“Hotspot” for Stainless Steel Doors: Powell River WWTP (Canada) Receives 6 HUBER Pressure-Tight Doors TT7

Proven products from the Safe Access Solutions (SAS) business unit for Canada: HUBER is supplying a total of 6 Pressure-Tight Doors TT7 for the new wastewater treatment plant in Powell River in the Canadian province of British Columbia. The region around the Canadian metropolis of Vancouver, located in the southwest part of the country on the border to the United States, has become a “hotspot” for HUBER products such as stainless steel pressure-tight and access doors.


HUBER had received the order in June 2021 from the responsible contractor Graham Construction. The project was secured after early collaboration with the responsible engineer and the Canadian company BowRio Water Technologies. The contractor reported that there were no problems with the product, neither leaks nor problems with the stainless steel workmanship or dimensions. The doors were easy to install – overall, HUBER stainless steel doors are a “great product”. HUBER has been fortunate enough to work with Graham Construction on many other projects as well, and we look forward to continue that partnership.

Aerial view of Powell River wastewater treatment plant (© City of Powell River).
Aerial view of Powell River wastewater treatment plant (© City of Powell River).

Six HUBER Pressure-Tight Doors TT7 as new access points

The scope of supply includes 6 HUBER Pressure-tight Doors TT7 measuring 800 millimeters x 1800 millimeters made of pressure-resistant 316 stainless steel. In the future, the doors will serve as access points to the plant’s bioreactors and aerobic digesters. The proximity to the sea and the harsh wastewater conditions made it necessary for the doors to be made entirely of 316 stainless steel. They must also withstand seven meters of pressure and have a central wheel latch that can be operated from both sides.

Compliance with state environmental regulations

The City of Powell River on the Sunshine Coast in Canada’s far southwest had already begun planning a new wastewater treatment plant in 2011. The plant would have to comply with (federal) environmental regulations, for which the city received funding from the Canadian government and the state of British Columbia in 2019.

$76 million project

The new Powell River wastewater treatment plant is a major project in which the city is investing $76 million. This new plant will combine all wastewater from the existing Westview, Townsite and Wildwood plants; the three plants will be decommissioned once the new Powell River plant is in operation.

One of the installed HUBER Pressure-Tight Doors TT7.
One of the installed HUBER Pressure-Tight Doors TT7.

Further projects in planning

The relationships that HUBER and its U.S. subsidiary HUBER Technology Inc. have built with engineering firms there have helped the HUBER brand become even more associated with stainless steel Access and Pressure-tight Doors in British Columbia. HUBER has many more projects in the pipeline and will continue to provide proven and innovative solutions in the future. The representative BowRio Water Technologies who helped secure this project is no longer in business. HUBER’s new representative in the western region of Canada is Ramtech.