Technical Designations

There is a considerable variety of steel pipes and on top, you think, what is unreal is difficult to understand all their guests, and other special kinds of signs, but it is not. Let's try to sort out once and for all in this complex issue. There are a small number of categories of pipes and they are classified according to the method of production. A cast – made in special machines for the casting of steel pipes. Two pipes are manufactured from sheet steel, with further giving them the desired shape and weld on a joint – welded pipes.

3 Seamless – made a variety of drawing and rolling and extrusion of round billet. In turn, welded divided by production, to electric and cold. A cold-rolled seamless pipes are manufactured and hot-way. Further on what kind of steel pipe is shared by the nomenclature. The following are steel tubes that are often produced in the workplace.

Tubes for general and special purpose: Tubes for general and special purpose are divided into hot, hot and Welded Tubes profile: Profile pipes distinguish rectangular, flat-oval, square and other species. Pipes for drilling, fastening and operating wells Pipes for drilling, fastening and operating wells is divided into pump and compression, drilling, casing and exploration. Pipes and cast iron or steel pipes and cast iron can be divided into iron and steel. In addition to these there are steel pipes of different alloys of rare and nonferrous metal bearing, boiler. State standard defines the technical requirements and assortment of pipes, such as drill pipe with upset ends and couplings are determined by GOST 631-75. That is state standards (GOST) determines the size, steel and other regulatory value in the production of steel pipe. Approached all the time to consider an example: 102h8 tube station. 15CrMo drill with upset ends and couplings Ghost 631-75 102 is the outer diameter in mm, 8 is the wall thickness in mm, art. 15CrMo this brand of steel used in the manufacture of pipes. At the end of the state standard GOST 631-75, which sets the assortment and technical requirements fabrication of the pipe. Now you know how different steel pipes, which mean all the names in the notation, and you should not show difficulty in reading the technical names.


Neither company engaged in mining and processing of oil and gas, no oil pumping station oil pipelines, gas compressor station and pipeline, tank farm, as well as any other enterprise chemical industry (chemical plant, paint manufacturing, etc.), loading dock and marine terminals can not do in their work without a system for controlling the gas content of combustible and toxic gases. And here longer enough simply fire alarm. Since conventional smoke detectors react to the presence of smoke in an enclosed space, heat detectors will give an alarm of fire alarm systems, if will fix exceeding a certain temperature. But what if you want to control the level of gas concentration at various sites? After fire detectors can not warn themselves of such hazards, as fumes, or the presence of alcohol or vapor in the air. In order to continuously measure the level of gas contamination at the site of the alleged occurrence of vapors of flammable gases, oil and its products, and alcohol use analyzers (instrumentation).

Such devices can be used independently and together with the gas-analyzing systems. They measure the concentration of harmful substances and produce a unified signal output and digital form through the communication channel. By gauging devices include devices SGAES-TG and SGAES-HT, instrumentation, instrumentation and control systems. With these kinds of systems, control and measure the level of gas contamination in locations where of vapors of oil, flammable and toxic gases and hydrocarbons and other harmful substances. The operating principle of instrumentation is as follows: gas atmosphere selectively absorbs electromagnetic radiation, and devices continuously measure the intensity of infrared radiation, which pass through a medium with the measured gas. New advances in electronics make it possible to use special algorithms to handle electrical signals, which in turn increases sensitivity and reduces the likelihood of false triggering sensors that control the level of gas contamination. Sensors for monitoring combustible and toxic gas concentration Gas control the level of gas concentration at specific points in the site at any distance. In the case of exceeding the level of gas concentration system issues a warning and an alarm and starts program the automatic protection of all equipment fuel and energy complex. Guarantee the security of your company will be the right choice of equipment to be sure meet state standards and established itself as a reliable fire-fighting equipment.

Technical Regulations

What is a certificate of conformity GOST R? Certificate of Compliance – this permit, also called as a quality certificate, the certificate of State Standard, the customs certificate, a certificate GOST R and others, issued by the rules of certification systems in order to confirm the suitability of the certified products (services) the requirements applicable in the territory of the Russian Federation standards and norms. CONFIRMATION CONFORMITY OF GOODS BY ANY standards and documents specified in the certificate? Of course, all familiar GOST, GOST R, GOST R IEC, ISO, and more recently in conformity with technical regulations, which are introduced gradually replace the state standards and SNIP. Yes, there is another way to confirm compliance with the requirements of Technical Specifications (TU), a method commonly used for confirmation of voluntary certification of products. RELATIONSHIP AND HOW LONG certificate of conformity? The certificate of conformity GOST R is issued by an accredited certification body for a period of 1. At Sotheby’s Art Auction you will find additional information. 2.

or 3 years for continuous product certification, and therefore no validity to quantity of products supplied under the contract or invoice, the latter most often applies to foreign supplies of goods to Russia. What is obligatory and voluntary certification? Certification of products (services) can be both mandatory and voluntary, so for example, "yellow certificate" – issued by certification of products, which are subject to mandatory conformity assessment in accordance with the requirements of applicable laws and nomenclature. respectively "blue certificate" issued for the products in respect of which no law provides for mandatory certification, the latter form certification is often used by large business representatives and producers in order to confirm compliance with the requirements of their product specifications and other additional guests, not nomenclature provided for mandatory certification.