Comprehensive Overview of Magnetic Level Gage Solutions

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Explore the advanced capabilities, product offerings, and applications of magnetic level gages in the industry. From replacement options to continuous level measurement solutions, these engineered products offer reliable performance and customizable features for various operational needs.

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Magnetic Level Gage Rep Training 2015 Ben Coutee

Topics Capabilities Overview Product Offering Bridle and magnetic level gage standards Magneostrictive vs. GWR Testing (NDE) Applications Questions?

Product capability A complete line of MLI, bridle and instrument solutions Design, engineering, and integration for all systems Piping, welding and instrumentation expertise Top tier support for product The magnetic level gage is an engineered solution!

Product offering

Product Offering Replacement of sight glass 8 basic styles with customized options Sold as an engineered product Best lead times in industry Low maintenance option for end users Highly visible (200 ft) Customizable options Magnetic Level Gage

Product Offering Send a signal back to the control room indicating level (Continuous) Current pulse from transmitter start pulse Interaction of pulse and magnetic field causes a torsional wave return pulse Time between start pulse and return pulse is proportional to position of float MLI + Magneostrictive Transmitter

Product Offering Continuous level measurement back to control room Used as separate instrument from MLI Higher temp/pressure capabilities Dual Chamber design GUIDED WAVE RADAR is based upon the principle of TDR (Time Domain Reflectometry). Pulses of electromagnetic energy are transmitted down a probe. The pulse is reflected when it reaches a liquid surface. MLI + Guided Wave Radar

Product Offering Quest-Tec level switches are hermetically sealed, non- mercury, bi-stable latching switches designed for use with Magne-Trac level gages. The bias magnet design latches the switch maintaining the contact after the level continues to rise or fall. The switch will change state when the float magnet passes by. The switches are fully adjustable and non-invasive. Level switches are mounted to the Magne-Trac chamber with all 316 Stainless Steel worm gear pipe clamps. Switch points can be changed easily at any time without any interruption to the visual indication or process. Level Switches Available in 1, 5 & 10 AMP

Product Offering Insulation (HB) Cryogenic Insulation (CI) Steam Trace (ST) Electrical heat trace (EH) Freeze Protection (FP) Isolation valves (IS) Vent/drain valves (VD)

4 Key Factors in Quoting!! Specific gravity / Process fluid Maximum/Operating Pressure Maximum/Operating Temperature Center to Center Dimension

Specific Gravity/Process fluid Why both? Essential pieces of information that feed into the overall design of the gage. Will directly affect the float design, chamber size and dimensions of dead zone. Specific gravity vs. chamber design

Pressure / Temperature Considerations Having a direct affect on the specific gravity of a process fluid, knowing the operating pressure and temperature is essential to overall design. Pressure can change sizing of the chamber during specification Temperature can be limiting on the type of technology available and needs to be taken into consideration in all applications (cold or hot) Flag material will change in high temp scenario Look for process media that solidifies at certain temperature and offer heat tracing options or freeze protection

Float Design (Oblong) Oblong available in 316, titanium, CPVC, hastelloy C and carbon fiber 316 SST floats are .020 wall thickness and used in applications up to 400 PSI SG range is .60 and up 360 DEG ring magnet Most common used float Can easily be replaced (within a few hours)

Float Design (Spherical) Titanium material Designed to handle up to 2800 PSI Will directly affect sizing of the chamber May be necessary under .60 depending on pressure/temperature Will affect the overall length of the gage (be mindful of sizing limitations)

Chamber Design Standard chamber is 2 SCH 40 Available options: 2 SCH 40, 2.5 SCH 80, 3 SCH 40 & 3 SCH 80 QTS does not do any SCH 10 (is this a limiting factor?) Material options: 304 SST, 316SST, Hastelloy C, CPVC, Monel and PVDF (Kynar) Material combinations? Full bore process connections available (no pulled extrusions) Vent / Drain connection types

Flange class process connections

Process Connections SW - Socket Weld RF Raise Faced Flanges RJ/RTJ Ring Type Joint (Gasket) WN Weld Neck SO Slip-On LJ Lap Joint (not common)

