Emerson Process Management has expanded its line of Fisher dirty service control-valve solutions to include the Notchflo DST valve and Fisher DST control valve trim.
The line-up offers cavitation control for applications known to contain entrained particulate that would damage standard trim components and can be used in the hydrocarbon, power, chemical, pulp and paper, and metals and mining industries.
The Fisher Notchflo DST valve is a multi-stage (three, four or six) anti-cavitation valve available in NPS 1 to 8, in Class 300-1500 globe and Class 600-2500 angle (DN 25 -200, PN50 to PN260 Globe and PN110 to PN420 angle) that can be used in severe service applications.
The Fisher DST control valve trim is a multi-stage (two, three, four, five or six) anti-cavitation trim available in NPS 1 to 16, in Class 300-2500 (DN 25 - 400, PN50 to PN420).
Both the Notchflo and DST are frequently used in high-pressure-drop applications up to 290 bar (4,200psi) in the chemical, refining, oil and gas production, and power industries.
In addition to the expanded lineup of Fisher dirty service-control valves, the Fisher Cavitrol III Trim with improved sealing technologies is available.
It is a multi-stage (two or three) trim available in NPS 1 to 8x6, in Class 900-2500 (DN 25 - 200x150, PN150 to PN420) that can be used in severe service applications where plug-tip erosion and seal wear are issues.
The Fisher Cavitrol III Trim is frequently used in pump recirculation and startup systems in power, process, oil-production and chemical-refining industries Diaphragm Valves Instrument Valve Metering Pump Miniature Valve Solenoid Valve.
Thursday, February 11, 2010
My own stimulus: Buying made-in-U.S. products
Our economy is in a shambles. We all know there's a lot of blame to go around, but the fact is that most of the products we buy are made offshore. It's going to take some time to see if the stimulus plan's billions of dollars are going to turn the economy around, but each of us can do our part by buying American right now.
Our troubled domestic auto industry is at least still building cars here, which is more than you can say about electronics, computer, video, and camera vendors. Even clothing and shoes are mostly made elsewhere. It's not just the loss of blue-collar manufacturing gigs; design and engineering jobs are increasingly outsourced.
When shopping, do you look at the label or box to see where the product you're about to buy is made? If you had a choice of an American-made product and an imported one, would the country of origin play a part in your buying decision? If the American product was 10 percent pricier, would you buy it, even if you judged quality of the two to be about the same?
I just bought a new couch (for a great price), and it was made in North Carolina. That's my personal stimulus plan.
Sure, quality matters, but if we go on exporting jobs, how will we maintain our standard of living? I could make the same case for buying online versus shopping in your city or town. Those local shops employ your family, friends, and neighbors; would you pay extra to keep the dollars in your community?
High-end audio products, like the three I mentioned in Thursday's post, the Benchmark DAC1 USB and Woo Audio WA3 headphone amplifiers, as well as the Grado GS-1000 headphones, are all made in New York. My speaker of the year, the Magnepan 3.6R, is made in Minnesota, Vandersteen speakers are made in California, and Thiel speakers come from Kentucky.
Would that tempt you to buy American hi-fi? Sure, a lot of American hi-fi is expensive, but there's affordable gear made in the United States. The Woo Audio WA3 headphone amp, selling for $470, is handmade in New York.
What do you buy that's made in the States?
Our troubled domestic auto industry is at least still building cars here, which is more than you can say about electronics, computer, video, and camera vendors. Even clothing and shoes are mostly made elsewhere. It's not just the loss of blue-collar manufacturing gigs; design and engineering jobs are increasingly outsourced.
When shopping, do you look at the label or box to see where the product you're about to buy is made? If you had a choice of an American-made product and an imported one, would the country of origin play a part in your buying decision? If the American product was 10 percent pricier, would you buy it, even if you judged quality of the two to be about the same?
I just bought a new couch (for a great price), and it was made in North Carolina. That's my personal stimulus plan.
Sure, quality matters, but if we go on exporting jobs, how will we maintain our standard of living? I could make the same case for buying online versus shopping in your city or town. Those local shops employ your family, friends, and neighbors; would you pay extra to keep the dollars in your community?
High-end audio products, like the three I mentioned in Thursday's post, the Benchmark DAC1 USB and Woo Audio WA3 headphone amplifiers, as well as the Grado GS-1000 headphones, are all made in New York. My speaker of the year, the Magnepan 3.6R, is made in Minnesota, Vandersteen speakers are made in California, and Thiel speakers come from Kentucky.
Would that tempt you to buy American hi-fi? Sure, a lot of American hi-fi is expensive, but there's affordable gear made in the United States. The Woo Audio WA3 headphone amp, selling for $470, is handmade in New York.
What do you buy that's made in the States?
