Flexsul-Seal - Northland Distributing & Manufacturing, Inc.

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Home > Underground Pipe > Flexsul-Seal

Flexsul-Seal

The characteristics that make rigid Insul-Seal a superior insulator for hot water lines has finally been translated into a flexible version retaining the positive benefits of the original product.

Flexsul-Seal is an elastomeric thermal insulation used to retard heat loss in hot water plumbing and dual hot waterline systems. The Flexsul-Seal system is designed to trap dead air, within an expanded closed cell structure, thus increasing its total R-Value and reducing Heat loss in cold underground burial. Thermal performance is achieved by sealing the 2-5/8" centered air space, in effect reducing the flow of air and increasing the total R-Value of 6 by and additional factor of 5-9.

Pex tubing carrying hot water needs room to expand and contract. Without needed space to expand, Pex tubing call cull and add unneeded stress at its connections. With the Flexsul-Seal system Pex waterlines have sufficient room to expand and contract with no stress added to connections ends.

For your Outdoor furnace Installation it only make sense to use a quality product. Outdoor wood Boilers can only operate at peak performance when used with a quality insulated piping system. A poor quality insulated system will require substantially more wood and also reduce the amount of heat delivered to heat your home. Flexsul-Seal carries along the tradition of high quality and high standards already established by its manufacturer, Insul-Seal Insulated PVC.

Flexsul-Seal Advantages

Lightweight - Easy Handling
High Flexibility
5" I.D. - Increased Insulation Protection
50% more insulation area then 4"
Thermal Dead Air Pocket resulting in increased R-Value
Decrease Labor Costs
Joint-Free Installation
Lighter Weight = Lower Transportation Costs
Each Coil includes:

1 - 5" Coupling
1 - Roll Tape
4 - Insulated end caps

Flexul-Seal Specs

Exterior skin consists of 50 mil Polyethylene Corrugated Tubing
Exterior skin complies with ASTM F405-97 for H.D. Tubing
All Pex Tubing Meets Applicable Standards

Thermal Insulation Properties

Operating Range: -297ºF to 220ºF
90% Closed Cell
.02% Water Absorption by volume
.10% Water Vapor Permeability
Passes flame Spread of 25 as tested by ASTM E 84
Meets requirements of ASTM C 411 for hot surface performance of High Temperature Thermal Insulation
R-Value = 6 per Inch
Non-Porous, Non Fibrous Insulation resists mold growth
3lb/ft - 6lb/ft Density

Brochure

Sub-Categories

¾ Flexsul-Seal - Pex-Al-Pex

1 Flexsul-Seal - Pex-AL-Pex

1 ¼ Flexsul-Seal - Non-Barrier

1 ½ Flexsul-Seal - Oxygen Barrier