Tube Bundle And Bonnet Installation - Ace Heating Solutions Mini-Pack Operating And Maintenance Instruction Manual

4. Complete the seal by crossing the ends near a bolt hole. Cross one end over the other about 1"
and cut (as shown in VIEW "B").
VIEW
5. Assemble the flanged joints and torque the bolts as follows.
a) Run up all the nuts, finger tight.
b) Develop the required bolt stress in a minimum of about three equal steps, following a
tightening sequence (as shown in VIEW "C"). The gasket material is highly compressible,
but has little resilience; so gradual tightening is necessary to form a gasket of uniform
thickness. Use a torque wrench to get recommended torque rating on
VIEW
"C"

Tube Bundle And Bonnet Installation

Caution: It is recommended that you wear proper eye protection.
1. Flange and tube sheet preparation: Thoroughly clean the gasket surface of foreign matter and
scratches. Dirt and scale provide leakage paths.
2. Apply gaskets: Install gasket material on stationary flange with adhesive side down. See
from Gasket Installation above on Page
a) Overlap material at top of flange.
b) Overlapped ends should protrude out of flange, with one end on each side of top bolt.
c) Make sure gasket does not extend into bore.
"B"
18.
Gasket Material
ACE BOILER INC.
Page 19
Page 8.
Step #3