Measurement Instrument

Product Details:

Dharvi Instruments Pvt Ltd. offers a reliable and cost-effective range of Acrylic Rotameters, a type of variable area flow meter designed for accurate measurement of liquid and gas flow rates at low to medium pressures. Constructed from a single, durable block of high-grade acrylic, these rotameters provide a clear and unobstructed view of the process media, allowing for easy visual verification of the flow rate.

Our Acrylic Rotameters are known for their simplicity, durability, and excellent chemical resistance, making them a popular choice for a wide variety of industrial, laboratory, and OEM applications. The tapered body houses a precision-machined float that rises in direct proportion to the flow rate, which can be read against a scale engraved on the meter's body. They require no external power, offering a straightforward and economical solution for flow measurement.

Key Features:

• High-Grade Acrylic Body: Made from a single block of high-strength, transparent acrylic, offering excellent visibility and resistance to common chemicals.

•  Direct Visual Readout: Provides an instantaneous and clear indication of the flow rate with a scale directly engraved on the meter body.

   

• Cost-Effective: An economical solution for applications that do not require high pressure or temperature ratings.

• Easy Installation: Lightweight and designed for simple, in-line mounting with standard threaded or flanged connections.

• Corrosion Resistance: The acrylic body and the float material (SS316, PTFE) are selected for their resistance to a wide range of corrosive fluids.

• Accuracy & Repeatability: Engineered to provide reliable and repeatable flow measurements.

   

•  Versatile Application: Suitable for a wide range of liquids and gases, including water, air, nitrogen, etc.

Technical Specifications :

•  Measuring Principle: Variable Area (Rotameter)

   

• Body Material: High-Quality Acrylic

• Float Material: SS316, PTFE (depending on application)

• Guide Rod: SS316

• End Connections: Threaded (BSP, NPT), Flanged (customizable)

• Size Range: 1/2" to 4" (customizable)

•  Flow Range: Available in various ranges for water (LPH, LPM) and air (NM3/hr)

   

• Accuracy:  ±2% of Full Scale

   

• Operating Pressure: Up to 10 Bar (150 PSI)

• Operating Temperature: Up to  60 ∘C

• Scales: Single or dual scales for different fluid types

Applications:

• Water treatment and purification systems

   

• Laboratory and research applications

• Gas chromatography and analysis

• Industrial process cooling systems

• Chemical dosing and mixing

• OEM equipment and machinery

• Air sparging and aeration systems

Product Details:

Dharvi Instruments Pvt Ltd. presents a robust and reliable range of Glass Tube Rotameters, a classic and highly effective solution for the instantaneous measurement of liquid and gas flow rates. Our rotameters are engineered with a precision-tapered glass tube and a free-moving float, providing a direct visual indication of the flow rate. This simple yet effective design makes them an indispensable tool for a wide array of applications in laboratories and industries where visual flow monitoring is critical.

These rotameters are known for their exceptional accuracy, repeatability, and chemical resistance. The float, which is precisely weighted for the specific fluid, rises in direct proportion to the flow rate, and the reading is taken from the scale etched directly on the glass tube. With its sturdy construction and simple principle of operation, our Glass Tube Rotameters provide a cost-effective and dependable solution for your flow measurement needs, requiring no external power.

Key Features:

• High-Accuracy Borosilicate Glass Tube: Made from high-quality borosilicate glass, which offers excellent clarity, superior thermal shock resistance, and chemical durability.

•  Direct Visual Reading: Provides an immediate and easy-to-read indication of the flow rate, making it perfect for quick checks and continuous monitoring.

   

• Corrosion Resistance: The glass tube and float materials (SS316, PTFE) are selected for their resistance to a wide range of corrosive and non-corrosive fluids.

• Variety of Scales: Available with scales calibrated for various units (LPH, LPM for liquids and NM3/hr for gases) and specific gravities.

• No External Power Required: Operates on the principle of fluid dynamics, making it a passive and self-sufficient instrument.

•  Easy Installation: Designed for simple in-line installation with a variety of end connections.

   

• Cost-Effective & Reliable: A low-maintenance and economical solution for flow measurement in non-high-pressure applications.

• Protection Shield: Enclosed in a sturdy metal frame with a transparent shield to protect the glass tube from external damage.

