Manual
5
2. Installation Tips
2.1 Check the Shipment
A standard Pulsafeeder shipment includes the pump, PULSAlube oil, wrenches, instruction and parts list
packet as well as replacement parts if ordered. Unpack carefully, check packing list and make sure all parts
are received. Check voltage of electric motor against the service to be used.
2.2 Locating the 680 Pumps
PULSAFEEDER pumps are designed to operate under indoor atmospheric conditions. It is desirable to
provide a hood or covering for outdoor service. Alternate oil or external heating is required if ambient
temperatures will be below 40
◦
F (4.4
◦
C). Check with factory if fluid temperatures entering the pump will be
below 40
◦
F (4.4
◦
C).
1. Check level of pump. Shim where necessary.
2. Securely bolt to foundation. Do not
distort base.
3. Check motor alignment, reagent head, and valve bolt tightness before operation. Follow bolt torque
readings carefully.
NOTE: Most 680 models will operate without bolting down. However, it is important to have a solid
and level foundation so that a minimum of vibration is evident. Continual vibration can loosen
gaskets and pipe connections.
2.3 Flooded Suction Desirable
Installation will be simpler to operate if the liquid will flow to the pump by gravity. Wherever possible, the
pump should be located below the level of storage vessel.
2.4 Discharge Pressure
All 680 models are designed for continuous service at the rated discharge pressure. To prevent liquid flow
through, it is necessary that discharge pressure be at least 5 psi above suction pressure. When pumping
downhill, a back pressure valve should be placed in the discharge line.
2.5 Piping
Pipe size and length are critical to proper operation of any metering pump. A restricted discharge or starved
suction condition spells immediate failure to any metering pump installation. A separate brochure entitled
“Designing a Successful Metering Pump Installation” is provided to assist engineers responsible for piping
system design. Copies are available upon request (Technical Sheet 304). Inlet piping must be at least equal in
size to pump inlet connection.