In the installation of pressure reducing valves in a steam system, it is necessary to consider sufficiently about the various valves and piping around the pressure reducing valve. It becomes an important point in quality, productivity, and energy saving.
With taking advantage of the use and effect of pressure reduction, it is necessary to perform installation with higher reliability and higher controllability.
By adopting a diaphragm with a large taking pressure area as a main valve controlling part instead of a piston, it can react to a slight change of outlet side pressure sensitively.
Moreover, with the external detection system, highly precise pressure reducing is possible by exact perception of the outlet side pressure without influence of steam turbulence.
Due to high Cv value and outstanding controllability, this type is the most appropriate when more precise pressure reduction is necessary.
Moreover, with the original diaphragm case structure, great durability is realized by distributing equally the stress added to the diaphragm.
The most typical pressure reducing valve for steam is GP-1000 series.
Since it is the internal detection type which has the outlet side pressure sensing hole inside of the main body, piping work is easy.
Moreover, by adoption of the piston which holds the stable operation realized by two-points guide structure for a long period of time, flexibility is high, and it can be used for almost all uses as a pressure reducing valve for steam of 1.0 MPa or less.