Dwyer Instruments HFB-5-100

The Dwyer Instruments HFB-5-100 is part of the HF Series In-Line Flow Monitors, engineered for durable and reliable flow measurement in both industrial and process applications. This variable area flowmeter utilizes a floating orifice disk and magnetically coupled follower for precise, direct-reading flow indication.

Constructed with a brass casing and Buna-N seals, the HFB-5-100 is well-suited for measuring compatible gases, oils, or water-based liquids. Whether you’re monitoring low-flow lubrication systems or controlling process loops in fluid handling, this flowmeter delivers dependable performance and repeatable readings.

Key Features

• Brass body (HFB model) for compatibility with a wide range of fluids

• Direct-reading magnetic flow indication through a ring follower

• ±4% FS accuracy across the range; ±2.5% in the center third

• High repeatability: ±1% FS

• Handles up to 3500 psig (241 bar) for liquid systems

• Maximum fluid temperature: 240°F (116°C)

• Accepts fluids with viscosity up to 500 SSU

• Compact in-line installation with female NPT connections

• Ideal for setting valves, detecting low-flow conditions, and system maintenance

Why Choose the Dwyer HFB-5-100?

Built for tough environments, the HFB-5-100 offers accurate visual flow indication without the need for external power or complex installation. The magnetically-coupled indicator makes it easy to read flow values in real time, and the brass construction ensures chemical compatibility for most water-based and petroleum fluids.

This flowmeter is a cost-effective choice for engineers and technicians across fluid power, pulp & paper, and industrial maintenance sectors.

Explore more in our Flowmeters category or learn how to compare technologies in our article: Flowmeter Types Explained: Ultrasonic vs Magnetic – Choosing the Right Technology for Accurate Flow Measurement.

Applications

• Pressure relief valve setting

• Lubrication flow monitoring

• Fluid handling and transfer systems

• Heating and cooling loop verification

• Pulp and paper production

• General industrial maintenance

• Fluid power systems

Technical Specifications