Flow Meters - Kobold

Flow meters are a piece of essential equipment for many industries, as they allow for accurately measuring fluid flow rates. At Centro, we carry a complete online selection of flow meters, including magnetic flow m...

Categories from Kobold (6)
Ultrasonic Flow Meters

Ultrasonic flow meters use cutting-edge technology to precisely gauge the velocity of gas coursing through pipes. These meters employ transducers strategically positioned on opposite sides of the pipe. One transducer emits ultrasonic waves across the pipe, while its counterpart catches these waves. By timing the waves' journey upstream and downstream, these meters can accurately determine gas velocity. This data, when combined with the pipe's cross-sectional area, facilitates the calculation of gas flow rate. Renowned for their non-intrusive nature and versatility, ultrasonic flow meters find applications in various fields, including natural gas distribution, compressed air systems, and HVAC installations. Their appeal lies in their remarkable accuracy, wide turndown ratios, and low maintenance requirements, making them a preferred choice for gas flow measurement across industries. For further assistance and expert advice on selecting the right ultrasonic flow meter for your application, contact the product experts at Centro. They'll be glad to assist you.

Magnetic Flow Meters

Magnetic flow meters are tools for measuring the flow of liquids in various industries. They work by using a magnetic field to determine the velocity of the fluid flowing through a pipe. One of the best things about these meters is their accuracy and reliability, especially when dealing with dirty or corrosive liquids. They're commonly used in water treatment plants, chemical processing, and even in food and beverage production because they have no moving parts and don't obstruct the flow, which means less maintenance and a longer lifespan. Browse our selection below or contact us to speak with a product expert.

Gas Flow Meters

Gas flow meters are devices used for measuring the flow rate of gases. They utilize different principles for measurement, including differential pressure, velocity, positive displacement, thermal sensing, and Coriolis effects. Differential pressure meters gauge the pressure decrease across a constriction, velocity meters gauge gas speed, positive displacement meters measure the flow rate by trapping and then releasing discrete volumes of gas, thermal meters detect heat transfer, and Coriolis meters measure the twisting of vibrating tubes. Each type has its advantages and limitations, with selection dependent on factors such as gas type, flow rate range, pressure, temperature, and required accuracy, for specific application needs. For further assistance and expert advice on selecting the right gas flow meter, the product experts at Centro will be glad to assist.

Roto Meters

Rotameters are variable area flow meters that provide simple, reliable measurement of liquid or gas flow by indicating rate through the vertical movement of a float within a tapered tube. Commonly used in chemical processing, water treatment, laboratory, and OEM systems, rotameters offer visual, real-time flow monitoring without external power. With options for glass, plastic, or metal tubes and compatibility with corrosive or high-purity media, rotameters are a cost-effective solution for accurate, low-maintenance flow control in industrial applications.

Turbine Flow Meters

Turbine flow meters are advanced instruments designed to measure fluid flow by utilizing the rotation of a turbine within the fluid stream. These meters are widely employed in aerospace, petrochemical, and water management industries to provide accurate and real-time data on flow rates. Turbine flow meters excel in applications where precision is crucial, offering high accuracy and reliability. They play a pivotal role in optimizing processes, monitoring consumption, and ensuring the efficient operation of various systems.

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The precision-engineered KOBOLD DPL All-Plastic Paddle Wheel Flow Sensor delivers reliable measurement of transparent liquids with flow rates up to 400 GPH, making it ideal for applications where chemical compatibility and cost-effectiveness are essential. Featuring a compact design that integrates seamlessly into space-constrained installations like the interior of larger systems, this versatile transmitter uses non-contact optoelectronic sensing to convert rotary paddle wheel motion into proportional frequency signals. KOBOLD USA With all wetted components constructed from synthetic materials including polypropylene housing, polysulfone vane mount, and sapphire axle/bearing, the DPL provides exceptional resistance to aggressive chemicals while maintaining measurement accuracy in harsh environments. Available with multiple output options including frequency signal or analog output, this flow sensor offers flexible integration capabilities for monitoring and control applications across industrial, commercial, and laboratory settings. Operating at pressures up to 145 PSI and temperatures to 160°F, the DPL combines American manufacturing quality with innovative design elements like sapphire-supported vanes that ensure high linearity and extended service life in critical fluid handling systems.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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"The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement."
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"The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement."
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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Kobold KAL-A - Thermal Flow Transmitter

