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Calculations 81-6-6472-4772 Contact
Calculations for head plates and conical heads

various calculations, including capacity calculations　are available for your use.
*The actual measurements may differ from the calculation result due to a tolerance.

[SD] Standard flanged dished head [ED] Ellipsoidal dished head Special dished head [FH] Flanged only head [DR] Dished only head [HH] Hemispherical head [C] Conical head: Type A [CH] Conical head: Type B [CR] Conical reducer: Type C [SD] Change in capacity of standard flanged dished head [ED] Change in capacity of ellipsoidal dished head

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Inner surface area, overall capacity, and product weight of head plates

[SD] Standard flanged dished head

[SD] Standard flanged dished head
D:
mm
ℓ:
mm
t:
mm
Specific gravity:

Inner surface area:
㎡
Overall capacity:
㎥
Unit weight:
kg

[ED] Ellipsoidal dished head

[ED] Ellipsoidal dished head
D:
mm
ℓ:
mm
t:
mm
Specific gravity:

Inner surface area:
㎡
Overall capacity:
㎥
Specific gravity:
kg

Special dished head

Special dished head
D:
mm
R:
mm
r:
mm
ℓ:
mm
t:
mm
Specific gravity :

Inner surface area:
㎡
Overall capacity:
㎥
Unit weight:
kg

[FH] Flanged only head

[FH] Flanged only head
D:
mm
r:
mm
ℓ:
mm
t:
mm
Specific gravity:

Inner surface area:
㎡
Overall capacity:
㎥
Unit weight:
kg

[DR] Dished only head

[DR] Dished only head
R:
mm
H:
mm
t:
mm
Specific gravity:

Inner surface area:
㎡
Overall capacity:
㎥
Unit weight:
kg

[HH] Hemispherical head

[HH] Hemispherical head
D:
mm
t:
mm
Specific gravity:

Inner surface area::
㎡
Overall capacity:
㎥
Unit weight:
kg

Inner surface area, overall capacity and product weight of conical heads (angle: radian)

[C] Conical head: Type A

[C] Conical head: Type A
D:
mm
d:
mm
h:
mm

Inner surface area::
㎡
Overall capacity:
㎥

[CH] Conical head: Type B

[CH] Conical head: Type B
D:
mm
D1:
mm
d:
mm
r:
mm
h1:
mm
h2:
mm
α:
°

Inner surface area::
㎡
Overall capacity:
㎥

[CR] Conical reducer: Type C

[CR] Conical reducer: Type C
D:
mm
D1:
mm
D2:
mm
d:
mm
R:
mm
r:
mm
h1:
mm
h2:
mm
h3:
mm
α:
°

Inner surface area::
㎡
Overall capacity:
㎥

Change in capacity of standard flanged dished head (excluding the flange) (angle: radian)

[SD] Change in capacity of standard flanged dished head

[SD] Change in capacity of standard flanged dished head
D:
mm
h:
mm

Capacity:
㎥
Calculate assuming ℓ = 1/1000㎥
ℓ

[SD] Change in capacity of standard flanged dished head
D:
mm
h:
mm

Capacity:
㎥
Calculate assuming ℓ = 1/1000㎥
ℓ

※It is difficult to express change in capacity by a theoretical formula in this case. Use the result only as a guide.

2:1 Change in capacity of 2:1 ellipsoidal dished head (excluding flange)

[ED] Change in capacity of ellipsoidal dished head

[ED] Change in capacity of ellipsoidal dished head
D:
mm
h:
mm

Capacity:
㎥
Calculate assuming ℓ = 1/1000㎥
ℓ

D:
mm
h:
mm

Capacity:
㎥
Calculate assuming ℓ = 1/1000㎥
ℓ