Technical Specifications :

•  Measuring Principle: Variable Area (Rotameter)

• Tube Material: Borosilicate Glass

• Float Material: SS316, PTFE, or Agate (depending on application)

• Body/Frame: MS Powder Coated, SS304, or SS316

• End Connections: Threaded (BSP, NPT), Flanged (ANSI, DIN)

• Size Range: 1/4" to 2"

• Flow Range: Available in various flow ranges for water (LPH, LPM) and air (NM3/hr)

• Accuracy:  ±2% of Full Scale

• Operating Pressure: Up to 15 Bar (225 PSI)

• Operating Temperature: Up to  120 ∘C

• Gaskets: Neoprene, Viton, PTFE

Applications:

• Industrial process control and monitoring

• Chemical and pharmaceutical plants

• Laboratory applications and research

• Water and wastewater treatment

• Gas analysis and sampling systems

• Dosing and blending applications

• OEM equipment and machinery

Additional Information:

• Production Capacity: 10
• Delivery Time: 1 week

Product Details:

Dharvi Instruments Pvt. Ltd. offers a high-performance range of Acrylic Body Rotameters, designed for accurate measurement of liquid and gas flow rates in pipelines. These rotameters are widely used across industries for their reliability, durability, and ease of installation. The clear, transparent acrylic body provides excellent visibility of the float position, enabling quick and direct flow reading without external power or instrumentation.

Our Acrylic Body Rotameters are lightweight, corrosion-resistant, and suitable for a wide range of process fluids. Precision machining and careful calibration ensure consistent accuracy and long-term performance in both laboratory and industrial applications.

• Clear Visibility: Transparent acrylic body provides direct and easy reading of flow rate.

• Accurate Measurement: Calibrated individually for precise flow indication of liquids and gases.

• Compact & Lightweight Design: Ideal for panel mounting and limited-space installations.

• Corrosion Resistant: Suitable for use with various chemicals and process fluids.

• Leak-Proof Construction: Equipped with high-quality seals and O-rings for reliable operation.

• End Connection Options: Threaded, flanged, or hose connections available for flexible integration.

• Custom Scales: Flow scales can be provided in LPH, LPM, Nm³/hr, or SCFM as per customer requirement.

• Low Maintenance: Simple, sturdy design ensures minimal servicing and long operating life.

• Body Material: Solid Acrylic Block (Transparent)

• Float Material: Stainless Steel, PTFE, Glass, or PVC (depending on media)

• End Connection: Threaded (BSP/NPT), Flanged, or Hose Nipples

• Size Range: 15 NB to 100 NB (½" to 4")

• Flow Range: 2.5 LPH to 40,000 LPH (for liquids), 0.1 Nm³/hr to 400 Nm³/hr (for gases)

• Operating Pressure: Up to 10 kg/cm²

• Operating Temperature: Up to 60°C (for acrylic models)

• Accuracy: ±2% of Full Scale (standard)

• Scale: Direct reading, engraved or printed on the body

• Mounting: Vertical, with flow from bottom to top

• Water and Wastewater Treatment Plants

• Chemical and Petrochemical Industries

• Pharmaceuticals and Biotechnology

• Food and Beverage Processing

• HVAC and Cooling Systems

• Laboratory and Pilot Plants

• Gas Distribution Lines

Product Details:

Dharvi Instruments Pvt Ltd. presents a robust and reliable range of Glass Tube Rotameters, a classic and highly effective solution for the instantaneous measurement of liquid and gas flow rates. Our rotameters are engineered with a precision-tapered glass tube and a free-moving float, providing a direct visual indication of the flow rate. This simple yet effective design makes them an indispensable tool for a wide array of applications in laboratories and industries where visual flow monitoring is critical.

These rotameters are known for their exceptional accuracy, repeatability, and chemical resistance. The float, which is precisely weighted for the specific fluid, rises in direct proportion to the flow rate, and the reading is taken from the scale etched directly on the glass tube. With its sturdy construction and simple principle of operation, our Glass Tube Rotameters provide a cost-effective and dependable solution for your flow measurement needs, requiring no external power.

Key Features:

• High-Accuracy Borosilicate Glass Tube: Made from high-quality borosilicate glass, which offers excellent clarity, superior thermal shock resistance, and chemical durability.

•  Direct Visual Reading: Provides an immediate and easy-to-read indication of the flow rate, making it perfect for quick checks and continuous monitoring.

   

• Corrosion Resistance: The glass tube and float materials (SS316, PTFE) are selected for their resistance to a wide range of corrosive and non-corrosive fluids.

