- Email: [email protected]
Handheld device detects motor rotation
Materials information
~he third w a j
Metering pump range upgraded ProMinent Fluid Controls' well established Sigma range of motor driven metering pumps has been upgraded with the introduction of the Sigma/3. The Sigma/3 not only extends the metering capacity to a maximum of 1000 1/hr but also features significantly improved microprocessor control and display functions. A new method of metering control used in the Sigma/3 features a combination of frequency and on/off control. At higher flow rates, metering is controlled by closed loop speed control, while at lower dosing rates, a simple on/off system is used. Switching between the two systems occurs completely automatically.
0.5% steps. Metering reproducibility of 2% can be achieved over stroke lengths of 30 - 100%. The Sigma/3 also features a liquid crystal display with large format characters and self-regulating illumination which allows easy reading of display values even under the most unfavourable lighting conditions. There is also a direct readout of delivery volume, which is displayed in 1/hr or US gal/hr.
The pump has a capacity range of 145 to 1030 1/hr at a back pressure of 12 to 4 bar. Delivery capacity can be varied by adjusting the stroke length in
CONTACT ProMinent Fluid Controls (UK) Ltd, Resolution Road, Ashby de la Zouch, Leicestershire LE65 MW, UK. Tel: +44 1530 560555; Fax: +44 1530 560777
".ompact dewateren
Wellpointing with minimum moving parts Godwin Pumps' Dri-Prime® pump for wellpointing applications is designed for high volume dewatering systems and yet remains fully suitable for sewer bypass and general dewatering applications. The units have maximum flow rates to 1800 gpm and discharge heads to 130 ft. According to Godwin Pumps, the primary feature of this model is its single action, wellpoint air separation tank and valve. The assembly is compact, operates with a minimum of moving parts and protects the vacuum system in high water level conditions. The device has been granted a patent pending for its innovative design. The Godwin Dri-Prime CD150MV is also manufactured
121 W O R L D P U M P S
with Viton T M elastomer and seals that are hydrocarbon resistant. This feature makes the pump ideal for contaminated ground water applications where hydrocarbons must be stripped from ground water in site remediation. The pump is available on a skid base or high-
August 2000
way trailer mount and with a variety of diesel engines. CONTACT Godwin Pumps of America Inc, One Floodgate Road, Bridgeport, NJ 08014, USA. Tel: +1 856 467 3636; Fax: +1 856 467 4428; E-mail: [email protected]
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, ,
Corrosion guidelines get a makeover The UK National Physical Laboratory has updated five of its corrosion guides. The guides advise engineers and noncorrosion experts on specific corrosion issues. The following titles are now available. • Stress Corrosion Cracking • Corrosion in Pumps and Valves • Surface Preparation for Coatings • Guidelines for the Protection of Structural Steelwork * Bimetallic Corrosion The National Physical Laboratory carries out research, primarily on behalf of government, aimed at maintaining measurement standards for the most important physical quantities (mass, length, time, temperature, etc.) and also related work in engineering materials and information technology. CONTACT National Physical Laboratory, Teddington, Middlesex TWl 10LW, UK. Tel: +44 20 8977 3222; Fax: +44 20 8943 6458 Every w h i c h w a y
Handhold device detects motor rotation Bell & Gossett has produced an easy-to-use gadget that determines the direction of rotation of any electric motor in seconds. The compact, hand-held device features a microprocessor able to sense the magnetic field of an energized motor and identify its rotational direction at the touch of a button. The Motor Rotation Detector works on all 60-cycle, alternating current motors and can fit easily in a toolbox. A convenient LED display makes the sturdy and reliable detector's read-out easy to see, even in the dimmest light. The Motor Rotation Detector is powered by a standard 9V battery. CONTACT I'IT Fluid Technology, 8200 N Austin Avenue, Morton Grove, IL 60053, USA. Tel: +1 847 966 3700; Fax: +1 847 966 9052; http://fhs.ittind.com
www.worldpumps.com
~he third w a j
Metering pump range upgraded ProMinent Fluid Controls' well established Sigma range of motor driven metering pumps has been upgraded with the introduction of the Sigma/3. The Sigma/3 not only extends the metering capacity to a maximum of 1000 1/hr but also features significantly improved microprocessor control and display functions. A new method of metering control used in the Sigma/3 features a combination of frequency and on/off control. At higher flow rates, metering is controlled by closed loop speed control, while at lower dosing rates, a simple on/off system is used. Switching between the two systems occurs completely automatically.
