Hydronic accessories

Pre-insulated 1/2" PEX-a pipe

Download Submittal
Pre-insulated 1/2″ crossed-linked polyethylene (PEX-a) pipe with a three layer EVOH oxygen barrier. The pipe comes insulated with a tubular expanded polyethylene foam (EPE) 3/8″ (10 mm) thick covered with an extra layer of polyethylene film (PE) to protect the insulation during the installation. The pipe is available in 100 ft (31 m) boxed coils or in 2.4 m (approx 8 ft) straight lengths. The maximum temperature and pressure ratings of the tubing are in accordance to ASTM F876 and CSA B137.5. This pipe is specifically designed for radiant heating and cooling systems with insulation to prevent condensation.
Messana Pre Insulated PEX-A Straight Pipe

Technical specifications

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Model
Pre-insulated 1/2″ PEX-a pipe (available in 100ft coils or 8ft straight lengths)
 
Part number
Coil (100ft)
PEXA1/2-100I
Straight length (approx 8ft)
PEXA1/2-7.5I
 
Features
Approved for use with Messana Ray Magic radiant panels
EPE insulation with extra protective polyethylene film
High-pressure peroxide method for crosslinked polyethylene (PEX-a)
Three layer EVHO oxygen diffusion barrier to prevent oxygen to enter the hydronic system
Comply with the SDR-9 (Standard Dimension Ratio)
 

Size2 and weight

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Pipe
Nominal size 1/2″
 
OD
0.625″ (15.88 mm ± 0.1)
ID
0.485″ (12.45 mm)
Wall
0.07″ (1.78 mm min, 2.03 mm max)
D
13⁄8 (36 mm)
Ins
3⁄8 (10 mm)
Weight
0.1 lbs/ft
Messana Pre Insulated PEX-A Pipe Section
Messana Pre Insulated PEX-A Straight Pipe
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Coil
 
Lenght
100 ft (30.5 mm)
OD
29″ (74 cm)
ID
16″ (40 cm)
Weight
10 lbs (4.5 Kg)
Messana Pre Insulated PEX-A Coil
OD
ID
H
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Straight lenght
 
Lenght
7′ 10″ 1⁄2” (2.4 m)
Weight
0.8 lbs (4 Kg)
Messana Pre Insulated PEX-A Straight Pipe
L
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Valve adapter
VA 10 spacer ring (M30x1.5) (included with the product)
 
Material
Polyamide
 
Color and finishing
Light gray (RAL 7035)
Messana Pre Insulated PEX-A Straight Pipe

Outer PE protective film

EPE insulation

Printing with counter

1/2" PEX-a tubing

Wall thickness based on SDR-9

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Color
Natural color tubing with blue insulation PE protective film
 
Certifications
Meets or exceeds the requirements of ASTM F876/877, F1960 – CSA B137.5 – NSF 14, 61
 
Expansion ratio
1.1″ of linear expansion for 100ft of tubing at a 10° F temperature rise
 
Bending radius
Minimum recommended bending radius is 8 x OD: 5″ (128 mm)
 
Pressure drop
GPM
0.5
2
3
4
5
6
7
psi per 100 ft
0.51
1.70
5.30
11.0
18.4
27.4
39.1
 
Insulation
EPE Polyethylene foam 3/8″ (10 mm) in thickens in compliance with ASTM84. Additional outer PE protective layer
 
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Printing
PEX-a tubing (size 4 mm)
MESSANA RADIANT COOLING – TUBING PEX-A – EVOH OXYGEN BARRIER – ASTM F876/877, F1960 – CSA B137.5 – NSF 14, 61 – 100FT [mm/dd/yy] [hour] [line] [counter] [’]
 
Insulation (size 6 mm)
MESSANA RADIANT COOLING
 
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Packaging
Coil
Straight Length
Type:
Carton Box
Type:
Bag
WxDxH:
 
30 x 30 x 63⁄8 inches
(760x760x160 mm)
Height:
Weight:
7″ (18 cm)
16 lbs
Coils per box:
1
Straights per bag:
18
 
Type:
Pallet
WxDxH:
 
311⁄2 x 311⁄2 x 100 inches
(800x800x2450 mm)
Weight:
196 lbs (89Kg)
Box per pallet:
15
 
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Warranty
This pipe is an OEM product manufactured for Messana Inc. under its specifications. The original manufacturer guarantees its pipes against defective materials and manufacturing defects for 10 years. For more information read the PEX-a pipe warranty terms available online at messana.tech.
 
Notes
1. 
Size, weights and technical characteristics may vary without prior notice.
2. 
Measurements in inches are converted from mm and approximated to the nearest 1/8″ fraction.

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