Johnson Pump SPX FLOW TopGear GM, Instruction Manual

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A.0500.601 – Atex IM -TG G/H/MAG/SRT/08.00 EN (01/2021)
1.6.2 II 2G allowable temperature TG MAG
ISO EN 80076-36
Temperature class
T
max
Pumped medium
temperature T
A
Heating medium T
A
(if any)
Separation can
temperature (L2)
Bearing bracket
temperature (L3)
S-jacket T-jacket
T4 - 135°C ≤ 100°C ≤ 100°C ≤ 100°C ≤ 120°C ≤ 100°C
T3 - 200°C ≤ 160°C ≤ 160°C ≤ 160°C ≤ 180°C ≤ 100°C
T2 - 300°C ≤ 250°C *) – ≤ 250°C *) ≤ 270°C ≤ 160°C **)
T1 - 450°C ≤ 260°C *) – ≤ 260°C *) ≤ 280°C ≤ 160°C **)
(*) temperature to decrease according to material limits (see IM).
(**) special bearing construction required, please contact SPX or your local distributor
•
When the temperature limits are reduced because of internal materials selection, the
maximum allowable surface temperature T
max
will be supplied instead of the
temperature class, the same way as in case of D, dust protection.
•
For T5 (100°C) and T6 (85°C) classes and if ambient temperature exceeds the range
-20°C / +40°C contact your distributor.
1.6.3 II 2(G)D allowable temperature TG GS, GP, GM, H and SRT
The maximum surface temperature (T
max
) is indicated on the name plate.
T
max
is determined as the lowest temperature derived from following equations:
• T
max
= temperature limits of selected internal materials (i.e. pump selection).
• T
max
= T
5mm
- 75°C (T
5mm
“ignition temperature of a dust layer of 5 mm thickness”)
• T
max
= 2/3 x T.
CI
(T
CI
“ignition temperature of a dust cloud”).
Remark:
T
5mm
and T
CI
are to be determined by the customer/user in case of dust (D) protection.
In case the ambient temperature exceeds the range of -20°C / +40°C contact your
distributor.
Maximum surface
temperature
Pumped medium
temperature T
A
Heating medium T
A
(if any)
Bearing bracket
temperature (L3)
T
max
T.class *) S-jacket T-jacket
135°C (T4) ≤ 120°C ≤ 120°C ≤ 120°C ≤ 100°C
170°C (T3) ≤ 150°C ≤ 150°C ≤ 150°C ≤ 120°C
200°C (T3) ≤ 180°C ≤ 180°C ≤ 180°C ≤ 120°C
220°C (T2) ≤ 200°C – ≤ 200°C ≤ 160°C
240°C (T2) ≤ 220°C – ≤ 220°C ≤ 160°C
260°C (T2) ≤ 235°C – ≤ 235°C ≤ 160°C
280°C (T2) ≤ 250°C – ≤ 250°C ≤ 160°C
300°C (T2) ≤ 270°C – ≤ 270°C ≤ 180°C
330°C (T1) ≤ 300°C – ≤ 300°C ≤ 180°C
*) corresponding temperature class of Gas protection indicated on the nameplate between brackets
•
TG GS, GP, GM, can be used in a temperature range between -20ºC and +40ºC.
•
TG H in stainless steel execution can be used in a temperature range between -40ºC
and +40ºC; materials other than stainless steel can be used in the temperature range
between -20ºC and +40ºC.