Rheonik RHM06 Coriolis Mass Flow Meter Sensor 36 kg/min

The smallest Rheonik industrial Coriolis meter for dosing and batching

The Rheonik RHM06 is a compact Coriolis mass flow sensor for small streams: its typical range tops out at 36 kg/min and it can measure down to about 100 g/min. Rheonik positions it for additive dosing, chemical injection, mixing and batching, and package and container filling. A two-tube design measures mass flow, density and temperature in the same body, and because the tubes can be fitted for pressures up to 1722 bar the RHM06 also suits high-pressure injection lines where a smaller meter would be derated.

It is a sensor only; a Rheonik RHE transmitter converts its signals into outputs, either mounted on the sensor or remotely over cable of up to 100 m.

Datasheet highlights

• Mass flow uncertainty down to 0.05% and repeatability down to 0.05%.
• Temperature ratings from -196 C to +350 C; extended ranges on request.
• 4 kHz measurement updates when paired with an RHE40 series transmitter.
• AnyPipeFit: custom process connection type and size on any meter.
• Stainless steel SS 304 enclosure, SS 316L optional; integral and remote transmitter versions.

Technical specification

Pressure rating by tube material

The maximum pressure is set by the weakest of the tube, connection block and process connection. At 50 C the datasheet lists 213 bar for the standard SS 316L tube (P1), 300 bar for Alloy C22 (H1), 580 bar for P2 and D2, 910 bar for D3, 1234 bar for D4 and 1722 bar for the Super Duplex D5 tube. A tantalum tube (T1) is rated 118 bar. Super Duplex tubes have a minimum operating temperature of -40 C. Threaded connection blocks are rated 700 bar (PM) or 1220 bar (PH).

Selecting and ordering

The order code has 15 fields covering temperature range, tube material and pressure, design type, process connection, terminal box, calibration and options. For a low-flow dosing line choose a serial-tube SM design when the fluid tends to clog, and a parallel-tube PM design for standard solutions with short delivery time. Threaded connections are G 1/2, 1/2 NPT or Autoclave 9/16 in, while flanges run from ANSI 1 in 150# to 1500# or DIN DN25. Face-to-face length is 80 mm for standard threaded blocks and 280 mm for 1 in 150# flanges, with a tolerance of 2 mm.

Reading the order code

Field 1 is the performance class: S is the classic multi-purpose high-accuracy meter and P is the premium highest-accuracy meter. Field 2 sets the fluid temperature range: N1 is -20 to +120 C, NA is -50 to +120 C, EM is -20 to +160 C, E2 is -50 to +210 C, E3 is -196 to +50 C and H4 is -20 to +350 C. The design-type field chooses PM or PH (parallel connection block, the latter high pressure), SM (serial block), PF (sealless, flange or hub) or PT (sealless, threaded), and the seal field offers FKM, FFKM, FVMQ, EPDM or HNBR. Housing codes add an optional rupture disc, with or without a G 3/4 in drain connection. The datasheet gives hub code H10 (G-Lok 1 in) and flanges from ANSI 1/2 in to 1 in and DIN DN15 and DN25 in PN40 and PN100.

Check each field against the application before you request a quote, because the pressure and temperature ratings in the table above apply to specific code combinations.

Hazardous areas and certification

Approvals are given by order code: ATEX and IECEx for Zone 0, 1 and 2, and North American Class I, Div. 1 and 2, groups A to D. Marine approval from DNV and CCS, OIML and MID custody transfer certification are also listed in the datasheet, so check which apply to the exact order code before ordering.

Typical use in Oman and the Gulf

Additive and corrosion-inhibitor skids at gas plants, chemical injection on wellheads and pipelines, laboratory pilot plants and filling stations commonly need small, accurate mass flow rather than volume flow.

Selection and installation notes

A Coriolis sensor is sized from the flow range and the pressure drop, so confirm the fluid, density, viscosity, operating pressure and temperature before ordering. Mount the sensor on a rigid support without stressing the pipe, keep it full of liquid, avoid mounting where vibration from pumps reaches it and follow the orientation and drain advice in the manual. Zero the meter with no flow once the line is full, record the settings, and choose the electronics and output type that match the control system.

Information needed for a quotation

Send the full model code, the quantity, the delivery location in Oman or the GCC, the intended use and any accessories needed, so that the complete package can be quoted together.

Documents and supply information

The manufacturer data sheet is attached to this page and should be read together with the project specification and the site risk assessment before a purchase is confirmed. Ratings, standards and dimensions are quoted as printed on that sheet. Lead time, stock position and certificates available with the shipment are confirmed in the quotation, and we supply to Oman and the wider GCC region for industrial, utility and building services projects.

Related items

Pair the sensor with a Rheonik RHE transmitter; mounting brackets M and MF are listed in the datasheet. See flow and process measurement for related equipment. Send the fluid, flow, pressure and connection and we will prepare a quotation; confirm the full order code before ordering.