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71
cast iron
Malleable Iron
Cast Iron
Small Steel
Fittings
Pipe Nipples &
Pipe Couplings
Forged Steel
Fittings & Unions
Anvilets
Catawissa
J.B. Smith Products
Carton Information
Note:
See page 63 for pressure-temperature ratings.
Cast Iron Flanged Fittings
Class 250 (Extra Heavy)
Specifcations
All Extra Heavy or “Class 250” Cast Iron Flanged Fittings in sizes
listed are made to ASME B16.1, and are marked “250”. All Class
250 Cast Iron Flange Fittings are faced and drilled to ASME B 16.1,
unless otherwise specifed.
Anvil Fittings’ sizes 1" NPS to 10" NPS
(25 to 250 DN)
shown in
this section are included in the “List of Inspected Fire Protec-
tion Equipment and Materials” issued by the Underwriters’ Lab-
oratories, Inc.
Coatings
Flanged fttings are available in both black and galvanized.
Consult an Anvil Representative for available sizes.
Sizes
To avoid delay in shipment, where other than sizes given are
ordered, we carry in stock reducing fanges, the use of which,
in connection with straight or reducing fttings carried in stock,
enable us to fll orders promptly for reducing sizes where
specifcations will permit reduction made in this manner. The
reducing fanges furnished are the same thickness as the regular
companion fange of the corresponding outside diameter and
will be drilled to the template corresponding to the outside
diameter unless otherwise ordered. For fttings reduced in this
manner, please specify “reduce by fanges if necessary.”
To order reducing companion fanges, specify threaded or re-
duced size frst and follow with outside diameter. For instance, if
a reducing fange is required to connect a 4-inch
(100 DN)
pipe to
a 6-inch
(150 DN)
valve or ftting having a 12
1
/
2
"
(315 DN)
fange,
order a 4 NPS x 12
1
/
2
NPS
(100 x 315 DN)
reducing fange.
Dimensions
All Extra Heavy or “Class 250” Cast Iron Flanged Fittings have
a raised face (for gaskets)
1
/
16
-inch
(2mm)
high inside of bolt
holes. For bolts 1
1
/
8
-inch
(29mm)
smaller, the bolt hole is drilled
1
/
8
-inch
(3mm)
larger than the diameter of bolt. Bolt holes
straddle the center line and the steel bolts with square heads
and hex nuts are recommended.
Reducing elbows have same center to face dimensions as
regular elbows of the largest straight size.
Reducing tees NPS 12
(300 DN)
and smaller have the same
center-to-face and face-to-face dimensions as a straight ftting
of the size of the largest opening. Dimensions for larger sizes
furnished upon request.
Tolerances
An inspection limit of plus or minus
1
/
32
inch
(1mm)
is allowed on
all center to contact surface dimensions for sizes up to and in-
cluding 10 NPS
(250 DN)
and plus or minus
1
/
16
inch
(2mm)
on sizes
larger than 10 NPS
(250 DN).
Inspection limit of plus or minus
1
/
16
inch
(2mm)
is allowed on all contact surface to contact surface
dimensions for sizes up to and including 10 NPS
(250 DN)
; plus or
minus
1
/
8
inch
(3mm)
on sizes larger than 10 NPS
(250 DN)
.
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F
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H R
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X
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Y
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V
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F
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S
90 Elbow (Straight Size)
90 Elbow
Side Outlet Elbow (Straight Size)
90 Elbow (Reducing Size)
front view
side view
Tee (Straight Size)
90 Base Elbow
Concentric Reducer
Eccentric Reducer
Tee (Reducing Size)
Cross (Straight Size)
45 Lateral (Straight Size)
45 Elbow
Method of designating location of tapped holes for drains when specified
Class 125 (standard) and Class 250 (extra heavy)
Note: These sketches show two views of the same fitting and represent fittings with symmetrical shapes except for the side outlet elbow (straight sizes)