Installation manual
© 2014 EcoInnovation Ltd (NZ) Page 42
The pressure tapping kit (optional extra) allows you to insert a
quick release pressure fitting at points of interest. You will
need to drill and tap the pipes ¼ BSP to use these fittings.
When a reading is not being taken they can be plugged with a
length of solid tube supplied.
If turbine performance is less than estimated in the Advanced
Calculation tool, check that you have not installed an
undersized manifold by measuring the pressure loss across
the manifold.
Sharp elbows create as much head loss as a 1-2m of pipe length. If your penstock is 1000m
long a few fittings are of little consequence, but if you are on a short small diameter penstock
at a low head then this can result in significant power loss, multiple elbows are to be avoided
in small bore manifolds.
4.9.13. Pipe supports
Make sure the pipe is secured firmly just prior to the
turbine (note metal supports in picture). A large pipe full
of water can be heavy and may need support. You can
support the pipe by installing a wooden/steel post either
side of the pipe with a horizontal member above and
below the pipe to secure it. Bear in mind when securing
moveable pipes that you may wish to manipulate the pipe
itself during optimisation at set-up so as to find the best
jet position/angle.