Item Name: Dwyer® Rate-Master® Flowmeter RMB-52-SSV 3% Acc 5-50 SCFH air SS Valve PC Body Description: The Dwyer Rate-Master series RMB flowmeter is a 5" scale air flow meter with 1/4" female NPT inlet and outlet connections for inline monitoring and measuring scfh of air flow with an accuracy of + or - 3% of full scale (+ or - 5% of full scale for RMB-49 models). An integral flow guide stabilizes the float throughout the range for consistent readings. The flowmeter is made of injection molded polycarbonate around a precision tapered pin to maintain calibration, resist breakage, and provide a clear view of the scale. The body is mounted to a stainless steel back bone with welded pipe thread inserts to absorb piping torque during installation. The scale is epoxy-coated brushed aluminum with black graduations marked along both sides of the flow tube for distinct readings. Models are available with a brass or stainless steel metering valve for precise adjustment of air flow. Hardware is included for panel or surface mounting. This flowmeter is commonly used for measuring air flow in medical equipment, air samplers, gas analyzers, pollution monitors, chemical injectors, and cabinet purging equipment, among other devices. Specifications Scale length5"Accuracy+ or - 3% of full scale (+ or - 5% of full scale for RMB-49 models)Process connections1/4" female NPT inlet and outletPressure rating100 psi/6.9 barTemperature rating54 degrees C/130 degrees FWetted materialsBody: polycarbonate; O-ring: Buna-N and neoprene; metal parts: stainless steel or brass (for models with brass valve); float (varies by range): black glass, nickel/copper alloy, stainless steel, or tungsten carbideDimensions (H x W x D)22.23 x 3.81 x 4.45 mm/8-3/4 x 1-1/2 x 1-3/4 inchesWeight368.5 g/13 oz.H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.Anemometers, also called wind meters, measure air velocity and are most commonly used for weather monitoring to determine wind speed and for HVAC applications to determine air flow within ducts. In addition to air velocity, anemometers may measure wind direction, air pressure, air flow volume, air temperature, humidity, light, and other properties. The most common types of anemometer are cup, vane, hot-wire, and Pitot tube. Cup and vane anemometers calculate air velocity based on the number of rotations of the cups or vane. Hot-wire anemometers calculate air velocity by measuring the change in electrical resistance as air flow cools a heated wire. Pitot tube anemometers measure air pressure within a tube and calculate air velocity based on the difference in pressure between the air inside and outside of the tube. Many anemometers have digital readouts and can display air velocity readings in different units of measure, such as meters per second (m/s), feet per minute (ft./min. or fpm), knots, miles per hour (mph), and kilometers per hour (km/h).Dwyer Instruments manufactures measurement and control instruments, including pressure gauges, flow meters, level instrumentation, temperature instrumentation, and air quality monitors. The company, founded in 1931, is headquartered in Michigan City, IN. What's in the Box? Dwyer Rate-Master series RMB flowmeter Mounting hardware Instructions MANUFACTURER DIRECT | Temperature Limit: 130°F (54°C). | Pressure Limit: 100 psi (6.9 bar). | Process Connection: 1/4" female NPT. | Service: Compatible gases and liquids. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Diamond Home strives to provide excellent customer service, fast delivery, and high quality products. 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