Install Instructions

Brazed Plate Heat Exchangers Installation, Operation, and Maintenance Manual 8
9. For units with integral mounting tabs ensure unit is fully supported in place prior to tightening the
support tab bolts. Do not use the support tab bolts to pull the unit into position. Ensure the correct
number and size of bolts for the unit type is used to bolt the unit into place. Bolt unit into place
using the maximum torque values in Table 4.
10. For units supplied with mounting studs use Table 5 for maximum torque values. Damage may
occur if studs are over tightened. Unit should be fully supported in place prior to tightening the
studs. Do not use the studs to pull the unit into position.
11. Units with integral mounting tabs can be mounted using U-bolts or a customer supplied/fabricated
bracket.
12. Units with mounting studs can be mounted using a customer supplied/fabricated bracket.
Mounting Tab Bolt Maximum Tightening Force
Grade 8 Clean Lubricated Bolts
Unit Type
#
Bolts
Bolt Size Torque lb-ft
400 2 ¼” - 20 8
405 4 ¼” – 20 8
410, 411, 412, 415 2 3/8” – 16 24
422, 423, 424 4 ½” - 13 60
TABLE 4
Mounting Stud Maximum Torque Values
Grade * Clean Lubricated Bolts
Stud Size 1/4”-20 3/8”-16 1/2”-13
Torque lb-ft 8 24 30
TABLE 5