metering pump stroke control

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  • Metering Pumps - Electronic Stroke Control

    2017-8-30 · The Neptune Electric Stroke Control allows the capacity of any Neptune Series 500 or Series 600 'dia-PUMP' to be automatically controlled in response to a standard 4 -20 mA process signal. Also accepts 0 -5 VDC/0-10 VDC signal or digital pulse train inputs. One-piece controller- positioner mounts directly to the pump. No machining or any special

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  • Electronic Stroke Control | Neptune

    Metering Pump Options and Upgrades Electronic Stroke Control The Neptune Electric Stroke Control allows the capacity of any Neptune 500 Series, 600 Series, or 6000 Series Hydraulic Pump to be automatically controlled in response to a standard 4-20 mADC process signal.

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  • Stroke Control - an overview | ScienceDirect Topics

    Another fundamental design change on the passenger car high pressure pump is the introduction of the pre-stroke control valve (PCV) technology, which is known from the heavy duty “HP0” pump. This special delivery control acts on the high pressure side of the pump and avoids vacuum pressure levels. One of the reasons for change was the concern that the current inlet metering …

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  • Pump Performance | Control the flow with metering pumps ...

    2011-11-3 · Accuracy is a critical element of controlled-volume metering pumps and is achieved through capacity control and pump head arrangements. Stepper motors eliminate the need for stroke length control. Controlled-volume metering pumps can achieve discharge pressures to 50,000 psig and capacities from 10 milliliters per hour to 5,000 gallons per hour.

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  • Metering Pump - LMI Pumps

    2020-9-28 · The EXCEL XR metering pump features a variable speed drive allowing full control of the stroke profile for maximum control of the chemical going into your process. In addition, it also features a wide variety of control options that are easily configured using …

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  • Principles of Controlled-Volume Metering Pumps ...

    2015-5-20 · Figure 7.3.1c shows the rate of flow versus stroke-length setting for a controlled-volume metering pump at a given pressure and stroking speed. The curve is linear, and it is not necessarily proportional. The 50 percent stroke setting may not equal 50 percent flow, because the curve may not pass through zero on both axes simultaneously.

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  • Pump speed and stroke control | Automation & Control ...

    2008-8-8 · The only reason to change the pump stroke is if the pH controller runs out of range, e.g. if the controller output > 90 % increase the pump stroke. I like to have a metering pump running as fast as possible (high speed/low volume) otherwise the pH will swing too much with each stroke of the pump.

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  • Metering Pump Principles | Milton Roy

    Flow Adjustments – Pump flow rate is adjustable by varying stroke length, effective stroke length, or stroking speed. Most metering pumps are supplied with a micrometer screw adjustment similar to the one shown here. The micrometer can also be replaced by an electronic or pneumatic actuator to adjust pump flow rate in response to process signal.

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  • PD Pump Fundamentals, Design and Applications (Part Five ...

    2012-2-21 · Advanced electric motors, taken from the robotic and computer industry (i.e., stepper motors), have recently eliminated the need for stroke length control, simplifying setup and operation. In the original metering pump, capacity was changed by adjusting the stroke length of the piston, which was located on the outside of the pump.

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  • Pulsafeeder Diaphragm Metering Pumps

    2014-1-6 · Each type of metering pump, for example PulsaSeries, PULSAR, or SHADOW models, will have a stated accuracy rating. This rating serves as a basis for predicting pump performance. However, the accuracy of any pump will be affected by the accuracy of the related equipment, for example an electronic stroke length controller, or a variable speed drive.

    Get Price
  • Stroke Detection for Metering and Dispensing Valves | DOPAG

    Stroke detection for the monitoring of metering and dispensing valve activity The stroke detection device monitors the correct activity of various valve types. Detecting the upstroke movement of the dispensing needle or the metering piston, it sends signals to …

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  • Stroke Control - an overview | ScienceDirect Topics

    However, it is still common to control a piston diaphragm pump’s motor speed with a 4–20 mA signal from a flowmeter in the stream to be dosed.This is known as flow pacing, and when used in conjunction with stroke length control as described in the next section, it can give very accurate (±0.1 pH units) pH control.. On the other hand, some engineers use simple speed control …

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  • Metering Pump - LMI Pumps

    2020-9-28 · The EXCEL XR metering pump features a variable speed drive allowing full control of the stroke profile for maximum control of the chemical going into your process. In addition, it also features a wide variety of control options that are easily configured using the intuitive user interface. Whatever your application, the EXCEL XRmetering pump

    Get Price
  • Pulsatron Pump LMB4TA-KTC1-XXX Chemical Metering ...

