This schedule specifies the requirements for the type FA flexible saddle manufactured by Fernco Group for the in situ connection of laterals to gravity sew-ers with a wall thickness of 50 to 150 mm.It is applicable to the connection of DN150 laterals to DN375 – DN1500 gravity sewers and the connection of DN 200 laterals to DN 450 – DN 1500 gravity sewers.
The FA saddle enables a secure and leaktight lateral connection to be made to a larger sewer without the need to excavate and disturb the bedding.
A cored hole is required having a diameter of 172 mm for the FA 150B and 232 mm for the FA 200B and can have a deflection on the lateral of 15 degrees.The internal diameter of the main pipe can range from 375 to 1500 mm for the FA 150B and from 450 to 1500 mm for the FA 200B. The wall thickness of the sewer can range from 50 mm to 150 mm for both saddle sizes. The saddle can be used with solid walled lateral pipes of any pipe material. It is however, most suitable for: concrete, vitrified clay, fibre cement. An elastomeric bush may also be required for connecting to some sewer pipe materials.
Full details can be found in the Assessment Schedule.
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