Calculations for head plates and conical heads

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

[SD] Standard flanged dished head

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
ℓ：
mm
t：
mm
Specific gravity：
 

Calculate

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

[ED] Ellipsoidal dished head

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
ℓ：
mm
t：
mm
Specific gravity：
 

Calculate

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

Special dished head

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
R：
mm
r：
mm
ℓ：
mm
t：
mm
Specific gravity：
 

Calculate

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

[FH] Flanged only head

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
r：
mm
ℓ：
mm
t：
mm
Specific gravity：
 

Calculate

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

[DR] Dished only head

Note)
The actual measurements may differ from the calculation result due to a tolerance.

R：
mm
H：
mm
t：
mm
Specific gravity：
 

Calculate

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

[HH] Hemispherical head

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
t：
mm
Specific gravity：
 

Calculate

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

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
d：
mm
h：
mm

Calculate

Inner surface area:
㎡
Overall capacity:
㎥

[CH] Conical head: Type B

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
D1：
mm
d：
mm
r：
mm
h1：
mm
h2：
mm
α：
°

Calculate

Inner surface area:
㎡
Overall capacity:
㎥

[CR] Conical reducer: Type C

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
D1：
mm
D2：
mm
d：
mm
R：
mm
r：
mm
h1：
mm
h2：
mm
h3：
mm
α：
°

Calculate

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

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
h：
mm

Calculate

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

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
h：
mm

Calculate

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

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
h：
mm

Calculate

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

Note)
The actual measurements may differ from the calculation result due to a tolerance.

D：
mm
h：
mm

Calculate

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