• Variety of Scales: Available with scales calibrated for various units (LPH, LPM for liquids and NM3/hr for gases) and specific gravities.

• No External Power Required: Operates on the principle of fluid dynamics, making it a passive and self-sufficient instrument.

•  Easy Installation: Designed for simple in-line installation with a variety of end connections.

   

• Cost-Effective & Reliable: A low-maintenance and economical solution for flow measurement in non-high-pressure applications.

• Protection Shield: Enclosed in a sturdy metal frame with a transparent shield to protect the glass tube from external damage.

Technical Specifications :

•  Measuring Principle: Variable Area (Rotameter)

• Tube Material: Borosilicate Glass

• Float Material: SS316, PTFE, or Agate (depending on application)

• Body/Frame: MS Powder Coated, SS304, or SS316

• End Connections: Threaded (BSP, NPT), Flanged (ANSI, DIN)

• Size Range: 1/4" to 2"

• Flow Range: Available in various flow ranges for water (LPH, LPM) and air (NM3/hr)

• Accuracy:  ±2% of Full Scale

• Operating Pressure: Up to 15 Bar (225 PSI)

• Operating Temperature: Up to  120 ∘C

• Gaskets: Neoprene, Viton, PTFE

Applications:

• Industrial process control and monitoring

• Chemical and pharmaceutical plants

• Laboratory applications and research

• Water and wastewater treatment

• Gas analysis and sampling systems

• Dosing and blending applications

• OEM equipment and machinery

Product Details:

Dharvi Instruments Pvt Ltd. offers a state-of-the-art range of Electromagnetic Flow Meters, commonly known as Mag Meters, designed for highly accurate and reliable measurement of conductive liquids. Our Mag Meters operate on Faraday's Law of Electromagnetic Induction, a principle that ensures measurement is independent of the liquid's density, viscosity, and temperature. This makes them the ideal solution for measuring a wide range of fluids, including water, wastewater, slurries, acids, and chemicals.

Our Electromagnetic Flow Meters are engineered to provide exceptional performance in demanding industrial environments. With no moving parts, they offer a maintenance-free solution, reducing downtime and operational costs. The meter's design minimizes pressure drop, ensuring an efficient and unobstructed flow path, making it perfect for applications where energy consumption is a critical factor.

Key Features:

• High Accuracy: Provides superior measurement accuracy, typically ±0.5% of the reading, ensuring precise and reliable data for process control and billing.

• No Moving Parts: The absence of any mechanical components eliminates wear and tear, providing a long service life and a virtually maintenance-free operation.

• Low Pressure Drop: The open-tube design does not obstruct the flow, resulting in negligible pressure loss and reduced pumping costs.

• Bidirectional Measurement: Capable of measuring flow in both forward and reverse directions, a crucial feature for many industrial applications.

• Wide Range of Applications: Ideal for measuring the flow of conductive liquids, slurries, pastes, and corrosive chemicals.

• Robust Construction: Constructed with a durable liner (PTFE, Neoprene, PFA) and high-quality housing materials (Carbon Steel, SS304, SS316) to withstand harsh conditions.

• Variety of Outputs: Available with standard outputs like 4-20mA, Pulse, and communication protocols such as RS485 (Modbus) for seamless integration into SCADA and DCS systems.

• Digital Display: Features a bright, user-friendly digital display for local indication of flow rate and totalized flow.

Technical Specifications :

• Measuring Principle: Faraday's Law of Electromagnetic Induction

• Application Media: Conductive Liquids (Water, Wastewater, Acids, etc.) with a minimum conductivity of 5 μS/cm

• Line Size: DN15 (1/2") to DN600 (24")

• Accuracy: ±0.5% of Actual Flow Rate

• Body Material: Carbon Steel (CS), Stainless Steel (SS304, SS316), PP.

