Wedge Meters

Rugged DP Metering
for Harsh Fluids
 

Overview

McMenon’s Super Wedge Meters are engineered for the toughest applications, including slurries, high‑viscosity oils, and multiphase mixtures. Their solid‑wedge design resists erosion and clogging, delivering dependable, bi‑directional flow measurement where other meters fail.

Key Features

• Ultra-durable: Solid alloy wedge withstands abrasive fluids
• Bi-directional accuracy: Same performance in forward/reverse flow
• High turn-down: Up to 20:1 for broad operating ranges
• Low maintenance: No moving parts and straightforward inspection

Typical Specifications

Parameter	Value
Line sizes	1″–48″ (DN 25–DN 1200)
Accuracy	±0.75 % of reading
Turn‑down ratio	Up to 20:1
Pressure rating	ANSI 150–600 (PN 10–PN 100)
Materials	316 SS, Duplex SS, Alloy 400, Super Duplex

Applications

• Pulp & paper slurry lines
• High‑viscosity oil and bitumen
• Mud and fracking fluids
• Molten sulfur and polymer melts
• Coal‑gasification and petrochemicals

Case Studies

Hydrocarbon Residue Flow – USA

In partnership with a leading U.S. refinery, McMenon delivered a 12″ SS317/317L Super Wedge Meter (ASTM 8900‑coated) with dual 3″–300 # tappings. The bi‑directional design and 20:1 turndown ensured accurate measurement of viscous atmospheric residues, even under high‑temperature, erosive conditions.

Polymer Melt Conveyance – Germany

A European polymer manufacturer commissioned six 6″ Duplex‑steel wedge meters to monitor molten polymer flows in extrusion lines. Machined with extra‑thick wedge faces, the meters resist abrasive filler particles and deliver ±0.75 % accuracy, critical to maintaining product quality and minimizing scrap.