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3L4 Moyno Pump

The L4 Progressive Cavity Moyno Pump is ideal for grouting applications with neat cement and one step grouts such as Bariod Quick Grout. Two step grouts, like eight mesh Benseal, is not recommended as progressive cavity pumps over-shear the grout material and tremie lines easily plug! The L4 can achieve flow rates from 2-24 GPM (2.02 Gallons per 100 revolutions) up to a top pressure of 225 psi.

The L4 is a standard flanged progressive cavity design manufactured in cast iron or 316 stainless steel casings and designed in 1, 2, and 3 stages for 75, 150, and 225 psi discharge pressures. Higher discharge pressures are available. For more information about the L4 Series, please Contact NDS Drilling Supply, Inc. at

The L4’s modularity with simple hardened pinned joint drive assembly is a proven design that can handle the most difficult fluid pumping applications. The L4 PC Rotors are typically tool steel or 316 stainless steel with a hard chrome plating for added durability and resistance to neat cement grout. All other wetted parts are either carbon steel or 316 stainless steel.

The L4 Stators are available in many popular elastomer materials such as buna, natural rubber, epdm and viton. The standard seal design is a set of gland packing with Lantern Ring and flush connections. Mechanical seal options are readily available.

The L4 is one of the most popular sizes for the L-Frame PC Pump by all pump manufacturers. It has a proven track record of excellence in pumping fluids and as a mud pump for platform installations.


L4 – Technical Data

• FLOW RATE 2 – 24 GPM
• PRESSURE 0 – 225 PSI
• SEAL OPTIONS Packing & Mech. Seal
• BASE OPTIONS Carbon and Stainless Steel
• INLET/OUTLET 2-1/2″ / 2″
• ROTORS Chrome Plated Tool Steel or Stainless Steel
• STATORS Buna/Viton®/EPDM/Rubber