Brochure
CAST IRON BLIND FLANGE
CAST IRON EXTRA HEAVY FLANGE UNION CLASS 250
NPS
Outside
Flange
Dia.
A
Thickness
of Flange
D (min)
Number
of Bolt
Holes
Bolt
Hole
Size
Bolt
Circle
Dia.
Dia. of
Port
D
1 4.25 0.44 4 0.62 3.12 1.00
1 1/4 4.62 0.50 4 0.62 3.50 1.25
1 1/2 5.00 0.56 4 0.62 3.88 1.50
2 6.00 0.62 4 0.75 4.75 2.00
2 1/2 7.00 0.69 4 0.75 5.50 2.50
3 7.50 0.75 4 0.75 6.00 3.00
3 1/2 8.50 0.81 8 0.75 7.00 3.50
4 9.00 0.94 8 0.75 7.50 4.00
5 10.0 0.94 8 0.88 8.50 5.00
6 11.0 1.00 8 0.88 9.50 6.00
8 13.5 1.12 8 0.88 11.75 8.00
10 16.0 1.19 12 1.00 14.25 10.00
NPS
Outside
Flange
Dia.
A
Overall
Height
B (min)
Dia. of
Hub
C (min)
Thickness
of Flange
D (min)
Number
of Bolt
Holes
Bolt
Hole
Size
Bolt
Circle
Dia.
Dia. of
Bolts
Length
of Bolts
*2 5.50 1.06 3.25 0.81 5 0.56 4.50 0.50 2.50
*2 1/2 6.00 1.06 3.81 0.81 5 0.66 4.75 0.63 2.75
*3 6.81 1.18 4.38 0.81 6 0.69 5.35 0.63 2.75
*4 8.18 1.25 5.44 0.75 7 0.69 6.38 0.63 3.00
A
B
D
C
H H
D
A
B
C
SECTION H-H
Section 7 Page 53
Cast Iron Extra Heavy Union Class 250
X.BHFU
All information contained within this document is intended for the sole use of Ward Manufacturing
and may not be released, used, copied, or distributed without the express written permission of ...
WARD MANUFACTURING LLC
BLOSSBURG, PA. 16912, USA
(570) 638-2131
TITLE:
MATERIAL:
DRAWN BY:
SHEET:
DATE:
CHECKED BY:
DATE:
SCALE:
SIZE:
SMARTEAM I.D.:
DATE
DESCRIPTION
APR
PART NO.:
REV.
XX-XXXXXXXXX
E.C.O. #
NEW SOLIDWORKS DRAWING
01
XXX
ANGULARITY: ±1
SURFACE FINISH:
63
±.031 FOR THE FIRST INCH,
AND AN ADDITIONAL ±.005
FOR EACH ADDITIONAL INCH
DECIMAL PLACE:
.X ±.03
.XX ±.01
.XXX ±.005
AS-CAST SURFACES
MACHINED SURFACES
UN THREADS - EXTERNAL: CLASS 2A, INTERNAL: CLASS 2B
TOLERANCES AND SPECIFICATIONS
UNLESS OTHERWISE NOTED:
THIS IS A CAD DRAWING,
DO NOT ADD HAND WRITTEN EDITS
XX/XX/XX
1
OF
1
B
ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED
DRAWN IN ACCORDANCE WITH ASME Y14.5
BREAK ALL SHARP CORNERS AND REMOVE ALL BURRS
DRAFT ANGLE IS 2° UNLESS NOTED OTHERWISE
THREADS:
REV.
*Working Pressure 400 PSI
56