0.5% steps. Metering reproducibility of 2% can be achieved over stroke lengths of 30 - 100%. The Sigma/3 also features a liquid crystal display with large format characters and self-regulating illumination which allows easy reading of display values even under the most unfavourable lighting conditions. There is also a direct readout of delivery volume, which is displayed in 1/hr or US gal/hr.
The pump has a capacity range of 145 to 1030 1/hr at a back pressure of 12 to 4 bar. Delivery capacity can be varied by adjusting the stroke length in
CONTACT ProMinent Fluid Controls (UK) Ltd, Resolution Road, Ashby de la Zouch, Leicestershire LE65 MW, UK. Tel: +44 1530 560555; Fax: +44 1530 560777
".ompact dewateren
Wellpointing with minimum moving parts Godwin Pumps' Dri-Prime® pump for wellpointing applications is designed for high volume dewatering systems and yet remains fully suitable for sewer bypass and general dewatering applications. The units have maximum flow rates to 1800 gpm and discharge heads to 130 ft. According to Godwin Pumps, the primary feature of this model is its single action, wellpoint air separation tank and valve. The assembly is compact, operates with a minimum of moving parts and protects the vacuum system in high water level conditions. The device has been granted a patent pending for its innovative design. The Godwin Dri-Prime CD150MV is also manufactured
121 W O R L D P U M P S
with Viton T M elastomer and seals that are hydrocarbon resistant. This feature makes the pump ideal for contaminated ground water applications where hydrocarbons must be stripped from ground water in site remediation. The pump is available on a skid base or high-
August 2000
way trailer mount and with a variety of diesel engines. CONTACT Godwin Pumps of America Inc, One Floodgate Road, Bridgeport, NJ 08014, USA. Tel: +1 856 467 3636; Fax: +1 856 467 4428; E-mail: [email protected]
,
, ,
Corrosion guidelines get a makeover The UK National Physical Laboratory has updated five of its corrosion guides. The guides advise engineers and noncorrosion experts on specific corrosion issues. The following titles are now available. • Stress Corrosion Cracking • Corrosion in Pumps and Valves • Surface Preparation for Coatings • Guidelines for the Protection of Structural Steelwork * Bimetallic Corrosion The National Physical Laboratory carries out research, primarily on behalf of government, aimed at maintaining measurement standards for the most important physical quantities (mass, length, time, temperature, etc.) and also related work in engineering materials and information technology. CONTACT National Physical Laboratory, Teddington, Middlesex TWl 10LW, UK. Tel: +44 20 8977 3222; Fax: +44 20 8943 6458 Every w h i c h w a y
Handhold device detects motor rotation Bell & Gossett has produced an easy-to-use gadget that determines the direction of rotation of any electric motor in seconds. The compact, hand-held device features a microprocessor able to sense the magnetic field of an energized motor and identify its rotational direction at the touch of a button. The Motor Rotation Detector works on all 60-cycle, alternating current motors and can fit easily in a toolbox. A convenient LED display makes the sturdy and reliable detector's read-out easy to see, even in the dimmest light. The Motor Rotation Detector is powered by a standard 9V battery. CONTACT I'IT Fluid Technology, 8200 N Austin Avenue, Morton Grove, IL 60053, USA. Tel: +1 847 966 3700; Fax: +1 847 966 9052; http://fhs.ittind.com
www.worldpumps.com