Ventilation Instrumentation – Nanda Millar Company

Vane Anemometer Davis

admin — Mon, 18 Nov 2019 13:18:25 +0000

Minimum Order Quantity: 01 Piece(s)

Body Material	Mild Steel
Possible Measuring Wind Speed	200 to 10000 FPM ( 1.016 – 50.8 m/sec. )
Accumulated Air Reading	Upto 10000 Ft. ( 3048 m )
Useful Conversions	1 Ft./min = 0.00508 m/sec. 1 Cu. Ft./min = 1.7 m3/sec. NB
Corrosion Resistance	Yes

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Inclined Manometer

admin — Thu, 31 Oct 2019 11:14:51 +0000

‘NMC’ inclined water gauge is used for measurement of small pressures with great accuracy. It consists of a ‘U’ glass tube of uniform bore filled with coloured liquid. U- tube is mounted on a wooden frame. The frame can be locked in two positions.

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Assman Psychrometer

admin — Thu, 31 Oct 2019 11:01:05 +0000

This psychrometer has long been used as the standard wet & dry bulb psychrometer capable of measuring highly accurate humidity. Humidity of air can be precisely measured by this instrument. Two insulated type thermometers, as wet and dry bulbs, are located. By spring-wound, air movement is forced past the bulbs at a rate of about 3.5m/s to 6 m/s to ensure proper ventilation.

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Pit Water Gauge

admin — Thu, 31 Oct 2019 10:56:09 +0000

Improved ‘N MC’ Water Gauge comprise two no 6mm straight corning glass tubes terminating into a brass block with a connecting passage. One limb is open to atmosphere & other is connected to fan drift. A tap is provided to close the connection while taking reading. A scale with adjusting screw is mounted behind the glass tubes. A spirit level helps in keeping the instrument vertical.

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Kata Thermometer

admin — Thu, 31 Oct 2019 10:45:26 +0000

The Kata Thermometer :- The Kata Thermometer consists of an alcohol thermometer with a large bulb A 4 cm. long and 2 cm. In diameter and a stern 20 cm. long. graduated only at two points namely 38°C and 35°C It may be used for dry or wet. For wet Kata Cooling power reading the bulb Is first placed In hot water so that the liquid rises and partly fills the upper reservior C. It Is then exposed to the air.

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The Electronic Velometer

admin — Thu, 31 Oct 2019 10:29:01 +0000

The portable anemometer provides fast. ‘accurate reading, with digital readability and the convenience of a remote sensor separately
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Smoke Generator

admin — Thu, 31 Oct 2019 10:08:16 +0000

Smoke Generator consists of Glass tube containing granulated pumic stone saturated with anhydrous tin or titanium tatrachioride. Glass tube is fitted with a rubber aspirator bulb thro’ rubber tube at one end & the other end is in the form of a tip coyèred by a rubber cap.

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Ventilation Pressure Survey Set

admin — Thu, 31 Oct 2019 10:01:16 +0000

Select the Magnehelic gage for high accuracy – guaranteed within 2% of full scale. Using simple, frictionless Magnehelic movement, it quickly indicates low air or non-corrosive gas pressure – either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures. No manometer fluid to evaporate, freeze or cause toxic or leveling problems. It’s inexpensive, too.

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Whirling Hygro Meter

admin — Thu, 31 Oct 2019 09:51:36 +0000

‘NMC’ Whirling Hygrometer Consists of two thermometers with least count of 0.50 C and range 0-50 C and are mounted side by side in a plastic wooden frame.

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Portable Inclined Manometer

admin — Thu, 31 Oct 2019 09:47:58 +0000

Pitot readings are very small for the common range of air velocities. Ordinary U-tube manometers are not useful for measurement of gas velocities below 12 rn/s. For this,use of inclined tube manometer is suggested. These manometers are well-type with single limb indication. “NMC” Inclined Manometer can be swivelled in 4 positions- 1 in 20, 1 in 10, 1 in 5 & vertical (Approx) Maximum limit of pressure measurement is 250 mm wg.

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