Specialty Flow Meters & Custom Flow Measurement Solutions
PFS offers specialty flow meters and solutions designed for open-conduit flow for water, sewage, sludge, or any other non-pressurized material.
Our specialized flow meters are designed to deliver accurate and reliable measurements across a variety of challenging applications. From low-flow environments to high-pressure systems, our meters are engineered to cater to your unique requirements. Dive into our collection and discover custom solutions that ensure unparalleled performance and efficiency.

Fabricated Venturi Low Flow Meter (FV-LF)
± 0.50% Uncalibrated Uncertainty
Low Reynolds, Lower Loss
- Line Size: 3/8” to 12”
- Head Loss % of Differential: 20.0 to 40.0 percent
- Recommended Pipe Reynolds Number: Greater than 6,000

Fabricated Elbow Meter (FE)
± 4.00% Uncalibrated Uncertainty
Low Cost, Small Space Required
- Line Size: No limitations
- Recommended Pipe Reynolds Number: Greater than 50,000

Halmi Nozzle (HN)
± 2.00% Uncalibrated Uncertainty
Low Cost, Open Channel Application
- Line Size: 6” to 48”
- Head Loss % of Differential: Low
- Service Life: 25 years plus, depending on materials
To further enhance our application solution process, we offer a wide range of options including CFD, model testing and field calibrations. Once our meters are installed, we also offer a full range of field service solutions including training and inspection. Whether you’re dealing with industrial, pharmaceutical, mining, oil & gas or municipal environmental flows, trust our specialty meters to provide the precision you need.
Contact us today for a customized flow meter solution tailored to your specific requirements.