Oval Wheel Meter OD Series

The Bopp & Reuther Oval Wheel Meter Series OD is a compact, high-accuracy volumetric flow meter designed specifically for the precise measurement of non-conductive liquids such as oils and demineralized water. With its advanced oval-wheel measuring principle, the OD series ensures reliable and repeatable results — without requiring any inlet or outlet straight sections — making it ideal for space-restricted installations.

Built with stainless-steel housing and PEEK measuring wheels, the OD series offers exceptional chemical resistance, mechanical strength, and long-term stability. It achieves an impressive accuracy of ±0.25 % to ±0.5 % and repeatability of ±0.1 %, even across a wide viscosity range (0.3 – 1,500 mPa·s).

Featuring Tri-Clamp hygienic connections (DIN 32676), the OD series is optimized for process lines in food, beverage, chemical, and industrial applications where precision, cleanliness, and reliability are essential. Withstanding process pressures up to 16 bar and temperatures up to 130 °C, this flow meter ensures consistent measurement performance under demanding operating conditions.

Bopp & Reuther Oval Wheel Meter Flowal? Plus Series OD

The Bopp & Reuther FLOWAL® Plus OD is a precision single-case oval wheel flow meter engineered for high-accuracy liquid filling applications. Designed for liquids above 3 mPa·s, it offers < 0.5% measuring accuracy, stainless-steel 316 Ti construction, and ultra-high-resolution pulse output up to 2000 pulses/litre, making it ideal for precision dosing, batching, and automated filling systems.

The FLOWAL® Plus OD from Bopp & Reuther is a direct volumetric flow meter specifically developed for precise liquid filling operations in industrial and hygienic environments.

Operating on the oval-wheel measuring principle, it ensures a linear, viscosity-independent flow measurement for liquids exceeding 3 mPa·s — including oils, coatings, and chemical solutions.

Constructed entirely from stainless steel 1.4571 (316 Ti) with PEEK wetted components, the FLOWAL® Plus OD provides superior chemical resistance, temperature stability, and long-term durability.

It operates at process pressures up to 16 bar and temperatures up to 120 °C, making it suitable for a wide range of filling systems and automated production environments.

The high-resolution Open-Collector PNP pulse output (up to 2000 pulses/litre) ensures exceptional measurement granularity and precise control over every dosing cycle. Compact, maintenance-free, and powered by 24 V DC, the FLOWAL® Plus OD delivers consistent, repeatable performance and integrates easily into digital control and PLC-based filling systems.

Technical Information

Parameter	Specification
Product Type	Direct volume meter (Single-Case design)
Application	Precise filling and dosing of liquids (> 3 mPa·s)
Measuring Accuracy	< 0.5 % of measured value
Process Temperature	–10 °C to +120 °C
Process Pressure	Up to 16 bar
Housing Material	Stainless steel 1.4571 / 316 Ti
Wetted Parts	Stainless steel and PEEK
Power Supply	24 V DC
Output / Display	Pulse output (Open-Collector PNP)
Process Connection	Tri-Clamp fitting (others on request)
Special Features	Ultra-high resolution (up to 2000 pulses/litre), maintenance-free, compact design

Options

Output Variants: Open-Collector PNP pulse output (standard) or other digital formats on request

Connection Types: Tri-Clamp standard, optional threaded or flange connections available

Custom Calibration: Fine-tuned factory calibration for specific viscosity ranges

Material Configuration: Full stainless-steel 316 Ti housing with PEEK measuring wheels

Signal Integration: Compatible with PLCs and digital dosing systems for automated process control

Applications

Paints & Coatings Industry: High-precision filling of varnishes, lacquers, and resins

Chemical Processing: Dosing of viscous process liquids, solvents, and additives

Food & Beverage: Accurate portioning of syrups, oils, and other viscous ingredients

Pharmaceutical & Cosmetic Production: Controlled filling of creams, gels, and active solutions

Industrial Manufacturing: Automated filling and batching systems for production lines

Benefits

Exceptional Resolution: Up to 2000 pulses/litre for ultra-fine dosing control

High Accuracy: < 0.5 % measurement precision for consistent product quality

Robust Construction: Full stainless-steel 316 Ti build ensures durability and chemical resistance

Compact Design: Ideal for tight installations and inline filling systems

Easy Integration: 24 V DC power and pulse output compatible with PLCs and automation systems

Maintenance-Free: Reliable, wear-resistant oval-wheel technology with minimal servicing

Wide Operating Range: Performs accurately from –10 °C to +120 °C and up to 16 bar pressure

Hygienic Option: Tri-Clamp connection supports sanitary applications

Viscosity-Independent Measurement: Consistent performance across various liquid types

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Oval Wheel Meter OD Series

Bopp & Reuther Oval Wheel Meter Flowal? Plus Series OD

Bopp & Reuther Oval Wheel Meter Flowal? Plus Series OD

Benefits