This service manual outlines installation, operation and maintenance procedures for the flanged ”G4” models of Moyno 2000 pump. It covers topics such as installation, piping, foundation, shaft alignment, start-up and shutdown, packing adjustment and replacement, lubrication, and cleaning.
The Moyno 2000 Pump is a progressing cavity pump designed for reliable, pulsation‑free positive‑displacement flow. This service manual provides detailed information on the G4 enhanced feed models, including nameplate data, model numbering, frame and type designations, and trim codes.
It covers all aspects of installation, piping, foundation, shaft alignment, water‑flush packing, operation procedures, routine maintenance, disassembly, and parts replacement. Safety cautions, troubleshooting charts, and parts lists are included to assist service technicians in keeping the pump running efficiently.
| Pump type | Progressing cavity pump |
|---|---|
| Normal rotation direction | Clockwise |
| Suction housing material code | C = Cast Iron |
| Drive shaft material code | D = Alloy steel |
| Stator material code | Q = Nitrile (70 Durometer) |
Normal rotation of Moyno 2000 pumps is clockwise.
Flow rate should be approximately ½ - 2 GPM.
Suction piping should be as short as possible and normally the same size as the pump suction.