King Instrument 7430 / 7440 Series Rotameters

product id: 104099

Category: Flow Meters

Manufacturer: King Instrument

InstruHub is a leading supplier and reseller of King Instrument Flow Meters in Oman, and we ship to all major cities such as Muscat, Seeb, Salalah, Sohar


Features

  • Horizontal (7430) or vertical (7440) fitting orientation
  • 0.72 to 1800 cc/mn (Water)
    • 200°F (93°C) max (liquids)
  • 66 to 70000 cc/mn (Air)
    • 250°F (121°C) max (gases)
  • 65 or 150mm direct reading, detachable scale
    • ±6% full scale accuracy (65mm scale)
    • ±4% full scale accuracy (150mm scale)
  • 10:1 to 12-1/2:1 turndown (unless otherwise indicated)
  • 1% Repeatability
  • Maximum pressure depends on material
    • 200 psig (SS)
    • 130 psig (PVC)
    • 150 psig (PVDF)
  • 33°F to 125°F (1°C to 52°C) ambient temperature

The stainless steel King Instrument 7430 / 7440 series rotameter utilizes a float and tapered tube design. As a result, the King Instrument 7430 / 7440 series rotameters have longer and more linear scales, better pointer stability, and 40% greater accuracy than competitively priced products.

Both the 65mm and 150mm scaled models of the King Instrument 7430 / 7440 series rotameters feature borosilicate glass tubes and all stainless steel frames. They are available in either horizontal or vertical connections. Accuracy of the King Instrument 7430 / 7440 series rotameter is determined by the scale of the rotameter – the 65mm scale has an accuracy of ±6% of full scale flow and the 150mm scale has accuracy of ±4% of full scale flow.

The maximum temperature rating of the King Instrument 7430 / 7440 series rotameter is 250°F (121°C) when used in gas applications and 200°F (93°C) when used for liquids. The maximum pressure for 316L SS fittings is 200 psig, 130 psig for PVC fittings, and 150 psig for PVDF fittings.

Alarm Options for the King Instrument 7430 / 7440 Series Rotameter

  • Inductive Ring Sensor: Inductive ring sensors are designed to be used with a remote intrinsic safety barrier / switch isolator. These sensors are able to detect the metal float by producing an electromagnetic field within the ring. Ring sensors are available in either proximity or latching format for the King Instrument 7400 series rotameter.
  • Fiber Optic Sensor: The fiber optic sensor is housed in a junction box attached to the side of a King Instrument 7400 series rotameter. The sensor uses a pair of fiber optic cables, an emitter, and receiver to transmit the light across the metering tube and back to the sensor. If the light beam is blocked by the float, the sensor output will change. The sensor provides a transistor output that switches the common or negative voltage (NPN) or positive voltage (PNP) to the load. The fiber optic sensor is compatible with all King Instrument 7400 series rotameter float types.

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