Methanator Maintenance Considerations - Siemens Maxum II Manual

Figure 4-10
(Both Versions) As protection measure, the gas inlets and outlets that enter and leave the
methanator are configured as flame arrestors (refer to figure 4-8 and 4-9). In addition, both
versions of the methanator assembly are insulated to prevent the surface temperature of the
methanator from exceeding 180°C (surface temperatures for the explosion proof/flameproof
methanator are significantly lower than 180°C).
4.4.2

Methanator Maintenance Considerations

(Purged Methanator) The methanator should be inspected regularly to ensure there is no
physical damage affecting the integrity of the protective cover and to verify that the protective
cover is fastened securely in place. The conduit pipe should be attached snugly in accordance
with local safety practices. Seals for pipe and cover should fit securely to prevent excessive
escape of purge air from around the device.
(Explosion Proof Methanator) The methanator should be inspected regularly to ensure there
is no physical damage to the enclosure and to verify the screw-on cap is fully tightened.
(Both Versions) All gas connections must be made through the tubing that is supplied from the
factory and is part of the methanator assembly. In addition, tubing connections are equipped
that allow purge air to flow through the methanator into the oven. All tubes from the methanator
are designed as flame arrestors of specified length and internal diameter. This tubing should
Explosion Protection Safety Standards
Manual, August 2017, A5E02220442001 Rev 8
Explosion Proof Methanator
Valves, Detectors, and External Systems
4.4 Methanator
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