Instrument fittings, as their name suggests, are highly accurate; This means that they are very meticulous in their work. These connections have a very high precision of measurement. They operate with the lowest error rate mode.
What is a precision instrument?
In general, precision instruments include equipment that can be used to measure quantity. These physical quantities need accurate measurement and include pressure, surface, temperature, volume, flow, etc. in a tank or pipe. In general, the control and measurement of these parameters, as well as their registration in industrial projects, is the responsibility of precision instruments; Like what happens in the water meter, gas meter, etc.
These tools are divided into three main categories, the first category being transmitters. This group is responsible for the basic role of data transfer. This information is sent as a signal. The second category is the controllers that are responsible for controlling the humidity, pressure and temperature. The last category is the displayers, which are called indicators in specialized terms. This category is responsible for showing the data; such as thermometers, pressure gauges, etc.
Instrument connections are actually a part of the instrument that joins these facilities or connects them to each other. There are a group of instrumentation equipment or its connections that are used in various large industries such as petrochemicals. These instruments are used to measure pressure in tanks or its temperature, and the accuracy of their measurements in industries is many times higher than for household and other normal uses.
Familiarity with precision instrument connections
Instrument connections are one of the most important topics in the field of instrument equipment. These connections are a special type of connections that are used in the transfer of fluids, laboratory equipment and equipment related to municipal and household fluids.
Also, this equipment is used to a significant extent in the transfer of pure and ultra-pure gases. These laboratory gas control systems and instruments usually use steel or brass piping and fittings.
The important points that must be taken into account when using precision instrument connections are high physical and chemical resistance to material, pressure and temperature, as well as the use of the most important features of precision instrument connections, i.e. the same high accuracy in Measuring the parts and mounting and fitting them together to prevent leakage in any way. The last thing is a point that should be taken into account when choosing instrumentation connections; Because these equipments are used in high pure or super pure pressures.
The most important thing about instrument fittings is that these fittings are closed on the tubes and not the pipes. The reason is that the tubes cannot be connected to other equipment and tools in the usual ways; Because the tubes are not threaded due to the small thickness in the wall area, and as a result, the tubes and fittings cannot be mounted on the tubes by the usual screw method. This is where instrumentation connections come into play; Because the tubes must be connected to other points by them.
Among the precision instrument connection equipment, the following can be mentioned:
Types of interfaces
tees
the knee
All types of valves and valves
Types of manifolds
Types of filters
Pipes and tubes
In terms of the type of application, precision instrument connections are also divided into two general categories, which are as follows:
Connector: These connections are used for pipe and tube connections in a gear way.
Union: This type of instrument connection is used to connect the tube to the tube.
Among other categories, the most widely used are pressure instrumentation connections. Pressure instrumentation fittings are fittings that have a clamp or ring to connect tubes together or other equipment. This category of precision instrument connections consists of three parts: body, ring or fastener and nut.
In the manufacture of instrumentation fittings, the most widely used raw materials are carbon steel, stainless steel, cast iron, aluminum, copper, alloy, carbon steel, stainless steel, etc. Fittings, as mentioned, are widely used in industry and play an important role among equipment. The type of equipment to which the instrumentation connections are to be connected is one of the important features that must be taken into account; For example, some of these equipments must use connectors that have an internal layer and may be different in quality from all other connectors; These joints are called coated joints. However, fittings are usually made of the same material as the pipe or equipment itself.
The size of fittings of precision instruments
The size commonly used in instrument fittings consists of a range. This size range is limited to the size defined below:
1.6 inches
1.8 inches
3.16 inches
1.4 inches
5.16 inches
3.8 inches
1.2 inches
5.8 inches
3.4 inches
7.8 inches
1 inch
1.1/14 inches
1.1/2 inches
2 inches
The use of precision instrument fittings is one of the most important equipment discussions in the fluid sector due to their high accuracy in fitting. These connections have doubled their importance due to their precise use and variety in the material and type of connection that ensures no leakage. Also, flexibility is one of the other features that make them usable in various industries, including precision instruments and various fluid transfer systems.
Due to the ever-increasing progress of industries in the country, the need for related equipment has doubled, and therefore these equipments are more detailed every day. The importance mentioned in these industries makes the importance of these equipments increase and places the provision of these equipments in the first stage. We are proud to play an important role in this cycle.
One of the points that you should pay attention to when buying is the type of product, as it is possible to sell the wrong material in the market for more profit. For example, 304 steel is used instead of 316, which has a large price difference and is similar in appearance, and the customer does not understand. For this reason, it is better to buy from reputable brands with a certificate or perform a chemical analysis test. Of course, there are fake famous foreign brands in the market, so it should be procured from reliable sellers or, considering the high quality of Iranian products in this type of product, it must be procured from reliable Iranian manufacturers who are members of the oil company’s vendor list.
Parker and Hylok brands are among the best foreign products and APJ brand is one of the best domestic brands produced by Alborz Part Jahan Company.