It is an object to provide a flow control valve in which corrosion is less likely to occur in the vicinity of a radial step portion in a gas passage of a housing and to provide a method for manufacturing the same. A flow control valve 1 includes: a housing...

A butterfly valve (12), preferably for a blow off circuit (9) of a gas turbine plant (1), is provided with: a supporting ring (18), which is provided with an inner perimeter edge (25) defining a fluid flow section (27), and with an annular seat (29) arrang...

A flow rate control valve 1 comprises a first sleeve 4 and a second sleeve 5 fitted into an inner periphery of a housing 3. The both sleeves 4 and 5 have inner end faces 4d and 5d which are disposed in abutment against each other while being displaced from...

An exhaust gas purifying apparatus for an internal combustion engine with a turbocharger is provided with an introduction port for EGR gas disposed upstream of a compressor and a throttle valve disposed upstream of the introduction port, and comprised of a...