• Liner Material: PTFE, Rubber,

• Electrode Material: SS316L, Hastelloy-C, Titanium

• End Connection: Flanged (ANSI, DIN), Threaded

• Operating Pressure: Up to 16 Bar (higher pressure ratings available)

• Operating Temperature: Up to 150∘C (depending on liner material)

• Output: 4-20mA, Pulse, RS485 (Modbus)

• Power Supply: 230 V AC / 24 V DC

• Ingress Protection: IP65 / IP67 (Sensor), IP65 (Converter)

Applications:

• Water and Wastewater Treatment Plants

• Chemical and Pharmaceutical Industries

• Food and Beverage Processing

• Pulp and Paper Mills

• Mining and Metal Processing

• Utilities and Irrigation Systems

• Slurry and Abrasive Fluid Measurement

Product Details:

Dharvi Instruments Pvt. Ltd. offers a high-performance range of Acrylic Body Rotameters, designed for accurate measurement of liquid and gas flow rates in pipelines. These rotameters are widely used across industries for their reliability, durability, and ease of installation. The clear, transparent acrylic body provides excellent visibility of the float position, enabling quick and direct flow reading without external power or instrumentation.

Our Acrylic Body Rotameters are lightweight, corrosion-resistant, and suitable for a wide range of process fluids. Precision machining and careful calibration ensure consistent accuracy and long-term performance in both laboratory and industrial applications.

• Clear Visibility: Transparent acrylic body provides direct and easy reading of flow rate.

• Accurate Measurement: Calibrated individually for precise flow indication of liquids and gases.

• Compact & Lightweight Design: Ideal for panel mounting and limited-space installations.

• Corrosion Resistant: Suitable for use with various chemicals and process fluids.

• Leak-Proof Construction: Equipped with high-quality seals and O-rings for reliable operation.

• End Connection Options: Threaded, flanged, or hose connections available for flexible integration.

• Custom Scales: Flow scales can be provided in LPH, LPM, Nm³/hr, or SCFM as per customer requirement.

• Low Maintenance: Simple, sturdy design ensures minimal servicing and long operating life.

• Body Material: Solid Acrylic Block (Transparent)

• Float Material: Stainless Steel, PTFE, Glass, or PVC (depending on media)

• End Connection: Threaded (BSP/NPT), Flanged, or Hose Nipples

• Size Range: 15 NB to 100 NB (½" to 4")

• Flow Range: 2.5 LPH to 40,000 LPH (for liquids), 0.1 Nm³/hr to 400 Nm³/hr (for gases)

• Operating Pressure: Up to 10 kg/cm²

• Operating Temperature: Up to 60°C (for acrylic models)

• Accuracy: ±2% of Full Scale (standard)

• Scale: Direct reading, engraved or printed on the body

• Mounting: Vertical, with flow from bottom to top

• Water and Wastewater Treatment Plants

• Chemical and Petrochemical Industries

• Pharmaceuticals and Biotechnology

• Food and Beverage Processing

• HVAC and Cooling Systems

• Laboratory and Pilot Plants

• Gas Distribution Lines

Product Details:

Dharvi Instruments Pvt Ltd. presents a robust and reliable range of Glass Tube Rotameters, a classic and highly effective solution for the instantaneous measurement of liquid and gas flow rates. Our rotameters are engineered with a precision-tapered glass tube and a free-moving float, providing a direct visual indication of the flow rate. This simple yet effective design makes them an indispensable tool for a wide array of applications in laboratories and industries where visual flow monitoring is critical.

These rotameters are known for their exceptional accuracy, repeatability, and chemical resistance. The float, which is precisely weighted for the specific fluid, rises in direct proportion to the flow rate, and the reading is taken from the scale etched directly on the glass tube. With its sturdy construction and simple principle of operation, our Glass Tube Rotameters provide a cost-effective and dependable solution for your flow measurement needs, requiring no external power.

Key Features:

• High-Accuracy Borosilicate Glass Tube: Made from high-quality borosilicate glass, which offers excellent clarity, superior thermal shock resistance, and chemical durability.

•  Direct Visual Reading: Provides an immediate and easy-to-read indication of the flow rate, making it perfect for quick checks and continuous monitoring.

   

• Corrosion Resistance: The glass tube and float materials (SS316, PTFE) are selected for their resistance to a wide range of corrosive and non-corrosive fluids.

• Variety of Scales: Available with scales calibrated for various units (LPH, LPM for liquids and NM3/hr for gases) and specific gravities.

• No External Power Required: Operates on the principle of fluid dynamics, making it a passive and self-sufficient instrument.

•  Easy Installation: Designed for simple in-line installation with a variety of end connections.

   

• Cost-Effective & Reliable: A low-maintenance and economical solution for flow measurement in non-high-pressure applications.

• Protection Shield: Enclosed in a sturdy metal frame with a transparent shield to protect the glass tube from external damage.

