4" Black Cast Iron Steam Flange Union Zoom

4" Black Cast Iron Steam Flange Union


Brand: Ward

Qty Price
/ each
$332.85 / box (3 units x $110.95)
In Stock! Ships in 24-48 Hours
(28 Available)


Size: 4"
Material: Cast Iron
Application: Plumbing
Connection Type: Threaded

Description for Ward FCIFLU4

4" Black Cast Iron Steam Flange Union

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  • 2" Black Cast Iron Steam Flange Union


    How do these work differently than regular bolted flanges? I am familiar with flanges and I am familiar with unions, but what is a steam flange union? We have submerged heating coils (for steam) that have begun leaking at the flanged connections and I was wondering if this steam flange union is what we should be using instead.
    Asked on 2/18/2011 by Pat from Orange County, CA

    1 answer



      Steam flange unions function in same way that standard bolted flanges do. If your current flanges were not custom made, you will be able to use these as long as they have the same exact diameter as your coils and the same number of bolt holes (likely 4 or 5). You will also need steam gaskets (not rubber). These unions are rated at 125 psi.

      Answered on 2/18/2011 by PexSupply Staff from NY
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