Pulsafeeder Pulsa Series 680 EN - Manual (Page 23)

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Difficulty Probable Cause Remedy
Piping Noisy 1. Pipe size too small.
2. Pipe runs too long.
3. Surge chambers full of liquid.
4. No surge chambers used.
1. Increase size of piping, install
PULSAtrol.
2. Install PULSAtrol in line.
3. Recharge with air or inert gas,
replace diaphragm and recharge
4. Install PULSAtrols-pulsation
dampeners
Motor Overheats
pump design 1. Pump overloaded
2. Oil too viscous
3. Low voltage
4. Loose wire 1. Check operating conditions against
2. Consult factory
3. Check power supply
4. Trace and correct. Check no load
amps.
7. PULSAtrol Installation, Operation and
Removal Instructions
The PULSAtrol is a pneumatically charged diaphragm type chamber that continuously stores energy. Used on the
inlet it will improve NPSH
a
(NET Positive Suction Head available) characteristics of the suction piping system.
On the discharge line it will reduce dangerous peak pressures, eliminate shock waves and if of sufficient volume,
will reduce pulsation flow to almost linear.
7.1 Installation
(Figure 16 a and b)
On both discharge and suction lines it is desirable to mount the PULSAtrol as close to the pump connection as
possible. It can be mounted in any position, but vertical is preferred for ease of charging, draining and servicing.
The air chamber is sealed and will not require replenishing regardless of position. A shut off valve should always
be used between the piping system and PULSAtrol; also a drain valve should always be installed directly below
the PULSAtrol. If the discharge line is open to atmospheric pressure then a back pressure valve should also be
incorporated in the system near the PULSAtrol to assure proper operation.