Tapping | Size | Steam Boiler | |
Location | (in) | ||
| |||
A | 4 | Supply | |
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| |
B | 4 | Plug | |
Supply | |||
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| ||
C | 3 | ||
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| |
D | 3 | Return | |
|
|
| |
E | 3 | Plug | |
|
|
| |
F | 3 | Plug | |
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|
| |
G | Safety Valve/Surface Skim Tap | ||
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|
| |
J1 | 1 | Plug | |
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|
|
Tapping | Size | Steam Boiler | |
Location | (in) | ||
| |||
J2 | 1 | Float L.W.C.O. | |
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|
| |
K | 3/4 | Plug | |
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|
| |
M | 3/4 | Operating Pressure Limit Control | |
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| |
N | 3/4 | Hi Pressure | |
Limit Control/Manual Reset | |||
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| ||
P | 1/2 | Gauge Glass/#67 L.W.C.O. | |
|
|
| |
Q | 1/2 | Steam Gauge (Bush to 1/4") | |
|
|
| |
S | 3/4 | Tankless Heater Control | |
|
|
| |
T | 3/4 | Firing Rate Pressure Control | |
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|
|
Figure 25a Purpose of Tappings - Steam Boilers
26
