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HEDLAND

Hedland is a brand of variable-area flowmeters used for measuring the flow of liquids and gases in industrial systems. The product line originated in the United States and is known for mechanical, direct-reading designs that operate without external power. Hedland flowmeters are commonly specified for hydraulic, lubrication, and cooling circuits where local indication is required. The meters use a tapered tube and a float that rises with flow rate; the float position is read against a scale to provide an instantaneous flow value. This simple mechanism allows for installation in remote or hazardous areas where electrical supply is unavailable or undesirable. The meters are available in a range of body materials, port sizes, and seal materials to suit different fluids and operating conditions. Many models are rated for pressures up to 350 bar (5,000 psi) and temperatures up to 116°C (240°F), depending on configuration. Connection options include NPT, SAE, and BSP threads, and some models offer flanged connections. Accuracy is typically ±2% of full scale for liquid service, with repeatability of ±1%. The meters can be mounted in any orientation without affecting performance, which simplifies installation in tight spaces. Hedland also offers a line of flow switches and flow transmitters that use the same variable-area principle to provide electrical output or alarm signals. These are used in systems that require remote monitoring or interlock protection. 3G Electric supplies Hedland flowmeters and related accessories as part of its industrial equipment catalog. The product range includes inline flowmeters for oils, water, and gases, as well as flow switches and transmitters. 3G Electric maintains stock of common models and can source less common configurations through its supplier network. Technical documentation, including datasheets and installation manuals, is available for most items. The company supports global shipping and provides logistics coordination for international orders. For plant engineers and maintenance managers, Hedland flowmeters offer a straightforward way to verify flow in critical circuits without the complexity of electronic sensors. The mechanical design is robust and requires minimal maintenance, making it suitable for continuous operation in demanding environments. When selecting a Hedland meter, consider the fluid type, flow range, pressure and temperature ratings, connection size and type, and whether local indication or electrical output is needed. 3G Electric can assist with model selection based on these parameters. The brand's product line is well-established in industries such as oil and gas, chemical processing, power generation, and manufacturing. The meters are also used in mobile equipment and marine applications. Because they are self-contained and do not require power, they are often chosen for backup or emergency systems. 3G Electric's catalog includes over 190 Hedland SKUs, covering a wide range of flow capacities and configurations. This inventory allows for quick fulfillment of standard orders. For custom requirements, 3G Electric can work with the factory to specify a meter that meets specific operating conditions. All products are supplied with applicable documentation and are backed by the manufacturer's standard warranty. 3G Electric does not manufacture these products; it distributes them as part of its role as an industrial equipment supplier. The company's technical team can provide guidance on installation, calibration, and troubleshooting. For more information on specific models, refer to the product datasheets or contact 3G Electric directly.

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About HEDLAND

Hedland is a brand of variable-area flowmeters used for measuring the flow of liquids and gases in industrial systems. The product line originated in the United States and is known for mechanical, direct-reading designs that operate without external power. Hedland flowmeters are commonly specified for hydraulic, lubrication, and cooling circuits where local indication is required. The meters use a tapered tube and a float that rises with flow rate; the float position is read against a scale to provide an instantaneous flow value. This simple mechanism allows for installation in remote or hazardous areas where electrical supply is unavailable or undesirable. The meters are available in a range of body materials, port sizes, and seal materials to suit different fluids and operating conditions. Many models are rated for pressures up to 350 bar (5,000 psi) and temperatures up to 116°C (240°F), depending on configuration. Connection options include NPT, SAE, and BSP threads, and some models offer flanged connections. Accuracy is typically ±2% of full scale for liquid service, with repeatability of ±1%. The meters can be mounted in any orientation without affecting performance, which simplifies installation in tight spaces. Hedland also offers a line of flow switches and flow transmitters that use the same variable-area principle to provide electrical output or alarm signals. These are used in systems that require remote monitoring or interlock protection. 3G Electric supplies Hedland flowmeters and related accessories as part of its industrial equipment catalog. The product range includes inline flowmeters for oils, water, and gases, as well as flow switches and transmitters. 3G Electric maintains stock of common models and can source less common configurations through its supplier network. Technical documentation, including datasheets and installation manuals, is available for most items. The company supports global shipping and provides logistics coordination for international orders. For plant engineers and maintenance managers, Hedland flowmeters offer a straightforward way to verify flow in critical circuits without the complexity of electronic sensors. The mechanical design is robust and requires minimal maintenance, making it suitable for continuous operation in demanding environments. When selecting a Hedland meter, consider the fluid type, flow range, pressure and temperature ratings, connection size and type, and whether local indication or electrical output is needed. 3G Electric can assist with model selection based on these parameters. The brand's product line is well-established in industries such as oil and gas, chemical processing, power generation, and manufacturing. The meters are also used in mobile equipment and marine applications. Because they are self-contained and do not require power, they are often chosen for backup or emergency systems. 3G Electric's catalog includes over 190 Hedland SKUs, covering a wide range of flow capacities and configurations. This inventory allows for quick fulfillment of standard orders. For custom requirements, 3G Electric can work with the factory to specify a meter that meets specific operating conditions. All products are supplied with applicable documentation and are backed by the manufacturer's standard warranty. 3G Electric does not manufacture these products; it distributes them as part of its role as an industrial equipment supplier. The company's technical team can provide guidance on installation, calibration, and troubleshooting. For more information on specific models, refer to the product datasheets or contact 3G Electric directly.

