Ultrasonic level transmitters used in dry bulk solids level monitoring are starting to be eclipsed. Radar technology is now so good that it can get a signal and level or distance off of very unreflective media such as polypropylene pellets. Compared to ultrasonics, radar is often more reliable, easier to use, and has lower maintenance requirements. Check out this video from Swanson Flo highlighting the Schneider Electric LR64 and LR65 radar level transmitters.
Mass Flow Measurement of low flow rates, independent of fluid properties.
With the development of the mini CORI-FLOW™ series Bronkhorst achieved a technological breakthrough in Coriolis mass flow measurements and control, by realizing a compact, cost-effective Coriolis Mass Flow Meter/Controller for accurate measurement and control of (very) low flow rates. The unique design of the miniature Coriolis sensor features unsurpassed performance, even with changing operating conditions in pressure, temperature, density, conductivity and viscosity.
Contrary to many other Coriolis flow meters on the market, mini CORI-FLOW™ offers integrated PID control and close-coupled control valves or pumps, thus constituting very compact, cost- and space-saving, precise Coriolis Mass Flow Controllers.
Understanding the Operation of a Steam Filter with Integral Cyclone Separator: An Inside Look at the TLV SF1
There are important factors to consider when defining a thermal mass flowmeter to ensure precision and performance in a gas flow application.
- What is mass flow?
- Why is mass flow important?
- 9 benefits of thermal mass flowmeters
- Importance of proper installation
- Selecting the proper meter and specifications
- Wiring considerations
- Applications to avoid
Constant Seat Contact
Straight Thru Flow
Multiple Orifice Layout
Disc plate overlap
One of the most compelling features of the Paramount™ is its accompanying free software, SageCom™. The SageCom™ software effortlessly connects the Sage Paramount to your PC via a separate mini USB connector1 (cable supplied) located within the back terminal enclosure. This connector is independent of the normal Modbus communication channel allowing validation or reconfigurability of your Paramount, even while it’s standard Modbus output is connected to a network of additional Paramount meters going to the SCADA system.
- Siemens® - Westinghouse®
The TFX Ultra transit time ultrasonic meters from Dynasonics / Badger Meter measure volumetric and energy flow of clean liquids, as well as those with small amounts of suspended solids or aeration, such as surface water or sewage. It works by transmitting ultrasonic waves from outside the pipe into the liquid and propagate upstream and downstream. The flow velocity is determined by the difference in the time of flight and is used to calculate the volumetric flow.
For more information, contact Swanson Flo. Visit their website at https://swansonflo.com or call 800.288.7926.
TLV Consulting and Engineering Services constructed a clear piping system to visualize the complex bi-phase flow within a steam condensate return system to determine if water hammer can be reduced or eliminated in certain less-than-ideal piping configurations. Sometimes, condensate returns are incorrectly considered to be single-phase flow, but in reality the pipe volume can be primarily filled with flash steam. This creates a two-phase flow condition that presents challenges to the desired action of gravity drainage. Elevation changes in 2 phase condensate return lines are particularly prone to creating condensate backup which can lead to damaging water hammer. The damage can be particularly severe due to the magnitude of condensate mass present as the pipe size increases in diameter.
Two scenarios are examined. First is a commonly seen piping installation of flashing condensate with a vertical rise. Wave action can be seen in the top pipe. It is caused by high velocity steam moving over the surface of the liquid gradually forming waves within the pipe. When the wave grows large enough, it momentarily seals the cross section of the pipe, building a pressure wall behind it. This causes a slug of water to be sent down the line, potentially causing serious damage to piping, valves, gaskets or fittings.
Additionally, in a flashing condensate line, the vapor space is occupied by low energy flash steam which can collapse and generate hammer as condensate rushes into fill the void. In this video, the vapor is non-condensing air, so the violent back slam of condensate filling an instantaneous void is eliminated for safety purposes. The second video introduces a non-ideal method incorporating a drop down loop seal (or DDLS)to help mitigate some water hammer effects. The ideal solution is always to incorporate gravity drainage in the flashing condensate return system design. However, when gravity drainage was not accomplished during the original design, the DDLS may reduce hammer and can be evaluated on a case-by-case basis by a professional engineer for suitability and safe operation. Notice the less violent flow draining into the loop where the wave action was occurring in the upper pipe.
