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Product news
WORLD PUMPS
March 2009
Abrasion-resistant pump bushing material Graphite Metallizing has developed Graphlon GM 860, an abrasion-resistant bushing material that protects pumps and helps prolong pump life. Graphlon GM 860 is a polymer and graphite-based which has been developed specifically for sump pumps and river water service pumps where abrasives are always an issue. The material also handles the limited run dry requirement of these applications. The company says that the material was developed to replace traditional pump
materials which are prone to damage from highly-abrasive suspensions. Traditional pump bushings (such as bronzes and other plastics) do not handle run dry situations well. This new material extends the range of the company’s Graphalloy run dry capable materials, enabling users to increase mean time between failure with many pumps troubled by abrasives. The bearings are supplied machined and ready to install. www.graphalloy.com
Valve actuator for harsh environments Flowserve has developed a valve actuator which can thrive in the most extreme and harsh environments. The actuator is double-sealed and powdercoated in a polyester resin. The Limitorque QX is a quarterturn, electronic valve actuator designed with improved diagnostics, built-in self-test (BIST) features, and LimiGard fault protection capabilities. It incorporates a patent-pending absolute encoder, which tracks position without the use of batteries.
The Limitorque QX has brushless DC motors, which eliminate sparks, reduces mechanical and electrical noise, and dissipates heat better than DC motors with brushes. Flowserve says that a brushlessactuator design lasts longer than conventional motors and allows for more accurate positioning. The actuator has optional digital components and can operate on a number of networks with different protocols including Foundation Fieldbus, Profibus, DP and Profibus PA, Modbus and Devicenet. www.flowserve.com
Graphlon abrasion-resistant bushing material for sump pumps.
High-pressure pump with ‘nested’ seals US cleaning equipment manufacturer Hotsy has developed new seal technology for its range of high pressure water jet pumps. NESTechnology stands for Nested Seal Technology, where the pump ‘nests’ the seals of the pump’s high-pressure packing assembly in place, supporting the side walls, resulting in greatly increased seal life, the company says. This also makes the assembly stronger and holds up better to spikes in water pressure, which occur every time
the pressure washer’s gun is triggered. The nesting assembly includes high and low-pressure U-shaped seals surrounded by thicker brass pressure rings. The low-pressure U-Seal has a double lip to provide for greater suction and less chance of water leakage. Hotsy pumps can therefore have three times the seal life over similar pumps in the industry, the company claims. www.hotsy.com
Diaphragm pumps with single/dual head Clark Solutions has developed a range of DC motor driven diaphragm pumps with single or dual pump head designs.
Flowserve’s Limitorque QX can thrive in harsh environments. www.worldpumps.com
The Boxer 5100 and 5200 diaphragm pumps are designed for use with compatible liquids and gases, chemical dosing, sampling gases or liquids, or other applications in environmental, medical or chemical processing. They are suitable for pressure or vacuum applications
where low current and reliability are the prime requirements. The diaphragm pumps are available with a choice of DC motors, are self-priming, and provide maintenance-free operation. The dual head designs can be configured for serial or parallel operation with combined flow to 10 l/min (gas) or to 900 ml/min with liquids. www.clarksol.com
Product news
WORLD PUMPS
March 2009
Abrasion-resistant pump bushing material Graphite Metallizing has developed Graphlon GM 860, an abrasion-resistant bushing material that protects pumps and helps prolong pump life. Graphlon GM 860 is a polymer and graphite-based which has been developed specifically for sump pumps and river water service pumps where abrasives are always an issue. The material also handles the limited run dry requirement of these applications. The company says that the material was developed to replace traditional pump
materials which are prone to damage from highly-abrasive suspensions. Traditional pump bushings (such as bronzes and other plastics) do not handle run dry situations well. This new material extends the range of the company’s Graphalloy run dry capable materials, enabling users to increase mean time between failure with many pumps troubled by abrasives. The bearings are supplied machined and ready to install. www.graphalloy.com
Valve actuator for harsh environments Flowserve has developed a valve actuator which can thrive in the most extreme and harsh environments. The actuator is double-sealed and powdercoated in a polyester resin. The Limitorque QX is a quarterturn, electronic valve actuator designed with improved diagnostics, built-in self-test (BIST) features, and LimiGard fault protection capabilities. It incorporates a patent-pending absolute encoder, which tracks position without the use of batteries.
The Limitorque QX has brushless DC motors, which eliminate sparks, reduces mechanical and electrical noise, and dissipates heat better than DC motors with brushes. Flowserve says that a brushlessactuator design lasts longer than conventional motors and allows for more accurate positioning. The actuator has optional digital components and can operate on a number of networks with different protocols including Foundation Fieldbus, Profibus, DP and Profibus PA, Modbus and Devicenet. www.flowserve.com
Graphlon abrasion-resistant bushing material for sump pumps.
High-pressure pump with ‘nested’ seals US cleaning equipment manufacturer Hotsy has developed new seal technology for its range of high pressure water jet pumps. NESTechnology stands for Nested Seal Technology, where the pump ‘nests’ the seals of the pump’s high-pressure packing assembly in place, supporting the side walls, resulting in greatly increased seal life, the company says. This also makes the assembly stronger and holds up better to spikes in water pressure, which occur every time
the pressure washer’s gun is triggered. The nesting assembly includes high and low-pressure U-shaped seals surrounded by thicker brass pressure rings. The low-pressure U-Seal has a double lip to provide for greater suction and less chance of water leakage. Hotsy pumps can therefore have three times the seal life over similar pumps in the industry, the company claims. www.hotsy.com
Diaphragm pumps with single/dual head Clark Solutions has developed a range of DC motor driven diaphragm pumps with single or dual pump head designs.
Flowserve’s Limitorque QX can thrive in harsh environments. www.worldpumps.com
The Boxer 5100 and 5200 diaphragm pumps are designed for use with compatible liquids and gases, chemical dosing, sampling gases or liquids, or other applications in environmental, medical or chemical processing. They are suitable for pressure or vacuum applications
where low current and reliability are the prime requirements. The diaphragm pumps are available with a choice of DC motors, are self-priming, and provide maintenance-free operation. The dual head designs can be configured for serial or parallel operation with combined flow to 10 l/min (gas) or to 900 ml/min with liquids. www.clarksol.com