Technical and dimensional specifications
Dished heads
TYPE A DISHED HEAD
Dished-only heads
| D | R | s |
|---|---|---|
| 400–5000 | 2 x D 1.5 x D 1 x D 0.8 x D |
3 ÷ 60 |
| R = 1.5 x D | |
| SV | D x 1.015 |
| HT | D x 0.075 + S |
| R = D | |
| SV | D x 1.04 |
| HT | D x 0.140 + S |
TYPE B DISHED HEAD
Shallow-flanged flat heads
Technical and dimensional specifications
| D | r | h | s |
|---|---|---|---|
| 500–5000 | 50 | ≥ 5 x s |
3 ÷ 32 |
| SV | D + 50 + 2h |
| Ht | 50 + h + s |
TYPE B PRESSED HEAD
Technical and dimensional specifications
TYPE C DISHED HEAD
Deep-flanged flat heads
Technical and dimensional specifications
| D | r | h | s |
|---|---|---|---|
| 500–5000 | D/10 | ≥ 5 x s | 3 ÷ 32 |
| SV | D x 1.09 + 2h |
| Ht | D x 0.1 + h + s |
TYPE D DISHED HEAD
Shallow-dished standard heads
Technical and dimensional specifications
| D | R | r | h | s |
|---|---|---|---|---|
| 500–3050 | 1.5–2 D | 50 | ≥ 5 x s | 3 ÷ 32 |
| 3100–3450 | 1.5–2 D | 80 | ≥ 5 x s | 3 ÷ 32 |
| 3500–5000 | 1.5–2 D | 100 | ≥ 5 x s | 3 ÷ 32 |
| R = 2D r = 50 | |
| SV | D x 1.03 + 2h |
| Ht | D x 0.090 + h + s |
TYPE DE DISHED HEAD
Medium-dished standard heads
Technical and dimensional specifications
| D | R | r | h | s |
|---|---|---|---|---|
| 500–5000 | D | 50 | ≥ 5 x s | 3 ÷ 32 |
TYPE E DISHED HEAD
Torispherical or decinormal heads
Technical and dimensional specifications
| D | R | r | h | s |
|---|---|---|---|---|
| 320–5000 | D | D/10 | ≥ 5 x s | 3 ÷ 32 |
| SV | D x 1.11 + 2h |
| Ht | D x 0.194 + h + s |
TYPE F DISHED HEAD
Semi-elliptical heads
Technical and dimensional specifications
| D | R | r | h | s |
|---|---|---|---|---|
| 500–4000 | 0.8 X D | D/6.5 | ≥ 5 x s | 3 ÷ 32 |
| SV | D x 1.16 + 2h |
| Ht | D x 0.25 + h + s |
TYPE G DISHED HEAD
Reverse-flanged dished heads
Technical and dimensional specifications
| D | R | r | h | s |
|---|---|---|---|---|
| 500–5000 | 0D | v | * | 3 ÷ 32 |
* upon request
TYPE H DISHED HEAD
Flat-flanged dished heads
Technical and dimensional specifications
| D | R | h | s |
|---|---|---|---|
| 500 ÷ 5000 | * | ≥ 5 x S |
3 ÷ 30 |
* upon request
TYPE I DISHED HEAD
Cones
Technical and dimensional specifications
| D | r | Ht | h | s | d |
|---|---|---|---|---|---|
| 500–5000 | * | max 1150 | ≥ 5 x S |
3 ÷ 32 |
* |
Also available as a cone without flanging (open cone)
* upon request
DISHED HEADS FOR DOUBLE-WALLED TANKS
Technical and dimensional specifications
| D | R | r | h | Ht |
|---|---|---|---|---|
| 1258 | 1250 | 50 | 30 | 230 |
| 1508 | 1500 | 50 | 30 | 265 |
| 1908 | 1900 | 70 | 30 | 330 |
| 2512 | 2500 | 95 | 30 | 425 |
| 3012 | 3000 | 180 | 30 | 545 |
