Components (Continued)

This material exceeds industry standards for vapor permeance, puncture resistance, and because it is non-reactive and chemical-resistant, is the only jacket appropriate for wide ranging applications. Finally, our shields are fabricated using only US-made, G-90 galvanized steel.

While many claims are made as to what insulation material may be best suited for use in high-density inserts, V.E.P. has millions of successful applications using various forms and densities of American-made calcium silicate.

Perlite, promoted as being ‘water-resistant’, still absorbs 50% of its own weight in moisture when tested to ASTM C-240 standards. Manufactured by a ‘dry process,’ perlite will crumble if subjected to moderate loads or, more importantly, pipe vibration. Urethane, polyurethane, and polyisocyanurate insulation dense enough to provide adequate support does not meet most municipal fire and safety codes. Typically these materials have a significantly limited upper temperature range.

Foam glass (a.k.a. cellular glass) is not dependable under load, is naturally abrasive and can be detrimental to the life of the pipe itself.

The use of phenolic foam as pipe support material is also questionable due to its friability and the residual acids in this type of material which may promote corrosion. Because the cells are typically riddled with 'pin holes,' phenolic foam insulation can actually absorb and hold water!

Certain severe applications (i.e. cryogenic lines) dictate the use of urethane foam as the only appropriate insulation and pipe support material. For this reason, V.E.P. offers a distinct line of insulated pipe supports fabricated solely from Dow Chemical’s heavier density polyisocyanurate material. Dow Chemical, a worldwide leader in urethane technology, provides material of superior consistency, documented compressive strength and insulation value as well as compliance to many of the fire and safety codes in use today.

Conclusion

When considering a system of thermal hanger shields and insulated pipe alignment hardware on your next project, rely on those who have direct access to the best materials, access to state-of-the-art testing facilities and established fabrication techniques. Value Engineered Products’ time-proven designs and experience with custom, project-specific models, separates us from those who merely imitate the ones who have ‘set the standard’ for insulated pipe supports.

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