Sioux Chief 883-PT 3" Hub / Inside 4" Total Knockout Closet Flange w/ Plastic Ring
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Flange flange for bolted pipe connections. Steel/Iron construction.
- Flange flange — 150# rated
- Steel/Iron body for durability and long service life
- Raised face per ASME B16.5 / B16.1 standard
- Mates with standard 150# flanges and flange fittings
✔ Used by contractors and professionals
✔ Designed for reliable jobsite performance
Overview
Sioux Chief 883-PT 3" Hub / Inside 4" Total Knockout Closet Flange w/ Plastic Ring is a flange flange for bolted piping connections on water, steam, and industrial fluid systems. Flanges are fabricated to ASME B16.5 (150#) dimensional standards.
Common Uses
- Connecting pumps, valves, and equipment to flanged piping systems
- Water, steam, and industrial process fluid piping
- General commercial and industrial piping construction
- HVAC mechanical piping systems
- Municipal water and wastewater systems
Key Features
- Flange design — standard flanged connection
- Steel/Iron construction
- 150# pressure class rating
- Raised face per ASME B16.5 / B16.1
Specifications
| Material | Steel/Iron |
| Type | Flange Flange |
| Pressure Class | 150# |
| Face | Raised Face |
| Standard | ASME B16.5 |
Frequently Asked Questions
What is the difference between a 150# and 300# flange?
150# flanges are rated for lower pressures and are the standard for most commercial water and HVAC applications. 300# flanges have thicker walls and are rated for higher pressures and temperatures.
What is the difference between weld neck and slip-on flanges?
Weld neck flanges are welded at the neck and provide superior strength for high-pressure and cyclic service. Slip-on flanges slide over the pipe and are fillet-welded — faster to fit but not as strong as weld neck.
What gasket do I need with a raised face flange?
Raised face flanges typically use a full-face or ring gasket. Spiral wound or ring-type joint gaskets are used on higher-pressure applications.
Are flanges supplied with bolts and gaskets?
Flanges are typically supplied individually — bolts, nuts, and gaskets are ordered separately based on service requirements.
Why Contractors Choose This Product
- Blind flanges let you pressure-test a system before all connections are made — standard practice in commercial construction
- 150# rating covers the pressure range for most commercial and industrial water and steam applications
- Steel/Iron construction for reliable long-term service
- PVFPro stocks the full range of flange types, sizes, and pressure classes
Fewer reorders. Lower cost per job. Keeps your crew stocked.