    Manually adjustable stroke length control, adjustable stroke frequency control. Pulsatron Series MP Chemical Metering Pump by Pulsafeeder • Automatic Control, Fully scalable 4-20mA current signal that can also be calibrated to precisely match the current signal reading of the sending device.

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  • Pump speed and stroke control | Automation & Control ...

    2008-8-8 · As for the pump I would operate it at variable speed fixed stroke. The stroke set at just enough so the pump is able to control the pH at maximum flow. The only reason to change the pump stroke is if the pH controller runs out of range, e.g. if the controller output > 90 % increase the pump stroke.

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  • Pulsatron Pump LPG4SA-VTC1-XXX Chemical Metering ...

    Dual Manual Control: Stroke frequency and stroke length are manually adjustable. Pulsatron Series E Plus Chemical Metering Pump by Pulsafeeder • Manual Control by on-line adjustable stroke rate and stroke length. • Highly Reliable timing circuit. • Circuit Protection against voltage and current upsets. • Panel Mounted Fuse.

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  • Pneumatic Metering Pump | Ecolab Engineering GmbH

    The delivery performance can be controlled exactly by stroke frequency and a lock-type stroke adjustment. The pump can be synchronized manually for start-up or venting during an upcoming air pressure. A continuous metering demands a synchronized control by an external or internal 3/2-port directional control valve.

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  • EMP IV | Ecolab Engineering GmbH

    External metering stop; Single stroke control; The ELADOS® EMP IV series of metering pumps is based on the building block principle. Devices of this series comprise the drive unit, the gear, the metering pump head and the electronics. Different electronic control variants guarantee that the pump may be adapted to any processing sequence for ...

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  • Selecting a metering pump | Automation & Control ...

    2010-3-21 · Its common to use a metering pump for pH control. The pulse rate is controlled by an analog signal. The stroke length is usually set locally The stroke length sets the quantity of product per pulse so you set that to give the maximum requirement at maximum frequency. i.e. if your controller is wound out to 100% and you can't get enough product to correct the pH you would increase the stroke …

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  • Metering Monitor for Low-Pressure Metering Pumps -

    2021-5-14 · Suitable for metering pumps of the product ranges gamma X and gamma XL in material versions PP, NP, PV and TT. Important: It is essential that you observe the minimum values for the stroke length. The design of the pressure stroke must be set to “fast”. Suitable for the gamma X product range in material designs PP, PC, NP and TT.

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  • Metering Pumps Selection Guide | Engineering360

    2021-5-9 · Pump flow rate is adjustable by varying stroke length, effective stroke length or stroking speed. Some metering pumps are supplied with a micrometer screw adjustment. An electronic or pneumatic actuator may be used to replace the micrometer if the pump flow rate needs to be altered in response to a process signal.

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  • Stroke Detection for Metering and Dispensing Valves | DOPAG

    Stroke detection for the monitoring of metering and dispensing valve activity The stroke detection device monitors the correct activity of various valve types. Detecting the upstroke movement of the dispensing needle or the metering piston, it sends signals to …

    Get Price
  • How to Adjust the Flow Rate of Metering Pump

    2021-1-12 · The stroke of the metering pump is adjusted manually when it is stopped. ②Manual adjustment during operation. In the pump operation to change the axial displacement, in order to indirectly change the crank radius, to achieve the purpose of adjusting the stroke length. ... There are two common types of pneumatic control and electric control ...

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  • Pulsatron Pump LMB4TA-KTC1-XXX Chemical Metering ...

    Manually adjustable stroke length control, adjustable stroke frequency control. Pulsatron Series MP Chemical Metering Pump by Pulsafeeder • Automatic Control, Fully scalable 4-20mA current signal that can also be calibrated to precisely match the current signal reading of the sending device.

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  • Diaphragm Metering Pump ProMinent EXtronic

    2021-5-12 · The ATEX-compliant diaphragm metering pump EXtronic® (EXBb) is tested and approved in line with EN 60079/-1 for the ignition type 'compression-resistant enclosures' and thus offers the maximum level of protection. The short-stroke solenoid and the complete pump control are integrated in the pump housing so that, together with the explosion-proof

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  • Pneumatic Metering Pump | Ecolab Engineering GmbH

    The delivery performance can be controlled exactly by stroke frequency and a lock-type stroke adjustment. The pump can be synchronized manually for start-up or venting during an upcoming air pressure. A continuous metering demands a synchronized control by an external or internal 3/2-port directional control valve.

