COMPOSITE MANIFOLD FOR UP TO 5/8″ PEX & PEX-AL-PEX TUBING, 2–12 LOOPS

MrPEX® Composite Radiant Manifold is made from a durable high performance glass filled plastic designed to withstand high temperature and pressure. The manifold exceeds the oxygen diffusion standard DIN 4726 and is completely corrosion resistant. The manifold has flow capacity of 15.4 GPM with adjustable flowmeters for flows up to 1.00 GPM per loop, and comes partially assembled as a complete kit. The branch Cv value is 1.35.

Kit includes:

  • A complete supply body with positive shut-off balancing flowmeters, thermometer, a Fill/Drain valve with Vent, and a blank end cap.
  • A complete return body with on/off valves for manual shut-off, thermometer, a Fill/Drain valve with Vent, and a blank end cap.
  • A set of mounting brackets
  • A set of 1″ NPT isolation union ball-valves.

Plastic cap on the return valve can be removed to accommodate valve actuator #5120700 or #5120701 (Adapter VA 90 part #5700090 is included). The branches have Eurokonus (EK 20) connections, and all MrPEX® EK 20 compression fitting assemblies (PEX to EK 20 or PEX-AL-PEX to EK 20) can be used to connect tubing up to 5/8″ to the manifold. Single, 2 loop, and 3 loop add-on supply and return manifold sections and other accessories are sold separately to allow for easy add-on.

Technical Data
Material Polysulfone & Nylon
Oxygen tightness Accordant to DIN 4726
Main connection 1″ NPT
Circuit connections EK 20 (G3/4 Eurokonus)
Max. Operating temperature and pressure Max 140 degrees F @ 87 psi
Max 158 degrees F @ 72 psi
Max 176 degrees F @ 58 psi
Max 194 degrees F @ 44 psi
Max. manifold flow 15.4 gpm
Branch Cv-value 1.35
Available sizes 2-12 loops
Accepted media Water, up to 50% propylene glycol
Manifold Dimensions
Loops 2 3 4 5 6
Part # 3810200 3810300 3810400 3810500 3810600
Distance A 7.87″ 9.84″ 11.81″ 13.78″ 15.75″
A+ Ball Valve 8.62″ 10.59″ 12.56″ 14.53″ 16.5″
Manifold Dimensions (continued)
Loops 7 8 9 10 11 12
Part # 3810700 3810800 3810900 3811000 3811100 3811200
Distance A 17.72″ 19.69″ 21.65″ 23.62″ 25.59″ 27.56″
A+ Ball Valve 18.47″ 20.44″ 22.4″ 24.37″ 26.34″ 28.31″