DESCRIPTION

  • Bi-directional inner gasket can be reinstalled
  • Deflection per end is 4°F
  • Easy to install with only one bolt on each end to tighten
  • Features a corrugated armor plate reducing friction between gasket and armor, allowing better gasket seating and prevents armor from gouging the flange coating
  • Lightweight
  • Removable inner gasket for larger O.D.s
  • Smith-Blair’s corrosion resistant Flexi-Coat® fusion bonded epoxy
  • Wide range

Smith Blair Inc Model 421 Bolt Carbon Steel Coupling 3.10 - 4.20 in. OD

S42103100420031

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SPECIFICATIONS

ASTM Specifications
ASTM A-536
AWWA Specifications
AWWA C-213
Coating
Fusion Bonded Epoxy
Collection
Model 421
End Connection 1
Bolt
End Connection 2
Bolt
End Connections
Bolt
Fitting Size 1
3 in
Fitting Size 2
3 in
Fitting Sizes
3 in
Fitting Type
Straight
Length
9-1/2 in
Material
Carbon Steel, Stainless Steel
Material Type
304
Maximum Pressure
150 psi
Maximum Temperature
180
NSF Certified
Yes
Range in
3.10 in - 4.20 in