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Diaphragm Pressure Gauge
The China Ningdian® Diaphragm pressure gauge commonly known as "chemical seal" gauge are designed and recommended to isolate the measuring system of a pressure gauge from corrosive, pasty or dangerous fluid depending on the viscosity, pressure, temperature, solidification of a particular process medium，Safety all units are manufactured to comply with EN 837-1.
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Electric Pressure Gauge
The China Ningdian® Electric pressure gauges that are provided by the professional supplier are widely used in petroleum, chemical, metallurgy, electric power, machinery and other industrial sectors or in the matching of electromechanical equipment to measure the pressure of various fluid media without explosion hazard. The electric contact pressure gauge can be used with corresponding electrical devices (such as relays and frequency converters) to automatically control and send letters (alarms) to the pressure system under test (control).
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Bimetal Thermometer
The China Ningdian® bimetal thermometer combines two metals with different linear expansion coefficients, and one end is fixed. When the temperature changes, the thermal expansion of the two metals is different, which drives the pointer to deflect to indicate the temperature. The temperature measurement range is -80~500C, which is suitable for temperature measurement when the industrial precision is not high. As a temperature sensing element, bimetal thermometer can also be used for automatic temperature control.
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Adjustable Angle Bimetal Thermometer
The China Ningdian® Adjustable angle bimetal thermometer includes a versatile case and stem that can be adjusted to almost any angle for easy viewing.The head can be rotated 360º and the stem positioning moves over 180º. The Ningdian® durable adjustable angle temperature gauges are rugged and the preferred method to measure temperature in the process, offshore, power, pharmaceutical, and chemical industries. The standard union connection is 1/2-14 NPT, but others are available.
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Gas Filled Thermometer
The China Ningdian® Gas Filled Thermometers are manufactured to the highest standard for a wide range of uses and may be fitted to almost any thermometer indicating appliction. Gas Filled Thermometers made in China are ideal for remote reading panel installations ,and can be provided with tube system length up to 100 feet .Being vapor actuated ,they are not subject to indicator error dut to ambient temperature variations along the tube system,and will give excellent reading both above and below ambient. Vapor instruments have progressively graduated scales and are best read in the upper of the temperature range.
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Gas Filled Thermometer With Capillary
The Ningdian® gas filled thermometer with capillary is also suitable for the transmission of the measured value via capillary, due to its helium filling. Such a capillary has an outer diameter of only 2 mm and an inner diameter of 0.1 to 0.2 mm. In the reaction to a temperature change, both dial thermometer types function in accordance with the expansion principle. But the rotation of the helix in bimetal thermometers can only react directly and without “detour” on the indication.
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