RHM 15

FLOW SENSOR

The RHM 15 is an all-purpose meter suitable for liquid processing plants. A wide application flow range capability allows for commonality of installation across numerous lines – a real benefit to owners and operators.

Range: 0 kg/min up to 240 kg/min
Pressure: up to 734 bar (10645 psi)
Temperature: -50°C (-58°F) up to +210°C (410°F)
Accuracy: 0.1 % of rate
Materials: SS 316L / SS 316Ti, Alloy C22 – 2.4602, Super Duplex – 1.4410, Tantalum – UNS R05200
Process Connection: ¾" up to 2"

CONFIGURE

CATEGORY Medium Size Sensors, Chemical Injection, Fuel Consumption, Oil Measurement, Painting/Coating Lines, Plastics Production

General

General Specifications

Nominal Flow (Q_nom)*	0.6 kg/min (1.32 lb/min)
Maximum Flow (Q_max)*	1.2 kg/min (2.65 lb/min)
Typical Minimum Flow (Q_min)*	0.002 kg/min (0.004 lb/min)
Serial Tube / Single Path	Flow rates Q_max, Q_nom and Q_min for "serial" sensors will be 50% of the above listed parallel/dual path version.
Operating Temperature	Fluid temperature range options cover from -196 °C to +210 °C (-320 °F to +410 °F) For integral transmitter versions please refer to transmitter datasheet
Ambient Temperature	-50 °C to +80 °C (-60 °F to +180 °F). High temperature version for oven installation up to +210 °C (+410 °F) available
Pressure Ratings	1481 bar (21480 psi) – dependent upon material
Electrical Connection Sensor w/o Integral Transmitter	M20 x 1.5 standard cable entry for JM, SM terminal box versions Optional entries available : ½" NPT or M25 x 1.5 (only for SM) or ¾" NPT (only for SM) M16 x 1.5 standard cable entry for PM terminal box version Max. cable length to remote RHE transmitter 100 m/330 ft.
Sensor Enclosure Materials	Stainless steel 304 (standard), SS 316L (optional) Coated aluminum terminal box, SS 316L terminal box (optional)
Enclosure Type	Protection class IP66 (IP66 is mostly equivalent to NEMA 4X) Optionally IP66-IP67 (IP67 declared by manufacturer, IP67 is mostly equivalent to NEMA 6)
Wetted Materials	Flow tubes SS 316L, SuperDuplex, Sandvik HP160®, Alloy C22 Manifolds SS 316L; seals: FKM, FFKM, FVMQ, EPDM Standard flanges SS 316Ti, other connections SS 316L Additional/customer specific materials available upon request
Process Connections	The Rheonik AnyPipeFit Commitment covers a wide range of process connections and types. Consult factory for types/sizes not listed in this data sheet on the Mechanical Construction pages
Pressure Rating Compliance	Pressure Equipment Directive (PED)
Certifications and Approvals	ATEX / IECEx Approvals Zone 0, 1, 2 (details see page 18) North American Approvals Cl. I, Div. 1, 2, Gr. A,B,C,D, Zone 0, 1, 2 (see page 18) American Bureau of Shipping (ABS) DNV approval for marine applications
Testing and Inspection	All sensors are hydro tested, calibrated and supplied with a traceable calibration certificate. Customized calibration and testing services are available
Project Documentation and QA, Services	Rheonik offers a full set of services for large and complex engineering projects. Typical services offered are, but not limited to: •Certificates of origin and conformity, mill certificates •Data books including WPS-WPQR, WPQ, NDT, test & quality plans, functional testing, calibration procedures, customized packing, factory acceptance etc. •Painting to project specification •Start up and commissioning services on/offshore
Options	Customization services for machine integration. Consult factory

