metering pump turndown ratio

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  • What is a turndown ratio in metering pumps? -

    2021-4-2 · Turndown is the ratio of a metering pump’s output. For example, if a pump has a turndown ratio of 1000:1, that means it should be able to move anywhere from 1,000 GPH or 1 GPH within the same accuracy rating.

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  • How to Evaluate a Metering Pump’s Turndown

    2021-4-30 · Turndown is an important specification that defines a metering pump’s output. What is Turndown? Turndown is expressed as a ratio of a pump’s output. If a metering pump is capable of 1,000 GPH maximum and it has a 1000:1 turndown ratio, then it can be adjusted to a flow rate as low as 1 GPH and it should still be

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  • These metering pumps feature a very large turndown

    2013-2-10 · Most metering pumps have a turndown ratio of 10:1,which simply means that the pump is within its accuracy rating anywhere between 10% and 100% of capacity. The turndown ratio of 0.6 probably refers to a turndown of 60% of maximum capacity.

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  • Criteria for Evaluating a Metering Pump’s Turndown with ...

    2017-5-11 · What is a turndown ratio? A turndown ratio is the rated capacity of a pump divided by (compared to) the minimum capacity that can be obtained while also maintaining a specified steady state accuracy, flow, repeatability and linearity. What is a typical turndown ratio? For most metering applications, 10:1 is the typical turndown requirement.

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  • turndown ratio metering pump - Pump engineering -

    2016-6-2 · Turndown is expressed as a ratio of the metering pump output. If a pump is capable of a maximum of 1,000 gallons per hour (gph) and it has a 100-to-1 turndown ratio, then it can be adjusted to a flow rate as low as 10 gph and still perform within its accuracy rating. But a turndown ratio means little without an accuracy rating as well.

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  • Turndown Ratios - PROMINENT WATER

    Although a metering pump can generally be adjusted to pump at any flow rate between 0 and its maximum capacity, its accuracy is measured over a range determined by the pump’s turndown ratio. Most metering pumps have a turndown ratio of 10:1, which simply means that the pump is within its accuracy rating anywhere between 10% and 100% of capacity.

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  • Metering Pumps Need Turndown for Efficiency -

    2020-7-8 · Some newer designs of metering pumps feature higher accuracy, and a greater turndown ratio of 100:1. Therefore, this design will accurately dose anywhere between one per cent and 100 per cent of capacity. Figure 3 Article courtesy of Kelair Pumps Australia “When Pump Knowledge Matters”.

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  • Criteria for Evaluating a Metering Pump’s Turndown with ...

    2021-4-30 · Turndown is an important specification that defines a metering pump’s output. What is Turndown? Turndown is expressed as a ratio of a pump’s output. If a metering pump is capable of 1,000 GPH maximum and it has a 1000:1 turndown ratio, then it can be adjusted to a flow rate as low as 1 GPH and it should still be

    Get Price
  • Metering pumps - Pump Industry Magazine

    Most metering pumps have a turndown ratio of 10:1 which simply means that the pump is within its accuracy rating anywhere between ten per cent and 100 per cent of capacity. Some newer designs of metering pumps feature higher accuracy, and a greater turndown ratio of 100:1.

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  • Chemical Metering Pumps | LMI Pumps

    Although a metering pump can generally be adjusted to pump at any flow rate between 0 and its maximum capacity, its accuracy is measured over a range determined by the pump's turndown ratio. Today’s hydraulically actuated metering pumps have a turndown ratio of 1,000-1, which means the pump will accurately dose chemicals anywhere between .1% ...

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  • Minimum Flow Rate for Gear Pumps - Liquiflo

    2016-2-4 · Turndown Ratio of a Gear Pump A gear pump is an excellent choice for metering fluids. Often times the pump is called upon to meter a range of flow rates. The ratio of this range (maximum flow divided by minimum flow) is called the turndown ratio or simply, the turndown. For example, the range of 10 GPM to 1 GPM would be a turndown of 10:1.