This piping configuration minimizes the length of pipe where surging can occur and reduces the mass of potential water slugs. The result can be smoother flow with lessened water hammer. Although the DDLS is demonstrated using a loop with horizontal piping to enable visualization of the vapor/liquid interface promoting upward flow, it is considered that joining two long radius elbows with no horizontal section between them could further reduce hammer.
For more information about proper steam or condensate system design, contact Swanson Flo. Call them at 800-288-7926 or visit their website at https://swansonflo.com.
The Schneider Electric 80 GHz Radar (FMCW) Level Transmitter for liquids in narrow tanks with internal obstructions.This device is a non-contact radar level transmitter that uses FMCW technology. It measures distance, level and volume of liquids and pastes. It has an empty spectrum function that filters false reflections caused by equipment inside the tank.
- LR75 Free Space Radar
- 80 GHz FMCW technology
- cQPSus XP
- 4 -20mA /HART® 7
- 1/2" NPT Cable Entry
- Backlit Display
- (-14.5..580 psig) I (-40 deg F to +302 F) / FKM/FPM Process Seal
- 1-1/2“ DN40 Lens Antenna
- 1-1/2“ NPT ASME Process Connection
- Very low cost of ownership
Radar level transmitters provide non-contact level measurement. All radar level detectors send microwave beams, emitted from a sensor, to the surface of the liquid in a tank. The electromagnetic waves returns back to the sensor after hitting the surface of the fluid. Radar is the preferred technology for level measurement in many of today’s industrial applications. Newer high-frequency technology (80 GHz) offers advantages in certain application to older low (10 GHz) and mid-frequency (24 GHz) technologies. Selecting the best microwave frequency for your application is crucial. In as much, understanding the relationship between frequency and beam angle is very important.
In this video, Jeff Blair, Offer Manager for level products at Schneider Electric, presents the difference in beam angle at various frequencies. He also demonstrates how to use Beam Angle Calculators to determine beam width at various places in a tank or vessel.
For more information about radar level instrumentation, contact Swanson Flo. Call them at 800-288-7926 or visit their website at https://swansonflo.com.
We at Swanson Flo Company continue to navigate the ever changing COVID-19 pandemic. We are closely monitoring and following the guidance available through the Centers for Disease Control (CDC), the World Health Organization (WHO) and state and regional public health authorities. We are committed to keeping the safety of our customers, business partners, and team members at the center of all our decisions and actions.
Securing our supply chain is a priority for us. We are working with all of our key suppliers on a daily basis to monitor any potential supply disruption and /or material shortages that may impact us and you. As of today, we have not recorded any specific disruptions of our upstream supply chain. Shipments to our customers are still flowing and our inventory is considerable.
Swanson Flo is:
- Fully Operational - SwansonFlo Company remains open during normal business hours. Our territory managers will still make in-person visits upon request. We are using all available communication techniques to continue to provide excellent customer support.
- Continues its Technical Assistance and Support – Our customer service team is able to answer your questions and take orders via phone or email. We will not change our commitment to providing exceptional client services delivered by a team of highly qualified individuals.
- Continues its Service Capabilities – Our highly trained service and repair experts are available via phone or in person via request.
As always, Swanson Flo greatly appreciates your business.
Protecting Draft Range Transmitters from Storms and Wind
Normally, you wouldn’t think about an enclosure in the furnace or boiler area on these applications because they are measuring air flow or air pressure and are not subject to freezing. Pressure measurement in furnace and boiler combustion is critical for safety, efficiency and environmental control.
It doesn’t require heavy wind to cause problems: a 5 – 7 mph wind across the ambient pressure port might cause a 0.1” pressure change, 12 – 15 mph may create a 0.8” change. When the full range is 1 – 2” that can be a 40 – 80% error reading.
Even light wind across the open port can cause 10% error.
For example - in a a draft transmitter with full scale of 1” H2O ...
- 5 – 7 mph wind can cause up to a 10% full scale error.
- 12 – 15 mph wind can cause up to a 75% full scale error.
The pressure range is so small, often just 1 – 2” of H2O or 2 – 4 mm of Hg, that even a light breeze might cause automated dampers to fluctuate or trigger systems to shut down. Using a differential pressure transmitter the reference measurement is vented to atmosphere, where air flowing past the open port creates pressure changes and errors in furnace, heater and boiler combustion box pressure. As part of the Safety Instrumented System these measurement errors can create nuisance maintenance and shutdowns affecting the entire unit.
