4.9
Pump Discharge Requirements
CAUTION
: The pump maximum discharge pressure is based on the fluid end plunger diameter. This is due to
the pump’s maximum safe rod load of 106,029 pounds. Even if the pump is rated for a higher pressure than its
intended well service use, a pressure relief valve is required as part of an operational system. If the discharge
line is suddenly blocked, the pump may overpressure which can result in personal injury, death, equipment
damage, and loss of well control. Never operate this MSI pump without a suitable pressure relief device set for
the maximum pressure that the well service pump and all connected piping and equipment can be safely
operated. Do not place a valve between the MSI well service pump outlet and the pressure relief device.
4.10
Pump Safety Precautions
All moving parts should be covered by guards which are adequate to keep operators or maintenance personnel
from coming in contact with moving parts. An approved pressure relief device shall be installed and maintained
as near to the pump outlet as possible. Oil temperature and pressure warnings and/or shut-offs shall be used to
prevent equipment damage due to failed bearings in the power train. Adequate chemical fire extinguishers
should be installed near the approach to the pump. Failure to heed these precautions can result in equipment
and personnel damage or injuries.
4.11
Preparing Pump for Use
Prior to operating the pump, check all connections, electrical instrumentation connections, fluid piping
connections, and mechanical drive connections. Ensure that all safety guards are in place and secure. Verify
that the discharge and suction flow paths are open and not dead-headed. Be sure a pressure relief device is
properly installed and set to the right relief pressure and that nothing is blocking the relief flow line.
For start-up and shut-down procedures, see
Section 6
.
Revision K 03/12/2019
MSI - A Division of Dixie Iron Works, Ltd. All rights reserved.
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