ReCircLine™ System
All-in-one recirculation line with SRV sensor
Extract a controlled, representative slipstream for stable, repeatable viscosity and temperature measurements, even where a direct inline probe cannot be installed.
Overview
Measure where a direct probe can’t go
The ReCircLine system enables fluid measurements in tanks or process lines where a direct sensor probe installation is not feasible, for example, when a mixer occupies the vessel. A Rheonics inline viscometer sits inside the loop and delivers stable, repeatable measurements under controlled flow, independent of disturbances in the main process line or tank.
The outlet can be routed back to the process, to the tank, or to a waste bucket, giving you flexible integration without touching total production throughput.
Dimensions (WxHxD)
400 x 380 x 190 (mm)
15.5 x 15 x 7.5 (inch)
Max. viscosity (SRV)
up to 250,000 cP
Power Input
110 / 220 V AC
Power Consumption
max. 150 W
Total Weight
17 kg (37.5 lb)
Communication Interface
Ethernet Port with
Profinet
Control System
Siemens PLC system
Steady-state flow for reliable readings
For non-Newtonian fluids, viscosity is shear-rate dependent and therefore flow-dependent, so measurements should be taken under constant, steady-state flow. The value of interest is viscosity at steady flow — start-up and static behavior are typically not relevant. ReCircLine supports three operating modes, each capable of delivering that stable flow.
Continuous
The pump runs continuously to hold a constant flow rate through the loop for uninterrupted monitoring.
Pulse
Timed pump pulses refresh the fluid at the sensor on a defined cycle, balancing sampling and fluid use.
Intermittent
Occasional pump operation draws a fresh sample on demand for periodic, steady-flow measurements.
Continuous, pulse or intermittent modes deliver the steady flow required for reliable readings.
Integrated SRV measures up to 250,000 cP across a broad set of process fluids.
4.3" touchscreen for live viscosity, temperature and full pump control.
17 kg cabinet with carry handles; quick assembly and disassembly for cleaning.
Applications
Where ReCircLine fits
The RCL extracts a controlled, representative slipstream to enable real-time monitoring where direct inline installation is impossible.
Sampling mixing vessels
Installation point
Connect bypass to sampling port. Loop through RCL, return separately.
Key benefit
Ideal for vessels with moving blades that would damage stationary sensors.
Characterizing shear-sensitive fluids
Installation point
Draw fluid into RCL. Vary flow rates to map profiles.
Key benefit
Measures non-Newtonian fluids with flow-dependent viscosity changes.
Monitoring small-scale vessels & reactors
Installation point
Route bypass from bottom port through RCL back to top.
Key benefit
Perfect for small reactors lacking space for direct-insertion probes.
Monitoring fouling-prone or sticky fluids
Installation point
Divert a slipstream through a Y-junction; route the outlet to waste so curing or fouling fluid never returns to the line.
Key benefit
Isolate and purge the loop between samples, no permanently wetted probe to foul, and no risk of buildup in the main process.