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  • Metering Pump - d1pkofokfruj4.cloudfront.net

    2020-10-2 · chemical metering pump: Engineered to meet today’s most demanding standards for accuracy, reliability, and process control flexibility. EXCEL XR is not just another metering ... By using a variable speed drive, the EXCEL XR pump is able to achieve ± 1% steady state accuracy over 1000:1 turndown ratio by controlling the stroke profile. As a ...

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  • Digital Technologies Advance Performance of

    2006-9-1 · Hibbert was most excited about the high turndown ratio the digital pump offered. The utility sees a huge variation in stream flow and turbidity throughout the year, and their need for treatment chemicals varies widely. In the past they have needed two different sizes of solenoid metering pumps to meet the treatment chemical flow range.

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  • Walchem Diaphragm Metering Pump IX-B015TCT-U

    High resolution motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 1000:1 and flowrates from 300 L/H down to 7.5 mL/H. ±1% High Accuracy Combined with precise motor control, an efficient valve design maintains accurate flow rates to allow a low-cost, mechanically-driven diaphragm pump to ...

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  • Metering Pumps - Walchem

    2020-2-21 · metering pump with a maximum capacity of 114 GPH (432 l/h) and a maximum pressure of 225 PSI (15 bar). This expanded output range makes LK a perfect complement to the E Series metering pump line. LKN pumps are ideal for larger chemical feed applications in a wide range of fields, including water treatment, chemical process, agriculture,

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  • Delta | ProMinent Fluid Controls, Inc.

    2019-8-20 · The delta® is a solenoid driven, diaphragm metering pump. It covers a feed range from 2.0 gph at 363 psi (8 l/h at 25 bar) to 20 gph at 29 psi (75 l/h at 2 bar). Due to its wide adjustment range – both the stroke length and the stroke rate can be varied – this output range is covered by seven different pump …

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  • SOLENOID METERING PUMPS

    2018-10-22 · metering pump technology. Technology is the key to delivering responsible products to the markets that we serve. Leading the way in the development of metering technologies, Pulsafeeder continues to set the standard for accuracy, reliability and safety. Helping customers find a new approach to an old problem is what we do best.

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  • Minimum Flow Rate for Gear Pumps - Liquiflo

    2016-2-4 · Turndown Ratio of a Gear Pump A gear pump is an excellent choice for metering fluids. Often times the pump is called upon to meter a range of flow rates. The ratio of this range (maximum flow divided by minimum flow) is called the turndown ratio or simply, the turndown. For example, the range of 10 GPM to 1 GPM would be a turndown of 10:1.

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  • Metering Pumps - Walchem

    2020-2-21 · metering pump with a maximum capacity of 114 GPH (432 l/h) and a maximum pressure of 225 PSI (15 bar). This expanded output range makes LK a perfect complement to the E Series metering pump line. LKN pumps are ideal for larger chemical feed applications in a wide range of fields, including water treatment, chemical process, agriculture,

    Get Price
  • Metering Pump - d1pkofokfruj4.cloudfront.net

    2020-10-2 · chemical metering pump: Engineered to meet today’s most demanding standards for accuracy, reliability, and process control flexibility. EXCEL XR is not just another metering ... By using a variable speed drive, the EXCEL XR pump is able to achieve ± 1% steady state accuracy over 1000:1 turndown ratio by controlling the stroke profile. As a ...

    Get Price
  • Nikkiso Metering Pumps - taikkiso

    NIKKISO METERING PUMPS are designed to operate under toughest applications for continuous operation. With the precise handling, stoke length is adjustable from 0~100% while the pump is running or stopped. NIKKISO METERING PUMPS comform to American Petrochemical Institute API-675 2nd edition design requirement. .Steady state accuracy within +0.5% under 10:1 turndown ratio…

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  • MILTON ROY PUMPS – Multiphase Oil and Gas

    Greater accuracy means better control of the treatment process and more efficient chemical usage. In addition, these pumps offer a 100:1 turndown ratio. The advanced design enables the pumps to respond instantly to changes in dosage rate, making it the ideal metering pump for a wide range of flow rates in water and wastewater treatment ...

