HISAKA Glossary (for Heat Exchangers)

This is a glossary of terms that are found in
drawings and catalogs when using your HISAKA product.

D
DA gasket Installed to the D-Plate port hole.
(In some cases, it may be installed to the E-plate port hole.)
DB gasket Installed to the D-Plate port hole.
(In some cases, it may be installed to the E-plate port hole.)
Design pressure Maximum working pressure of the equipment
DP (Design Pressure)
Design temperature Maximum operating temperature of the equipment
DT (Design Temperature)
D gasket Installed to the D-Plate port hole.
(In some cases, it may be installed to the E-plate port hole.)
Diagonal flow Flow of fluid in a heat exchanger
-> Trapezoidal flow
Click here for details
Distance piece gasket General term for the string gasket that fills the gasket groove (non-wetted area) of the D-Plate or E-Plate.
Distribution Triangular area on a heat transfer plate that distributes fluids that flow in through the porthole to the heat transfer surface
Double-lined gasket plate (NX) One of the heat exchangers in the HISAKA lineup. A unique feature is its double-lined gasket structure.
Double seal Structure for preventing two fluid mixtures
DP Design pressure
D plate First heat transfer plate between the S, L, C, and E-Frame.
Drain pan Tray that collects drops of fluid from heat transfer plates during operation or maintenance
Dual wall plate Structure that layers two heat transfer plates to create a double structure, in order to prevent contamination by avoiding the mixing of two fluids, even if the heat transfer plates are damaged Click here for details