What is a flanged coupling adapter?
A plain end x flange fitting: one end bolts to a flanged valve, meter, pump or fitting, the other slides over plain-end pipe and seals on its OD with a compressed gasket. It replaces a welded or threaded flange and lets the flanged item be removed without cutting pipe.
Do I need a restrained FCA?
If nothing else holds the pipe at that joint (no thrust block, tie rods or restrained pipe), yes. A standard FCA seals but does not restrain, and Smith-Blair requires the pipe to be anchored. Choose the 911 for ductile iron or steel, the 920 for PVC, or the EZ-W FCA.
Can I use a Style 911 on PVC pipe?
No. The 911 has black wedges made for ductile iron and steel. PVC takes the Style 920 with red wedges, in SDR 26 or heavier wall. Never swap the wedges between the two.
How do I find the right size?
Order by the measured pipe OD, not the nominal size. A 6 in pipe can be 6.63 in OD (steel, IPS PVC) or 6.90 in (ductile iron, C900 PVC). Measure with a pi tape, or divide the circumference by 3.1416, and match it to the OD range in the listing.
What pressure are these adapters rated for?
150 PSI on the 911, 913, 914 and 923; 175 PSI on the 921, the EZ-W FCA and the 920 through 12 in; 250 PSI on the 912. The pipe and the companion flange can set a lower limit.
Are the flange gasket and flange bolts included?
Usually not. The FCA kit covers the coupling end; the gasket and bolts for the companion flange are sized to that flange. The 912 ships with its flange bolts. We quote the rest with the adapter.
How much deflection does an FCA take?
Up to 5° per gland on the Flange-Lock 911 and 920 at 4–12 in (3° at 3 in, less on larger sizes), 4° on the 921 and 2° on the 912, 913 and 914, each at the manufacturer's minimum pipe insertion.
Can an FCA go on HDPE pipe?
Yes, with a pipe stiffener: the 913, 914 and 921 list HDPE, and the EZ-W FCA restrains it. Smith-Blair requires the stiffener on PE and thin-wall PVC pipe.
What is the warranty?
12 months from the date of purchase, under Smith-Blair's published warranty terms.
What replaces a Romac FC400 or Dresser 127?
By Smith-Blair's cross-reference, the 913 matches the Dresser 128, Romac FC400, Ford FCA, JCM 303 and PowerSeal 3528; the 912 matches the Dresser 127, Romac FCA501, Ford FFCA, JCM 301 and PowerSeal 3521. Confirm the OD range and flange before ordering.
