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User Manual
ATEX / UKEX Certified Variable Axial Piston Pumps for Industrial Applications – PVM 18 – 141 cc
Technical Information
ATEX / UKEX Technical Specifications
T-Codes and Maximum Surface Temperature
Vickers by Danfoss | January 2024
The technical specifications in this chapter are supplemental for ATEX / UKEX systems only. For
comprehensive technical specifications, including maximum pressure rating, maximum flow, etc. please
refer to the standard PVM Technical Information and Technical Catalog documents.
Danfoss does not claim responsibility for the use of the pumps in operating conditions not allowed
according to the information shown in this document and the standard PVM Technical Information
documents.
Painting or coating can be an electric insulator if a thickness greater than 200 µm is applied. The thickness
of the painting of original DPS paint is less than 200 µm. If the customer chooses to add an additional
layer of paint, the total layer thickness cannot exceed 200 µm.
The pumps are approved only for correct and proper use in accordance with their designated purpose, in
standard industrial atmospheres. Contravention of such conditions voids any warranty claims and any
responsibility on the part of the manufacturer.
Gaseous Environment (G)
Table 1: Temperature Classes at Maximum Ambient and Oil Temperatures
Maximum Oil Temperature (at
Inlet)
≤ 20 °C [68 °F]
≤ 40 °C [104 °F]
≤ 60 °C [140 °F]
≤ 80 °C [176 °F]
Table 2: T-Codes with respective Maximum Surface Temperature
T-Code /
Temperature Class
T3
T4
To ensure that the surface temperature will not exceed the allowed value according to the used
temperature class, it is recommended to attach a suitable temperature sensor to the pumps in the shown
area on one of the central surfaces at the bottom side of the pumps.
Figure 3: Recommended Location to attach Temperature Sensor
Max. Ambient Temperature
≤ 40 °C
≤ 104 °F
T4
T4
T4
T4
Maximum Surface Temperature
°C
200
135
≤ 60 °C
≤ 140 °F
T4
T4
T4
T3
°F
392
275
BC479055194216en-000101 | 7
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