Specifications

2. MAXIMUM PUMP RATINGS

The maximum pressure, speed, and temperature limits for this pump SERIES are shown below.

The maximum rating of a pump with a SPEC number may be different depending on the materials of construction.

Maximum limits for this SERIES:

Pressure

125 psi [862 kPa] Maximum Inlet

125 psi [862 kPa] Maximum Discharge

Speed

750 rpm Maximum

Temperature

Mechanical Seal Pumps: 212°F [100°C]

Packed Box Pumps: 250°F [121°C]

3. PREOPERATION CHECKS

Read and understand the instructions and recommendations contained in this manual.

Disconnect the coupling between the driver and pump.

Test the rotation of the driver to make sure it will operate the pump in the desired direction of rotation. Rotation is shown

on the pump faceplate if the pump has an integral relief valve. When an integral relief valve is used, make sure it is

positioned and adjusted as discussed in Section 5, DIRECTION OF ROTATION AND RELIEF VALVES. After the unit is

mounted and the piping is connected, the pump should be checked to be sure it operates freely without binding. After

operation is proved satisfactory, both pump and driver should be tightly secured and the alignment rechecked before

operation.

Before starting, make sure all guards are in place and the inlet and discharge valves are opened.

After starting the unit, check to see that the pump is delivering liquid. If not, stop the driver immediately and correct the

problem. After the pump is delivering liquid, check the unit for excessive vibration, localized heating, and excessive shaft

seal leakage. Check the pressure or vacuum by installing gauges at both the inlet and discharge sides of the pump to

make sure the pressure or vacuum conforms to specifications.

WARNING

If there is no pressure relief device in the system, NEVER

block the discharge line. If there is a relief valve in the system,

NEVER block the discharge line between the relief valve and

pump. High pressure will occur, resulting in possible damage

or breakage to the pump or system parts and possible injury to

personnel. DO NOT operate the pump for more than one

minute with the discharge line blocked downstream of the

relief valve. Rapid heating and possible damage will occur.

Even an open discharge line does not prevent the possibility

of high pressure. Discharge line length, diameter, and

arrangement along with fluid viscosity and velocity also can

create a high-pressure situation at the pump.