Line Stop Fittings of FS Type

Line Stop Fittings of FS Type

Catalog sheet: 5.1-3

Line stop fittings FS are steel fittings designed for closing the flow of medium, or for realization of bypass on the pipes where fittings are mounted with welded joints. There is an outside thread in the upper part of the shaped piece body designed for connection of a drilling/stoppling set, and there is an inside thread for a closing stopper. In the lower part of the body, there is a split sleeve, the inner diameter of which is identical to the outside diameter of the pipe to be closed. After proper installation, the sleeve reinforces the pipeline, the strength of which is affected by drilling in. As a standard, the shaped pieces FS are supplied with a split sleeve and a closing stopper with an external or internal square end and a sealing O-ring. The stopper and the upper part of the shaped piece body have been adjusted for possible circumferential sealing weld. Secondary sealing may also be made through installation of covering lid FV (following 5.1-4 hereof).

Diameter of the pipe to be closed:
- steel pipe DN/ID 20 up to 50 mm (3/4“up to 2“)
- outside diameter 26,9 up to 60,3 mm
(depending on type of the shaped piece)
Media:
Natural gas, non-aggressive gas, other media should be consulted
Maximum pressure of medium in the pipe to be closed:
up to 16 bar
Material of the shaped piece:
Steel part: steel properties in accordance with ČSN EN 1028-1 and ČSN EN 10208-2
Sealing components: EPDM rubber with properties in accordance with ČSN EN 549
Maximum diameter of the drilled hole:
Ø 20 up to 51 mm (depending on type of the shaped piece)