Single Hose Assemblies and Adapters

Seal & Design Inc. provides you with superior fire retardant hose assemblies of unparalleled quality and integrity, designed specifically for hydronic heating and cooling systems. ChamFlex® is a “Class A” fire rated hose assembly with fixed male pipe thread on one end and swivel with male pipe adapter on the other end. Our tube compound has been tested to, and awarded, a UL 94 V-0 fire rating, the highest standard in the industry. The patented process, which bonds the inner tube to a stainless steel wire outer braid minimizes the possibility of the hose assembly kinking during installation. Assemblies for 1/2” and 3/4” hoses are available in a minimum length of six inches with increases of one inch. Minimum length for 1” and 1 1/4” hose is nine inches with one inch increments. In short—ChamFlex® provides you a hose with a long life of trouble-free service.


Hose Assembly:

Recognized by Underwriters Laboratories(UL) under UL 207.
Tested to ASTM E84/UL 723 and received a “Class A” Fire Rating.
This is the highest fire rating that can be obtained under this testing Methodology.

Hose Sizes:

1/2” to 1-1/4”

Hose Lengths:

12”, 18”, 24”, 36” and 48”
1/2” & 3/4” - Minimum length: 6” with 1” increments.
1” & 1-1/4” - Minimum length: 9” with 1” increments.

Inner Tube:

EPTF - Santoprene with UL 94 V-0 Fire Rating

Outer Braid:

302/304 Stainless Steel

Working Pressure:

1/2" and 3/4": 400 PSI
1": 500 PSI
1-1/4": 400 PSI

Temperature Range:

-40°F to 212°F


Plated Steel

Hose/Adapter Connection:

All Metal JIC Flare Connection

Fixed End Fitting:


Swivel End Adapter Options:

MNPT, FNPT(plated Steel), FSWT(brass)

Suitable Media:

Water and Glycol. Not rated for potable water.

ChamFlex Hose Assemblies and Adapters

Available Adapters

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