Stationary shut-off devices Home » Products » Stationary shut-off devices - Structural variants of the SOU - Technical parameters of SOU - Factory and operational tests of SOU - Interdepartmental tests of SDU - Possible locations for the installation of the LDS at the compressor station - - SOU with a staple shutter, end, with a hatch-manhole - SOU with a staple gate, through passage, with a hatch - manhole INTRODUCTION For a correct understanding of the technical purpose of stationary shut-off devices ( STD ), let us define the features that distinguish stationary shut-off devices as an independent class. At present, the SOU is understood as a device that provides: ABSOLUTE FLOW SHUTDOWN IN PIPELINES OR UNITS. Those. the technical term "CUT-OFF" is understood to mean "ABSOLUTE OVERLAPPING". Thus, SOUs are not a subdivision of the group of technical devices "ARMATURA", since the latter have a so-called "degree of tightness" and allow for leaks. The following features can be specified as the main technical differences of the SDA (see Fig. 1.): When closing the flow, a connection of the cavity located behind the working body with the atmosphere and / or with a special drainage system is provided (the volume of the latter and the method of connection with it guarantees the safety of the shutdown). Overlapping is carried out in ways with absolute sealing of the connector (hairpin connection, bayonet connection, etc.) It is possible to check the overlap It is possible to test the JMA connector without fail (for example, hydrotest the connector) The working body of the JMA during normal operation is remote from the influence of the working environment and can be accessed for control. Technical problems that can be solved by using the SDA: The use of JMA allows solving the following operational technical problems: Быстрое и надежное перекрытие патрубков сосудов, работающих под давлением, для безопасного проведения : гидравлических испытаний данных сосудов профилактических осмотров данных сосудов ремонтных огневых и газоопасных работ. Исключение повышенного давления при гидравлических испытаниях на запорные органы арматуры Исключение попадания воды после проведение гидроиспытаний сосудов в основной контур Экономия материальных средств за счет выполнения следующих дополнительных функций: компенсация температурных расширений в трубопроводах обеспечение доступа в качестве люка-лаза обеспечение осмотра в качестве смотрового люка механическая очистка потока газа Экономия расхода рабочей среды за счет применения герметичных СОУ (без потерь рабочей среды при перемещении рабочего органа ) или за счет обеспечения предварительного сброса рабочей среды в основной контур. Generalized constructive scheme of the SOU. Figure 2. a generalized design diagram of the JMA is presented , which conventionally includes all the main structural elements. print version up home Products Stationary shut-off devices Metal-graphite seals Graphite seals Stuffing box graphite seals Graphite Repair Kits Wheels for centrifugal pumps Equipment repairs Pneumatic nutrunners Reservoirs, containers and elements Wells High viscosity paste blower - SYRINGE - 700 Indicator supports, auto-adjustable, adjustable, traditional Related Products Avo-gas flushing. Installation "MUSSON". Documents activity Contacts About us Address: Nizhny Novgorod, Boulevard Mira, 17a, 3rd floor, room 18 Phones: (831) 2468230, 2468231, 2468232, 2280410 E-mail: Write a letter >> View location map >> NN website © Association SPECTR, 2006-2016 603086, Nizhny Novgorod, Mira Boulevard, 17a, 3rd floor, room 18 Graphite and metal-graphite seals Stationary shut-off devices Wheels for centrifugal pumps