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Aluminium slip-on flange, flat silver disc with eight bolt holes

Zoro Select

Zoro Select Bulk-PF-475 Aluminum Slip-On Flange 9 in

SKU CH-1309-SWB6F

Aluminium slip-on flange fits 4-inch Schedule 40 pipe, rated 125 psi at 72 °F and 185 psi steam to 270 °F

  • Aluminium construction resists corrosion in plumbing systems
  • Slip-on design speeds installation on Schedule 40 pipe
  • Class 125 rating handles 125 psi at 72 °F
  • Eight bolt holes on 7 1/2 in circle simplify alignment
  • 6063 alloy performs from 0 °F to 270 °F

Zoro Select Aluminum Slip-On Flange

This Zoro Select aluminum slip-on flange is built for piping systems that need a flat-face connection. It suits installers working with Schedule 40 pipe in low-pressure water, air or steam lines. The 6063 alloy resists corrosion in typical industrial environments.

Class 125 Pressure Rating Decides Fit

The flange is rated for 125 psi at 72 degrees F and 185 psi maximum steam pressure. Systems that run above these limits need a higher-class flange, so this part is not for high-pressure hydraulic or process piping.

Steady Temperatures Up To 270 Degrees F

Continuous service from 0 to 270 degrees F is supported without derating the pressure class. The aluminum body conducts heat quickly, so sustained steam or hot-water cycles stay within the rated envelope without creep concerns.

Highlights

  • Aluminium construction resists corrosion in plumbing systems
  • Slip-on design speeds installation on Schedule 40 pipe
  • Class 125 rating handles 125 psi at 72 °F
  • Eight bolt holes on 7 1/2 in circle simplify alignment
  • 6063 alloy performs from 0 °F to 270 °F

Specifications

BrandZORO SELECT

Questions about this item

What does the 125 psi rating mean once the flange is bolted into a pipe system?

At 72 degrees F the flange handles 125 psi maximum operating pressure and 185 psi steam pressure, so it is sized for low-pressure water or steam lines within that temperature range.

How does the slip-on style and Class 125 designation limit the pipe schedules it can join?

The slip-on bore matches Schedule 40 pipe, and the Class 125 rating caps the design pressure at 125 psi, so it cannot be used on higher-pressure schedules or classes.

What does the 9 in outside diameter and 15/16 in thickness require for bolting and gasket seating?

The 9 in OD carries eight 3/4 in bolt holes on a 7 1/2 in bolt circle, and the 15/16 in thick flat face provides the seating surface for a full-face gasket.

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