Krohne

OPTIFLUX 4050

Electromagnetic flowmeter engineered for demanding applications involving abrasive and corrosive liquids.

The OPTIFLUX 4050 is a robust electromagnetic flowmeter designed to handle aggressive and abrasive liquid media across a broad temperature range of -40 to +180°C. With maximum process pressure capability of 40 bar and multiple liner options—including PFA, PTFE, polyurethane, hard rubber, ETFE, and soft rubber—it delivers reliable measurement in challenging chemical and industrial environments. Featuring analog 4–20 mA output, pulse/frequency outputs, and digital communication via HART® and Modbus RTU, the meter integrates seamlessly into process automation systems. Certified for hygienic applications (FDA) and marine service across major classification societies, it supports flange connections to EN, ASME, and JIS standards from DN2.5 to 1200.

Specifications

Product type: Flowmeter
Product family name: OPTIFLUX
Product positioning: For basic applications with abrasive and aggressive liquids
Measurement principle: Electromagnetic
Measured media: Liquids
Process pressure: max. 40 barg/ 580 psig
Process temperature: -40…+180°C/ -40…+356°F
Liner: Perfluoroalkoxy alkane (PFA), Polytetrafluoroethylene (PTFE), Polyuretane (PUR), Hard rubber, Ethylene tetrafluoroethylene (ETFE), Soft rubber
Flange connections: EN (1092-1): DN2.5…1200 ASME (B 16.5): ⅒…48" JIS (B 2220): 2.5…1000A
Certificates/Approvals Hygienic: FDA
Certificates/Approvals Marine: ABS, BV, CCS, DNV, KR, LR, NK, RINA, CRS, IRS, PRS, RS
Analogue outputs: 4…20 mA
Discrete outputs: Pulse, Frequency, Status
Digital outputs: HART ® , Modbus RTU