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Smith-Blair
421 Top Bolt Couplings
Overview
Documentation & Tools
Overview
Overview
Two bolt, stab fit coupling featuring removable/replaceable inner gaskets to expand range of product and reduce number of SKUs that must be stocked.
Product Features
Easy to install — One bolt on each end to tighten
Removable inner gasket for larger O.D.s
Bi-directional inner gasket can be reinstalled
Corrugated armor — reduces friction between gasket and armor, thus allowing better gasket seating; prevents armor from gouging flange finish, thus reducing possible corrosion point
Wide range - Up to 1.31 inches
Reduces inventory by having wide range
Deflection 4° per end
Lightweight
Stab insertion of pipe ends
Corrosion resistant Flexi-Coat® Epoxy Finish
Epoxy coated 304 Stainless Steel hardware and fluoropolymer coated nuts to reduce galling
Connectors available for additional corrosion protection using anodes
Easily disassembled when necessary
Smith-Blair Steel Couplings offer many distinct advantages when installed in a piping system. Properly selected and installed felxible couplings maintain the continuity of the pipe system, retain the line contents under internal pressure and prevent infiltration under vacuum. Our couplings consist of one cylindrical sleeve with conical inner surfaces at each end; two resilient, wedge-shaped, specially-compounded rubber gaskets; two ring-shaped followers and a set of high-strength, low-alloy track-head, oval-neck, rolled-thread bolts with heavy hex nuts.
