Flowtite pipelines have been used as penstocks for hydroelectric power plants since the early 1970s. From low pressure, large diameter Kaplan systems to medium range, Francis turbines or high pressure Pelton wheels, Flowtite pipes, joints and fittings have enjoyed great success in penstock applications all around the world.
The water hammer pressure, also called pressure surge, is the sudden rise or fall in pressure caused by an abrupt change in the fluid velocity within the pipe system and it is an important value in penstock calculations. It is worth noticing that, for the Flowtite pipe systems, a hammer pressure of approximately 50% of that for steel and ductile iron pipe is expected under similar conditions. Our GRP pipes have a surge pressure allowance of 40% of the nominal pressure. We offer you penstock lines from DN 100 to DN 4000 in pressure class PN 6 to PN 32 and stiffness up to SN 10000
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