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The sophisticated KOBOLD KAL-A Thermal Flow Transmitter employs advanced calorimetric technology with microprocessor-based drift stabilization to deliver reliable monitoring of water-based liquids with velocities from 0.2 to 6.6 ft/sec while providing consistent 4-20 mA output signals regardless of temperature fluctuations. Featuring an innovative single RTD element design that both heats the probe tip and measures temperature simultaneously, this intelligent instrument creates a continuous, protrusion-free sensor surface that prevents contamination buildup, enhances sensing stability, and significantly reduces system downtime associated with probe cleaning. Available in industrial (304 SS or 316-Ti SS with NPT connections) and sanitary models (316L SS with 3-A compliant Tri-Clamp® fittings), the KAL-A withstands extreme operating conditions up to 1450 PSIG pressure and CIP cleaning temperatures to 280°F while maintaining exceptional ±10% full scale linearity and ±1% repeatability. The user-friendly interface includes an 8-LED trend display for visual flow indication alongside adjustable zero (0-75% of range) and span (25-100% of range) settings, with optional PNP/NPN open collector switching outputs rated for 400mA that provide programmable alarm functionality. Operating with minimal pressure drop and complete insensitivity to dirt particles, this maintenance-free instrument delivers consistent performance across pipe sizes from 1/2" to 20" diameter without moving parts, making it ideal for critical applications in food processing, pharmaceutical manufacturing, water treatment, and other industries requiring sanitary or industrial flow monitoring.
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The KOBOLD KSK plastic flowmeter and switch delivers reliable flow measurement for liquids and gases in a corrosion-resistant package featuring polyamide or polysulfone construction that stands up to aggressive acids and alkaline solutions typically unsuitable for metal units. Operating on the variable-area principle with a PVDF float traveling within a clear conical measuring tube, this versatile instrument provides ±4% full scale accuracy across a wide measurement range from 0.006 GPM to 4.4 GPM for liquids or from 0.06 SCFM to 62 SCFM for air (with polysulfone models offering specialized calibration scales for pressures from 0 to 145 PSIG). The compact design can be equipped with either bistable reed contacts (N/O or N/C) or NPN transistor switches featuring LED status indication, providing reliable flow monitoring and alarm capabilities for critical process protection applications. With a maximum pressure rating of 145 PSIG and temperature capabilities up to 212°F (for polysulfone versions with brass or stainless steel fittings), these shock-proof instruments offer exceptional chemical compatibility while maintaining visual indication through their clear measuring tubes. Versatile connection options including PVC glue socket/NPT female fittings or brass/stainless steel NPT adapters in various sizes make the KSK series adaptable to numerous industrial applications requiring chemical resistance combined with accurate flow measurement and control.
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The KOBOLD KSK plastic flowmeter and switch delivers reliable flow measurement for liquids and gases in a corrosion-resistant package featuring polyamide or polysulfone construction that stands up to aggressive acids and alkaline solutions typically unsuitable for metal units. Operating on the variable-area principle with a PVDF float traveling within a clear conical measuring tube, this versatile instrument provides ±4% full scale accuracy across a wide measurement range from 0.006 GPM to 4.4 GPM for liquids or from 0.06 SCFM to 62 SCFM for air (with polysulfone models offering specialized calibration scales for pressures from 0 to 145 PSIG). The compact design can be equipped with either bistable reed contacts (N/O or N/C) or NPN transistor switches featuring LED status indication, providing reliable flow monitoring and alarm capabilities for critical process protection applications. With a maximum pressure rating of 145 PSIG and temperature capabilities up to 212°F (for polysulfone versions with brass or stainless steel fittings), these shock-proof instruments offer exceptional chemical compatibility while maintaining visual indication through their clear measuring tubes. Versatile connection options including PVC glue socket/NPT female fittings or brass/stainless steel NPT adapters in various sizes make the KSK series adaptable to numerous industrial applications requiring chemical resistance combined with accurate flow measurement and control.
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Kobold KSV - Micro Rotameter Flow Meter

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The KOBOLD KSV Economical Micro Flowmeter provides precise measurement for minimal liquid and gas flows with its versatile design featuring a polysulfone body and your choice of brass or stainless steel connections. Engineered for light industrial applications, this vertical-mount variable area flowmeter delivers consistent performance with ±6% full scale accuracy and exceptional ±1% repeatability in a compact, easy-to-read format. Available with flow ranges from 0.04 GPH to 20 GPH for liquids or 0.3 SCFH to 100 SCFH for gases, the KSV offers outstanding chemical resistance and can withstand sterilization temperatures up to 250°F. The optional integrated needle valve provides enhanced flow stability, particularly useful when measuring gas applications where fluctuations are common. With 1/8" NPT female connections and an 87 PSI maximum operating pressure, this economical instrument offers reliable metering performance while maintaining excellent resistance to acids and alkaline solutions.
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Kobold MIK - Compact Magneto-Inductive Flowmeter