Technical Specifications :

•  Measuring Principle: Variable Area (Rotameter)

• Tube Material: Borosilicate Glass

• Float Material: SS316, PTFE, or Agate (depending on application)

• Body/Frame: MS Powder Coated, SS304, or SS316

• End Connections: Threaded (BSP, NPT), Flanged (ANSI, DIN)

• Size Range: 1/4" to 2"

• Flow Range: Available in various flow ranges for water (LPH, LPM) and air (NM3/hr)

• Accuracy:  ±2% of Full Scale

• Operating Pressure: Up to 15 Bar (225 PSI)

• Operating Temperature: Up to  120 ∘C

• Gaskets: Neoprene, Viton, PTFE

Applications:

• Industrial process control and monitoring

• Chemical and pharmaceutical plants

• Laboratory applications and research

• Water and wastewater treatment

• Gas analysis and sampling systems

• Dosing and blending applications

• OEM equipment and machinery

Product Details:

Dharvi Instruments Pvt Ltd. presents a robust and reliable range of Glass Tube Rotameters, a classic and highly effective solution for the instantaneous measurement of liquid and gas flow rates. Our rotameters are engineered with a precision-tapered glass tube and a free-moving float, providing a direct visual indication of the flow rate. This simple yet effective design makes them an indispensable tool for a wide array of applications in laboratories and industries where visual flow monitoring is critical.

These rotameters are known for their exceptional accuracy, repeatability, and chemical resistance. The float, which is precisely weighted for the specific fluid, rises in direct proportion to the flow rate, and the reading is taken from the scale etched directly on the glass tube. With its sturdy construction and simple principle of operation, our Glass Tube Rotameters provide a cost-effective and dependable solution for your flow measurement needs, requiring no external power.

Key Features:

• High-Accuracy Borosilicate Glass Tube: Made from high-quality borosilicate glass, which offers excellent clarity, superior thermal shock resistance, and chemical durability.

•  Direct Visual Reading: Provides an immediate and easy-to-read indication of the flow rate, making it perfect for quick checks and continuous monitoring.

   

• Corrosion Resistance: The glass tube and float materials (SS316, PTFE) are selected for their resistance to a wide range of corrosive and non-corrosive fluids.

• Variety of Scales: Available with scales calibrated for various units (LPH, LPM for liquids and NM3/hr for gases) and specific gravities.

• No External Power Required: Operates on the principle of fluid dynamics, making it a passive and self-sufficient instrument.

•  Easy Installation: Designed for simple in-line installation with a variety of end connections.

   

• Cost-Effective & Reliable: A low-maintenance and economical solution for flow measurement in non-high-pressure applications.

• Protection Shield: Enclosed in a sturdy metal frame with a transparent shield to protect the glass tube from external damage.

Technical Specifications :

•  Measuring Principle: Variable Area (Rotameter)

• Tube Material: Borosilicate Glass

• Float Material: SS316, PTFE, or Agate (depending on application)

• Body/Frame: MS Powder Coated, SS304, or SS316

• End Connections: Threaded (BSP, NPT), Flanged (ANSI, DIN)

• Size Range: 1/4" to 2"

• Flow Range: Available in various flow ranges for water (LPH, LPM) and air (NM3/hr)

• Accuracy:  ±2% of Full Scale

• Operating Pressure: Up to 15 Bar (225 PSI)

• Operating Temperature: Up to  120 ∘C

• Gaskets: Neoprene, Viton, PTFE

Applications:

• Industrial process control and monitoring

• Chemical and pharmaceutical plants

• Laboratory applications and research

• Water and wastewater treatment

• Gas analysis and sampling systems

• Dosing and blending applications

• OEM equipment and machinery

Product Details:

Dharvi Instruments Pvt Ltd. offers a state-of-the-art range of Electromagnetic Flow Meters, commonly known as Mag Meters, designed for highly accurate and reliable measurement of conductive liquids. Our Mag Meters operate on Faraday's Law of Electromagnetic Induction, a principle that ensures measurement is independent of the liquid's density, viscosity, and temperature. This makes them the ideal solution for measuring a wide range of fluids, including water, wastewater, slurries, acids, and chemicals.

Our Electromagnetic Flow Meters are engineered to provide exceptional performance in demanding industrial environments. With no moving parts, they offer a maintenance-free solution, reducing downtime and operational costs. The meter's design minimizes pressure drop, ensuring an efficient and unobstructed flow path, making it perfect for applications where energy consumption is a critical factor.

