ACCA 4AK345 Progressive Cavity Pump
Four-stage 345 configuration using the K drive end for supported Moyno® 4K345 G1 installations.
The 4AK345 is the four-stage K-drive member of the 345 family, with matching 10-inch process connections and the largest documented 345 installation envelope.
4AK345 at a Glance
4 Stages
Four-stage 345 arrangement.
K Drive End
K-family drive end.
345 Element
Element 345 reference available.
10 in × 10 in
Matching process flanges.
Understanding the 4AK345 Model Code
4 · Pressure Class
Four-stage configuration rated up to 350 psi.
K · Drive End
K drive end rated up to 54.0 HP per 100 RPM.
345 · Pumping Element
Element displacement: 340.0 GPM per 100 RPM.
G1 · Pump Type
Standard G1 configuration.
Additional Nameplate Configuration Codes
The remaining nameplate characters identify the body material, internal material, stator material, sealing arrangement, shaft/internal variation and rotor variation. Confirm the complete nameplate and operating duty before selecting replacement components.
4AK345 Dimensions and Installation Envelope
The 4AK345 measures 245.06 inches at A, 195.25 inches at B and weighs approximately 4,220 lb. Its size makes lifting, base condition, coupling alignment and independent piping support important replacement considerations.
| Model | A | B | D | E | H | W | Suction | M | Discharge | M1 | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4AK345 | 245.06 | 195.25 | 13.00 | 23.50 | 3.88 | 17.00 | 10 in | 16.00 | 10 in | 17.50 | 4,220 lb |
Dimensions in inches unless noted. Verify final installation dimensions against order documentation.
4AK345 Performance Curve
Element 345 Performance Curve
View or download the Element 345 performance curve for capacity, speed and operating-reference information used when evaluating the 4AK345.
Performance and Selection
The Element 345 reference includes 4K345. Final sizing should review flow, differential pressure, viscosity, solids, temperature, suction conditions and speed. Use pressure protection and avoid dry running.
Stator Material Options
Available stator materials include Nitrile, Urethane, Natural Rubber, EPDM, Fluoroelastomer, and special application materials. Final material selection should be based on fluid compatibility, temperature, abrasion, and operating conditions.
Need Parts for a Moyno® K Drive End?
ACCA supports aftermarket K drive-end and 345 pumping-element service parts.
Specify an ACCA 4AK345
Send the complete 4K345 G1 nameplate and operating conditions for replacement review.
Engineering Context for the 4AK345
The 4AK345 combines the 345 element at 340.0 GPM per 100 RPM with the K drive end rated to 54.0 HP per 100 RPM. Its four-stage 350 psi class joins very high displacement with the largest drive-end family represented in these G1 pages.
Technical Resources
2000 Series · Cross Reference · Nameplate Guide · Applications
Moyno® is a registered trademark of its respective owner. ACCA Pumps is not affiliated with or endorsed by Moyno. Brand and model references are used solely to identify aftermarket compatibility and replacement applications.