Rotameter T

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Description 

The model “T” rotameters are of simple construction, employing conical glass tubes and fIoats for precise measurement of liquids or gases in process piping and within the limits described below.

Characteristics 

  • Wide range of capacities.
  • Scales graduated directly on the glass metering tubes or separate, attached laterally.
  • Floats and glass metering tubes are interchangeable with other rotameters of the same size.
  • Connections are NPT/BSP female threads, or also with flanges.
  • Packing glands have the same dimensions at either glass ends. This reduces the quantity of spare parts for stock.

Materials

  • Metering tubes: borosilicate glass.
  • Float: AISI 316 or 304 stainless steel and PTFE.
  • Packing materials: neoprene or PTFE and Viton1, subject to future consultation.[1].
  • Parts in contact with process fIuid: cast iron ASTM A48 CL.35 or stainless steel ASTM A744 Gr.CF8 and CF8M (AISI 304 and 306), PTFE and polypropylene, subject to future consultation.
  • Tie rod: carbon steel or AISI 304 or 316.
  • Scale: millimeter scale etched on glass for use together with flow calibration curves.

a) a) 1 to 10 for indirect reading for use with a factor tag provided.

b) separate scale attached laterally for direct reading in service conditions. 

Performance

  • industrial accuracy:
    • Approx. 2% of fuIl scale (ISA RP 16.1.2.3. specification 2.S.10)
    • Scale for direct flow reading (calibrated):

a) approx. 2% of instantaneous reading, (ISA RPI6 1.2.3. specification 2.R.20).

b)  approx. 1% accuracy of instantaneous reading (ISA RP 16.1.2.3. spec. I.R.20).

  • Reproductibility: within 0,5% of fuIl scale.
  • Rangeability: 10: 1.

DIMENSÕES PRINCIPAIS / MAIN DIMENSIONS

Example – 4T81104Z

Rotameter with 250mm nominal length, model “T”, with vertical inlet and outlet, size 1 1, 3/4″ diameter connections, without accessories.

Example 2 – 4T71306B01X12

Rotameter with 250mm nominal length, model “T”, with vertical inlet and outlet, size 13, 1.1/2″ diameter connections, with accessory: Inductalarm B01 models, flow alarm and aluminum protection housing.

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