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Products - Anaesthesia Flowmeter - Two Tube

Flowmeter (Rotameter) consist of housing and a set of calibration glass tube with bobbin float. Calibration tube can be provided in a combinations of (O2+N2O) or customers requirement.

The flows control is obtained by needle valves which can be easily distinguished from one another by touch & colour. Easy to read large size scales with fluorescent illumination allow inside bobbins to be accurately read.

Description:
The gas flowmeter consists of two flowmeter tubes assembled together to work in parallel from two separate sources of gas supply and discharge through a single outlet.

Control Valve: At inlet on the base of the front side of the instrument.

Inlet Connection: At back, 7/16 inch UNF and 1/2 inch UNF (for O2 & N2O respectively), threaded male end.

Outlet Connection: Female nipple end at top right side of the frame.

Material
Matering tube Borosilicate Glass OD 15 mm Length 9"long.
Float                 Aluminium (Anodised Red for O2 & Blue for N2O)
Float stopper    Top/Bottom, Plastic
Frame              Aluminium (Powder coated)
End Connection Brass (chromium plated)
Control Valve    Brass (chromium plated)
Knob for control valve ABS moulded
Front cover Transparent Acrylic
Back cover As and when required or if ordered, luminous sheet
Packing Materials Neoprene rubber
Screws and nuts Brass (Chromium plated)

Calibration
The flowmeters are calibrated ar 20°C and 760 mm of Hg (Barometric pressure)
Accuracy                 The accuracy of calibration shall be within the limits of variation of ± 5% of scale upto 10 L/M and 2% of scale for remaining range.
Scale Length 5.5 inch ±0.25 inch

Dimensions
The overall dimensions of the flowmeters shall generally confirm to our standard diagram. (Changes may be incorporated to suit customer's specific requirements)

Test
Visual The flowmeters are visually examined for any damage, cracks, missing parts, defects or discrepancy.
Pressure The gas flowmeters can withstand air flow pressure at 20psig, and the control valve at 90 psig without any leak.
Calibration The calibration of the flowmeter is checked against standard precision flowmeter and does not vary by more than 2 – 5%.
The flowmeters conform to Indian Standards specifications for continuous Flow Inhalation Anaesthetic Apparatus (Anaesthesia machine) for Use with Humans, i.e. ISO 5358 -1980.

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