This product data sheet provides specifications for FlowMaxx IDL pre-insulated stainless steel piping for solar heating systems. It includes: 1) Details on 5 pipe models varying in diameter, length, pressure rating, and insulation thickness. 2) Descriptions of the stainless steel and insulation materials, thickness, bending radius, and maximum working pressures. 3) Graphs showing the lineset's pressure loss and heat loss at varying flow rates and temperatures. 4) Information on available male and female pipe fittings and quick-connect fitting installation.

1. Product Data Sheet
FlowMaxx IDL Lineset
SunMaxx Solar
5042 - 5160 NY 206
Bainbridge, NY 13733
P: 1.877.786.6299
F: 1.800.786.0329
www.SunMaxxSolar.com
Specifications subject to change without noticeCopyright 2015 SunMaxx Solar | All Rights Reserved
Model
Diameter
(in)
Length
(ft)
PN @ 482O
F
(psi)
Insulation
(in)
Max Operating Pres-
sure @ 68O
F (psi)
FlowMaxx-IDL-58IN-19MM-82FT 5/8 82 159 3/4 145
FlowMaxx-IDL-34IN-19MM-82FT 3/4 82 100 3/4 145
FlowMaxx-IDL-34IN-19MM-160FT 3/4 160 100 3/4 145
FlowMaxx-IDL-1IN-19MM-82FT 1 82 100 3/4 232
FlowMaxx-IDL-1IN-19MM-160FT 1 160 100 3/4 232
• Easy, leak-free installation - no torch needed
• Flow and return markings for easy use
• Meets the highest requirements for modern solar heating
systems
• Pre-insulated and flexible stainless steel piping
• No special tools needed for installation or maintenance
• CFC and HCFC free insulation according to DIN 1988
Parts 2 and 7
• DIN EN 13823 & EN ISO 11925-2 fire resistant EPDM
rubber
Technical Features
Technical Specifications - Steel Pipe
Material
Flexible, corrugated stain-
less steel
Stainless Steel Grade 316L
Bending Radius
5/8” Models: 2.3”
3/4” Models: 2.8”
1” Models: 3.4”
Internal Diameter
5/8” Models: 0.64”
3/4” Models: 0.80”
1” Models: 1.0”
External Diameter
5/8” Models: 0.85”
3/4” Models: 1.1”
1” Models: 1.3”
Wall Thickness
5/8” Models: 0.007”
3/4” Models: 0.007”
1” Models: 0.008”
Max Working Pressure
(@ 68O
F)
5/8” Models: 145 psi
3/4” Models: 145 psi
1” Models: 232 psi
Max Working Pressure
(@ 302O
F)
5/8” Models: 97 psi
3/4” Models: 97 psi
1” Models: 58 psi
Burst Pressure
4x Max Operating
Pressure
Fluid Capacity
5/8” - 0.0143 gal/ft
3/4” - 0.0362 gal/ft
1” - 0.0519 gal/ft
Technical Specifications - Insulation
Material
Closed-cell, synthetic
high-temperature rubber
Thickness 1/2” / 3/4”
R-Value (@ 105O
F) 4.0 / 5.0
Temperature Range -40O
F to 302O
F
Total Dimensions
5/8” Models: 4.7” x 2.4”
3/4” Models: 5.2” x 2.6”
1” Models: 5.7” x 2.9”

2. Pressure Loss Graph
Product Data Sheet
FlowMaxx IDL Lineset
SunMaxx Solar
5042 - 5160 NY 206
Bainbridge, NY 13733
P: 1.877.786.6299
F: 1.800.786.0329
www.SunMaxxSolar.com
Specifications subject to change without noticeCopyright 2015 SunMaxx Solar | All Rights Reserved

3. Product Data Sheet
FlowMaxx IDL Lineset
SunMaxx Solar
5042 - 5160 NY 206
Bainbridge, NY 13733
P: 1.877.786.6299
F: 1.800.786.0329
www.SunMaxxSolar.com
Specifications subject to change without noticeCopyright 2015 SunMaxx Solar | All Rights Reserved
Heat Loss Graph
Parameters
• Lambda Insulation = 0.291 BTU-in/hr-ft²-°F
• Lambda Steel Pipe = 146 BTU-in/hr-ft²-°F
• Wind Speed = 2.2 mph
• Outside Temperature = 50O
F
• VL Flow Temperature
• RL Return Temperature
Calculation Method
Media Temperature Tv = (VL + RL)/2
delta T = Tv - To
Heat Loss = 2 x Q (delta T)

4. SunMaxx Solar
5042 - 5160 NY 206
Bainbridge, NY 13733
P: 1.877.786.6299
F: 1.800.786.0329
www.SunMaxxSolar.com
Specifications subject to change without noticeCopyright 2015 SunMaxx Solar | All Rights Reserved
Product Data Sheet
FlowMaxx IDL Lineset
Male Fittings (NPT)
5/8” D x 3/4”
3/4” D x 3/4”
1” D x 3/4”
1” D x 1”
Female Fittings (NPT)
5/8” D x 3/4”
3/4” D x 1/2”
3/4” D x 3/4”
1” D x 1”
Couplings
5/8” D
3/4” D
1” D
FlowMaxx Quick-Connect Fittings
3/4” mounting clips for FlowMaxx IDL lineset are available in
packs of 4.
FlowMaxx Quick-Connect Fittings
Cut the pipe with pipc cut-
ter (if needed)
Slide on union nut and
close segment ring around
pipe groove
Connect nipple with union
nut without flat-sealing
washer
Tighten nipple to union
nut forming a flat-sealing
surface
Remove union nipple to
inspect flat-sealing surface
Insert flat-sealing washer
and connect to other fit-
tings
Installation of Quick-Connect Fittings