No dynamic seals

Featured Product from GRI Pumps (A Gorman-Rupp Company)

Oscillating Pumps
Oscillating pumps are self-priming, corrosion resistant, have no dynamic seals and are constructed from FDA accepted materials.
These pumps are intended for replenishing, transfer and circulating installations.


Flow Rates: Generally range from 0.2 to 0.8 gpm – refer to performance curve. Actual flow may be higher and may vary from pump to pump. Due to this inherent characteristic, these pumps are not normally intended for metering.

Discharge Head: To 8.3 feet (on standard models).

Self-Priming: To 48 inches (on standard models).

Fluid Temperature: To 104°F (40°C).

Weight: Approximately 1 pound.

Motors: 115V, 230V 50/60 Hz – requires a diode (included with listed models).

Agency Approvals: Most models listed in charts provided herein bear the UL Recognized Component Mark for the United States and Canada (except 14925 Series “Lab” models).

Most models also have FDA listed wetted materials of construction for use in food consumable applications. NSF materials are also available. Please consult factory for details on specific models.


  • Self-priming
  • Compact
  • Economical
  • Spring styles: Leaf Spring – extremely quiet
  • Spring styles: Coil Spring – higher flow & efficiency, greater priming ability
  • Outlet valve styles: 2-Piece allows higher flow; no backflow prevention
  • No dynamic seals
  • Lightweight
  • Can operate continuously
  • Moisture & corrosion resistant coil
  • Outlet valve styles: Poppet – prevents backflow thru pump



  • Film and microfilm processors
  • Litho and graphic arts plate processors
  • Detergent dispensing
  • Chemical mixing
  • Medical, scientific and laboratory equipment


Chemical Resistant Charts

GRI Certified to ISO 14001:2015 Environmental Standard

Frequently Asked Questions



Watch>>>About GRI Pumps (A Gorman-Rupp Company)

Since 1953: Not Just Pumps, Pumping Solutions
There are many variables that must be considered when specifying a magnetic drive pump for an OEM application. At first glance you may not find a pump that meets your exact requirements. GRI recommends that you contact our Technical Sales Staff to discuss your project so that the right pump can be specified. Many times we will customize an existing pump to meet your needs or design a new pump according to your system’s exact specifications.

The Importance of Specifying a Pump Early in the OEM Design Process
Check out GRI’s “Emphasis On Pumps” article in the October 2013 issue of MDT magazine.  Knowing the specific fluid pumping requirements of an application upfront in the development process is important. Unfortunately many device and system designers neglect to consider the fluid pumping requirements until late in the design process.

Many times a designer will have to perform costly alterations to systems or devices to make their design compatible with a pump chosen late in the design process. Being that many times a pump is the “heart” of a system, it makes sense to begin the specification process early rather than later. Careful planning saves not only time and money, but also headaches. 

Fluid pumps for the Original Equipment Market
Serving the Original Equipment Manufacturer since 1953, Gorman-Rupp Industries’ reputation and success have been built on innovative fluid pump designs, customer service, and providing products to meet the exact specifications of our customers.

GRI’s fluid pumping knowledge and expertise comes from working with domestic and international partners in a variety of markets and OEM applications for over 60 years. Whether it is replacing an existing pump or working with you on a new OEM fluid pumping application, GRI’s proven concepts and engineered designs will provide a unique solution to your fluid pumping dilemma.

Custom Design and Manufacturing of fluid pumps for the OEM market, Bellows Metering Pumps, Magnetic Drive Pumps, Centrifugal Pumps, Oscillating Pumps, Gear Pumps, OEM Pumps