ASME Pressure Vessels and Water Storage Tanks - page 47

Boiler Blowdown Vessel Sizing Guide
• 47
Standard Features
• Manufactured to ASME Code
for a working pressure 1/4 the
maximum working pressure of
the boiler
• Blowdown Inlet:
- Tangential Blowdown Inlet
with Wear Plate or Internal Baffle
at the blowdown inlet so that the
steam distribution will be
equalized and directly discharged
against the shell of the tank
• Tank Vent (sized for specific
boiler or local code)
• 12” X 16” minimum elliptical
manway
• Bottom Overflow Drain Outlet
with Siphon Breaker
- Built-in siphon break
- Trapped so that water is drained
within 6" from the bottom
of the tank
• Cleanout Drain: 2" NPT minimum
provided at the bottom of the tank
• Primer paint
Options
Tank Support Systems:
• Horizontal - UL Saddles
• Vertical - Ring Bases, Angle Legs
Overall Height (OAH)
Straight Shell Height (SSH)
Cleanout Drain (C)
Diameter
Blowdown Inlet (Up to 2")
Vent (A)
Support Legs
Wear Plate
Syphon
Breaker
Manway
Sight
Glass
Overflow
Drain (B)
Water
Level
Drain Drain
Vent*
Outlet* Cleanout**
Diameter
SSH
OAH
A
B
C
36"
30"
70"
4"
3"
2"
42"
42"
85"
5"
3"
2"
48"
48"
94"
6"
4"
2"
54"
66"
116"
6"
4"
2"
60"
72"
125"
6"
4"
2"
72"
96"
155"
10"
4"
2"
* RFSO, ** NPT.
Custom size and pressure BBT are available, please contact Highland Tank for details.
Dimensions
1...,37,38,39,40,41,42,43,44,45,46 48,49,50,51,52,53,54,55,56,57,...
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