The O'Brien VIPAK Draft Transmitter enclosure, is a field tested and proven solution addressing the common sources of draft transmitter installation error with:
- Still Air Chamber
- Atmospheric Equalization
- Uniform Capsule Temperature
The O'Brien VIPAK draft range transmitter enclosure atmospherically equalizes the still air chamber for the transmitter and manifold. The pressure inside the enclosure changes at the same rate as the barometric pressure but is unaffected by wind or wind gusts.
The enclosure system also ensures that both sides of the instrument measurement capsule are at the same temperature. Since these instruments are often placed near the furnace, heater or boiler one side can be hotter than the other creating an error in measurement.
A large refinery was experiencing furnace upsets and shutdowns caused by storms and wind in the unit. They installed two O'Brien Draft Transmitter Enclosures on their most trouble prone units as a trial. After a severe storm hit and the units with the O'Brien Draft Transmitter enclosures ran with no problems they installed another 128 protection enclosures. To date there have been no more upsets or shutdowns caused by wind induced measurement errors.
The O'Brien STILL AIR PORT is a critical component of the draft range transmitter solution. It equalizes the still air chamber for the transmitter and manifold, allowing the pressure inside the enclosure to change at the same rate as the barometric pressure and not allowing wind or wind gusts to have any affect.
For help in determining how you can protect your instrumentation from the effects of weather, contact Swanson Flo. Call them at 800-288-7926 or visit their website at https://swansonflo.com.
Swanson Flo Performance supports every process control customer with region-based, full-capability service and repair. Their factory-certified technicians provide you with a complete overhaul and repair of the control valves, actuators, and instrumentation. Equipment is fully disassembled, inspected, cleaned, reassembled, calibrated, and tested to meet factory original standards. Swanson Flo Performance utilizes only factory OEM parts to repair your equipment.
- Commissioning - to ensure that equipment performs to expected specifications.
- Mechanical Inspection - detailed reports on the mechanical health of your valves.
- Valve Repair - returning the customer's valves to "like new” condition.
- Onsite Repair - bringing resources and equipment to the customer's facilities.
- OEM Parts - certified original manufactured parts maintaining highest standards.
- Re-instrumentation - upgrading performance and equipment to meet ever-changing needs.
- Site Surveys - gathering plant data for asset management.
- Training - hands-on technical and practical training custom designed for their customers.
Swanson Flo is a multi-brand factory trained control valve repair center providing factory trained technicians and certified repairs and parts from Foxboro/Schneider Electric and Flowserve Limitorque (notably, Swanson Flo is the only FM approved Limitorque repair facility in the upper-midwest).
For more information, contact Swanson Flo by calling 800-288-7926 or visit their web site at https://swansonflo.com.
It's not unusual for Jordan Valve applications to require a solutions-oriented approach, where in-house engineers and application specialists work closely with the customer to solve a stubborn problem. Whether requiring a unique valve design, or needing special construction materials, Jordan Valve has both the know-how and manufacturing capabilities to meet the requirement.
This guide provides 25 real-world applications where Jordan Valve products are used.
For more information, or if you wish to discuss an application you're working on, contact Swanson Flo. Call them at 800-288-7926 or visit their web site at https://swansonflo.com.
This video demonstrates the removal and installation of the feedback mechanism of the Flowserve Logix 3800 valve positioner.
Make sure the valve is bypassed or in a safe condition. Disconnect power to the positioner. Disconnect air supply to the positioner. Remove the take off arm and follower arm.
Note, it is recommended that when the positioner is removed from the valve, it is taken to a clean work environment for disassembly and reassembly.
Note, the procedure is the same for both intrinsically safe, or explosion-proof, positioners.
Begin by removing the three screws that attach the feedback assembly to the positioner housing. Install the replacement feedback assembly to the positioner housing.
Note, the orientation is irrelevant since the feedback mechanism has a clutch. Torque the screws to 0.9 Newton meters or 8 inch pounds. Next reconnect the positioner follow arm and take off arm to the valve.
For more information, contact Swanson Flo. Visit their web site at https://swansonflo.com, or call them at 800-288-7926.