Oval Wheel Meter OK Series

The Bopp & Reuther Oval Wheel Meter Series OK is a high-accuracy volumetric flow meter engineered for the dosing and measurement of liquid chemical fluids across a wide range of industrial processes. Designed for reliability and precision, the OK series ensures accurate flow and volume readings even for aggressive or viscous liquids, making it ideal for chemical, coating, and industrial production environments.

Built from robust stainless steel, grey cast iron, or cast steel (OK 100), the Series OK offers durability and compatibility with solvents, resins, paints, varnishes, alkalis, and acids. With a flow range of 2.5 to 5,000 l/min and accuracy up to ±0.3 %, it delivers consistent results for both continuous measurement and precision dosing.

Available in nominal sizes DN25 to DN500 (1"–16"), the OK series features flanged connections (DIN or ANSI) and supports operation up to 10 bar (145 psi). Its flameproof or intrinsically safe design further ensures reliability and safety in hazardous environments, where accurate and repeatable performance is critical.

Bopp & Reuther Oval Wheel Meter OK Series (OK)

Bopp & Reuther Oval Wheel Meter OK Series Compact Dosing Device OKT

Bopp & Reuther Oval Wheel Meter OK Series (OK)

The Bopp & Reuther Oval Wheel Meter OK is a single-case, direct volumetric flow meter designed specifically for precise filling and dosing of liquids such as oils, lacquers, and similar media. Offering mechanical volume preselection, ±0.5% measurement accuracy, and explosion protection (Zone 1), it provides reliable, maintenance-free operation for industrial liquid filling systems.

The Oval Wheel Meter OK by Bopp & Reuther is engineered for accurate volume measurement and controlled filling of liquids, making it ideal for batching, dispensing, and process automation.

Its mechanical single-case design combines precision engineering with robust materials such as stainless steel, cast iron, or cast steel, ensuring long-term performance and durability. The OK series operates without auxiliary power, relying on a mechanical display with volume preselection that enables up/down control of filling in four adjustable steps, offering intuitive and efficient process control.

With measuring accuracy up to ±0.5%, low maintenance requirements, and optional pump limit switching, the Oval Wheel Meter OK is perfectly suited for filling operations in chemical, paint, lubricant, and coating industries.

Certified for Zone 1 explosion-proof environments, this flow meter ensures safety, precision, and reliability in every filling cycle.

Technical Information

Parameter	Specification
Product Type	Direct volume meter (Single-Case design)
Application	Flow and volume measurement of liquids
Measuring Accuracy	±0.5% of measured value (optional ±0.25%)
Explosion Protection	Zone 1 (Ex-approved)
Process Temperature	0 °C to +70 °C
Process Pressure	Up to 16 bar
Housing Material	AISI 304 stainless steel or aluminum
Wetted Parts	AISI 304 stainless steel or aluminum
Power Supply	Battery or 24 VDC (4–20 mA two-wire device)
Output / Display	4–20 mA, pulse output, digital display
Process Connection	Male thread (R) / Female thread (G)
Special Features	Compact version, high-resolution signal, MFE electronic module, easy installation

Options

Mechanical Volume Preselection: Adjustable up/down control in 4 steps for accurate dosing and filling

Limit Switch Function: Optional pump control for automated filling cut-off

Material Configuration: Available in stainless steel, cast iron, or cast steel housing

Connection Standards: DIN or ANSI flange designs for easy integration

Custom Calibration: Accuracy verification and calibration for specific liquids

Applications

Lubricant and Oil Filling Systems: Accurate volume control for industrial oil and grease packaging

Paints and Coatings Industry: Precise batching of lacquers, varnishes, and solvents

Chemical Processing: Controlled filling of acids, resins, and industrial fluids

Manufacturing and Packaging Plants: Metering and dispensing during automated filling processes

Refineries and Maintenance Shops: Measuring and controlling fuel or oil transfer operations

Benefits

Accurate Filling Control: ±0.5% accuracy for consistent product dosing

Energy-Independent Operation: Fully mechanical design, no auxiliary power required

User-Friendly Interface: Simple preselection system allows 4-step filling control

Durable Construction: Stainless steel or cast metal body ensures long service life

