Product Details, Specifications, and Technical Information
- Flange Dimensions Listed Above Apply to Both 125# Cast Iron and 150# Ductile Iron
- Threads for Companion Flanges Conform to ANSI/ASME B1.20.1 NPT
- All Flanges are Asphalt Coated as Standard, Hot Dip Galvanizing Available

Dimension Name | Specification |
Nominal Pipe Size | 1 |
Class | Class 125 |
Fitting Type | Flange |
OD Actual | 4.25 |
Hole Diameter | 0.62 |
Outer Diameter | 4.25 |
Bolt Circle | 3.12 |
Class | Class 125 |
Thickness | 0.44 |
Number of Holes | 4 Holes |
Actual Thickness | 0.44 |
Alloy | ASTM A197 |
Material | Cast Iron |
Shape | Pipe Fittings |
Shape Type | Companion |
Ships | 3-5 Business Days |
Brand | GetPipe.com |
Weight/Lineal Foot | ||
1.56 pounds |
Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.