Key Features:

• High Accuracy: Provides superior measurement accuracy, typically ±0.5% of the reading, ensuring precise and reliable data for process control and billing.

• No Moving Parts: The absence of any mechanical components eliminates wear and tear, providing a long service life and a virtually maintenance-free operation.

• Low Pressure Drop: The open-tube design does not obstruct the flow, resulting in negligible pressure loss and reduced pumping costs.

• Bidirectional Measurement: Capable of measuring flow in both forward and reverse directions, a crucial feature for many industrial applications.

• Wide Range of Applications: Ideal for measuring the flow of conductive liquids, slurries, pastes, and corrosive chemicals.

• Robust Construction: Constructed with a durable liner (PTFE, Neoprene, PFA) and high-quality housing materials (Carbon Steel, SS304, SS316) to withstand harsh conditions.

• Variety of Outputs: Available with standard outputs like 4-20mA, Pulse, and communication protocols such as RS485 (Modbus) for seamless integration into SCADA and DCS systems.

• Digital Display: Features a bright, user-friendly digital display for local indication of flow rate and totalized flow.

Technical Specifications :

• Measuring Principle: Faraday's Law of Electromagnetic Induction

• Application Media: Conductive Liquids (Water, Wastewater, Acids, etc.) with a minimum conductivity of 5 μS/cm

• Line Size: DN15 (1/2") to DN600 (24")

• Accuracy: ±0.5% of Actual Flow Rate

• Body Material: Carbon Steel (CS), Stainless Steel (SS304, SS316), PP.

• Liner Material: PTFE, Rubber,

• Electrode Material: SS316L, Hastelloy-C, Titanium

• End Connection: Flanged (ANSI, DIN), Threaded

• Operating Pressure: Up to 16 Bar (higher pressure ratings available)

• Operating Temperature: Up to 150∘C (depending on liner material)

• Output: 4-20mA, Pulse, RS485 (Modbus)

• Power Supply: 230 V AC / 24 V DC

• Ingress Protection: IP65 / IP67 (Sensor), IP65 (Converter)

Applications:

• Water and Wastewater Treatment Plants

• Chemical and Pharmaceutical Industries

• Food and Beverage Processing

• Pulp and Paper Mills

• Mining and Metal Processing

• Utilities and Irrigation Systems

• Slurry and Abrasive Fluid Measurement

Product Details:

Dharvi Instruments Pvt. Ltd. offers a reliable range of Hydrostatic Level Transmitters, designed for continuous and accurate measurement of liquid levels in tanks, reservoirs, and open channels. These transmitters operate on the principle of hydrostatic pressure, where the pressure exerted by the liquid column is converted into a proportional electrical signal for monitoring and control.

Hydrostatic transmitters are widely used in water and wastewater management, chemical processing, power plants, and industrial liquid storage due to their simplicity, high reliability, and adaptability to harsh environments.

• Continuous Level Measurement: Provides accurate, real-time monitoring of liquid levels.

• Robust Construction: Stainless steel, SS316L, or Alloy housing ensures durability in corrosive and high-temperature environments.

• Flexible Installation: Submersible or remote mounting options for open tanks, closed vessels, or sumps.

• Wide Range of Output Signals: 4–20 mA, HART, Modbus, or Profibus for integration with SCADA/DCS systems.

• High Accuracy & Stability: ±0.25% of Full Scale for precise level monitoring.

• Low Maintenance: No moving parts in contact with liquid, reducing wear and servicing.

• Optional Accessories: Venting kits, protective tubes, and signal conditioners for specific applications.

• Type: Hydrostatic Level Transmitter (Submersible / Remote Mounted)

• Sensing Element: Piezo-resistive, capacitive, or strain gauge

• Housing Material: SS304 / SS316 / SS316L / Hastelloy / PVDF

• Cable Material: PU, PVC, or SS Braided for submersible models

• Measuring Range: 0–1 m to 0–50 m water column (custom ranges available)

• Operating Pressure: Up to 50 bar (depending on model and application)

• Operating Temperature: -20°C to 120°C standard; higher on request

• Accuracy: ±0.25% of Full Scale

• Output Signal: 4–20 mA, HART, Modbus, Profibus

• Ingress Protection: IP68 for submersible versions; IP65 for remote mounting

• Mounting Orientation: Vertical or horizontal, depending on application

• Water Storage Tanks and Reservoirs

• Wastewater Treatment Plants and Sewage Systems

• Chemical and Petrochemical Process Vessels

• Cooling Water and Boiler Feed Tanks

• Food & Beverage and Pharmaceutical Industry Tanks

• Open Channels, Rivers, and Dams

• Industrial Process Monitoring and Automation

• High Accuracy & Reliability: Provides precise liquid level measurement under varying conditions.