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  • Walchem Diaphragm Metering Pump IX-B015TCT-U

    High resolution motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 1000:1 and flowrates from 300 L/H down to 7.5 mL/H. ±1% High Accuracy Combined with precise motor control, an efficient valve design maintains accurate flow rates to allow a low-cost, mechanically-driven diaphragm pump to ...

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  • Dosing Pump - Mechanical Diaphragm Pump

    Steady State Accuracy Of +/-2.5% Of Stroke, Turndown Ratio-10:1; Repeatability +/-2.5%; Inbuilt Pressure Relief Value & Vaccum Valve Safeguards The Pump. Double Diaphragm With Diaphragm Rapture Indication (RIA) Is Also Avialable For All Standard Models. Performance Conforms To API 675 Standards. Material of construction of wet-end part

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  • 슬라이드 제목 없음

    2015-5-17 · Metering Pump Reciprocating Diaphragm Metering Pump Stroke Cycle Control of Reciprocating Metering Pump Output Turndown Ratio What claims to be a Metering Pump, but isn’t? Metering Pump Liquid Ends

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  • Peristaltic Pumps: A Simple Solution for Abrasive and ...

    2011-12-15 · a single peristaltic pump can cover. The “turndown ratio” or “flow range” of a peristaltic pump is unparalleled. A high quality perista pump is capable of over 2000:1 flow range (max flow to min flow) by simply controlling one parameter: the rotor speed. With the added versatility of putting different tube sizes into one

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  • G Milton Roy Metering Pump - Pump Supermarket

    The G series milton roy metering pump, also known as the MACROY pump, is now NSF/ANSI 61 and 372 certified for municipal compliance and safety assurance. Capable of handling pressures up to 175 psi (12 bar) and flow rates up to 310 gph (1181 l/h) it is an ideal pump for water treatment applications.

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  • Nikkiso Metering Pumps - taikkiso

    NIKKISO METERING PUMPS are designed to operate under toughest applications for continuous operation. With the precise handling, stoke length is adjustable from 0~100% while the pump is running or stopped. NIKKISO METERING PUMPS comform to American Petrochemical Institute API-675 2nd edition design requirement. .Steady state accuracy within +0.5% under 10:1 turndown ratio…

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  • Water Treatment Plant Uses Dual Diaphragm Pump

    2021-5-13 · The hybrid CHEM-FEED MD3 diaphragm-type dosing pump has an excellent turndown ratio of 2000:1, and the gentle pumping action means no pulsation dampener is required. With 380 strokes per minute, the CHEM-FEED® MD3 provides a remarkably even, steady flow.

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  • How to Size and - Dover Corporation

    2017-5-12 · Metering pumps that use a variable speed drive will deliver a turndown ratio that is determined by dividing the pump’s stroke speed by its minimum operating speed. A variable speed drive will enable the pump to inject a dose of the same size on each stroke, but since the stroke speeds will change, the doses themselves will be less frequent.

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  • Irakoe Engginering - Jakarta

    2018-7-5 · A metering pump is a reciprocating pump in which precise volume control is provided by varying effective stroke lengths. Such pumps are also known as controlled-volume, proportion or chemical injection pumps. API 675 Performance Requirements. Steady State Flow Accuracy within ± 1% over a turndown ratio of 10:1; Flow Repeatability within ± 3% ...

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  • PULSAtron Series A Plus Metering Pump Datasheet

    2020-8-14 · with a standard turndown ratio of 100:1, and optional ratio of 1000:1. Metering performance is reproducible to within ± 3% of maximum capacity. Features Manual Control by on-line adjustable stroke rate and stroke length. Highly Reliable timing circuit. Circuit Protection against voltage and current upsets.

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  • Walchem IX Metering Pump - PFC eStore

    Walchem IX metering pump are efficien DC motors for speed control. Motor control adjusts discharge and suction speeds for accurate turndown ratio of 1000:1

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  • Industrial Pumps, Pumping Systems, Peristaltic Pumps

    Reliable Pumping Solutions . Flowrox industrial pumps serve a wide range of process industries. Peristaltic hose pumps and progressive cavity pumps are specifically designed for demanding processes involving abrasive, corrosive, highly viscous or crystallizing media with high solids content.

