Flexible Seismic Piping Connectors

Unisource builds flexible seismic connectors to be installed in wet or dry fire sprinkler piping. The Unisource product line for this important industry includes flexible seismic piping loops for both wet or dry fire sprinkler systems. We offer both our FireV–V-configuration loop and our U-configuration loop. Both products can be built to accommodate up to 24 inches of seismic motion.

fire-sprinkler-safety

Unisource “Fire-V” Flexible Seismic Loops

Unisource “FireV” flexible seismic loops are built to accommodate the unpredictable movements of fire sprinkler piping during seismic incidents. The innovative designs of our “FireV” combines flexible, braided stainless steel hose and braid with piping elbows to provide an engineered solution to seismic movement, while not requiring a change of direction. Tested and listed by U.L. (Underwriters Laboratories) for fire sprinkler applications, Unisource FireV loops can absorb as much as 24″ of seismic motion in all three planes of movement.

Also, unlike any other fire sprinkler loops on the market, the vee-configuration allows for fire sprinkler piping to be nested within other adjacent V-Loops. This feature saves space and eliminates the need for successively longer pipe extensions at the base of the loop.

Basic “FireV” construction includes Schedule 40 carbon steel 90-degree center elbow and 45-degree elbows at either end (eliminating the need for a change of piping direction).

End fittings can be carbon steel grooved ends, carbon steel male NPT, carbon steel beveled weld end, and carbon steel flanges.

Our standard listed seismic movement limits are generally 4-inches, 8-inches, or 24-inches, but any rating within 24-inches may be specially ordered. Each “FireV” loop is labeled with the appropriate U.L. identification, listing number, and part number. “FireV” loops are 100% pre-tested to U.L. standards prior to shipment and are shipped with installation instructions wire-tagged to the loop. Special shipping containers are used at no additional cost to protect the loops during shipment and during job-site storage. Sizes range from 1/2-inch through 8-inch diameter.

Styles include 47-47 flanged, Series 40-40 threaded, Series 55-55 grooved, or Series 42-42 beveled weld end.

Unisource “FireV” U.L. rated fire sprinkler loops are also listed for use in Canada.

Hose
Elbows
Braid
Drain Port
Type 321 stainless steel annular corrugated hosePainted Sch. 40 carbon steel 90-degree and 45-degree elbows. Stainless steel available upon request300 Series stainless steelCarbon steel with tapered plug

Unisource “FireU” U-SF21UL U.L. Rated U-Shaped Loops for Fire Sprinkler Systems

A tried-and-true stainless steel braided flexible seismic loop for fire sprinkler systems.

Unisource “FireU” flexible U-shaped seismic loops are built to accommodate the unpredictable movements of fire sprinkler piping during seismic incidents. The innovative designs of our “FireU” combines flexible, braided stainless steel hose and braid with piping elbows to provide an engineered solution to seismic movement, while not requiring a change of direction. Tested and listed by U.L. (Underwriters Laboratories) for fire sprinkler applications, Unisource FireU loops can absorb as much as 24″ of seismic motion in all three planes of movement.

Basic “FireU” construction includes Schedule 40 carbon steel 180-degree center elbow and 90-degree elbows at either end (eliminating the need for a change of piping direction).

End fittings can be carbon steel grooved ends, carbon steel male NPT, carbon steel beveled weld end, and carbon steel flanges. Our standard listed seismic movement limits are generally 4-inches, 8-inches, or 24-inches, but any rating within 24-inches may be specially ordered. Each “FireU” loop is labeled with the appropriate U.L. identification, listing number, and part number. “FireU” loops are 100% pre-tested to U.L. standards prior to shipment and are shipped with installation instructions wire-tagged to the loop. Special shipping containers are used at no additional cost to protect the loops during shipment and during job-site storage. Sizes range from 1-1/2-inch through 8-inch diameter.

Styles include 47-47 flanged, Series 40-40 threaded, Series 55-55 grooved,
or Series 42-42 beveled weld end. 
Unisource “FireV” U.L. rated fire sprinkler loops are also listed for use in Canada.

Hose
Reinforcement
End Fittings
Elbows
Branding
Sizes
Allowable Motions
Drain Port
Type 321 stainless steel annular corrugated hoseStainless steel braidCarbon steel grooved. Also available in flanged, threaded & weld end styles.Painted Sch. 40 carbon steel 180-degree and 90-degree elbows. Stainless steel available upon request.  U.L. Labeled for Fire Sprinkler Systems 1-1/2″ through 8″ 4″ or 8″ of movement are standard. Special order up to 24″ of movement. Carbon steel with tapered plug

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