Preferably valve body (1) or valve seat (2) is of special steel and at least one movable part (3) is of a copper-containing metal. The valve is preferably a packed gland valve, a diaphragm valve or a bellows-type valve.
申请公布号
DE19746787(A1)
申请公布日期
1999.05.12
申请号
DE1997146787
申请日期
1997.10.23
申请人
MESSER GRIESHEIM GMBH, 65933 FRANKFURT, DE
发明人
PONGRAZ, JOHANN, 47259 DUISBURG, DE;ESCHWEY, MANFRED, DR., 40489 DUESSELDORF, DE
