ACCA 1AK620 Progressive Cavity Pump
Single-stage 620 configuration using the K drive end for supported Moyno® 1K620 G1 installations.
The 1AK620 combines a high-displacement 620 pumping element with the large K drive-end family. ACCA does not publish an Element 620 curve, so selection is based on the actual duty.

1AK620 at a Glance
1 Stage
Single-stage 620 arrangement.
K Drive End
Large K-family drive end.
620 Element
Duty-based performance selection.
10 in × 10 in
Matching process flanges.
Understanding the 1AK620 Model Code
1 · Pressure Class
Single-stage configuration rated up to 87 psi.
K · Drive End
K drive end rated up to 54.0 HP per 100 RPM.
620 · Pumping Element
617.38 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. Stator material options include Nitrile, Urethane, Natural Rubber, EPDM, Fluoroelastomer and special materials selected for the application. Confirm the complete nameplate before selecting replacement components.
1AK620 Dimensions and Installation Envelope
The 1AK620 measures 140.19 inches at A, 90.38 inches at B and weighs approximately 2,850 lb. Lifting planning, base condition, coupling alignment and pipe support are important for a pump of this size.

| Model | A | B | D | E | H | W | Suction | M | Discharge | M1 | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1AK620 | 140.19 | 90.38 | 13.00 | 23.50 | 3.88 | 17.00 | 10 in | 16.00 | 10 in | 16.00 | 2,850 lb |
Dimensions in inches unless noted. Verify final installation dimensions against order documentation.
Performance Selection for the 620 Element
No neighboring element curve is substituted. Send required flow, differential pressure, fluid viscosity, solids loading, temperature, suction conditions and intended speed for application-specific review. Protect the positive-displacement system against closed-discharge operation 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 repair components, rotors and stators for supported 2000 Series configurations.
Specify an ACCA 1AK620
Send the complete 1K620 G1 nameplate and operating conditions for duty-based replacement selection.
Engineering Context for the 1AK620
The 1AK620 pairs the large 620 element, documented at 617.38 GPM per 100 RPM, with the K drive end rated to 54.0 HP per 100 RPM. In the single-stage 87 psi class, this model is oriented toward very high displacement and requires careful suction and power review.
Technical Resources
2000 Series Pumps · Cross Reference · Nameplate Guide · Applications & Industries
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.