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The KOBOLD MIK Compact Magneto-Inductive Flowmeter delivers precision electromagnetic flow measurement for conductive liquids with exceptional ±2% full scale accuracy across flow ranges from 0.18 GPH to 180 GPM. Operating on Faraday's Law of magnetic induction, this maintenance-free instrument features zero moving parts and robust all-plastic construction with multiple material combinations including PPS and PVDF housings paired with stainless steel, Hastelloy®, or Tantalum electrodes. The versatile design handles aggressive chemicals, acids, caustic solutions, and corrosive media at pressures up to 145 psi and temperatures from -4°F to 176°F, making it ideal for water treatment, chemical processing, pharmaceutical, food and beverage, and other demanding industrial applications where traditional metal flowmeters would deteriorate.
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The precision-engineered KOBOLD DPL All-Plastic Paddle Wheel Flow Sensor delivers reliable measurement of transparent liquids with flow rates up to 400 GPH, making it ideal for applications where chemical compatibility and cost-effectiveness are essential. Featuring a compact design that integrates seamlessly into space-constrained installations like the interior of larger systems, this versatile transmitter uses non-contact optoelectronic sensing to convert rotary paddle wheel motion into proportional frequency signals. KOBOLD USA With all wetted components constructed from synthetic materials including polypropylene housing, polysulfone vane mount, and sapphire axle/bearing, the DPL provides exceptional resistance to aggressive chemicals while maintaining measurement accuracy in harsh environments. Available with multiple output options including frequency signal or analog output, this flow sensor offers flexible integration capabilities for monitoring and control applications across industrial, commercial, and laboratory settings. Operating at pressures up to 145 PSI and temperatures to 160°F, the DPL combines American manufacturing quality with innovative design elements like sapphire-supported vanes that ensure high linearity and extended service life in critical fluid handling systems.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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"The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement."
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"The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement."
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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The DUK Compact Inline Ultrasonic Flow Meter combines American craftsmanship from Pittsburgh, PA with innovative U-Pace electronics, delivering exceptional performance with short lead times. This versatile instrument features integrated temperature measurement, IO-Link compatibility, bi-directional flow capabilities, and processes moderately viscous media up to 68 cSt. Ideal for non-conductive liquids where magnetic flow meters aren't suitable, the DUK operates without moving parts, ensuring long service life and minimal maintenance. Its inline design provides superior accuracy through direct liquid contact, particularly at low flow rates and in smaller pipe diameters. With an industry-leading 250:1 turndown ratio, it maintains consistent accuracy across widely fluctuating flow conditions. The DUK utilizes transit time difference technology with dual-function sensors and features user-friendly elements including two configurable outputs for switching, batching, and transmitting functions. The digital touch screen rotates in 90° increments for optimal viewing in any installation position, while the future-proof design allows for straightforward onsite electronics replacement.
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Kobold KAL-A - Thermal Flow Transmitter

