Pressure gauges are special instruments that measure pressure. Today there are a large number of them. There are manometers of low as well as high pressure. Temperature scale models are classified as thermometers. These devices are used in many areas. First of all, they are designed to study various natural processes. They also help in determining the pressure of technical devices. Each model has its own accuracy class.
Deformation gauge device
In the center, the overpressure pressure gauge has a tubular spring. Nearby are the silons that interact with it. There are also membranes in the device. They come in various forms. The most common are flat as well as corrugated membranes. For them, a special box is provided in the manometer. The sensitivity of the device in this case depends on the stiffness of the spring. The body of the pressure gauges can be made of different materials.
What does a mechanical pressure gauge consist of?
The device of mechanical pressure gauges is quite simple. The spring in this unit is single-turn. It interacts with the holder, which is located under it. A small diameter lead is also installed in the pressure gauge. It is necessary for fixing the gear sector. It is attached to the arrow, which shows the actual pressure.
The difference between electrical pressure gauges
Inside, electrical water pressure gauges have a special leash. It interacts with the arrow of the device. In the lower and upper part of the device are electrical contacts. When the pressure is high, the circuit is open. If the indicator is included in the operating range of the pressure gauge, then the alarm system through the arrow shows the deviation. For positional regulation, a special relay is provided in the network.
Bellows Type Gauges
A block is hidden under the bellows housing. Above it is silicon organic liquid. A working bellows is installed under the unit, which is in contact with the glass. He is always stationary. Additionally, a lever is provided in the pressure gauge, which is connected to the central axis. Rubber rings are located on the corrugation. The internal stem operates in the device using valves. They are of two types (locking and egalitarian).
Diaphragm pressure gauges
At the center of the membrane pressure gauges is a very complex leverage. At the same time, an axis is provided at the bottom of the device. It connects to the arrow, which shows the pressure. At the top of the pressure gauge there is a membrane box. In addition, under the fitting there is a corrector, which is hidden behind the profile scale.
Devices "DM2010"
These pressure gauges, the technical specifications are as follows: accuracy class is 1.5, the range of readings is in the region from 0 to 0.25 MPa, the voltage in the AC circuit is 27 A. The operating temperature is in the range from -50 to +60 degrees. The average weight of the pressure gauge is 0.8 kg. The DC circuit indicator fluctuates around 110 A.
Characteristics of manometers "MP50"
These electronic pressure gauges are used to determine excess water pressure. They can only be used in a non-crystallizing environment. The diameter of these devices are different. They are mainly available in sizes from 50 to 160 mm. Accuracy class for them is 2.5. The measurement limits are from 0.1 to 25 MPa. Their design is standard with a fitting.
Water pressure gauges are available exclusively from brass with a diameter of 1.5 mm. The measuring element consists of a copper alloy. The springs in these manometers are of two types (Bourdon and multi-turn). The dial of this device consists of polystyrene. However, some manufacturers produce it from a copper alloy. As a rule, the scale is provided in black, and the arrow is white. The body of the device is made of steel. The glass is polymer. The rim of this pressure gauge (electronic) is steel, which is painted black.
Manometers "MP63"
These pressure gauges, the technical specifications are as follows: the diameter of the device is 50 mm, the accuracy class is 1.5, and the measurement limits are from 0.1 to 40 MPa. Its execution is standard and provides for a fitting. As a rule, it is installed radial type. However, in some cases, an axial fitting is located in the device. It consists entirely of brass. The spring in the pressure gauge is made of copper. In turn, the dial consists of aluminum. It is always painted only black. The arrow is standard white. The pressure gauge body is completely steel. In this case, the glass is installed polymer. The bezel in this pressure gauge is made of plastic and painted black.
Models "MP2-UV"
This pressure gauge is designed to measure water pressure . The accuracy class provides 2.5. Degree of protection - IP40 series. Case diameter is 60 mm. This pressure gauge can last 10 years. Its mass is 0.15 kg. The case of the device consists of steel. It can be used at temperatures from -50 to +60 degrees. Glass in this model is organic.
The fitting in the pressure gauge is made of bronze. The spring is installed tubular. The tribo-sector mechanism is made of bronze. In some cases, brass or stainless steel is used. The dial is aluminum and is painted white. The fitting is usually installed radial type. However, in some cases, it stands without a flange. The central axis fitting can also be installed without it.
Manometers "MPV3-UV"
These pressure gauges, the technical specifications are as follows: the nozzle has a thread of 1.5 mm, an accuracy class of 2, and a degree of protection of the IP40 series. The mass of this device is 0.5 kg. This model is able to serve for about 10 years. Case diameter is 100 mm. This device can be used at temperatures ranging from -50 to +50 degrees. The case is installed very durable and can withstand heavy loads. It is produced entirely from steel.
