Pump-solutions-group Neptune Series 500 MODEL 481 THRU 547 Manuel d'utilisateur télécharger pdf (Page 7)

SECTION II

INSTALLATION INSTRUCTIONS

1.0 GENERAL

1.0.1 When unpacking a pump or chemical feed system, be certain that no parts are thrown away.

Examine the equipment for possible damage. If damage has occurred, file claim with the common

carrier within 24 hours. Neptune will assist in estimating the repair costs.

1.0.2 The ‘‘dia-Pump’’ should be located so as to avoid an ambient temperature above 120°F, 50°C. Free

air circulation is important when considering the location of the pump.

1.0.3 The ‘‘dia-Pump’’ should be located on a level surface. Three mounting holes are provided to anchor

the pump securely to the mounting surface. PVC head pumps must be mounted on three, one-inch

spacers provided.

1.0.4 All piping to the pump should be supported to prevent stress on the pump input and out-put fittings.

1.0.5 Before connecting the pump, make sure that all fittings are completely clean by flushing thoroughly.

Any foreign matter entering the pump can damage the internal parts and severely limit the life of the

pump.

1.0.6 A ‘‘Y’’ STRAINER MUST BE INSTALLED IN THE SUCTION LINE OF THE PUMP TO INSURE

AGAINST FOREIGN MATTER ENTERING THE PUMP. ALL SUCTION LIFT APPLICATIONS

REQUIRE A FOOT VALVE STRAINER TO PREVENT LOSS OF PRIME, AND TO PREVENT

FOREIGN MATERIAL FROM ENTERING THE PUMP.

1.0.7 Shut-off valves and unions should be placed in the suction and discharge lines to facilitate servicing

the pump.

1.0.8 Care should be exercised when piping to PVC head pumps. In cases where vibration or stress is

unavoidable, flexible connections should be used.

1.0.9 The electrical supply to the pump must match the motor name plate characteristics. The motor

rotation is counter clockwise when viewed from the top of the motor, looking down on the pump.

(See Figure 1).

1.0.10 Discharge Piping should be the same size or larger than the discharge connection. Suction Piping

should be one size larger than the suction connection (1/2” pipe minimum). Limit the total length of

the suction line to 3-4 feet suction lift or 6-7 feet flooded suction. Minimum bends, elbows, or other

restrictions.

Important

On single phase integral motors, the rotation is set at the factory and must not be changed.

On three phase integral motors, rotation is determined by noting the fan rotation.

On some flange mounted motors, the motor rotation may be viewed by removing the cap on

the side of the flange. There is no viewing port or coupling access on the close coupled

flange mount motors. Rotation is checked by removing the oil fill plug an observing the gear.

Correct rotation is indicate by the gear teeth moving downward away from the oil fill hole.

Please note Figure 1, indicating the correct rotation. (An arrow on the gear box also indicates

proper rotation.) Operation with the incorrect rotation will damage the pump and motor.

Models 481 and 501 must be installed with a flooded suction. These models will not operate with

suction lift.

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Pump-solutions-group Neptune Series 500 MODEL 481 THRU 547 Manuel d'utilisateur Page 7