Branch Connection Reinforcement

Vent / Drain All MLI s require a flanged end to install the float. Drain Plugs: , or 1 NPT / SW 316 SS (or like material) Vent Plugs , or 1 NPT 316 SS

High Temp Molded Nylon Flags Wide Flag Indicator Non-Corrosive / Low Friction Molded in Color, UV Resistant Black=Vapor, Yellow=Liquid 1.4 design provides greater visibility and magnetic field attachment Heavy anodized aluminum housing (Stainless steel housing available) Sealed with 4 O -Ring beads Polycarbonate shield: Glass option available 316 SS photo etched scale option (inches, MM, %....available) Note indicator viewing position

3 Main Parts Chamber Indicator Float

Magneostrictive transmitter Use as a SYSTEM 4-20 mA loop powered transmitter HART communications Explosion proof (all classes available) Optional Digital display Lengths from 20 to 25 - dead leg Temperatures to 257 Excellent redundancy device Easily attaches to the exterior of Magne-Trac Set it and forget it rarely needs calibration or maintenance

Guided Wave Radar

Guided Wave Radar Separate Chambers allow for unimpeded float travel- dead leg GWR not influenced by process conditions- true level measurement High temperature applications: pressure and temperature has little effect if any Temperatures to 750 Pressures to 5800 psi HART, PROFIBUS, and FOUNDATION fieldbus available Can be used in conjunction with Magneostrictive transmitters

Welding and documentation standards Follows ASME B31.1 manufacturing codes Certified Welders and Welding Certificates ISO 9002:1000 Certified WPS Weld Procedure Specification Material Specific Procedures PQR Procedure Qualification Records Material Specific Records Hydro Testing Records Chamber Tested at 1.5x Maximum Operating Pressures Float Tested at 1.25x Maximum Operating Pressures NACE Certifications Primarily concerned with H2S Service MR0175

PT/LP Liquid (Dye) Penetration Inspection Done in-house at QTS Level II inspectors on staff VT Visual Inspection Done in-house at QTS MT Magnetic Particle Inspection Material needs to be magnetic 3rd Party independent lab RT X-Ray/Radiographic Inspection 3rd Party independent lab UT Ultrasonic Inspection 3rd Party independent lab LT Air or Water Pressure Testing DT Destructive Testing Testing

Not so common applications HF Acid in refineries Sour Crude Oil tanks Gas / Liquid separators Oil seal reservoirs Sodium Hypochlorite tanks Caustic Soda Acid Storage tanks Boiler feed water Compressor oil sump level

Field Considerations Dirty service How does dirty service affect a magnetic gage and its field use How do we combat the issues associated with dirty service?

Field Considerations Flashing Oversized chamber principle much like what's offered in dirty service Guide rods Insulation?

Field Considerations Interface applications There are many applications where the interface between two immiscible liquids must be monitored or controlled. These involve oil and water separators, wastewater disposal tanks and a multitude of chemical processes Mags can be used with a specially weighted float that will sink in the top layer and float in the bottom layer provided there is a specific gravity difference of 0.1 between liquids

Field Considerations Boiler Drum level If the plant is adhering to PG60 special consideration needs to be taken in magnetic gage specification A magnetic gage can only be used up to 900 PSI A magnetic gage falls under remote level indication not direct reading sight glass Great chance to use multiple remote level indicators off one set of taps

Kynar Level Gages Frequently a level gage application requires the wetted parts to be hastelloy, zirconium, titanium or other exotic material because of a highly corrosive nature. As a cost savings we can offer gages made from solid Kynar. The material is similar to Teflon but is less porous. It is limited by a temperature of 280 DEG F. It is only about 25-30% more than stainless but about half the price of a hastelloy gage

Gages in the Food Industry QTS has a gage that can be 3A approved for use in the dairy industry. Anyone in the food industry generally recognizes this approval and the 3A symbol. Whether it is brine, vinegar, beer, vegetable oil or mile products they want to have a sanitary version of the MLI.

Pump up / Pump down Various types of process tanks frequently need some type of automatic level control. Receiver vessels need to be pumped to storage when they become full (pump down) and feed tanks need to be refilled when they become low (pump up) The QTS 3 or 5 AMP reed switch can be used in conjunction with a latching relay controller for pump up and pump down operation