The Food sector can help pull economies from recession
The food industry’s relative immunity to the effects of recession, and the strong links throughout the supply chain, mean it can play a part in reinvigorating the whole economy, say agricultural economists from Greece.
While industries that once seemed steadfast, like banking, automobiles and aviation, have been badly hit by the global recession, the food sector has suffered far less. While there has been close attention to costs, financial results of many major players have shown level growth at worst. Even if they trade down to cheaper products, consumers still need to eat.
But the overall role of the food industry in the economy is often ignored or played down, according to authors of a new paper in Trends in Food Science and Technology, while the main focus is on feeding the population and keeping it healthy.
As a result, the food industry is left out of stimulus packages, which instead channel assistance to industries that are facing collapse. Konstadinos Mattas and Efthimia Tsakiridou, of Aristotle University of Thessaloniki, say this strategy may endanger the future and positioning of less affected industries like food.
“The food sector can reinvigorate the whole economy,” they write. As a sector, it has the highest output and employment multipliers in many countries – that is, every job in food creates other jobs in parallel sectors. In Emilia Romagna, Italy, the multiplier is 2860 jobs in the region for every 1000 in food.
“Food industry generates huge employment effects as it constitutes the backbone of the whole supply chain, inextricably connecting thousands of enterprises from the retail sector down the line to the farming sector.”
1. Around 300,000 food enterprises exist in the EU, providing jobs for about 4 million people directly.
Stimulus packages should target “shovel-ready” projects, and industries with high multiplier effects, which target relief and welfare, and keep the benefits largely within borders. This is the case for food in the EU, as 75 per cent of trade in food is within the bloc’s borders.
Future research
The authors predict that the current economic conditions will also have an effect on future research directions.
For example, comprehensive approaches are required, societal relations, green growth, safe and healthy nutrition, and new priorities.
“Food industry’s long-term strategies should be redrawn on the base of new thoughts emerging from this crisis, in order to fully fulfil broader economic goals,” Tapioca Flour Gluten-Free Flour Potato Flour Wholesale Spice
While industries that once seemed steadfast, like banking, automobiles and aviation, have been badly hit by the global recession, the food sector has suffered far less. While there has been close attention to costs, financial results of many major players have shown level growth at worst. Even if they trade down to cheaper products, consumers still need to eat.
But the overall role of the food industry in the economy is often ignored or played down, according to authors of a new paper in Trends in Food Science and Technology, while the main focus is on feeding the population and keeping it healthy.
As a result, the food industry is left out of stimulus packages, which instead channel assistance to industries that are facing collapse. Konstadinos Mattas and Efthimia Tsakiridou, of Aristotle University of Thessaloniki, say this strategy may endanger the future and positioning of less affected industries like food.
“The food sector can reinvigorate the whole economy,” they write. As a sector, it has the highest output and employment multipliers in many countries – that is, every job in food creates other jobs in parallel sectors. In Emilia Romagna, Italy, the multiplier is 2860 jobs in the region for every 1000 in food.
“Food industry generates huge employment effects as it constitutes the backbone of the whole supply chain, inextricably connecting thousands of enterprises from the retail sector down the line to the farming sector.”
1. Around 300,000 food enterprises exist in the EU, providing jobs for about 4 million people directly.
Stimulus packages should target “shovel-ready” projects, and industries with high multiplier effects, which target relief and welfare, and keep the benefits largely within borders. This is the case for food in the EU, as 75 per cent of trade in food is within the bloc’s borders.
Future research
The authors predict that the current economic conditions will also have an effect on future research directions.
For example, comprehensive approaches are required, societal relations, green growth, safe and healthy nutrition, and new priorities.
“Food industry’s long-term strategies should be redrawn on the base of new thoughts emerging from this crisis, in order to fully fulfil broader economic goals,” Tapioca Flour Gluten-Free Flour Potato Flour Wholesale Spice
Vacuum pump/compressor for hazardous gases
A new Air Squared semi-hermetic scroll vacuum pump/compressor is smooth, quiet and efficient, ideal for fuel cells, natural gas boosters and pumping corrosive, radioactive or hazardous gases
The new Air Squared semi-hermetic scroll vacuum pump/compressor delivers 80+% volumetric efficiency with smooth, quiet operation.
The Patent-pending design is ideal for fuel cells, natural gas boosters and pumping corrosive, radioactive or hazardous gases.
The new semi-hermetic scroll vacuum pump/compressor is available in a variety of materials, with appropriate seals, that allows it to handle almost any gas other than air, including radioactive material, bio-hazardous gases, helium, nitrogen, oxygen, natural gas and other corrosive and hazardous gases.
The vacuum pump/compressor is ideal for medical and bio-medical applications, fuel cells, natural gas boosters, and handling of radioactive materials.
A full-hermetic design is also available.
Originally developed to pump helium for a space-based cryo-cooler, the new semi-hermetic scroll features a unique, patent pending design that completely seals the pumping section of the unit, but allows cooling of both scrolls.
