PRODUCTION OF PRE-INSULATED PIPELINES +7 | 474 | 772-10-26 PRODUCT CATALOG ABOUT PRODUCTION SERVICES ARTICLES DOCUMENTATION CONTACTS Main page → Articles → UEC systems UEC SYSTEMS UEC systems Currently, only about 10-15% of the centralized heating pipelines in the CIS countries are laid with pre-insulated pipelines , and only about 30% of them are equipped with the Operational Remote Control System (SODK). These statistics indicate a low introduction of advanced technologies that increase the level of energy saving. The small use of pipelines equipped with UEC systems does not allow getting a full return on the very idea implemented in this design. One of the reasons for this is the information vacuum in the literature, available to a wide range of readers, describing the merits and advantages of such pipelines. In domestic and foreign literature, information about control systems for pre-insulated pipelines is presented mainly in scattered journal articles, manuals, manufacturers' catalogs and patent descriptions. All this, naturally, creates difficulties for familiarizing specialists with the properties and capabilities of SODK and significantly delays their practical application. The specialists of our company will answer all your questions about the use of UEC systems. Principle of operation and performance assessment of the control system Polyurethane foam , used as a thermal insulation material, has an almost infinite electrical resistance. The physical property of polyurethane foam , which consists in a decrease in the value of electrical resistance with an increase in humidity, for example, when water appears due to damage to the polyethylene shell or the metal pipe itself, serves as the basis for the operation of the UEC system. Evaluation of the performance of the SODK is carried out using a control and installation tester, by measuring the values of the insulation resistance of polyurethane foam between the metal pipe and the signal conductors, as well as by measuring the resistance values of the signal conductors of the pipeline. The standard value of the insulation resistance (Riz.) Is taken equal to 1 MΩ per 300 meters of signal conductors, and the standard value of the resistance of the conductors (Rpr.) Is considered equal to 0.015 Ohm per 1 meter of the signal wire. Composition of the UEC system The operational-remote control system is a special set of instruments and auxiliary equipment (which will hereinafter be referred to as elements of the UEC system) with the help of which the state of the pipeline is monitored. The exclusion of any element from the system violates its integrity and normative functionality. Half-urethane coated pipe 1 - signal conductor 2 - support - hub 3 - polyethylene sheath 4 - metal pipe 5 - polyurethane foam insulation back STEEL IN POLYURETHANE FOAM CAST IRON IN POLYURETHANE FOAM PLASTIC IN POLYURETHANE FOAM CUFFS PPU SHELLS PPU BOARDS VACANCIES An operator of filling machines, an electric welder is required read more NEW ARRIVALS 03/10/2014 To the attention of our clients! Reconstruction of the site design has been completed. The resource is fully functional and in test mode. read more Product Catalog About production Services Documentation Contacts Steel in polyurethane foam Cast iron in polyurethane foam Plastic in polyurethane foam Cuffs PPU shells PPU boards © 2013-2015 Polymer-L LLC PPU pipes - production of pre-insulated pipelines Industrial complex: 399260, Russia, Lipetsk region, Khlevnoe village, Dorozhnaya str., Building 1 Phone / Fax: +7 (474) 772-10-26 Email mail: info@penol.ru