PRODUCT FEATURES 1
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OPTIFLUX 4000
www.krohne.com 08/2019 - 4000525106 - TD OPTIFLUX 4000 R09 en
1.1 The all-round solution for process industries
The OPTIFLUX 4000 OPTIFLUX 4000 OPTIFLUX 4000 design meets the demands of a very wide range of applications in industries 
including the chemical, pulp & paper, water and wastewater, minerals and mining, iron, steel 
and metals, pharmaceuticals and oil & gas industry. 
The OPTIFLUX 4000 has a field proven and unsurpassed lifetime. This is assured by the fully 
welded construction, full bore pipe construction, absence of moving parts and wear resistant 
liner materials. Even for demanding applications in harsh environments or with aggressive and 
abrasive media the OPTIFLUX 4000 can offer a solution.
Examples include water injection under high pressures up to 1500 bar / 21755 psi, sub-sea 
installations, slurries with very high solids contents, alkaline solutions and acids, up to chemical 
dosing, bleaching, colouring, and black liquor in the paper industry. If required, a solution 
beyond our standard scope can be engineered. KROHNE has in-house specialized know-how on 
constructions, welding and exotic materials. 
For custody transfer applications, OPTIFLUX 4000 has a wide range of certifications including 
OIML R49 & R117, MI-001, MI-004 & MI-005. 
1 Robust fully welded construction
2 Diameter range: DN2.5...DN3000
3 PFA, PTFE, ETFE, PU, hard rubber and soft rubber liners
4 Hastelloy, titanium, tantalum, stainless steel, platinum and low noise electrodes