Common Applications

  • Hydraulic systems — Hedland inline flowmeters for oils, such as the H601A series, provide local flow verification on power units and test stands.
  • Lubrication circuits — Hedland variable-area meters with Viton seals measure oil flow to bearings and gears in industrial machinery.
  • Cooling water lines — Hedland flowmeters for water, often with stainless steel bodies, monitor flow in heat exchangers and cooling loops.
  • Chemical processing — Hedland meters with corrosion-resistant wetted parts indicate flow of compatible chemicals in batch and continuous processes.
  • Mobile equipment — Hedland flow switches and meters are used on construction and agricultural machinery for hydraulic system monitoring.
  • Marine and offshore — Hedland flowmeters with high-pressure ratings and marine-grade materials serve in ballast and fuel oil systems.

Frequently asked questions

Common questions about HEDLAND from 3G Electric.

What is the operating principle of a Hedland variable-area flowmeter?

Hedland variable-area flowmeters use a tapered metering tube and a float. Fluid enters the tube from the bottom and flows upward, lifting the float. The annular area between the float and the tube increases with height, so the float reaches an equilibrium position where the upward force from the fluid equals the downward force from gravity. The float's position is read against a scale on the tube to indicate flow rate. This design is simple, requires no external power, and provides direct local indication. The meters are typically accurate to ±2% of full scale for liquids. They can be installed in any orientation without affecting accuracy, although vertical installation with flow upward is common. The meters are available with various end connections and seal materials to suit different fluids.

What are the pressure and temperature ratings for Hedland flowmeters?

Pressure and temperature ratings for Hedland flowmeters vary by model and construction. Many standard models are rated for working pressures up to 350 bar (5,000 psi) and temperatures up to 116°C (240°F). However, these limits depend on the body material, seal material, and connection type. For example, meters with Viton seals are suitable for higher temperatures than those with Buna-N seals. Always refer to the specific product datasheet for exact ratings. Operating outside the rated limits can damage the meter and cause inaccurate readings or leakage. When ordering, specify the fluid, pressure, and temperature so that the correct configuration can be supplied. 3G Electric can provide datasheets for all Hedland models in its catalog.

Can Hedland flowmeters be used with water or other non-petroleum fluids?

Yes, Hedland offers flowmeters for water and other non-petroleum fluids. The product line includes models specifically designed for water, as well as models for oils and gases. The choice of model depends on the fluid's compatibility with the wetted materials. Standard wetted materials include aluminum, brass, and stainless steel, with seals in Viton or Buna-N. For water service, stainless steel bodies and Viton seals are often recommended to resist corrosion. The flow range and scale calibration also differ between oil and water models because of viscosity differences. Using an oil meter on water will result in inaccurate readings. Always select a meter that is calibrated for the fluid being measured. 3G Electric stocks a range of Hedland meters for different fluids and can help identify the correct model.

What is the difference between a Hedland flowmeter and a flow switch?

A Hedland flowmeter provides a visual indication of flow rate, while a flow switch provides an electrical output when flow reaches a set point. Flow switches are used for alarm or control functions, such as signaling low flow or activating a pump. Hedland flow switches use the same variable-area principle but include a magnetic coupling that actuates a reed switch or similar device. Some models combine both functions, offering a local scale and an electrical switch. Flow switches are typically specified when remote monitoring or interlock protection is required. They are available in various switch types, including SPDT and DPDT, and with different electrical ratings. The set point is adjustable on many models. For applications requiring continuous flow measurement and transmission, a flow transmitter is used instead. 3G Electric supplies Hedland flow switches and transmitters alongside the mechanical flowmeters.

How do I select the correct Hedland flowmeter for my application?

To select a Hedland flowmeter, first determine the fluid type, flow range, and whether local indication or electrical output is needed. Then consider the operating pressure and temperature, and choose a meter with ratings that exceed these values. Next, select the connection size and type (NPT, SAE, BSP, flanged) that matches your piping. The body and seal materials must be compatible with the fluid. For viscous fluids, a meter with a larger port size may be required to handle the flow without excessive pressure drop. Accuracy requirements and scale units (gpm, lpm, etc.) should also be specified. Hedland offers a wide range of models, and 3G Electric can assist with selection based on your parameters. Providing complete application details will ensure the correct meter is supplied.

Does 3G Electric supply HEDLAND products?

Yes — 3G Electric (S) Pte. Ltd. supplies HEDLAND products. We stock the HEDLAND catalog and supply genuine factory-original products with full manufacturer warranty and technical support.