Hydronic Components

11⁄4" Modular Manifold

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The Messana 11⁄4" modular manifold series was designed specifically for hydronic cooling and heating applications. It is based on fit-snap interlocking modules that can be used to build a manifold in various sizes (from 2 to 12 loops). The supply and return mains are assembled separately and then connected together through adjustable mounting brackets.

Each main is composed of an NPT (or ISO) female inlet module, followed by a fill/drain module with automatic air bleed valve, temperature probe, and a sequence of 2-loop and/or 3-loop modules terminated with an end module. The supply ports feature a flow gauge and control valve (red ring) to adjust the flow on each loop individually.

The return ports come with a manual on/off valve with a removable blue knob that can be replaced with a thermal actuator.
Messana Modular Manifold

Technical specifications1

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Model
11⁄4” modular manifold for hydronic cooling and heating
 
Part number
CPRMnn32 where nn indicates the number of loops (02, 03, .. ,12).
Example: CPRM0732 for a 7-loop
 
Features
Fit-snap mechanism, assemble with just a click (no tools required)
Suitable to be vertically or horizontally mounted with inlets either on the left or right side
Made of high performance plastic (polyamide) with insulation pads, ideal for cooling applications
Pipes can be running up or down. Can also be assembled with modules facing different directions (up or down)
Can be easily expanded for future installations up to 12 loops
Mounting brackets designed to offset the mains from the surface for easy access and tubing installation
 

Size and weight

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# of loops
H x W x D inches
(mm)
Weight
2
16 x 91⁄8 x 41⁄2
(405 x 233 x 112)
3.57 lbs (1.62 Kg)
3
16 x 11 x 41⁄2
(405 x 280 x 112)
4.26 lbs (1.93 Kg)
4
16 x 127⁄8 x 41⁄2
(405 x 327 x 112)
4.96 lbs (2.25 Kg)
5
16 x 143⁄4 x 41⁄2
(405 x 375 x 112)
5.65 lbs (2.56 Kg)
6
16 x 183⁄4 x 41⁄2
(405 x 468 x 112)
6.84 lbs (3.10 Kg)
7
16 x 201⁄4 x 41⁄2
(405 x 515 x 112)
7.54 lbs (3.42 Kg)
8
16 x 221⁄8 x 41⁄2
(405 x 562 x 112)
8.23 lbs (3.73 Kg)
9
16 x 24 x 41⁄2
(405 x 610 x 112)
8.92 lbs (4.04 Kg)
10
16 x 257⁄8 x 41⁄2
(405 x 657 x 112)
9.62 lbs (4.36 Kg)
11
16 x 273⁄4 x 41⁄2
(405 x 705 x 112)
10.30 lbs (4.67 Kg)
12
16 x 295⁄8 x 41⁄2
(405 x 753 x 112)
10.99 lbs (4.99 Kg)
Messana Modular Manifold

1 1⁄4 NPT
(or M32)
female inlet

Presblock 1 1⁄4"
NPT female ball valves
(S+R)

1/2" PEX to EK20
fitting adapter

Eurokonus EK20 adapter

3-loop supply
main module

Intermediate module

2-loop supply main module

2-loop supply main module

Adjustable
mounting
bracket

7-loop return main (3 + Int + 2 + 2)

End module

On/off valve with removable blue knob

Thermal actuator

VA10 actuator adapter ring

Fill/drain valve with
hose connection

Additional adjustable mounting bracket

Flow gauge

Flow control valve
with red ring

Temperature
probe (C and F)

Automatic air bleed valve

Shown 7-loop with NPT inlet and EK20 ports (CPRM0732)
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Applications
Hydronic radiant floor and ceiling for heating and cooling
 
Performances
Max water flow:
1.32 gpm [5 l/min] per loop (max 12 loops)
Fluid accepted:
Water or propylene glycol solutions (% glycol max 50%)2
Working temperature range:
40 – 130 °F [5 – 55 °C]
Max temperature:
200 °F @ 40 psi [90 °C @ 3 bar]
Operating pressure:
15 – 60 psi [1-4 bar]
Max test pressure:
145 psi (10 bar) with water <86F
100 psi (7 bar) with air
Burst pressure:
> 320 psi [22 bar] @ 70 °F [21 °C]
> 220 psi [15 bar] @ 50 °C [50 °C]
 
Supply port with balancing flow control valve
(red ring)
Max torque to adjust the flow-rate:
1 Nm (use the red flow control valve)
Kv flow coefficient:
2.04 (fully open)
0.26 @ 1.05 [4 l/min]
0.13 @ 0.53 gpm [2 l/min]
0.30 @ 1.32 gpm [5 l/min]
0.20 @ 0.79 gpm [3 l/min]
0.07 @ 0.26 gpm [1 l/min]
Flow gauge range:
0 to 1.32 gpm [0 to 5 l/min] with marks every 0.25 gpm [1 l/min]
 
Return port with on/off valve (removable blue knob) and thermal actuator insert
Kv flow coefficient:
2.8 (fully open)
Stroke of inox pin:
2 mm
Thermal actuator adapter:
VA 10 (M30x1.5)
 
Material and color
PA66 (black manifold body and blue knobs), EPE (insulations pads), brass (metal inlets and EK20), PA12 (transparent elements), AISI (springs), EPDM (O-rings), POM (valve inserts and red rings).
 
Notes
1. 
Size, weights and technical characteristics may vary without prior notice.
2. 
Only propylene glycol, never use ethylene glycol.

Interlocking modular system with quick snap-fit connection

Messana Modular Manifold
1

Each female module comes with a dual O-ring.
Before connecting make sure the double O-ring
is properly seated inside the female adapter.

2

Always leave the black cap of the air
bleed valve open to let the air out.

