Couplings, Watermain - Model 421 Top BoltTM

Manufactured by Smith-Blair Inc.
Brand: Smith-Blair

Wide Range Steel Coupling 2"-12" 260 PSI working pressure

Utility Works | Waterworks | Couplings

Certifications: PMC - Accepted for Use Durham Region Approved Products List

Prequalification Lists: 
Regional Municipality of Durham - - Watermain Pipe (PDF)
  • Ontario Provincial Standards
    • OPSS 441 - Watermain Installation in Open Cut
  • ASTM International
    • ASTM A193/A193M-14a - Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature or High Pressure Service and Other Special Purpose Applications
    • ASTM A283/A283M-13 - Low and Intermediate Tensile Strength Carbon Steel Plates
    • ASTM A285/A285M-12 - Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile Strength
    • ASTM A36/A36M-14 - Carbon Structural Steel
  • Other Standards
    • AWWA C213-07 - Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines
    • NSF/ANSI 61-2012 - Drinking Water System Components - Health Effects