    Get Price
  • Mechanical Diaphragm Metering Pump

    2015-3-24 · Control Options Metering Pump Controller (Models DC 2-4 only) • Automatically controls and displays flow with a 4-20 mA input, handheld keypad, and manual stroke control • Controls Pulsafeeder metering pumps up to 1000:1 turn down ratio • The IP56 (NEMA 4X) Handheld user inter face is attached to the pump with 4.5 feet (1.5 meters ) of cable

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  • Solenoid Metering Pumps - Quantrol

    SEKO Metering Pumps Solenoid Metering Pumps Tekna Series Pump Features • 4 Models cover an output range of 0.1 to 29 GPH with pressure ratings up to 290 PSI. • Turndown ratio 100:1 using the manual stroke rate control. • Choice of Analog or Digital controls. • Installation flexibility with both wall mount and surface mount brackets ...

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  • Selecting a metering pump | Automation & Control ...

    2010-3-21 · Its common to use a metering pump for pH control. The pulse rate is controlled by an analog signal. The stroke length is usually set locally The stroke length sets the quantity of product per pulse so you set that to give the maximum requirement at maximum frequency. i.e. if your controller is wound out to 100% and you can't get enough product to correct the pH you would increase the stroke …

    Get Price
  • Dosing Pump - an overview | ScienceDirect Topics

    However, it is still common to control a piston diaphragm pump’s motor speed with a 4–20 mA signal from a flowmeter in the stream to be dosed.This is known as flow pacing, and when used in conjunction with stroke length control as described in the next section, it can give very accurate (±0.1 pH units) pH control.. However, some engineers use simple speed control proportional to …

    Get Price
  • Hydra-Cell Metering Pumps

    2021-5-14 · Taking advantage of the most current technologies, Hydra-Cell P Series metering pumps achieve superior levels of accuracy, repeatability and linearity, while delivering precise, constant flow.This revolution in metering employs the latest available means of electronic flow control to replace antiquated, inaccurate stroke adjusters.

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  • Electric Pump Stroke Control - Water Online

    Neptune Chemical Pump Co., Inc.the pump, the electric stroke control is a one-piece, self-contained electric positioner designed to change pump stroke length. This system features a direct or indirect response to changing signals, manual override in event of instrument signal or power loss and an adjustable ratio signal to stroke1:2 or 2:1.

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  • Pulsatron Pump LMB4TA-KTC1-XXX Chemical Metering ...

    Manually adjustable stroke length control, adjustable stroke frequency control. Pulsatron Series MP Chemical Metering Pump by Pulsafeeder • Automatic Control, Fully scalable 4-20mA current signal that can also be calibrated to precisely match the current signal reading of the sending device.

    Get Price
  • Neptune - Metering Pumps - Peristaltic Pumps - Hose

    Neptune Hydraulic Diaphragm metering pumps are typically used for chemical metering in process and agricultural industries. Chemical metering pumps are available for high and low pressure applications with manual and electronic stroke control. Please click on the Metering Pump button to view the full line of our metering pump products ...

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  • Pneumatic Metering Pump | Ecolab Engineering GmbH

    The delivery performance can be controlled exactly by stroke frequency and a lock-type stroke adjustment. The pump can be synchronized manually for start-up or venting during an upcoming air pressure. A continuous metering demands a synchronized control by an external or internal 3/2-port directional control valve.

    Get Price
  • Metering Pump - Greenergy City Services

    Analogue or digital solenoid driven, mechanical, hydraulic and or plunger acutaed risen as a technology of first choice for the injection of chemicals in processing and agricultural applications. Reliable and high quality products for water & wastewater industry, featured with constant manually flow rate, proportional analog 4-20mA & proportional pulse […]

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  • LEWA Micro- metering pumps

    2019-2-22 · Maximum metering accuracy (at constant basic conditions: +/- 1%) Extremely wide control range up to 1:1000 for maximum metering fl exibility Unique, high-performance stroke solenoids tried and tested for more than 30 years Simple operation Absolutely odor-tight and free of leaks Absolutely dry-run safe for maximum process safety

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  • Electronic Metering Pumps

    2018-4-30 · The pump stroke rate is controlled by an internal circuit and is changed by turning the rate knob. The mechanical stroke length is controlled by the stroke length knob. Some models do not allow stroke rate control and do not have the stroke rate knob. 3.2 Materials Of Construction ... The metering pump should be located in an area that allows ...

