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2:1 Semi-Elliptical Tank Heads

Sizes 6-5/8 to 192 inches in diameter. From 3/16 to 2 inches thick. Tolerances comply with ASME EG 32 (d). I.D. or O.D.

* Volume (US gal) V = .000586 D3
( D = ID in inches )

:1 Elliptical Head

  • Dish Radius is equal to 87.5% of Diameter
  • Knuckle Radius is equal to 17% (minimum) of Diameter

 

Diameter
Dish Radius
Knuckle Radius
Max. Straight Flange
Material Thickness
14" - 17"
87.5% of Diameter
3"
1/2"
10 gauge - 1/4" Plate
18" - 23"
87.5% of Diameter
4"
1"
10 gauge - 1/4" Plate
24" - 29"
87.5% of Diameter
5"
1-1/2"
10 gauge - 3/8" Plate
30" - 35"
87.5% of Diameter
6"
1-1/2"
7 gauge - 3/8" Plate
36" - 41"
87.5% of Diameter
7"
1-1/2"
7 gauge - 3/8" Plate
42" - 47"
87.5% of Diameter
8"
1-1/2"
7 gauge - 3/8" Plate
48" - 60"
87.5% of Diameter
10"
1-1/2"
7 gauge - 3/8" Plate

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