Glass is installed technical. The fitting in the pressure gauge is made of bronze. The spring is mainly produced in a tubular form. It also consists entirely of bronze. Tribo-sector mechanisms are steel or brass. The dials are made of aluminum alloy. Their color is always white. Fittings are available only radial type. In some cases, they are available without a rear flange.
Characteristics of the model "VP4-UV"
This model is intended for measuring excess air pressure in the range from 0 to 40 MPa. Accuracy class - 1.5. In this case, the degree of protection provided by the standard "IP40". These air pressure gauges can be used at ambient temperatures from -50 to +60 degrees. The case diameter is as much as 150 mm. The average manometer life is 10 years. The case is made of steel and is very durable.
In addition, technical glass in the device should be noted. The tubular spring together with the fitting are made of bronze. The dials are available in white only. They are made of aluminum alloy. Eccentric axial fittings are always mounted without flange.
Parameters of the DV2030 manometer
This model is designed to measure fuel pressure in the range from - 30 to 30 MPa. The thread of the nozzle is 1.5 mm. The pressure gauge can be used at a temperature of -50 degrees. Accuracy class is 2. Degree of protection - IP30 series. The case of this device is exactly 100 mm in diameter. The service life of the pressure gauge is 8 years. Moreover, its mass is 0.6 kg.
Separately, it is worth mentioning the durable case, which is made of steel. Glass manufacturers make organic. The spring is available only in tubular type. It is made, as well as fittings, of bronze. The dial is white. The sector mechanism consists entirely of bronze. In some cases, brass and steel are used. Contact groups are standard. At the same time, this fuel pressure gauge is equipped with a magnetic preload. Fittings are used only radial type. All of them are installed in the device without a flange.
Model "DM2005"
These pressure gauges are designed to measure gas pressure. At the same time, they are equipped with fittings of a connecting type. Their size is exactly 10 mm. The accuracy class of the device is 1.5. Manometers with a case diameter of 150 mm are available. The protection system is installed in the IP30 series. These devices weigh 0.9 kg each. At the same time, they are able to serve for about 9 years. In general, their case is quite durable.
Glasses are of organic type. The fitting and spring in the device are made of bronze. The dial of these gas pressure gauges are of aluminum alloy. It is painted white. Radial fittings, as a rule, are not equipped with flanges. However, there are models with them. A contact group is provided as standard. In this case, magnetic preload is available.
What is the difference between "DA2005"?
The thread in this gauge is metric by default. The maximum pressure of the device can withstand 30 MPa. The model can be operated even at a temperature of - 60 degrees. The accuracy class is quite high and is 1.5. The protection system is standard. The case is available with a diameter of not more than 150 mm.
The average service life is 10 years. The manometer weighs as much as 0.9 kg. The case itself is made of steel and is not afraid of minor mechanical damage. The fitting in this model is of radial type. There are devices with and without a flange. Contact groups are set only standard. Magnetic preload, as a rule, is available. The dial material is aluminum alloy. Separately, mention should be made of the tribo-sector mechanism. It in the manometer consists of bronze. Steel, as well as analogs made of brass are rare. Glass is available only organic type.
Characteristics "DA8010"
This high pressure gauge is available with a special scale. In this case, the limiting values are maintained at the level of 10 MPa. In addition, it should be noted that the damper is provided in the device. The rim in the device is made of steel. It is usually painted black. Glass is installed only technical. The entire body of the pressure gauge is painted black. The dial is made of polystyrene. The arrow is white, and the scale is black. The Bourdon spring acts as a measuring element. It consists entirely of brass. In some cases, pressure gauges are made with a multi-coil spring. Fittings are in a radial device, as well as a central-axial type. All of them are made of brass. The accuracy class of this pressure gauge is 1.5.
Pressure gauge "DM2020"
These pressure gauges, the technical specifications have the following: the range of readings ranges from 0 to 20 MPa, the voltage in the AC circuit is 110 A. The operating temperature of the device is from -50 to +50 degrees. The weight of the pressure gauge is 0.7 kg. Accuracy class 2 is provided. In the DC system , voltage is maintained at around 36 A. The degree of protection is IP40.
This manometer will last about 10 years. The spring is mounted choke type. It is made of bronze. The sector mechanism is made entirely of brass. Among other things, it should be noted a convenient dial. It is painted black, and the arrow is white. Glass in the model is technical. The fitting is installed with a special thread of 1.5. Pressure gauge options come with a flange, as well as without it.