Nominal Flow (Q_nom)*	0.6 kg/min (1.32 lb/min)
Maximum Flow (Q_max)*	1.2 kg/min (2.65 lb/min)
Typical Minimum Flow (Q_min)*	0.002 kg/min (0.004 lb/min)
Serial Tube / Single Path	Flow rates Q_max, Q_nom and Q_min for "serial" sensors will be 50% of the above listed parallel/dual path version.
Operating Temperature	Fluid temperature range options cover from -196 °C to +210 °C (-320 °F to +410 °F) For integral transmitter versions please refer to transmitter datasheet
Ambient Temperature	-50 °C to +80 °C (-60 °F to +180 °F). High temperature version for oven installation up to +210 °C (+410 °F) available
Pressure Ratings	1481 bar (21480 psi) – dependent upon material
Electrical Connection Sensor w/o Integral Transmitter	M20 x 1.5 standard cable entry for JM, SM terminal box versions Optional entries available : ½" NPT or M25 x 1.5 (only for SM) or ¾" NPT (only for SM) M16 x 1.5 standard cable entry for PM terminal box version Max. cable length to remote RHE transmitter 100 m/330 ft.
Sensor Enclosure Materials	Stainless steel 304 (standard), SS 316L (optional) Coated aluminum terminal box, SS 316L terminal box (optional)
Enclosure Type	Protection class IP66 (IP66 is mostly equivalent to NEMA 4X) Optionally IP66-IP67 (IP67 declared by manufacturer, IP67 is mostly equivalent to NEMA 6)
Wetted Materials	Flow tubes SS 316L, SuperDuplex, Sandvik HP160®, Alloy C22 Manifolds SS 316L; seals: FKM, FFKM, FVMQ, EPDM Standard flanges SS 316Ti, other connections SS 316L Additional/customer specific materials available upon request
Process Connections	The Rheonik AnyPipeFit Commitment covers a wide range of process connections and types. Consult factory for types/sizes not listed in this data sheet on the Mechanical Construction pages
Pressure Rating Compliance	Pressure Equipment Directive (PED)
Certifications and Approvals	ATEX / IECEx Approvals Zone 0, 1, 2 (details see page 18) North American Approvals Cl. I, Div. 1, 2, Gr. A,B,C,D, Zone 0, 1, 2 (see page 18) American Bureau of Shipping (ABS) DNV approval for marine applications
Testing and Inspection	All sensors are hydro tested, calibrated and supplied with a traceable calibration certificate. Customized calibration and testing services are available
Project Documentation and QA, Services	Rheonik offers a full set of services for large and complex engineering projects. Typical services offered are, but not limited to: •Certificates of origin and conformity, mill certificates •Data books including WPS-WPQR, WPQ, NDT, test & quality plans, functional testing, calibration procedures, customized packing, factory acceptance etc. •Painting to project specification •Start up and commissioning services on/offshore
Options	Customization services for machine integration. Consult factory

Nominal Flow (Qₙₒₘ)*	150 kg/min (330.7 lb/min)
Maximum Flow (Qₘₐₓ)*	200 kg/min (440.9 lb/min)
Typical Minimum Flow (Qₘᵢₙ)*	2 kg/min (4.4 lb/min)
Serial Tube / Single Path	Flow rates Qmax, Qnom and Qmin for "serial" sensors will be 50% of the above listed parallel/dual path version.
Operating Temperature	Fluid temperature range options cover applications from -196°C to +350°C (-320°F to +662°F). For integral transmitter versions please refer to transmitter datasheet
Ambient Temperature	-50 °C to +80 °C (-60 °F to +180 °F) (standard), versions available for installation in vacuum chamber (-260 °C / -430 °F) or oven (up to +210 °C / +410 °F) (optional)
Pressure Ratings	Up to 882 bar / 112792 psi - dependent upon material
Electrical Connection Sensor w/o Integral Transmitter	M20 x 1.5 standard cable entry for JM, SM terminal box versions Optional entries available: ½” NPT or M25 x 1.5 (only for SM) or ¾″ NPT (only for SM) M16 x 1.5 standard cable entry for PM terminal box version Max. cable length to remote RHE transmitter 100 m/330 ft
Sensor Enclosure Materials	Stainless steel 304 (standard), SS 316 (optional) Coated aluminum terminal box, SS 316 terminal box (optional)
Enclosure Type	Protection class IP66, NEMA 4X (standard), IP66/67, NEMA 4X/6 (optional)
Wetted Materials	Flow tubes SS 316Ti, Alloy C22, Tantalum or SuperDuplex Manifolds SS 316L; Seal material (manifold construction): PTFE Standard flanges SS 316Ti, other connections SS 316L Additional/customer specific materials available upon request
Process Connections	Nearly any – the Rheonik AnyPipeFit Commitment. Consult factory for types/sizes not listed in this data sheet on the Mechanical Construction pages
Pressure Rating Compliance	Europe – PED: Sound Engineering Practice (SEP), Module A2, Module B3.1+C2 Canada – CRN: Canadian Registration Number
Certifications and Approvals	ATEX / IECEx Approvals for Zone 0, 1 (details see page 17) North American Approvals Class I, Div. 1, 2, Gr. A,B,C,D, Zone 0, 1 MID custody transfer approval (OIML R117) American Bureau of Shipping (ABS) Product Type Approval for use on marine vessels
Testing and Inspection	All sensors are hydro tested, calibrated and supplied with a traceable calibration certificate. Customized calibration and testing services are available
Project Documentation and QA, Services	Rheonik offers a full set of services for large and complex engineering projects. Typical services offered are, but not limited to: Certificates of origin and conformity, mill certificates Data books including WPAR, WQS, NDT, test & quality plans, functional testing, calibration procedures, customized packing, factory acceptance etc. Painting to project specification Start up and commissioning services on/offshore
Options	Enclosure heating for high temperature applications Cleaning for oxygen service , … For more consult factory

* At Q_nom pressure drop across a parallel tube sensor will be approximately 2 bar (29 psi) for H₂0. Sensors can be operated at higher flow rates up to Q_max but pressure drop will be higher. Typical Minimum Flow Q_min is the recommended lowest flow rate for an accurate measurement. Sensors will measure flow rates lower than Q_min but uncertainty will increase beyond 1% of rate.

The flow rate specifications above relate to standard pressure, parallel tube, manifold sensor versions. Models with higher pressure ratings have increased wall thickness and will have higher pressure drops.