• Durable & Corrosion-Resistant: Suitable for aggressive liquids and industrial environments.

• Maintenance-Free: No moving parts, ensuring long-term stability and minimal servicing.

• Remote Monitoring Capability: Compatible with PLC/DCS/SCADA systems for automation.

• Flexible Installation: Submersible or remote-mounted versions available for diverse applications.

• Adaptable Range: Customizable for different tank sizes, fluid densities, and pressure conditions.

• Venting or pressure compensation kits for closed tanks

• Display units for local indication

Product Details:

Dharvi Instruments Pvt. Ltd. offers a superior range of Metal Tube Rotameters, engineered for precise and reliable flow measurement of liquids, gases, and steam under demanding industrial conditions. These instruments are ideal for applications involving high pressure, high temperature, or opaque fluids where conventional glass rotameters are unsuitable.

Operating on the variable area principle, the Metal Tube Rotameter features a float that moves freely within a tapered metal tube in response to the flow rate. The float position is magnetically coupled to an external indicator or transmitter, ensuring leak-proof and safe flow indication without direct contact between the process fluid and indicator mechanism.

• Rugged Construction: Designed for harsh environments with stainless steel housing and precision internal components.

• Wide Application Range: Suitable for liquids, gases, and steam with varying densities and viscosities.

• Magnetic Coupling: Ensures complete process isolation, eliminating leakage and enhancing safety.

• High Pressure & Temperature Capability: Handles up to 100 bar and 300°C, depending on model and material.

• Flexible Indication Options: Local pointer indication, transmitter (4–20 mA), or alarm switches available.

• Accurate & Repeatable: Standard accuracy of ±2% of full scale with excellent repeatability.

• Compact Design: Space-saving construction for vertical mounting in pipelines.

• Custom Calibration: Individually calibrated for specific fluids and process conditions.

• Low Maintenance: Simple design, minimal moving parts, and long operational life.

• Type: Metal Tube Rotameter (Variable Area Flow Meter)

• Body Material: SS304 / SS316 / SS316L / Hastelloy / PTFE Lined (as required)

• Float Material: SS316 / PTFE / Titanium / Hastelloy

• Indicator Housing: Aluminum (Powder Coated), SS304, or Flameproof Enclosure

• End Connections: Flanged (ANSI 150#, 300#, PN16) or Screwed (BSP/NPT)

• Size Range: 15 NB (½”) to 100 NB (4”)

• Flow Range: 100 LPH to 40,000 LPH for liquids; 2 Nm³/hr to 400 Nm³/hr for gases

• Operating Pressure: Up to 100 bar (depending on construction)

• Operating Temperature: Up to 300°C (with suitable materials)

• Accuracy: ±2% of Full Scale (±1% optional)

• Output (Optional): 4–20 mA / HART / RS485

• Switches (Optional): SPDT Reed or Micro Switch for Alarm/Control

• Mounting: Vertical, flow direction bottom to top

• Protection Class: IP65 / IP67 Weatherproof or Flameproof (Ex d IIA/IIB)

• Chemical and Petrochemical Plants

• Oil and Gas Processing Units

• Power Generation & Utility Systems

• Pharmaceutical and Biotech Industries

• Water and Wastewater Treatment Plants

• Food and Beverage Processing

• HVAC and Boiler Feed Systems

• Pulp and Paper Manufacturing

• Metal and Mining Operations

Product Details:

Dharvi Instruments Pvt. Ltd. offers a robust range of Float Operated Level Transmitters, designed for accurate and continuous measurement of liquid levels in tanks, vessels, and process systems. These transmitters convert the vertical movement of a float into an electrical signal, providing reliable remote monitoring and integration with control systems.

The transmitter operates using a magnetic or mechanical coupling mechanism, ensuring leak-proof operation and complete isolation of the measuring system from the process fluid. It is ideal for corrosive, high-temperature, or high-pressure applications where conventional level switches or sight glasses may not perform reliably.