Explosion-Proof Certified: Zone 1 compliance for safe use in hazardous environments

Optional Pump Switching: Enables automatic start/stop during filling operations

Low Maintenance: Minimal moving parts for long-term reliability

Flexible Installation: Compatible with both DIN and ANSI flange systems

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Bopp & Reuther Oval Wheel Meter OK Series Compact Dosing Device OKT

The Bopp & Reuther Compact Dosing Device OKT is a precision electronic filling and dosing system engineered for the accurate and safe handling of flammable liquids such as varnishes and alcohols. Featuring electronic preselection, two-stage switch-off, and integrated LCD control display, it ensures precise volume dosing with ±0.5% accuracy, user-friendly operation, and robust stainless-steel construction.

The Compact Dosing Device OKT from Bopp & Reuther represents the perfect combination of mechanical reliability and electronic intelligence for precise liquid filling operations.

Designed as a complete dosing unit with integrated preselection counter, it provides highly accurate, safe, and efficient control for flammable and sensitive liquids, including varnishes, alcohols, and solvents.

Built with a stainless-steel housing and wetted parts, the OKT guarantees maximum durability, corrosion resistance, and compatibility with demanding process fluids.

Its electro-pneumatic bypass valve allows smooth flow regulation and two-stage shutoff, ensuring drip-free and controlled dosing.

The integrated LCD display and control panel feature 4–20 mA analog output, 3 digital outputs, and a printer interface for real-time process monitoring and documentation.

With no straight inlet or outlet pipe sections required, the OKT offers flexible installation and simple operation — ideal for compact dosing setups, batch filling, and automated packaging lines.

Technical Information

Parameter	Specification
Product Type	Compact dosing device with electronic preselection counter
Application	Precise filling of flammable liquids such as varnish, alcohol, and solvents
Measuring Accuracy	±0.5% of measured value
Process Temperature	–10 °C to +60 °C
Process Pressure	Up to 10 bar
Housing Material	Stainless steel
Wetted Parts	Stainless steel
Power Supply	230 VAC / electro-pneumatic (bypass valve)
Output / Display	4–20 mA, 3 digital outputs, printer interface, LCD display, start/stop button
Process Connection	Flange according to DIN or ANSI standards
Special Features	No inlet/outlet section required, two-stage switch-off, simple operation, high filling precision

Options

Preselection Counter: Electronic preselection with user-programmable filling volumes

Output Interfaces: 4–20 mA signal, 3 digital outputs, printer interface for data logging

Control Features: Start/stop button and two-stage valve control for safe and accurate dosing

Valve Configuration: Integrated electro-pneumatic bypass valve for smooth and controlled filling

Material Versions: All stainless-steel construction for chemical and thermal resistance

Applications

Paints & Coatings Industry: Precise filling of varnishes, lacquers, and solvent-based coatings

Chemical Manufacturing: Dosing and dispensing of flammable or volatile liquids

Food & Beverage Processing: Accurate alcohol or flavor additive filling under controlled conditions

Pharmaceutical & Laboratory Use: Controlled transfer and batching of solvents and reagents

Industrial Production Lines: Automated packaging and batch-filling operations

Benefits

Exceptional Accuracy: ±0.5% filling precision ensures consistent product quality

Safe for Flammable Liquids: Designed for varnish, alcohol, and solvent applications

User-Friendly Operation: Simple control interface with start/stop button and LCD display

Integrated Electronics: Includes 4–20 mA signal output, 3 digital outputs, and printer interface

Two-Stage Switch-Off: Enables controlled filling with reduced splashing and overfill prevention

Durable Stainless-Steel Build: Corrosion-resistant materials for long-term reliability

Flexible Installation: No straight inlet or outlet sections required for compact setups

Automated Compatibility: Easily integrates with existing control systems and batching operations

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Oval Wheel Meter OK Series

Bopp & Reuther Oval Wheel Meter OK Series (OK)

Bopp & Reuther Oval Wheel Meter OK Series Compact Dosing Device OKT

Bopp & Reuther Oval Wheel Meter OK Series (OK)

Benefits

Bopp & Reuther Oval Wheel Meter OK Series Compact Dosing Device OKT

Benefits