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Sealless pumps outlast piston pumps
applications general applications
Sealless pumps outlast piston pumps Atchison Topeka, a food transport and storage practitioner, based in Worcester, UK, installed three sealless pumps on a food tanker cleaning duty six years ago this summer and is still enjoying continued uninterrupted use to this day. The pumps replaced a number of piston units that had originally been installed with a new computer-controlled automatic cleaning facility designed for use with the company’s fleet of 40 dedicated food-product road tankers. Unfortunately, the piston pumps kept breaking down necessitating the costly replacement of pumps, seals and other valuable components. That is until the alternative sealless pump solution was installed.
Working in conjunction with Hydra-Cell’s UK representative and distributor, CT Technical Products, now part of Roxspur Measurement & Control, Atchison Topeka chose the Hydra-Cell G35 sealless pump for the food tanker cleaning duty. The pump has a maximum flow rate of 128 l/min and is rated for continuous operation at 83 bar of pressure. Construction materials include high-temperature Buna diaphragms and hardened stainless steel pump heads, valves and seats to cope with the arduous internal tank cleaning duty. The sealless design has an energy efficiency rating in excess of 80% claim the manufacturers and the flow is proportional to the pump speed. This means it is unaffected by changes in pressure or other environmental factors providing consistent performance. Two Hydra-Cell G35 units were installed on the computer-controlled automatic cleaning system at Atchison Topeka’s Worcester facility. The pumps deliver high temperature water at 70 bar of pressure to three spray system automatic wash units. The tankwash units clean inside the food tankers that stream out of the Worcester depot on a daily basis. The outside of Atchison Topeka’s trucks and lorries are washed by a high-pressure spray gun, which utilises a third Hydra-Cell G35 pump to deliver detergent solution to the spray head. This external cleaning system also operates at 70 bar of pressure and comes with a pipe cleaning attachment to enhance its flexibility. Atchison Topeka chose the Hydra-Cell pumps following a trip to France. Whilst there, John Chandler, the company’s managing director, stumbled upon a busy tanker servicing depot near Rouen, where he noticed a battery of highpressure pumps serving a multi-bay tank cleaning installation. The unfamiliar types of pump were, of course, Hydra-Cell’s sealless G35
WORLD PUMPS July 2004
units in which the pumping action is provided by pressure-balanced hydraulically activated diaphragms. Impressed with their quiet performance and armed with a good report on the pumps performance from the management team at the French depot, John Chandler returned to England and contacted Hydra-Cell’s UK representatives, CT Technical Products, upon his arrival back in the country. The food delivery specialists had already tried to replace the original malfunctioning piston pumps once with a similar piston solution from a rival manufacturer but once again there were problems and the need to find a permanent solution was growing. “The first replacement pumps that we tried cavitated so much that the vibration nearly shook the building down,” recalls Andy Hartwell, operations director at the Worcester facility. Finding a ready-made solution in France was a stroke of good luck and helped to speed up Atchison’s search for a permanent solution. After 6 years the original Hydra-Cell pumps are still in daily use. Maintenance requirements have been relatively modest according to Atchison Topeka and the pumps have performed equally well with either hot detergent solutions or just with very hot water. The Worcester facility not only cleans the Atchison Topeka fleet of 40 trucks, it also cleans tankers for outside clients, although the vehicles are always from within the
Hydra-Cell’s G35 sealless pump has been the backbone for the continued successful operation of Atchison Topeka’s tanker cleaning system at its Worcester depot in western England.
www.worldpumps.com 17
applications general applications food industry. The company's own vehicles, and those of their outside clients, carry a wide variety of food products including chocolate, jam, sugars, milk and glucose, and some of the tankers are also designed to carry solid product such as milk powder and flour. Part of the fleet is dedicated to single-product work, but most tankers are multi-functional within the food sector so the need for thorough cleaning between jobs is absolutely essential.