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The sophisticated KOBOLD KAL-A Thermal Flow Transmitter employs advanced calorimetric technology with microprocessor-based drift stabilization to deliver reliable monitoring of water-based liquids with velocities from 0.2 to 6.6 ft/sec while providing consistent 4-20 mA output signals regardless of temperature fluctuations. Featuring an innovative single RTD element design that both heats the probe tip and measures temperature simultaneously, this intelligent instrument creates a continuous, protrusion-free sensor surface that prevents contamination buildup, enhances sensing stability, and significantly reduces system downtime associated with probe cleaning. Available in industrial (304 SS or 316-Ti SS with NPT connections) and sanitary models (316L SS with 3-A compliant Tri-Clamp® fittings), the KAL-A withstands extreme operating conditions up to 1450 PSIG pressure and CIP cleaning temperatures to 280°F while maintaining exceptional ±10% full scale linearity and ±1% repeatability. The user-friendly interface includes an 8-LED trend display for visual flow indication alongside adjustable zero (0-75% of range) and span (25-100% of range) settings, with optional PNP/NPN open collector switching outputs rated for 400mA that provide programmable alarm functionality. Operating with minimal pressure drop and complete insensitivity to dirt particles, this maintenance-free instrument delivers consistent performance across pipe sizes from 1/2" to 20" diameter without moving parts, making it ideal for critical applications in food processing, pharmaceutical manufacturing, water treatment, and other industries requiring sanitary or industrial flow monitoring.
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The KOBOLD KSK plastic flowmeter and switch delivers reliable flow measurement for liquids and gases in a corrosion-resistant package featuring polyamide or polysulfone construction that stands up to aggressive acids and alkaline solutions typically unsuitable for metal units. Operating on the variable-area principle with a PVDF float traveling within a clear conical measuring tube, this versatile instrument provides ±4% full scale accuracy across a wide measurement range from 0.006 GPM to 4.4 GPM for liquids or from 0.06 SCFM to 62 SCFM for air (with polysulfone models offering specialized calibration scales for pressures from 0 to 145 PSIG). The compact design can be equipped with either bistable reed contacts (N/O or N/C) or NPN transistor switches featuring LED status indication, providing reliable flow monitoring and alarm capabilities for critical process protection applications. With a maximum pressure rating of 145 PSIG and temperature capabilities up to 212°F (for polysulfone versions with brass or stainless steel fittings), these shock-proof instruments offer exceptional chemical compatibility while maintaining visual indication through their clear measuring tubes. Versatile connection options including PVC glue socket/NPT female fittings or brass/stainless steel NPT adapters in various sizes make the KSK series adaptable to numerous industrial applications requiring chemical resistance combined with accurate flow measurement and control.
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The KOBOLD KSK plastic flowmeter and switch delivers reliable flow measurement for liquids and gases in a corrosion-resistant package featuring polyamide or polysulfone construction that stands up to aggressive acids and alkaline solutions typically unsuitable for metal units. Operating on the variable-area principle with a PVDF float traveling within a clear conical measuring tube, this versatile instrument provides ±4% full scale accuracy across a wide measurement range from 0.006 GPM to 4.4 GPM for liquids or from 0.06 SCFM to 62 SCFM for air (with polysulfone models offering specialized calibration scales for pressures from 0 to 145 PSIG). The compact design can be equipped with either bistable reed contacts (N/O or N/C) or NPN transistor switches featuring LED status indication, providing reliable flow monitoring and alarm capabilities for critical process protection applications. With a maximum pressure rating of 145 PSIG and temperature capabilities up to 212°F (for polysulfone versions with brass or stainless steel fittings), these shock-proof instruments offer exceptional chemical compatibility while maintaining visual indication through their clear measuring tubes. Versatile connection options including PVC glue socket/NPT female fittings or brass/stainless steel NPT adapters in various sizes make the KSK series adaptable to numerous industrial applications requiring chemical resistance combined with accurate flow measurement and control.
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Kobold KSV - Micro Rotameter Flow Meter

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The KOBOLD KSV Economical Micro Flowmeter provides precise measurement for minimal liquid and gas flows with its versatile design featuring a polysulfone body and your choice of brass or stainless steel connections. Engineered for light industrial applications, this vertical-mount variable area flowmeter delivers consistent performance with ±6% full scale accuracy and exceptional ±1% repeatability in a compact, easy-to-read format. Available with flow ranges from 0.04 GPH to 20 GPH for liquids or 0.3 SCFH to 100 SCFH for gases, the KSV offers outstanding chemical resistance and can withstand sterilization temperatures up to 250°F. The optional integrated needle valve provides enhanced flow stability, particularly useful when measuring gas applications where fluctuations are common. With 1/8" NPT female connections and an 87 PSI maximum operating pressure, this economical instrument offers reliable metering performance while maintaining excellent resistance to acids and alkaline solutions.
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Kobold MIK - Compact Magneto-Inductive Flowmeter

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The KOBOLD MIK Compact Magneto-Inductive Flowmeter delivers precision electromagnetic flow measurement for conductive liquids with exceptional ±2% full scale accuracy across flow ranges from 0.18 GPH to 180 GPM. Operating on Faraday's Law of magnetic induction, this maintenance-free instrument features zero moving parts and robust all-plastic construction with multiple material combinations including PPS and PVDF housings paired with stainless steel, Hastelloy®, or Tantalum electrodes. The versatile design handles aggressive chemicals, acids, caustic solutions, and corrosive media at pressures up to 145 psi and temperatures from -4°F to 176°F, making it ideal for water treatment, chemical processing, pharmaceutical, food and beverage, and other demanding industrial applications where traditional metal flowmeters would deteriorate.
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