Other maintenance and cost-saving features include service reminders, event history, real-time response to changing pressure transducer signals and a safety shutdown system.
Gorman-Rupp: We have incorporated austempered ductile iron materials with a Brinnell hardness of 400 for wear parts such as the impeller, wear plates and seal plates. This material is designed to be used with abrasives such as sand and grit that is often common in construction applications.
In addition, a vortex version of our 3-in. priming-assisted centrifugal pump features a "staggerwing" impeller design to improve efficiency and allow the pump to handle solids and operate at lower flows.
We have also transitioned the design of all engine-driven pump units to incorporate Tier III engines to meet EPA regulations on engine emissions and fuel consumption.
Griffin Pump & Equipment: Our non-clog pumps feature a non-clog impeller and a large clean-out port for hassle-free removal of debris over 4.5 in. This allows for single-person operation, easy inspection/cleaning and simple removal without separating the pump from the suction pipe. The operation can be performed in less than five minutes by one operator.
Our wickpoint system is a "greener" 21st century version of the classic 75-year-old dewatering method known as the wellpoint system. New wickpoints with geo-textile filter screening can produce a more efficient and economical dewatering system that produces cleaner discharge water and reduces or eliminates subsidence and settlement problems.
Excavations with perimeters of up to 1,400 ft. using properly sized wickpoint systems can be handled with less than 10-hp single-phase electric pumping systems to reduce dewatering costs. Using inert materials can offer the option of converting temporary dewatering into a permanent system.
New "green" pumping systems are also in development, including dewatering systems powered by solar panels and other alternative energy sources. Currently, we offer electric-powered pumps and pumps with Tier III engines.
Our Spin-Out design protects the outer seal and extends service life by expelling abrasive particles from the seal, while an optional clog-resistant, high-chrome impeller minimizes clogging when pumping abrasive water containing large, soft particles.
A single-adjustment screw enables fast, easy impeller adjustment for optimal performance over a sustained period of time. The Dura-Spin hydraulic system offers spiral grooves on the suction cover. In combination with back vanes on the impeller, it provides greatly increased durability by preventing abrasive particles from reaching the impeller neck.
Thompson Pump: In the past year, we have made developments and improvements in many areas including quicker start-up priming, larger solids-handling capabilities, higher flow and head capabilities and improved abrasion resistance. We have enhanced the ability to operate in "snore" conditions where pumping rate fluctuates, as well as the ability to run dry indefinitely.
We now offer natural gas-powered pumps, and have improved pump enclosures and accessibility for maintenance, while reducing noise and improving pump efficiency and fuel savings. An easy-to-assemble drop-over canopy can now be added to pump units in the field.
Our pumps are easier to use with improved control panels and enhanced telemetry (SCADA). Long-running fuel tanks require less attention. Our compact pump unit offers increased performance and durability with extremely robust reliability to handle the same flows as comparable pumps but in a smaller size.
Improved application versatility gives contractors the ability to handle various liquids. An eco-friendly, oil-less vacuum pump provides 100% oil-free suction and discharge, and our hydraulic pump features biodegradable hydraulic fluid made of nontoxic vegetable-based fluid.