One of the three automatic tankwash units at Atchison Topeka’s Worcester facility is lowered into working position. The Hydra-Cell G35 sealless pumps feed these cleaning systems with hot liquid at 70 bar of pressure are still in daily use after 6 years of service.
The tank washing routine at the Worcester facility is fully programmable. Different food products may need longer or shorter cleaning times. The average daily throughput at the facility is usually 10 vehicles per day, which can rise or fall slightly depending on that day’s deliveries. The pumps will be in more or less constant use on a normal day so the continued reliability of the G35 units has been a great benefit to Atchison Topeka, especially in comparison to its previous solution.
Tube pump oxygenates blood for heart patients The new TherOx® AO system is being used to treat heart attack patients around the world. Developed by TherOx Inc, a medical device manufacturer based in California, USA, who specialise in OEM solutions for the biotech sector, the AO system utilises a peristaltic tubing pump to draw blood from a patient's femoral artery, pump it into a chamber for mixing with aqueous oxygen (AO), and then delivers the AO-treated blood back to the patient.
Referred to as AO therapy, this novel treatment is intended to salvage heart tissue damaged by a heart attack. The hyperoxygenated blood is put back into the patient via an infusion catheter over a period of 90 minutes and gives the patient renewed strength. As can be imagined, the technology requires a fluid pump that has excellent control over flow rates, pressures, and other performance parameters. Barnant Company responded to the challenge by designing a specially modified version of its patented Masterflex peristaltic tubing pump. The tubing pump system created by Barnant's medical OEM design team needed to interface
18
www.worldpumps.com
with the PC that controls all the functions on the TherOx AO system. The pump required a digital display to indicate flow rate and it also needed to communicate with flow meters and critical bubble detectors. TherOx Inc also stipulated a variable speed drive for the pump motor during the product development phase, as well as a safety interlock on the Easy-Load pump head. Easy-Load is a Barnant designed system whereby the pump tubing is released and reset by a simple overthrow lever mechanism, thus eliminating the need to disassemble the peristaltic pump head to change tubes. All the components in Barnant's proprietary
WORLD PUMPS July 2004
Sealless pumps outlast piston pumps Atchison Topeka, a food transport and storage practitioner, based in Worcester, UK, installed three sealless pumps on a food tanker cleaning duty six years ago this summer and is still enjoying continued uninterrupted use to this day. The pumps replaced a number of piston units that had originally been installed with a new computer-controlled automatic cleaning facility designed for use with the company’s fleet of 40 dedicated food-product road tankers. Unfortunately, the piston pumps kept breaking down necessitating the costly replacement of pumps, seals and other valuable components. That is until the alternative sealless pump solution was installed.
Working in conjunction with Hydra-Cell’s UK representative and distributor, CT Technical Products, now part of Roxspur Measurement & Control, Atchison Topeka chose the Hydra-Cell G35 sealless pump for the food tanker cleaning duty. The pump has a maximum flow rate of 128 l/min and is rated for continuous operation at 83 bar of pressure. Construction materials include high-temperature Buna diaphragms and hardened stainless steel pump heads, valves and seats to cope with the arduous internal tank cleaning duty. The sealless design has an energy efficiency rating in excess of 80% claim the manufacturers and the flow is proportional to the pump speed. This means it is unaffected by changes in pressure or other environmental factors providing consistent performance. Two Hydra-Cell G35 units were installed on the computer-controlled automatic cleaning system at Atchison Topeka’s Worcester facility. The pumps deliver high temperature water at 70 bar of pressure to three spray system automatic wash units. The tankwash units clean inside the food tankers that stream out of the Worcester depot on a daily basis. The outside of Atchison Topeka’s trucks and lorries are washed by a high-pressure spray gun, which utilises a third Hydra-Cell G35 pump to deliver detergent solution to the spray head. This external cleaning system also operates at 70 bar of pressure and comes with a pipe cleaning attachment to enhance its flexibility. Atchison Topeka chose the Hydra-Cell pumps following a trip to France. Whilst there, John Chandler, the company’s managing director, stumbled upon a busy tanker servicing depot near Rouen, where he noticed a battery of highpressure pumps serving a multi-bay tank cleaning installation. The unfamiliar types of pump were, of course, Hydra-Cell’s sealless G35
