ACCA 344 Progressive Cavity Pump
Complete progressive cavity pump for supported Moyno® 344 Series replacement applications.
Supported configurations: 34401, 34404, 34408 and 34411.

344 Pump Specifications
| Maximum discharge pressure | 40 psig |
|---|---|
| Suction port | 3/4 in NPT; 34408 uses 1 in NPT |
| Discharge port | 3/4 in NPT |
| Maximum speed | 1750 RPM, subject to viscosity limits |
| Standard stator | NBR (Nitrile) |
| Alternate stators | EPDM and FPM |
| Rotor options | 416 stainless steel or 316 stainless steel |
| Bearings | Sealed ball bearings |
344 Configurations
The 344 family includes 34401, 34404, 34408 and 34411. The 34411 configuration uses a packing-gland arrangement; other supported configurations use mechanical-seal construction.
Temperature and Viscosity Limits
Elastomer temperature limits are 10–160°F for NBR, 10–210°F for EPDM and 10–240°F for FPM. Maximum viscosity is 20,000 cP, with allowable operating speed decreasing as viscosity increases.
Operating Notes
Do not run dry. Maintain at least 10% of rated flow for lubrication. With wetted elements, suction lift can reach 25 ft at 1750 RPM when piping matches port size.
344 Replacement Parts
ACCA supports complete pumps plus stators, rotors, flexible joints, shafts, bearings, mechanical seals and packing components.
Need a 344 Replacement Pump?
Send ACCA the complete installed model number and application conditions.
Moyno® is a registered trademark of its respective owner. ACCA Pumps is independent; model references identify compatible replacement applications.
