GRI’s Bellows Metering Pumps
Featured Product from GRI Pumps (A Gorman-Rupp Company)
Bellows Metering Pumps
GRI’s Bellows Metering Pumps utilize GRI’s proven bellows and valving technology to provide an accurate and economical metering pump with long life. The proprietary blended polypropylene materials of construction and a wide selection of valve and O-ring elastomers produce chemical resistant pumps capable of handling a wide range of fluids.
Bellows Metering Pumps were specifically designed for metering applications requiring low discharge pressures. Bellows pumps have been successfully applied in photo, X-ray and dental film processors, silver recovery systems, scientific and analytical instruments, wafer and silicon chip washers and processors, detergent dispensers, blood analyzing equipment, industrial floor scrubbers, thermal therapy equipment, waste removal systems, and wastewater and water treatment systems.
Flow Rates: Range from 3.9 ml/min to 3000 ml/min, depending on pump configuration, gearmotor speed and stroke length.
Max. Discharge Pressures: Range from 5 to 50 psi depending on bellows size.
Max. Fluid Temperature: To 140°F (60°C). Reduce pressure rating by 50% for fluid temperatures over 120°F (49°C).
Viscosity/Slurries: Maximum fluid viscosity is 5,000 centistokes. Poppet valves can handle fine slurries. Duckbill valves are recommended for heavy slurries or fibrous materials.
- Repeatability from stroke-to-stroke to ± 0.5%
- Corrosion resistant
- Long life
- Bleach compatible option
- Dry run capability
- No dynamic seals
- Maintenance free operation
- Simple flow adjustment
- Multiple OEM options
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