Intended Use (Atex-Specific); Special Conditions (X) - Mankenberg UV 5.1 ATEX H2 Betriebsanleitung

Supplement to the Operating Instructions for
Back pressure regulators UV 5.1 ATEX H2

13.4 Intended use (ATEX-specific)

Dust deposits on the surface
Use in potentially explosive atmospheres from dust/
air
Flames and open fire
Lightning, ionizing as well as electro-magnetic
radiation and electrical compensating currents /
cathodic corrosion protection
Hazardous area (ATEX marking)
The operator must ensure that the grounding of the valve is integrated into the system piping.
The valve is neither a protective system nor is it a safety device in accordance with the ATEX
directive 2014/34/EU (chap. 1, art. 1, 1b).
Caution

13.5 Special conditions (X)

» The max. surface temperature of 155 °C refers to the max. permissible operating temperature of 130 °C
taking into account the ATEX safety margin of 25 °C.
– The valve is suitable for applications with temperature classes above 155 °C (T3 to T1) because the
max. surface temperature of 155 °C is lower than that of temperature classes T3 to T1.
– Applications with temperature classes below the surface temperature of 155 °C (T6 to T4) are possible.
In such a case, the ATEX safety margin of 25 °C (self-heating of the device and tolerance) must be
deducted from the relevant max. surface temperature of the selected temperature class in order to
determine the max. permissible operating temperature for the Ex-area.
» Ambient temperature range Ta: -20 °C up to 130 °C
» Pressure surges are not permissible! Effective ignition sources from adiabatic compression must be
prevented!
» Operator must take measures to avoid the explosive atmosphere or mixture inside the valve
UV 5.1 ATEX H2-4.X.22.5 Issue 21.12.2022
not permissible
not permissible
not permissible
not permissible
1 = product group II.
2 = product category 2 (for zone 1 or zone 2)
3 = for gases (G)
4 = ignition protection type: none (h)
5 = explosion group: gases (IIB+H2)
6 = max. temperature of the exposed surface
(temperature class), does not depend on the device
7 = EPL "Equipment Protection Level" (Gb)
8 = see chapter Special conditions (X) [} 24]
24
www.mankenberg.com