Insulation Of The Pump In Cooling/Air-Conditioning Systems - salmson SIRIUX Série Manuel D'installation Et Mise En Service

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• The permissible tightening torques listed in the table below must not be
exceeded, even if screws of higher strength (
splintering can occur at the edges of the long holes. This causes the screws
to lose their preload and the flange connection can become leaky.
• Use screws of sufficient length. The screw thread must protrude at least one
thread turn beyond the nut (Fig. 3, item 2).
DN 32, 40, 50, 65
Screw diameter
Strength class
Permitted tightening torque
Min. screw length for
• DN32/DN40
• DN50/DN65
DN 80
Screw diameter
Strength class
Permitted tightening torque
Min. screw length for
• DN80
• Install appropriate flat gaskets between pump and counter flanges.
• Tighten the flange bolts crosswise in two steps to the prescribed tightening
torque (see Table 7.1.2).
• Step 1: 0.5 x permissible tightening torque
• Step 2: 1.0 x permissible tightening torque
• Check the flange connections for leaks.

7.1.3 Insulation of the pump in cooling/air-conditioning systems

• For applications in cooling and air-conditioning systems, commercially-availa-
ble diffusion-proof thermal insulation materials must be used.
CAUTION! Risk of damage to property!
If the diffusion-proof insulation is fitted at the site, the pump housing may
only be insulated up to the motor flange. The condensate drain holes must
remain unobstructed to ensure that condensate that develops in the motor
can drain without problems (Fig. 6). Condensate that accumulates in the
motor can cause an electrical defect.
66
Nominal pressure PN6
M12
4.6 or higher
40 Nm
55 mm
60 mm
Nominal pressure PN6
M16
4.6 or higher
95 Nm
65 mm
≥
4.6) are used, since otherwise
Nominal pressure PN10/16
M16
4.6 or higher
95 Nm
60 mm
65 mm
Nominal pressure PN10/16
M16
4.6 or higher
95 Nm
65 mm
Pompes Salmson 01/2013