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Smith-Blair 281 Full Circle Wide Range Repair Clamp

Smith-Blair 281 Full Circle Wide Range Repair Clamp

  • 12124


The new 281 Full Circle Wide Range Repair Clamp will allow you to repair more leaks caused by breaks, splits or holes, as well as joining pipes of the same diameter.

They work on Carbon Steel, Stainless Steel, Ductile Iron, PVC, Asbestos Cement, Copper and Aluminum.

Working pressure is up to 150 PSI, depending on is- sues like pipe type, pipe repair that needs to be done, pipe diameter, service conditions and installation.

Model 281 Materials Specifications:

Band
    Type 304 Stainless Steel, per ASTM A 240 Finger

Finger
    Type 304 Stainless Steel, per ASTM A 240    
    Thickness 7 gauge
    Fingers allow for up to .95” of range Lug Bar

Lug Bar
    Type 304 Stainless Steel, per ASTM A 240
    Thickness 10 gauge

Keeper Bar
    Type 304 Stainless Steel, per ASTM A 240
    Thickness 14 gauge
    Helps pull clamp around the pipe and close the clamp during installation.

Gasket
    Nitrile Buna-N per ASTM D2000
    Thickness: .25” thick
    Certified to NSF/ANSI 61 & 372

Bridge Plate
    Nitrile Buna-N per ASTM D2000
    Molded and recessed into gasket
    Provides uniform distribution of gasket pressure over the entire pipe circumference.

Stud
    Type 304 Stainless Steel per ASTM A276
    Epoxy threads to prevent galling
    Rolled threads for greater accuracy and smooth finish

Nut
    Type 304 Stainless Steel or equivalent, per ASTM A194
    Fluoropolymer coated to prevent galling

Washer
    5/8” Type A Plain

MODEL 281 DOES NOT RESTRAIN PIPE MOVEMENT:
Proper anchoring is required to prevent pipe pull-out.
USE STIFFENERS WITH PVC: Pipe Stiffeners are required when this product is used with thin-walled PVC pipe.


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