Method for making a joint between a main pipe and branch pipe and apparatus for use in the method
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Method and connecting device for connecting a branch line to a fluid-carrying main line
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Gas house entry
ATA33391A
Shut-off device for conduits carrying flammable fluids
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Shut=off device for combustible fluid piping - includes expandable insert for emergency sealing
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Steel and plastic pipes joint at entry to house - steel internal pipe has rediced end profile around which plastic network pipe is formed by steel sleeve and external protective sleeve
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Device for shutting off gas supply lines to ensure safety
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Service pipe, in particular for gas supply
DE3446494A1
Wall bushing, especially a house entry, for plastic water pipes
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Plastic tube for passages through walls, process for its production and use for leading gas lines into houses