• Continuous Level Measurement: Provides precise and real-time level monitoring.

• Safe & Leak-Proof: Float-based design with magnetic coupling ensures no direct contact with process fluid.

• Durable Construction: Available in SS304, SS316, PTFE-coated, or exotic alloys for corrosive or high-temperature media.

• Versatile Output Options: 4–20 mA, HART, or pulse outputs for integration with PLC/DCS systems.

• High Pressure & Temperature Capability: Suitable for pressures up to 40 bar and temperatures up to 250°C.

• Compact & Modular Design: Easy installation in side, top, or vertical tank configurations.

• Optional Local Indication: Magnetic or mechanical pointer display available for onsite reading.

• Low Maintenance: Simple design with long-term reliability and minimal servicing.

• Type: Float Operated Level Transmitter (Continuous Level Measurement)

• Body Material: SS304 / SS316 / Carbon Steel / PTFE-coated / Alloy C276

• Float Material: SS304 / SS316 / PTFE-coated / Titanium

• Measuring Range: Up to 5 meters standard (longer lengths available on request)

• Operating Pressure: Up to 40 bar

• Operating Temperature: -20°C to 250°C (depending on materials)

• Output Options: 4–20 mA, HART, Pulse, or RS485 Modbus

• Accuracy: ±5 mm or ±0.5% of full scale

• Mounting Orientation: Vertical or side-mounted as per tank configuration

• Enclosure Protection: IP65 / IP67 Weatherproof, optional Flameproof (Ex d IIA/IIB)

• Chemical and Petrochemical Storage Tanks

• Oil & Gas Process Vessels and Fuel Storage

• Water and Wastewater Treatment Plants

• Pharmaceutical and Biotech Industry Reactors

• Food and Beverage Processing Tanks

• Cooling Water, Boiler Feed, and Condensate Tanks

• Power Generation and Utility Systems

• Marine and Offshore Liquid Storage

Product Details:

Dharvi Instruments Pvt. Ltd. offers a high-performance range of Pressure Transmitters, designed for precise measurement and monitoring of liquid, gas, and steam pressures in industrial processes. These instruments convert pressure into a standardized electrical signal, enabling seamless integration with PLC/DCS systems, SCADA, and process control networks.

Our Pressure Transmitters are engineered for robustness, accuracy, and reliability, making them ideal for chemical, petrochemical, oil & gas, water treatment, and power generation applications. With a wide range of process connections, materials, and output options, these transmitters provide long-term stability in demanding industrial environments.

• High Accuracy & Reliability: Provides precise, repeatable measurements with minimal drift.

• Versatile Applications: Compatible with liquids, gases, and steam across a wide pressure range.

• Rugged Construction: Stainless steel, Hastelloy, or alloy options for corrosive or high-temperature applications.

• Wide Pressure Range: From vacuum to high pressures up to 400 bar (depending on model).

• Output Options: 4–20 mA, HART, Profibus, Modbus, or wireless communication.

• Compact & Easy Installation: Standard flanged or threaded connections for seamless integration.

• High Temperature & Pressure Capability: Suitable for extreme process conditions.

• Maintenance-Free Operation: No moving parts; designed for long-term reliability.

• Type: Industrial Pressure Transmitter

• Sensing Element: Piezo-resistive, capacitive, or strain gauge

• Process Connection: Flanged (ANSI 150#, 300#, PN16) / Threaded (BSP / NPT) / Sanitary Tri-Clamp

• Pressure Range: 0–1 bar to 0–400 bar (absolute, gauge, or differential)

• Output Signal: 4–20 mA, HART, Modbus, Profibus, or Wireless

• Accuracy: ±0.1% to ±0.5% of Full Scale

• Process Temperature: -40°C to 250°C (depending on construction)

• Ambient Temperature: -40°C to 85°C

• Overpressure Protection: 1.5× to 2× Full Scale

• Housing Material: SS304 / SS316 / Aluminum / IP65, IP67, or Explosion-Proof (Ex d IIA/IIB)

• Mounting Orientation: Vertical or horizontal installation

• Chemical and Petrochemical Process Monitoring

• Oil & Gas Production and Refining

• Water and Wastewater Treatment Plants

• Boiler and Steam System Monitoring

• HVAC Systems and Chilled Water Circuits

• Pharmaceutical and Biotech Process Control

• Food and Beverage Industry

• Power Generation and Utilities

• Pulp and Paper Mills