Smith-Blair Couplings consists 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.

Properly selected and installed flexible couplings maintain the continuity of the piping system, retain the line contents under internal pressure and prevent infiltration under vacuum.

Smith-Blair Pipe Couplings offer many distinct advantages when installed in a piping system.

• No special pipe end preparation is required.
• Simple installation requires only a wrench.
• Pipe does not have to be cut to exact length.
• Exact alignment of pipe ends is not necessary.
• Coupling fits on outside wall of pipe. No internal projections to disturb flow. No damage to pipe lining.
• Many types of pipe including pipes of different materials can be joined.
• Every joint is a union. (A length of pipe can be removed by disassembling the coupling.)
• Couplings allow for limited expansion and contraction.
• Couplings dampen vibration.
• Deflection capability of couplings permits installation of curves or changes in grade without the use of special pipe fabrications.
• Couplings allow for angular deflection caused by settlement or lateral movement after installation.
• Couplings can be installed in any invironment. Weather is not a factor.
• No fire hazard due to no welding being required.
• Increases the hoop strength of the pipe at the joint.

#	PRODUCT	DESCRIPTION	APPLICATION	FOR PIPE SIZES	WORKING PRESSURE	TEMP
411		Steel Coupling	Joining Plain-end Pipe with same Outside Diameter	1/2" and larger	150 PSI and Up According to size, design and type of pipe	150° F and Higher with Special Gaskets
413		Steel Transition Coupling	Joining Pipe of Different Outside Diameters	2" and larger
415		Reducing Coupling	Joining Pipe of Different Outside Diameters	1/2" and larger
416		Steel Insulating Coupling	Joining Pipe Insulating One from the Other	2" and larger
481		Pipe End Cap	Permanent or Temporary Pipeline Closure for Line Testing End Capping or Night Capping	2" and larger
611		Expansion Joint Coupling	Absorbing Concentrated Pipe Movement	3" and larger
913		Steel Flanged Coupling Adapter	Joining Plain-end Pipe to Flanged Valves and Fittings	3" and larger
914		Reducing Flanged Coupling Adapter	Joining Plain-end Pipe to Larger or Smaller Flanged Valves and Fittings	2" and larger