Special unions
The following types of union are spray-proof in case of leakage even without covers and have been con‐
firmed as being SOLAS-compliant by GL and DNV.
Plug-in pipe union
Design precludes lateral spray as the parting line is shielded by the sleeve (4).
Only seepage along the pipeline is possible whereby the pressure is greatly reduced by a faulty O-ring
(3).
The union is confirmed as being SOLAS-compliant by DNV and GL.
Plugs and sensors
Screw-in plugs (2) are sealed toward the outside either with a copper sealing ring (1), according to DIN,
or an O-ring (ISO).
The fluid must first pass the thread in case of a loose threaded union or faulty sealing ring (2).
The pressure is so greatly reduced by this and the faulty sealing ring (2) that any leakage is not under
pressure.
MW15550/06E 2012-02 | General Information | 25
TIM-ID: 0000002178 - 005
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