The Smith-Blair Type 411 steel coupling is designed for joining plain end pipes of equal outside diameters ranging from 9.05 inches to 9.30 inches (8 inch nominal pipe size). Featuring a high-build epoxy coating, Buna-N gaskets, and heavy-duty alloy steel bolts, this coupling provides a durable, leak-free seal for water, chemical, and industrial piping applications without requiring welding or special pipe end preparation.
Inspection & Condition Details:
We have inspected this item and we do not have the capability to install the unit to fully test it. There are some cosmetic scuffs and scratches throughout the unit.
Please refer to the photos for more information.
This unit only includes what is photographed in the listing.
Made in USA.
Technical Specs
| Item | Bolted Coupling |
| For Media Type | Acids; Chemicals; Water |
| Bolt Hole Diameter | 5/8 in |
| Bolt Material | Steel |
| Coupling Material | Epoxy Coated Steel |
| Fitting Side A Gender | Female |
| Fitting Side A Nominal Pipe Size | 8 in |
| Fitting Side A Outside Diameter | 9.05 in - 9.30 in |
| Fitting Side A Type | Flange |
| Fitting Side B Gender | Female |
| Fitting Side B Outside Diameter | 9.05 in - 9.30 in |
| Fitting Side B Type | Flange |
| For Movement Type | Vibration |
| For Pipe Schedule | Schedule 80 |
| Maximum Operating Pressure | 150 psi |
| Overall Length | 7 in |
| Seal Material | Buna-N |
| Specific Fitting Shape | Coupling Body |
| Country of Origin | USA |