For viscous and solids-bearing media

Wedge Flow Meters — DP Flow Meter for Viscous Media

Name: Wedge Flow Meters
Brand: Shizhong
SKU: wedge-flow-meters

A segmental wedge restriction that maintains an open flow path for difficult liquids and slurries.

Request a quotation Selection Guide

Wedge Flow Meters

Engineered for the service

Per ISO 5167-6:2022, wedge meters generate differential pressure across a wedge-shaped primary element. Their open geometry is suitable for viscous, contaminated and solids-bearing services where small passages are undesirable.

Key design features

Open flow passage

Suitable for low Reynolds number services

Rugged welded body

Remote-seal options

Technical specifications

Wedge Flow Meters technical specifications
Nominal size (DN)	DN50–DN500
Beta ratio (β)	0.377–0.791 (equivalent; h/D 0.2–0.6)
Reynolds number range	Per ISO 5167-6:2022; suitable for lower-Re service
Pressure tapping	Upstream and downstream body taps; remote seals optional
Accuracy	±0.5%–1.0% (calibrated); ±4% uncalibrated per ISO 5167-6
Material options	304SS, 316L SS, Carbon steel, Hard-faced wedge for erosive service
Temperature range	-50°C to +500°C (material dependent)
Pressure rating	PN2.5–PN420 / ASME Class 150–2500
Permanent pressure loss	Moderate
Straight-run requirement	10D–20D upstream (ISO 5167-6 reference)
Discharge coefficient	C = 0.77 − 0.09β (ISO 5167-6:2022)
ISO standard reference	ISO 5167-6:2022; project-specific calibration

Typical applications

Slurries

Heavy oil

Wastewater

Viscous chemicals

Final specifications are confirmed against process data, piping, material, pressure class, applicable code and metrology requirements.

Related products

V-Cone Flow MetersA center-body differential-pressure meter for constrained straight runs and challenging flow profiles.Averaging Pitot TubesAn insertion primary element that averages multiple impact-pressure samples across the pipe for cost-effective large-diameter measurement.

Related technical resources

Wedge Flow Meter Working PrincipleHeavy crude, slurry and low-Reynolds-number wedge-meter selection guidance

Ready to discuss your application?

Send process data and we'll respond with a preliminary selection within one business day.

ISO 9001TS Licensed30+ PatentsSince 1989

Talk to an Engineer