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  • Mechanical Diaphragm Metering Pump

    2015-3-24 · Control Options Metering Pump Controller (Models DC 2-4 only) • Automatically controls and displays flow with a 4-20 mA input, handheld keypad, and manual stroke control • Controls Pulsafeeder metering pumps up to 1000:1 turn down ratio • The IP56 (NEMA 4X) Handheld user inter face is attached to the pump with 4.5 feet (1.5 meters ) of cable

    Get Price
  • Automatically Changing a Chemical Metering Pump’s

    2016-9-19 · This blog will go over the simplest ways to change the flow rate on a Madden metering pump. To start, all Madden chemical metering pumps are designed with a manual stroke length adjustment built right into the pump. This allows for a very linear turndown of the pump’s output or flowrate and it is quite simple.

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  • Metering Pump - LMI Pumps

    2020-9-28 · The EXCEL XR metering pump features a variable speed drive allowing full control of the stroke profile for maximum control of the chemical going into your process. In addition, it also features a wide variety of control options that are easily configured using the intuitive user interface. Whatever your application, the EXCEL XRmetering pump

    Get Price
  • 307205D Metering Pump Adjust-A-Stroke, Instructions-Parts ...

    2020-12-14 · Adjusting the Pump Stroke Variations in dispensing requirements control the setting of the Adjust-A-Stroke. You will have to make calculations to determine the start setting for single or multiple shot dispensing. Before adjusting the pump stroke, start the pump and measure its output per cycle at 100% Adjust-A-Stroke setting.

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  • Electronic Metering Pumps

    2018-4-30 · The pump stroke rate is controlled by an internal circuit and is changed by turning the rate knob. The mechanical stroke length is controlled by the stroke length knob. Some models do not allow stroke rate control and do not have the stroke rate knob. 3.2 Materials Of Construction ... The metering pump should be located in an area that allows ...

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  • Pulsafeeder Diaphragm Metering Pumps

    2014-1-6 · Each type of metering pump, for example PulsaSeries, PULSAR, or SHADOW models, will have a stated accuracy rating. This rating serves as a basis for predicting pump performance. However, the accuracy of any pump will be affected by the accuracy of the related equipment, for example an electronic stroke length controller, or a variable speed drive.

    Get Price
  • Digital Electric Polymer Metering Pump - Metering Dosing ...

    2021-3-3 · Adjustment Options Manual Adjustment:wethwer the pump running or stopped ·Minimum adjustment scale is 1% Electric Stroke Controlller:external control signal adjust stroke length ·Power Supply:220V-50Hz,1 phase ·Input Signal:4-20mA ·Output Signal:4-20mA/1-5V feedback signal.

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  • IWAKI Electoromagnetic Metering Pumps EHN series

    2017-7-4 · EHN Series is the latest electromagnet drive & diaphragm type metering pump. Pump head and driving mechanism employ those of experienced EH-R Series pumps while control unit is newly developed. Multi-voltage from 100 to 240V and digitized EHN Series pump is easy to operate in a variety of chemical feeding application.

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  • Metering Pump - Greenergy City Services

    Analogue or digital solenoid driven, mechanical, hydraulic and or plunger acutaed risen as a technology of first choice for the injection of chemicals in processing and agricultural applications. Reliable and high quality products for water & wastewater industry, featured with constant manually flow rate, proportional analog 4-20mA & proportional pulse […]

    Get Price
  • Instruction Manual - LMI Chemical Metering Pumps

    2016-2-25 · minute and enables priming of the pump in either Internal or External control modes. The priming function overrides the need for an external signal to cause the pump to stroke while in the External mode. Press and hold the (Start/Stop) key START STOP for three (3) seconds. The pump will start running at a speed of 60 SPM. If

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  • NOVADOS H3 Metering Pump - SPX FLOW

    Variable stroke length for each pump allows independent flow rate adjustment of each pump component; Variable speed drive allows flow rate variations while maintaining; Automation allows higher production efficiency to be achieved; Existing installations can be altered or expanded with extra pumps or automatic control

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  • Diaphragm Metering Pumps - ProMinent

    2021-5-12 · First enter the pump capacity and back pressure. The Pump Guide will then show you all the metering pumps that match your criteria. You can choose between list view and detail view. The database contains all solenoid-driven metering pumps, motor-driven metering pumps, process metering pumps and peristaltic pumps from ProMinent.

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