WORLD PUMPS July 2004
units in which the pumping action is provided by pressure-balanced hydraulically activated diaphragms. Impressed with their quiet performance and armed with a good report on the pumps performance from the management team at the French depot, John Chandler returned to England and contacted Hydra-Cell’s UK representatives, CT Technical Products, upon his arrival back in the country. The food delivery specialists had already tried to replace the original malfunctioning piston pumps once with a similar piston solution from a rival manufacturer but once again there were problems and the need to find a permanent solution was growing. “The first replacement pumps that we tried cavitated so much that the vibration nearly shook the building down,” recalls Andy Hartwell, operations director at the Worcester facility. Finding a ready-made solution in France was a stroke of good luck and helped to speed up Atchison’s search for a permanent solution. After 6 years the original Hydra-Cell pumps are still in daily use. Maintenance requirements have been relatively modest according to Atchison Topeka and the pumps have performed equally well with either hot detergent solutions or just with very hot water. The Worcester facility not only cleans the Atchison Topeka fleet of 40 trucks, it also cleans tankers for outside clients, although the vehicles are always from within the
Hydra-Cell’s G35 sealless pump has been the backbone for the continued successful operation of Atchison Topeka’s tanker cleaning system at its Worcester depot in western England.
www.worldpumps.com 17
applications general applications food industry. The company's own vehicles, and those of their outside clients, carry a wide variety of food products including chocolate, jam, sugars, milk and glucose, and some of the tankers are also designed to carry solid product such as milk powder and flour. Part of the fleet is dedicated to single-product work, but most tankers are multi-functional within the food sector so the need for thorough cleaning between jobs is absolutely essential.
One of the three automatic tankwash units at Atchison Topeka’s Worcester facility is lowered into working position. The Hydra-Cell G35 sealless pumps feed these cleaning systems with hot liquid at 70 bar of pressure are still in daily use after 6 years of service.
The tank washing routine at the Worcester facility is fully programmable. Different food products may need longer or shorter cleaning times. The average daily throughput at the facility is usually 10 vehicles per day, which can rise or fall slightly depending on that day’s deliveries. The pumps will be in more or less constant use on a normal day so the continued reliability of the G35 units has been a great benefit to Atchison Topeka, especially in comparison to its previous solution.
Tube pump oxygenates blood for heart patients The new TherOx® AO system is being used to treat heart attack patients around the world. Developed by TherOx Inc, a medical device manufacturer based in California, USA, who specialise in OEM solutions for the biotech sector, the AO system utilises a peristaltic tubing pump to draw blood from a patient's femoral artery, pump it into a chamber for mixing with aqueous oxygen (AO), and then delivers the AO-treated blood back to the patient.
Referred to as AO therapy, this novel treatment is intended to salvage heart tissue damaged by a heart attack. The hyperoxygenated blood is put back into the patient via an infusion catheter over a period of 90 minutes and gives the patient renewed strength. As can be imagined, the technology requires a fluid pump that has excellent control over flow rates, pressures, and other performance parameters. Barnant Company responded to the challenge by designing a specially modified version of its patented Masterflex peristaltic tubing pump. The tubing pump system created by Barnant's medical OEM design team needed to interface
18
www.worldpumps.com
with the PC that controls all the functions on the TherOx AO system. The pump required a digital display to indicate flow rate and it also needed to communicate with flow meters and critical bubble detectors. TherOx Inc also stipulated a variable speed drive for the pump motor during the product development phase, as well as a safety interlock on the Easy-Load pump head. Easy-Load is a Barnant designed system whereby the pump tubing is released and reset by a simple overthrow lever mechanism, thus eliminating the need to disassemble the peristaltic pump head to change tubes. All the components in Barnant's proprietary
WORLD PUMPS July 2004