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Starting at $493.75USD
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Dwyer

HF In-Line Flow Monitors

For air, water or caustic fluids, with ± 2% FS, unrestricted mounting, and high temperature and pressure options

Starting at
$493.75USD
Have questions? We're here to help!
Have questions? We're here to help!
Configure

The Series HF In-Line Flow Monitors are ruggedly constructed and ideal for direct measurement for a range of compatible gases, oil or water based liquids. This Series is designed based on a floating orifice disk and variable area flow measurement. Flowing media forces linear motion of the orifice disk and a ring shaped magnet which ride on a tapered center shaft. The transfer magnet drives a clearly visible magnet follower located outside the flow tube, and a ring on the magnet follower indicates flow rate on the direct reading scale.

ServiceCompatible gases or liquids
Wetted MaterialsHFA: Aluminum casing, Buna-N seals, PTFE coated Alnico magnet, SS disk;
HFB: Brass casing, Buna-N seals, PTFE coated Alnico magnet, SS disk;
HFS: 303 SS casing, FKM seals with PTFE backup, PTFE coated Alnico magnet, SS disk
Maximum Viscosity500 SSU
Temperature Limits240°F (116°C)
Pressure LimitsHFA, HFB, HFL and HFH models: 600 PSIG (41 Bar) for air and gas, 3500 PSIG (241 Bar) for liquids;
HFS model: 1000 PSIG (70 Bar) for air and gas, 6000 PSIG (413 Bar) for liquids
Accuracy± 4% FS over entire range;
± 2.5% over center third of the measuring range
Repeatability± 1% of FS
Shipping Weight1/4 in - 1/2 in female NPT models; 2 lb (0.9 kg);
3/4 in - 1 in female NPT models: 3.5 lb (1.59 kg); 1-1/2 in female NPT models: 11 lb (5 kg);
2 in female NPT models: 13.5 lb (6.12 kg)

• Setting pressure relief valves
• Fluid handling equipment
• Detecting low-flow rates for lubricating liquids
• Pulp and paper
• Industrial maintenance
• Fluid power
• Heating loop flow

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