Large Diameter Case Study
Overview Case Studies![](/m/507eac2cd3684/thumb/spec/640_268_scale/Viking_Johnson_FlexLock_Knostrop_WWTP.jpg)
Large Diameter - WWTP - Knostrop
Client: Yorkshire Water
Contractor: Laing O' Rourke
Project: Water treatment works -large diameter flange adaptors & couplings DN1800
Client: Yorkshire Water
Contractor: Laing O' Rourke
Project: Water treatment works -large diameter flange adaptors & couplings DN1800