Xylem Bell & Gossett CRS, Instruction Manual

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4. Dispose of the old gasket.
5. Replace the cover head gasket with a new one.
6. Install the housing cover.
7. Tighten the flange bolts.
The bolts must be tightened in increments of 30%, 60%, and 100%:
Connection size, in
(mm)
Body size, in (mm) Bolt size, in (mm) Number of bolts Torque, lbf.ft (Nm)
150# flanges
Dry Torque, lbf.ft (Nm)
150# flanges
Lubricated
2 (50.8) 6.5 (165.1) 3/4 (19) 8 250 (339) 175 (237.2)
2.5 (63.5) 6.5 (165.1) 3/4 (19) 8 250 (339) 175 (237.2)
3 (76.2) 6.5 (165.1) 3/4 (19) 8 250 (339) 175 (237.2)
4 (101.6) 8 (203.2) 3/4 (19) 8 250 (339) 175 (237.2)
5 (127) 10 (254) 7/8 (22.2) 12 400 (542.3) 275 (373)
6 (152.4) 12 (304.8) 7/8 (22.2) 12 400 (542.3) 275 (373)
8 (203.2) 16 (406.4) 1 (25.4) 16 600 (813.4) 425 (576.2)
10 (254) 20 (508) 1.12 (28.5) 20 1000 (1355.8) 700 (950)
12 (304.8) 24 (609.6) 1.25 (31.7) 20 1400 (1898.1) 1000 (1355.8)
8. Close the blowdown valve at the bottom of CRS.
9. Open the isolation valves.
6.4 Clean the magnetic insert
6.4.1 Close the isolation valve
1. Before closing the isolation valves, check the following parameters:
– The system water is allowed to reach a safe handling temperature.
– The separator to reach a zero pressure condition.
2. Close the isolation valves to isolate the CRS from the system.
6.4.2 Remove the magnetic insert
WARNING: STRONG MAGNETIC FIELD
This product may contain strong magnets which can be harmful to pacemaker wearers and
others with medical implants. Those with implanted medical devices must stay back 36 in
(90 cm). Keep tools and other loose metal objects away. The magnets in this product are
strong enough to pull them from your hand or can cause a loss of balance. To avoid
damage, keep magnetic media such as computer discs, credit cards, and tapes away.
Failure to follow these instructions could result in serious personal injury, death, and/or
property damage.
6 Maintenance
12 CRS Instruction Manual