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CSST for Gas
Burying in the ground
Q.) Can the corrugated pipe be buried in the ground without special protective measures?
A.) The CSST should be placed in a protective tube before burying in the ground.
Installation in screed
Q.) Can the system also be installed together with underfloor heating?
A.) If there is underfloor heating, installation is only possible below the insulation, separation of corrugated pipe and underfloor heating is recommended.
(Installation below the screed in the insulation is possible if there is no underfloor heating.)
Installation in supply shafts
Q.) When the CSST is installed in supply shafts, is it necessary to ventilate the shaft?
A.) As long as the CSST run in the supply shafts contains no joints, ventilation is not necessary.
Article number information
Article numbers for CSST are constructed as follows:
Prefix: 2 or 3 letters (here EWG)
DN: 2 numbers (here 20)
Length: 2 numbers (here 05)
e.g. 5 m Roll CSST in DN20 - EWG2005
Union Nuts
Determination of the necessary screw connections and seals
The DN specification of the CSST is used for determining the accessory parts.
Example: pipe size DN20 (nominal diameter 3/4") =
EWG20xx CSST
EV20 Union Nut (1" thread*)
ED20, EPDM20 or GR20 gasket