Drop Pipe5.3
PS pump systems can be installed using the same
pipe components that are used for conventional
submersible pumps. Use pipe with a sufficient pressure
rating, with coupling components that are designed to
handle the weight of the entire assembly.
Torque arrestor It is NOT REQUIRED. (softstart motor
system.)
Size of pipe A long line of undersized pipe will reduce the
performance of the system. Proper selection of pipe size is
based on the maximum flow rate and the total length of
pipe from the pump to the pipe outlet or tank. Refer to the
pump specifications at the end of this manual to determine
the peak flow rate for the system you are installing. For
sizing of a long pipe line, refer to section 13.3
CAUTION Do not assemble iron, steel,
or galvanized pipe components in
metallic contact with brass or copper.
This will cause rapid electro-chemical
corrosion.
CAUTION If polyethylene (black
flexible) pipe is to be used, see
section 7.3
CAUTION Screwing a metal pipe
component into a plastic reducer
bushing may cause the bushing to
crack, sooner or later. If you use a
plastic reducer bushing, reinforce it with a hose
clamp (all-stainless steel) as shown in the photo.
Tighten the clamp first, then handtighten
WARNING Do not use a rope winch to
install or remove a pump in a drilled
well casing. Do not use a vehicle to
install or remove a pump. See section
7.3
Hose clamp to reinforce Figure 16:
a plastic reducer bushing
Water Pipe Sizing Chart It is often wise to make buried
pipelines extra-large, in case a larger pump is desired in the
future. Reduced drop pipe size should be considered in the
following situations:
sandy water conditions1. – especially with a solar-
direct system. The flow will be very slow on cloudy
days. This may cause sediment to accumulate in the
drop pipe. Smaller pipe will increase the flow velocity
and helps exhaust the sediment. See section 6.7,
Coping with Dirty Water Conditions
hand installation2. – to reduce the weight, espe-
cially for removal when the pipe is filled with water.
Balance these advantages against the increased friction
loss in smaller pipe. You can use a pipe size that is smaller
than the pump outlet by using a reducer bushing. Horizon-
tal pipes can be larger.
PS Pump Systems have a stainless steel outlet fitting. It is
compatible with iron, steel, galvanized, bronze, brass, or
any plastic pipe components.
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