Gorman-Rupp Pumps  

Dry-run capability is designed into Gorman-Rupp’s unique priming-assisted system. An oversized,
oil-lubricated seal allows the pump to run dry continuously without causing any damage.

Dry Priming
The Prime Aire pump system uses a venturi compressor priming chamber and priming valve which eliminates the leaks associated with traditional priming-assisted pumps. Compressed air is forced through the venturi by the air compressor to create a vacuum. The air in the pump casing and suction line are then evacuated with the compressed air to the atmosphere. The pump begins to prime as atmospheric pressure causes water to replace the evacuated air.

This unique system reduces environmental concerns on sewage bypass operations and also enables the pump to operate under flooded suction conditions without leaking. The positive priming capabilities of the PA Series make it the perfect choice for applications where large volumes of air is in the liquid being pumped, there are intermittent flows or there are long or oversized suction lines.

Features

• Dry-run capability
• Oversized, abrasive-handling mechanical seal
• Standard auto-start control
• A variety of impeller options
• Sound-attenuated and electric-driven configurations available on some models
• Dual-suction side capability (PA6C60 model only)
• Fuel level monitoring system (on Tier IV engine-driven models)

Gorman-Rupp’s 6400 Series^™ end suction centrifugal pumps are engineered with the same proven reliability and durability found in our Super T Series^® pumps, making them a cost-effective solution for flooded suction applications. These pumps are designed to handle various industrial, agricultural, and construction applications, offering versatility and efficiency.

The 6400 Series pumps come with multiple impeller options, including solids-handling and high-efficiency configurations, making them suitable for both clean liquids and those containing large solids. Our Eradicator^® and Eradicator Plus^™ solids management technologies ensure effective handling of tough, stringy materials, minimizing downtime and maintenance.

These pumps feature a double-floating, self-aligning oil-lubricated mechanical cartridge seal, ensuring a longer operational life and ease of maintenance. Additionally, the rotating assembly is interchangeable with most Super T Series models, allowing for quick and easy in-field conversions and part replacements.

Available in discharge sizes of two, three, four, six, eight, and ten inches, this line of self-priming pumps boasts capacities to 3,400 gallons per minute (214.5 liters per second) and heads to 148 feet (45 meters). Pumps four inches and larger are engineered to allow up to three-inch diameter spherical solids to pass through any critical area, including the recirculation port.

Super T Series pumps are available in several configurations, including a B version for higher head applications and close-coupled or engine-driven models. In addition, all Gorman-Rupp Super T Series pumps are backed by a five-year manufacturer's warranty, and Eradicator Plus models come standard with a one-year manufacturer's warranty.

Eradicator Solids Management System
The Eradicator system features an aggressive self-cleaning wearplate incorporating a number of notches and grooves and a patent-pending lacerating tooth that helps break up stringy materials and pass them through the pump without impacting performance or interrupting service. In addition, a special back cover includes a patented lightweight inspection cover that can easily be removed if it is necessary to inspect the impeller. The innovative design dramatically reduces troublesome clogging and expensive downtime. 

Eradicator Plus Solid Reduction Technology
The Eradicator Plus was designed for the most extreme-duty applications such as; liquids containing trash bags, wipes, mop heads, hair, industrial by-products, and agricultural wastes. In addition, the Eradicator Plus is ideal when cutting and tearing organic solids entering the pump is required. Featuring an easily removable lightweight inspection cover, extra-thick G-R Hard Iron wearplate, upgraded stainless steel, and load-bearing shaft, the Eradicator Plus models are the most aggressive in the Super T Series product lineup. 

Available in medium duty, heavy duty and extreme duty models - in cast iron, cast steel and stainless steel. This series of pumps is versatile enough to handle virtually any pump application and liquid type. Patented features enable our rotary gear pumps to perform better and last longer in countless applications, providing quality and reliability that makes them the premier gear pumps in the industry.

All G Series pumps are designed with features that are only available on Gorman-Rupp rotary gear pumps. The quality manufacturing and testing that go into each pump ensure reliable pumping long after installation. Additional features include:

Rigid Rotating Elements
Optimum bushing locations provide high pressure operation while reducing overhung loads. On both packed box and mechanical seal models, the bushings are located as close as possible to the applied loads, providing maximum shaft support. High strength gear material eliminates the need for special steel fitted pump components traditionally required for viscous applications.

Internal Seal Vent
Venting provides continuous flow of liquid through seal cavity, ensuring cooling. The seal cavity maintains low pressure, reducing seal face load and increasing seal life.

Flexible Sealing
Gorman-Rupp rotary gear pumps are engineered to allow installation of industry-standard cartridge, compression packing or standard component mechanical seals.

Back Pull-Out Design
The back pull-out design provides the ability to perform service and maintenance without disconnecting pump housing from piping.

Adjustable No-Leak Pressure Release Valve
Innovative o-ring design on the relief valve allows for adjustment during operation, without leakage.

Rigid Pump Support
Foot brackets are centrally located under pump ports to provide stability to the pump and piping. Pumps can be configured to fit any piping configuration making them extremely versatile.

Multiple Port Positioning And Configurations
Interchangeable 90° or 180° housings with multiple port sizes on most models. Suction and discharge ports are available in threaded or flanged configurations.
 

The Roto-Prime design incorporates a variable capacity vane pump which quickly and automatically evacuates air and vapor, making the pump ideal for loading and off-loading transports. The design effectively strips product from the suction line, eliminating spillage of potentially volatile liquids. Roto-Prime pumps are available in two styles. The RS Series models are designed for standard-duty operation. RD Series pumps are ideal for higher-head applications. All models are capable of priming without liquid in the pump casing.

Unique Priming Process
During the priming process, a vacuum is created while the variable displacement sliding vane pump is in pumping mode. Vapor flow is directed from the suction to the priming pump through balance holes in the impeller and a kidney shaped hole in the body cover. The priming pump then discharges the vapor out tubing from the bearing housing to the volute discharge flange, located downstream of the integral priming valve. This prevents vapor from returning to the pump suction.

Roto-Prime Provides Automatic, Positive Pumping
Whenever air or vapor is present at the start of the pumping operation – or when there is a loss of suction because of air or vapor during pumping – the priming pump automatically moves air and vapor from the suction line to discharge line. Once the flowing liquid from the centrifugal portion of the pump builds up sufficient pressure in the discharge system, the pressure backs up through a tube to act on the bottom of the priming pump’s movable slide block, placing it in a neutral position during normal operation.