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NOSHOK 200 Series Steel Dry Dial Indicating Low Pressure Diaphragm Gauge with Back Mount, 2-1/2" Dial, +/-1.5% Accuracy, 0-100 oz/in² Pressure Range

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Specifications for this item
Number of Items
0-100 oz/in²
Material Type
Part Number
Temperature Range
-4/140  Degrees Fahrenheit
Outside Diameter
2-1/2  inches
Brand Name
Size Name
0-100 oz/in²
Manufacturer Series Number
Measurement Accuracy
Maximum Measurement
0-100 oz/in²
Style Name
Center Back Mount
System of Measurement

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Key Features

  • Brass wetted parts for measuring non-corrosive liquid and gas pressure
  • Circular dry dial is 2.5" (63mm) in diameter, and enclosed in a steel case for corrosion resistance
  • Measures pressures with single or dual scale in inch water column (WC), psi, or oz./square inch
  • Display accuracy is + or - 1.5% of full scale value (ASME B40.100 Grade A)
  • Lower mount or center back male connection with 1/4" NPT rate

Package Details

Shipping Weight: 0.4 pounds
Package Size: 2.88 x 2.75 x 2.75 inches

Product Description

The NoShok 200 series 2.5" (63 mm) pressure gauge has brass wetted parts, a dry circular dial enclosed in a steel case, a lower mount or center back male 1/4" NPT connection, and measures pressure with a single or dual scale with an accuracy of + or - 1.5%. The brass wetted parts are for measuring non-corrosive liquid and gas pressure. The black painted steel case provides corrosion resistance. The lens on the dry 2.5" dial is clear acrylic. The dial is white aluminum with black markings, is UV resistant, and has a black finished aluminum pointer. The gauge measures pressure with either a single or a dual scale in inch water column (WC), psi, or oz./square inch. The gauge is accurate to + or - 1.5% over the entire range of the gauge, American Society of Mechanical Engineers (ASME) B40.100 Grade A accuracy class. The male connection is mounted on the bottom or center back of the gauge and has a 1/4" NPT (National Pipe Thread) rate. The movement is brass and nickel-silver with highly polished bearing surfaces. The gauge has an ultra-sensitive copper alloy diaphragm capsule. The gauge operates in both fluctuating and static pressures up to 90% of the dial range. The ambient temperature for the gauge is 0 to 140 degrees F (-18 to 60 degrees C). The media temperature range is -4 to 140 degrees F (-20 to 60 degrees C). This pressure gauge is suitable for medical, biomedical, HVAC, gas distribution, filtration, burner and gas combustion service, and wastewater treatment applications.

Pressure gauges are instruments used to measure the pressure of a gas or liquid inside a vessel and, often, to help ensure the optimal amount of pressure for a given application. Pressure gauges can range from everyday instruments, such as those used to measure the air pressure in a car or bicycle tire, to highly accurate gauges used in mechanical and industrial processing. Most often, pressure gauges measure pressure relative to another reference. For instance, gauge pressure measures pressure relative to ambient air. An example of a pressure gauge measuring relative to ambient air is a tire pressure gauge or a blood pressure gauge. Differential pressure is the difference in pressure between two points, such as when measuring liquid flow along various points in a pipeline. An absolute pressure gauge measures pressure relative to a perfect vacuum, such as an atmospheric or barometric pressure gauge. All types of pressure gauges include either a male or a female mount to connect to the vessel where pressure is being measured, and display results on a dial with varying increments of measure across a given range.

NoShok manufactures temperature and pressure measurement instruments, including pressure gauges, transducers and indicators, level transmitters, temperature switches and transmitters, and bimetal thermometers. The company, founded in 1967, is headquartered in Berea, OH.

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