2 Tube Rotameter

Product Details :

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.