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Series 668S1 TwistFlow pre-assembled distribution manifold for radiant panel systems
with built-in sight flow gauge/balancing valve
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.
1-1/4" 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 (16) Loop Fitting Assemblies:
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
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:
Actuators
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.
This product is one of the few that is rated for 180-degree water, and is the only one I found that allows 1/2 and 3/4 taps from the manifold. these are the main reasons I bought it. I also wanted to reverse the feeds from right to left, and the instructions say this is possible. However, after I was stumped, I called tech support. They tried to help, but we discovered that it is not possible to reverse the feeds unless you modified or abandoned the mounting bracket. I modified the bracket, and it worked ok. Tech support will remedy the problem in the future. Overall, I am happy with the product.
Greg
Phila, Pa
2 years ago
Verified Buyer
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