RHM 10

FLOW SENSOR

The Model RHM 10 is perfect for small scale production with continuous low flow and small batch dispensing requirements. With a variety of construction styles, the RHM 10 is ideal for countless flow applications.

  • Range: 0 kg/min up to 90 kg/min
  • Pressure: up to 1384 bar (20073 psi)
  • Temperature: -196°C (-321°F) up to +210°C (410°F)
  • Accuracy: 0.1 % of rate
  • Materials: SS 316L / SS 316Ti, Super Duplex – 1.4410, Sandvik HP160
  • Process Connection: ½" up to 1 ½"
CONFIGURE
CATEGORY Medium Size Sensors, H2 Filling Station, Chemical Injection, Fuel Consumption, Oil Measurement, Painting/Coating Lines, Plastics Production

General Specifications

Nominal Flow (Qₙₒₘ)*

60 kg/min (132 lb/min)

Maximum Flow (Qₘₐₓ)*

90 kg/min (198 lb/min)

Typical Minimum Flow (Qₘᵢₙ)*

0.25 kg/min (0.55 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 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

Up to 1379 bar / 20000 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 IP 66, NEMA 4 (standard), IP 66/67, NEMA 4X (optional)

Wetted Materials

Flow tubes SS 316L, SuperDuplex or Sandvik HP160©

Manifolds SS 316L, seals FKM, FFKM, FVMQ

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

PED 2014/68/EU Article 4, Section 3 (SEP)

Certifications and Approvals

ATEX / IECEx Approvals Zone 0, 1, 2 (see page 19)

North American Approvals Cl. I, Div. 1, 2, Gr. A, B, C, D, Zone 0, 1, 2

OIML, MID custody transfer approval

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

Customization services for machine integration. Consult factory

 

* At Qₙₒₘ pressure drop across a parallel tube sensor will be approximately 2.2 bar (32 psi) for H₂0. Sensors can be operated at higher flow rates up to Qₘₐₓ but pressure drop will be higher. Typical Minimum Flow Qₘᵢₙ is the recommended lowest flow rate for an accurate measurement. Sensors will measure flow rates lower than Qₘᵢₙ 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.

 

Pressure Drop
*

At Qnom, pressure drop across a parallel tube
sensor will be approximately 1-3 bar (15-44 psi)
for H20.Sensors can be operated at higher flow rates but pressure drop will be higher. Qmin is
the recommended lowest flow rate. Sensors will measure flow rates lower than Qmin, but uncertainty will increase beyond 0.5 % of rate.

The flow 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.