This appraisal covers a PN1 DN 150 x dn 100 stainless steel sewer OB junction clamp. This product enables installation of new permanent service connections to existing PVC-U, VC or AC sewer mains.
The 45 degree offtake is fitted with a DN 100 PVC-U compatible solvent weld socket for connection to a PVC-U service pipe. Clamps with 90 degree offtakes are also available. Derwent offers a larger range of OB clamps; however, type testing has only been completed for the DN 150 x dn 100 clamp at this time. Details are provided in Section 3.
The stainless-steel clamps are manufactured from Grade 316 stainless steel with a full circle nitrile rubber seal.