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  • EZ Series | Iwaki America Inc.

    2021-1-25 · EZ Series electronic metering pumps offer precise chemical injection at a low cost. The compact size and simple control make them ideal for water treatment and OEM applications. The EZ is an ideal metering pump for low-cost chemical dosing.

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  • XRD121-A44A1A2FN LMI Excel XR Series Chemical

    +/- 1% steady state accuracy over 1000:1 turndown ratio Backed by a three-year warranty: Materials of Construction; The Excel XR Series offers a wide range of options and accessories are available to customize the EXCEL XR metering pump to your application. Mechanically actuated diaphragm liquid end materials: Polypropylene PVDF 316L stainless ...

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  • T3 Series Sandwich Insertion Ultrasonic Water Meter ...

    T3-1-2-H residential ultrasonic water meter adopts ultrasonic time difference measurement technology. A highly integrated, developed according to ISO4064-1:2005, GB/T778.1-2007 and other standards. A new generation of fully digital water meter with the advantages of high turndown ratio, ultra-low starting flow, and rich communication methods.

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  • Metering Pumps - Walchem

    2020-2-25 · control and a turndown ratio of 360:1 make this series an exceptional value. The pumps are simple to operate with only three pushbutton keys and the unmatched turndown ratio provides both versatility and high resolution chemical feed which eliminates slug-feeding effects. PUMP SERIES EZ = Electronic metering pump with manual speed control

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  • Metering Pump - blackline - Winston Engineering

    Metering Pump - blackline. ... 2% accuracy over a 100:1 turndown ratio; XRN SERIES. The first compact hydraulic diaphragm pump with integrated safety valve. This solution combines the simplicity and cost-effectiveness of the spring return with the advantages of the hydraulic diaphragm, using an innovative mechanically actuated oil replenishing ...

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  • Sizing and Selecting the Proper Metering Pump -

    2019-4-9 · Metering pumps that use a variable speed drive will deliver a turndown ratio that is determined by dividing the pump’s stroke speed by its minimum operating speed. A variable speed drive will enable the pump to inject a dose of the same size on each stroke, but since the stroke speeds will change, the doses themselves will be less frequent.

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  • BLUE WHITE PERISTALTIC METERING PUMP A2V24

    100:1 turndown ratio. Output rates to: 14.9 GPH (56.2 LPH) and pressures to 125 PSI (8.6 Bar). Inject at maximum pressure in either direction (clockwise and counter clockwise).

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  • Metering pump | WaterWorld

    2012-9-1 · Blue-White® has announced a new addition to the ProSeries-M Line of Peristaltic Metering Pumps. The new M-2 pump offers feed rates from .007 to 15 gph; pressures to 125 psi; a 200:1 turndown ratio; 4-20 mA input and output (dual input ready).

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  • Walchem IX-C150TCN-TL-U Metering Pump, Iwaki IX ...

    High Turndown Ratio - Motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1 (300 l/h to 200 ml/h). High Accuracy - Combined with precise motor control, an efficient valve design maintains accurate flow rates to allow a low-cost, mechanically-driven diaphragm pump to achieve a high accuracy of ...

    Get Price
  • Nikkiso Metering Pumps - taikkiso

    NIKKISO METERING PUMPS are designed to operate under toughest applications for continuous operation. With the precise handling, stoke length is adjustable from 0~100% while the pump is running or stopped. NIKKISO METERING PUMPS comform to American Petrochemical Institute API-675 2nd edition design requirement. .Steady state accuracy within +0.5% under 10:1 turndown ratio…

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  • Pulsatron Series C Metering Pump Datasheet

    2020-8-14 · switch for priming the pump or a toggle on/off switch for manual override of all control functions. Four distinct models are available, having pressure capabilities of 80 PSIG (5.6 BAR), and flow capacities up to 30 GPD (4.7 lph), with a turndown ratio of 10:1. Metering performance is reproducible to within ± 3% of maximum capacity. Features

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  • Walchem Diaphragm Metering Pump EZC31D2-VCM

    EZ Series electronic metering pumps offer precise chemical injection at a low cost. The compact size and simple control make them ideal for water treatment and OEM applications. Advanced microprocessor control and a turndown ratio of 360:1 make this series an exceptional value.

