. Yes the fittings are tight and have pipe dope on them.
Matt
Eldred, PA
8 years ago
Verified Buyer
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Ovtoroced nanifold
Needed a manifold to be able to adjust flow in a precise manner - probably should have made one and guesstimated and adjusted- because these things are way over priced. With that said this one appears to be the most durable of the ones on the site that use regular pen and includes the drain valve, an automatic air vent, and I bought it with the temperature gauges .
Andrew
Cdubirb of New York City
8 years ago
Verified Buyer
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great manifold
Super easy manifold to install and connect all tubing. Delivery as always fast.
dmsky
Staten Island
11 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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