Atlas Copco ZR 110, Instruction Book

Page: 211 / 328

Temperature correction factors
Medium temperature
(°C)
Medium temperature
(°F)
Correction factor for maximum working pressure of
the compensator
0 32 1
50 122 1
80 176 1
85 185 0.92
90 194 0.83
95 203 0.75
100 212 0.67
105 221 0.6
110 230 0.54
Torque values
Compensator bolts should be torqued in 3 successive steps
• Step 1: Hand-tighten each bolt.
• Step 2: Torque the bolts crosswise up to the value mentioned in the table below and allow a
stabilization period of 30 minutes before moving to step 3.
• Step 3: Torque the bolts crosswise up to the value mentioned in the table below.
• Mind the parallelism of the sealing.
• Excessive torque will damage the sealing.
DN
(mm) DN
(inch) Step 1 Step 2
(Nm) Step 2
(lbfin) Step 3
(Nm) Step 3
(lbfin)
20 – 80 2 – 3 hand tight 50 443 80 708
100 – 300 4 – 12 hand tight 50 443 100 885
350 – 500 14 – 20 hand tight 50 443 130 1551
Do's and don'ts
The supplied compensators are NOT designed:
• to carry the weight of the mounted customer pipe end.
• to work as a damper for unanchored pipe ends.
• to carry the thrust forces of the compressed air.
Therefore, adequate supporting and anchoring of the customer pipe end should be foreseen to avoid
compensator damage.
Instruction book
2920 1815 04 209