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Westatlantic Class HDPE  Penstock type WA-PRA-G.

Application: For flow control in sewer systems, waste water treatment plants, settling ponds.

Standard pressure: 5 meter water column on- and off-seating pressure from bottom of invert., Higher pressures on request.

Penstocks materials are combination of HDPE and 316L stainless steel.

WA-PRA-G HDPE Penstock Gate Valves are control gates that regulate water flow. They are used for blocking or controlling the flow.

Standard penstock valves are available in many sizes. They meet pressures up to 16ft. (5 meter) water column both on - and off seating.

Higher water pressure models are available.

Penstocks can also be supplied for rectangular openings, with or without a flush invert bottom.



View installation Video

Available for all pipe and opening sizes: contact Westatlantic

HDPE Penstock specification sheet

Installation Sheet Penstock

Introduction To HDPE Penstock Gate Valves

Penstock Valve Generic drawing


HDPE penstock sealing system

An important advantage of our system is the special EPDM rubber lip profile sealing. The shape of this rubber makes it possible for high pressure on both sides. A reliable sealing system which results in one percent of the allowable by-pass of the American standard for cast iron penstocks - AWWA C 501

Penstocks are supplied as a self-contained units, which do not require assembly or adjustments on site. It is ready for operation, easy to install.. Wall smoothness before installation is important to obtain the best watertight properties. After installation, no wedge adjustments are needed.


Contact us: Westatlantic Tech Corp., 902 455 4455

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USA and Canada HDPE penstock Valves. USA: Texas, TX, Florida, FL, Miami, Keys, Louisiana, LA, Alabama, AL, Mississippi, MS, Ohio, Illinois, PA, South Carolina, SC, North Carolina NC, Wisconsin, WI, Milwaukee. Canada: Alberta, AB; Edmonton, Fort McMurray Calgary, Fort Nelson, Grande Prairie, Lioydminster, Red Deer, Lethbridge, British Colombia, BC; Kelowna, Vancouver, Prince Rupert, Kitimat, Terrace, Fort St John. Saskatchewan, SK; Regina, Saskatoon, Prince Albert, Estevan, Swift Current. Manitoba MB; Winnipeg, Thompson. Ontario, ON; Oakville, Toronto, London, Ottawa, Hamilton, Mississauga. Quebec: QC; Montreal, Quebec City, Trois-Rieviers, Val-d'or, Chebougamau, Sherbrooke. New Brunswick, NB, Nova Scotia, Newfoundland Labrador, NL. Including Saint John, Moncton, Halifax, Sydney, St John's,