Cool operation enables the unit to operate effectively at higher pressures and vacuums.
As a compressor, the unit can develop up to 60 psig (4 barg) and has a displacement of 2 CFM (57 lpm).
The vacuum model can develop up to 200 mtorr ultimate vacuum, with a displacement of 2 CFM (57 lpm).
AC or DC motors can be supplied.
The Air Squared patented coating technology for the scrolls allows the unit to run at volumetric efficiencies greater than 80%, or produce higher ultimate vacuums.
The wetted surfaces of the unit are constructed of stainless steel, nickel, and hard anodised aluminium.
All stainless steel and nickel construction is available for corrosive gases.
Standard seals are PTFE composite, with other materials, such as polyimide, available to withstand specific gases.
The rotary scroll design provides quiet, balanced, pulse-free operation with a noise level of just 50 dBa.
Scroll compressors use true rotary motion, so they can be dynamically balanced for nearly vibration-free operation.
Power delivery is continuous, which virtually eliminates pulsation and associated noise.
There are only two primary moving parts, with no inlet or discharge valves to break or make noise, and no associated valve losses.
The operating element of a scroll compressor is made up of two identical involutes, which form right- and left-hand components.
One scroll is indexed or phased 180 degrees with respect to the other to allow the scrolls to mesh.
This indexing creates crescent shaped gas pockets, bounded by the involutes and base plates of both scrolls.
In operation, one scroll remains fixed; the other is attached to an eccentric driven by the motor shaft.
As the moving scroll orbits around the fixed scroll, the pockets formed by the meshed scrolls at the outer edge follow the spiral inward and shrink in size.
Gas entering the scroll is trapped in two diametrically opposed pockets and compressed as the pockets move toward the centre, where the discharge port is located.
For additional information on the rotary scroll compressor/vacuum pump, contact Rob Shaffer at Air Squared Hermetic Seals Hermetic Sealing Glass to Metal Seals Glass to Metal Feedthrough feed thru.
The new Air Squared semi-hermetic scroll vacuum pump/compressor delivers 80+% volumetric efficiency with smooth, quiet operation.
The Patent-pending design is ideal for fuel cells, natural gas boosters and pumping corrosive, radioactive or hazardous gases.
The new semi-hermetic scroll vacuum pump/compressor is available in a variety of materials, with appropriate seals, that allows it to handle almost any gas other than air, including radioactive material, bio-hazardous gases, helium, nitrogen, oxygen, natural gas and other corrosive and hazardous gases.
The vacuum pump/compressor is ideal for medical and bio-medical applications, fuel cells, natural gas boosters, and handling of radioactive materials.
A full-hermetic design is also available.
Originally developed to pump helium for a space-based cryo-cooler, the new semi-hermetic scroll features a unique, patent pending design that completely seals the pumping section of the unit, but allows cooling of both scrolls.
Cool operation enables the unit to operate effectively at higher pressures and vacuums.
As a compressor, the unit can develop up to 60 psig (4 barg) and has a displacement of 2 CFM (57 lpm).
The vacuum model can develop up to 200 mtorr ultimate vacuum, with a displacement of 2 CFM (57 lpm).
AC or DC motors can be supplied.
The Air Squared patented coating technology for the scrolls allows the unit to run at volumetric efficiencies greater than 80%, or produce higher ultimate vacuums.
The wetted surfaces of the unit are constructed of stainless steel, nickel, and hard anodised aluminium.
All stainless steel and nickel construction is available for corrosive gases.
Standard seals are PTFE composite, with other materials, such as polyimide, available to withstand specific gases.
The rotary scroll design provides quiet, balanced, pulse-free operation with a noise level of just 50 dBa.
Scroll compressors use true rotary motion, so they can be dynamically balanced for nearly vibration-free operation.
Power delivery is continuous, which virtually eliminates pulsation and associated noise.
There are only two primary moving parts, with no inlet or discharge valves to break or make noise, and no associated valve losses.
The operating element of a scroll compressor is made up of two identical involutes, which form right- and left-hand components.
One scroll is indexed or phased 180 degrees with respect to the other to allow the scrolls to mesh.
This indexing creates crescent shaped gas pockets, bounded by the involutes and base plates of both scrolls.
In operation, one scroll remains fixed; the other is attached to an eccentric driven by the motor shaft.
As the moving scroll orbits around the fixed scroll, the pockets formed by the meshed scrolls at the outer edge follow the spiral inward and shrink in size.
Gas entering the scroll is trapped in two diametrically opposed pockets and compressed as the pockets move toward the centre, where the discharge port is located.
For additional information on the rotary scroll compressor/vacuum pump, contact Rob Shaffer at Air Squared Hermetic Seals Hermetic Sealing Glass to Metal Seals Glass to Metal Feedthrough feed thru.
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