Style 441 | Cast Coupling

Product Features:

• Cast Couplings Application To join plain end pipes with the same or different O.D.s by changing followers and gaskets.  
• Heavy cast Ductile Iron parts for long life 
• Meets applicable AWWA C219 Standards 
• Flanges and gaskets can be mixed and matched on the same size nominal sleeve 
• Most couplings are stab fit making installation easy. No disassembly is required 
• Up to 2.4 of range with a single coupling reducing the need for large coupling inventories 
• One sleeve per nominal pipe size takes the guesswork out of deciding which sleeve size to choose 
• Flanges are color-coded by pipe type Red for iron pipe size O.D. Blue for Ductile O.D. and gray for Asbestos-Cement O.D. 
• Gaskets and flanges are permanently marked with a part number and range to facilitate proper selection 
• Sleeves are available in a variety of lengths and custom length Steel sleeves are available for special applications 

Style 441 Smith Blair Spec Sheet

Materials:

• SLEEVE Ductile Iron ASTM A536. Ends have smooth inside taper for uniform gasket seating 
• GASKET Nitrile (Buna N) certified to NSF/ANSI 61G. Compounded to produce superior storage and performance characteristics while resisting water acids alkalies most (aliphatic) hydrocarbon fluids and other chemicals 
• FOLLOWER FLANGES Ductile Iron ASTM A536. Designed for high strength to weight ratio 
• BOLTS & NUTS High strength low alloy Steel bolts with heavy semi-finished hexagon nuts to WWA C219 (ANSI A21.11) Optional Stainless Steel 
• FINISH Flexi-Coat Fusion-Bonded Epoxy Finish 
• Working Pressure Up to 250 PSI 
• Pipe Applications Steel Cast Iron Asbestos Cement PVC and other. For other pipe materials please contact Smith-Blair Engineering.