Sandpiper HDF4-A, Service & Operating Manual

hdf3asl7sm-rev1218

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Model HDF3-A/HDF4-A • 

3

Temperature Tables

Ambient Temperature 

Range [°C]

Process Temperature 

Range [°C]

1

Temperature 

Class

Maximum Surface Tem-

perature [°C]

-20°C to +60°C

-20°C to +80°C

T5

T100°C

-20°C to +108°C

T4

T135°C

-20°C to + 160°C

T3

T200°C

-20°C to +177°C

(225°C) T2

Table 1.  Category 1 & Category 2 ATEX Rated Pumps

Ambient Temperature 

Range [°C]

Process Temperature 

Range [°C]

Temperature 

Class

Maximum Sur-

face Temperature 

[°C]

Options

Pulse Output 

Kit

Integral Solenoid

-20°C to +60°C

-20°C to +100°C

T5

T100

X

-20°C to +50°C

-20°C to +100°C

T5

T100

X

Ambient Temperature 

Range [°C]

Process Temperature 

Range [°C]

-20°C to +60°C

-20°C to +150°C

1

Per CSA standards ANSI LC6-2018 US & Canadian Technical Letter R14, G-Series Natural Gas Models are restricted to (-20°C to + 80°C) process temperature

Note: The ambient temperature range and the process temperature range should not exceed the operating 

temperature range of the applied non-metallic parts as listed in the manuals of the pumps.

2

ATEX Pulse output or Intergral Solenoid Not Available For All Pump Models See Explanation of Pump Nomenclature / ATEX Details Page

Table 2.  Category 2 ATEX Rated Pumps Equipped with Pulse Output Kit or Integral Solenoid:

Table 3.  Category M1 ATEX Rated Pumps for Mining