3

Adjust the loop flow
by turning the red ring
(clockwise to close).

4

Loop can be manually closed
by turning the blue knob clockwise.

5

Thermal actuators are installed
on the return modules by removing
the blue knobs and connecting
the AV10 adapter rings on the M30x1.5 outlets.

6

To install the Eurokonus EK20,
insert it into the push-in male outlet
and secure it by pushing the fixing clip.

7

Snap-fit mechanism with just a click!

7

Snap-fit mechanism with just a click!

Shown 7-loop with NPT inlet and EK20 ports (CPRM0732)
58TECM3/4 Inch Installation
6
Messana Modular Manifold Connection
7
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1. 
Each female module comes with a dual O-ring.
Before connecting make sure the double O-ring is properly seated inside the female adapter.
2. 
Always leave the black cap of the air bleed valve open to let the air out.
3. 
Adjust the loop flow by turning the red ring (clockwise to close).
4. 
Loop can be manually closed by turning the blue knob clockwise.
5. 
Thermal actuators are installed on the return modules by removing the blue knobs and connecting the AV10 adapter rings on the M30x1.5 outlets.
6. 
To install the Eurokonus EK20, insert it into the push-in male outlet and secure it by pushing the fixing clip.
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7. 
Snap-fit mechanism with just a click!

Insert the module on the male side into the following module on the female side until you hear a click.

The male buckle clip
B
is secured into the female clip
A
Modules can be disconnected by lifting the clip
A
using a flat screw driver.

Components

Supply and return common modules
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Manifold female inlet module with flat gasket
RT4-M-F11/4N
1-1/4″ NPT female inlet module with flat gasket
RT4-M-F11/4N
1-1/4″ ISO M32 female inlet module with flat gasket
Accept mounting bracket
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RT3-M-F11/4-A Manifold fill/drain 1-1/4" module with automatic air bleed valve and temp probe
RT3-M-F11/4-A
Fill/drain 1-1/4″ module with automatic air bleed valve with temp probe (C and F). Suitable for both supply and return mains
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RT-M Manifold intermediate module
RT-M
Intermediate module to hold an additional mounting bracket. Use two (supply and return mains) for each manifold with 6 or more loops
Accept mounting bracket
 

RTF1/2-M-T 1-1/4 Manifold end module
RTF1/2-M-T
1-1/4″ manifold end module
Accept mounting bracket
Supply only modules
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RTRGMDPU02-PB with 58TECM3-4
RTRGMDEU02/PB1*
2-loop supply 1-1/4″ module with flow meter and EK20 outlets
RTRGMDEU02/PB1
2-loop supply 1-1/4″ module with flow meter and push-in male outlets
* As shown in the picture (EK20 adapter pre-mounted)
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RTRGMDPU03-PB with 58TECM3/4
RTRGMDEU03/PB1*
3-loop supply 1-1/4″ module with flow meter and EK20 outlets
RTRGMDEU03/PB1
3-loop supply 1-1/4″ module with flow meter and push-in male outlets
* As shown in the picture (EK20 adapter pre-mounted)
Return only modules
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RTEV-PU-02-PB with 58TECM3/4
RTRGMDEU02/PB1*
2-loop supply 1-1/4″ module with flow meter and EK20 outlets
RTRGMDEU02/PB1
2-loop supply 1-1/4″ module with flow meter and push-in male outlets
* As shown in the picture (EK20 adapter pre-mounted)
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RTEV-PU-03-PB with 58TECM3/4
RTRGMDEU03/PB1*
3-loop supply 1-1/4″ module with flow meter and EK20 outlets
RTRGMDEU03/PB1
3-loop supply 1-1/4″ module with flow meter and push-in male outlets
* As shown in the picture (EK20 adapter pre-mounted)
Accessories
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Adjustable mounting bracket (200 ÷ 250 mm wheelbase) with offset design
GTE1-ST-TL3A
Adjustable mounting bracket (200 ÷ 250 mm wheelbase) with offset design
GTE1-ST-TL3AX2
Set of two adjustable mounting bracket (200 ÷ 250 mm wheelbase) with offset design
Order a set of two per each manifold and an extra bracket for 6 or more loops
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Euroconus EK20 adapter
58TECM3/4
Euroconus EK20 adapter
1/2"
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1/2" PeX to EK20 (Euroconus) loop fitting adapter
CP1/2EK20
1/2″ PEX to EK20 (Euroconus) loop fitting adapter
 

Pre-insulated 1/2" PEX tubing with Oxygen-barrier and 3/8" (9mm) insulation.
PEXA1/2-100I
Pre-insulated 1/2″ PEX-A tubing with Oxygen-barrier and 3/8″ (9mm) insulation (100 ft coil)
16x1.5
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16x1.5mm PEX to EK20 (Euroconus) loop fitting adapter (made in Italy)
CP16EK20
1/2″ PEX to EK20 (Euroconus) loop fitting adapter
 

16x1.5mm PEX telescopic push-in fitting with release bottom
RPLPUTERRB16
16×1.5 PEX telescopic push-in fitting with release bottom
 

Pre-insulated 16x1.5mm PEX tubing with Oxygen-barrier and 3/8" (9mm) insulation.
PEX1630I
Pre-insulated 16mm x 1.5 PEX with Oxygen-barrier and 3/8″ (9mm) insulation (100 ft coil)
5/8"
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1/2" PeX to EK20 (Euroconus) loop fitting adapter
CP1/2EK20
1/2″ PEX to EK20 (Euroconus) loop fitting adapter
 

5/8" PEX tubing
PEXA1/2-100I
5/8″ PEX (supplied by others)
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Messana Thermal Actuator
CP1/2EK20
Thermal actuator 24V/1W, Normally Closed (NC), 2-wire 5ft cable with manifold VA10 ring adapter

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