Hydrostatic Test The Boiler - PEERLESS Series 211A Installation, Operation & Maintenance Manual

PLACE THE BOILER SECTIONS
Figure 3.4: Align Sections Vertically
e. Draw sections together evenly, alternating
between top lug and bottom lug in increments of
20 ft.-lbs. (27 N
bottom lugs are tightened to 60 ft.-lbs. (81 N
DO NOT EXCEED 60 FT.-LBS (81 N
f. Check the level while tightening to make sure
alignment stays true. Also make sure sections
remain square with the Base from front to back
as the tie rods are tightened and as additional
sections are installed.
g. If the sections tend to run out of plumb, this will
usually be at the bottom front. Loosen the upper
nuts slightly and tighten the lower ones to adjust.
7. Assemble the remaining sections in the same way for
a finished assembly as shown in Figure 3.3.
8. Some of the Intermediate Sections have tappings for
installing additional risers from the boiler. These
Tapped Intermediate Sections must be installed as
shown in Figure 3.5A. The placement order is left to
right (Figure 3.5).
9. After all sections are mounted, apply the furnace
cement provided between the Base and the bottoms
of the sections.
Figure 3.5: Section Positioning Numbering
16
·
m). Continue until both top and
·
m).
Boiler Model Number
211A-29
211A-30
211A-31
211A-32
211A-33
211A-34
211A-35
211A-36
211A-37
211A-38
211A-39
211A-40
211A-41
211A-42
211A-43
211A-44
211A-45
·
m).
211A-46
Figure 3.5A: Section Position Numbering
C. HYDROSTATIC TEST THE BOILER
1. The supply and return piping can be permanently
erected before applying the Boiler Jacket if the pipe
nipples applied to the boiler tappings are long
enough to clear the jacket.
2. Install a drain cock in one of the tappings provided
at the bottom rear of each end section.
3. Provide a water supply line to the boiler.
4. Plug all open tappings in the boiler.
5. Provide a means to vent air as the boiler fills.
6. Fill the boiler with water, venting air as water level
rises.
7. Pressurize boiler to:
•
75 psig (517 kPa) for 50 psig (345 kPa) sections.
Do not exceed this pressure.
•
120 psig (827 kPa) for 80 psig (552 kPa)
sections. Do not exceed this pressure.
a. Maintain pressure while checking all joints and
fittings for leaks.
b. After inspection is complete, drain the boiler and
remove plugs from tappings that are to be used.
Place Tapped Intermediate
Sections at Positions
(Numbered Left to Right)
10, 20
11, 21
10, 22
11, 23
13, 25
9, 17, 26
9, 18, 27
13, 21, 29
13, 21, 29
12, 22, 31
12, 20, 28
8, 16, 25, 33
12, 19, 26, 34
12, 20, 27, 35
7, 14, 22, 30, 37
8, 16, 23, 29, 37
7, 14, 21, 32, 39
7, 14, 22, 29, 36, 43