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  • Dosing pump - Stepper motor metering pumps - EMEC

    2021-5-12 · PRISMA stepper motor-driven pump gives you the most accurate dosing, providing an outstanding 1:4800 turndown ratio offering the most homogeneous and precise distribution of the chemical dosed according to the required application.

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  • Nikkiso Metering Pumps - taikkiso

    NIKKISO METERING PUMPS are designed to operate under toughest applications for continuous operation. With the precise handling, stoke length is adjustable from 0~100% while the pump is running or stopped. NIKKISO METERING PUMPS comform to American Petrochemical Institute API-675 2nd edition design requirement. .Steady state accuracy within +0.5% under 10:1 turndown ratio…

    Get Price
  • Walchem IX-C150TCN-TL-U Metering Pump, Iwaki IX ...

    High Turndown Ratio - Motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1 (300 l/h to 200 ml/h). High Accuracy - Combined with precise motor control, an efficient valve design maintains accurate flow rates to allow a low-cost, mechanically-driven diaphragm pump to achieve a high accuracy of ...

    Get Price
  • Series C Chemical Metering Pumps | LMI Pumps

    Its 100% enclosed, chemically-resistance housing makes this pump ideal for the harshest chemical dosing; The Series C offers a wide selection of options and features, making it easy to tailor this pump to your specific application needs. Standard Features. Adjustable stroke frequency and the flexibility of up to 1000:1 turndown ratio

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  • Sizing and Selecting Metering Pumps

    2019-10-10 · Metering pumps with micrometer dials may also feature a variable speed drive that allows adjustment of the pump’s . stroke speed. Using the two in unison can allow additional adjustability or turndown capabilities over the range of the drive, depending on the pump’s stroking speed. For example, a pump operating at 75 strokes per minute

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  • The Pulsatron Series E-DC offers manual function ...

    2020-8-14 · a turn down ratio of 100:1. Our best value in a pump with this capacity and powered by 12 Volt DC. Four distinct models are available, having pressure capabilities to 150 PSIG (10 BAR) @ 6 GPD (0.25 lph), and flow capacities to 44 GPD (7.0 lph) @ 100 PSIG (7 BAR), with a turndown ratio of 100:1. Metering performance is reproducible to within ± 3%

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  • Dosing pump - Stepper motor metering pumps - EMEC

    2021-5-12 · PRISMA stepper motor-driven pump gives you the most accurate dosing, providing an outstanding 1:4800 turndown ratio offering the most homogeneous and precise distribution of the chemical dosed according to the required application.

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  • LMI P121-358SI Chemical Metering Pump -

    LMI P121-358SI Metering Pump, Diaphragm, Solenoid. 60 spm, Fluorofilm diaphragm, Ceramic balls, Polyprel o-ring, Polyethylene tubing, max flow 5.04 gpd, 1/4 in inlet size, 1/4 in outlet size, max viscosity 400 cps, max pressure 150 psi (10.3 bar), turndown ratio of …

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  • Peristaltic Pumps: A Simple Solution for Abrasive and ...

    2011-12-15 · a single peristaltic pump can cover. The “turndown ratio” or “flow range” of a peristaltic pump is unparalleled. A high quality perista pump is capable of over 2000:1 flow range (max flow to min flow) by simply controlling one parameter: the rotor speed. With the added versatility of putting different tube sizes into one

    Get Price
  • Plunger Metering Pump Meta - ProMinent

    2021-5-14 · The extremely high-performance Meta is a plunger metering pump with the option of adjusting the pump capacity in 0.2% increments. It offers a wide range of power end versions, such as three-phase or 1-phase AC motors, even for Exe and Exde areas with ATEX certification.

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  • XRD121-A44A1A2FN LMI Excel XR Series Chemical

    XRD121-A44A1A2FN. LMI XRD121-A44A1A2FN, Excel XR Series Chemical Metering Pump, 5.6 GPH, 134.4 GPD, 175 PSI, Polypropylene PVC, 110/120 Volt, Standard Liquid End

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