Ritter - Bellows-type Gas Flow Meters - BG-Series (Dry-Type) Get latest price

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The measure of Ritter bellows type gas meters works on the principle of displacement. The gas meters employ a twin chamber measuring unit with a deformable bellow within each chamber. Thus, a compulsory measurement of the gas flow is possible by periodically filling and emptying these chambers. The design of the measuring chamber is such that the measuring volume per cycle of the bellows is constant.

The major advantage and the superiority of volumetric gas meter (like Bellows type Gas Meters) over other measurement principles, which determine gas volume using secondary measurable variables such as speed, heat capacity, hot wire resistance or similar, is that the volume is directly measured. That means that the condition and the composition of the gas has no influence on the measurement accuracy.

Correcting factors which take into account gas type, temperature, humidity etc are therefore not necessary. It should be noted that with other, non volumetric measurement processes, the measurement accuracy given for that process can only be achieved if the correcting factors for the immediate condition of the gas are exactly known.

Why choose this product

• No maintenance needed
• No set-up prior to the measurement
• Easy to carry
• Don’t need a power supply (unless equipped with optional Pulse Generator)
• Can be used in the field as well without problems

Specifications

• The desired measurement range can be selected from among 6 magnitudes (types)
• 40 ltr/h to 160m³/h at a gas temperature ranging from -20° to +50°C
• Maximum overpressure of 50 - 500 mbar depending on the meter type
• Accuracy: +2%

Standard equipment:

• Twin-chamber measuring unit
• 8-digit totalizing counter
• large, one-needle dial
• magnetic coupling (between the measuring drum and counting mechanism)
• gas pipe connection: inch thread

Performance Data:

• Measuring accuracy: Approximately +1% at standard flow (exact value is stated in individual Calibration Certificate); or
• Measuring accuracy: Approximately +2% across the measurement range relative to calibration value at standard flow rate
• Temperature range: -20 to +50° Celsius
• No reverse flow direction
• Maximum gas inlet pressure (overpressure):

BG4, BG6: 300 mbar
BG10, BG16: 50 mbar
BG40, BG100: 500 mbar

Materials:

• Casing: zinc-coated steel sheet, powder-coated; BG4 - BG16 soldered / BG40 - BG100 screwed
• Measuring unit: tinplate
• Bellows (within measuring unit): textile-reinforced nitrile rubber (Perbunan)
• Rod linkage: BG4: polyamide; all others: polyamide/brass
• Slide gate: Bakelite

For further information about Gas Flow Meters visit Ross Brown Sales at http://www.rossbrownsales.com.au
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Use the IndustrySearch e-mail feature and one of the Ross Brown Sales team will respond to your enquiry directly.

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To contact Ross Brown Sales about Ritter Bellows-type Gas Flow Meters - BG-Series (Dry-Type) use Get a quote.