For the nominal pressure PN 2 or less. 5 mpa, working temperature is minus 30 ~ 300 ℃ water, steam, air and oil such as medium of malleable cast iron valve, the selection of the major parts material as shown in the table 1: 'table 1' malleable cast iron valve material selection table parts name name brand standards, Industrial Valves body, valve cover, a malleable iron KTH300 - opening and closing 06年,KTH330 - 08年,KTH350 - 10 gb / T 9440 - 1998 1 cr13 chromium stainless steel stem, shaft, 2 cr13, cr13gb/T 1220-3 Aluminum bronze QA19-1992 2、QA19- 4 gb / T 4423 - Manganese brass HMn58-1992 2 gb / T 4423 - The axle housing cast manganese brass ZCuZn38Mn2Pb2GB/T 1992-1176 1987 aluminum bronze ZCuA19Mn2, ZCuA19Fe4Ni4Mn2 rocker carbon cast steel WCA, WCB, WCCGB/T - 12229 1989 quality carbon steel 20, 25, gb/T 699-35 1999 1 cr13 chromium stainless steel cylinder, cr13gb/T 1220-2 Piston casting aluminium brass ZCuZn25A16Fe3Mn3GB/T 1176-1992 Chromium stainless steel 2 cr13, 3 cr13gb 1987 / T - 1220 1992 diaphragm tin brass QSn6. 5 - 0. 1 gb / T 14956 - Beryllium bronze QBe2GB/T 14596-1993 1 cr18ni9 1993 austenitic stainless steel, cr18ni9tigb/T 4237-1 Spring spring steel 50 crvagb/T 1222-1992 199260 60 si2mn, 1 cr18ni9 si2mna float austenitic stainless steel, 1 cr18ni9ti cr18ni9tigb/T 42370, 1 1 cr18ni9 cr17ni13mo2ti screen pack, 1 cr18ni9ti seat, opening and closing the sealing surface of aluminum brass ZCuZn25A16Fe3Mn3GB/T - 1176 1987 cast manganese brass ZCuZn38Mn2Pb2 ZCuA19Mn2, ZCuA19Fe4Ni4Mn2 1 cr13 stainless steel, cast aluminum bronze 2 cr13, 1 cr18ni9, cr18ni9tigb/T 1220-1 Ptfe SFB - 1992 1、SFB- 2、SFB- 3 hg2 - 534SFBN- 1、SFBN- 2、SFBN- 3 hg2 - 535 rubber - - Stem nut cast aluminum bronze ZQA19 - 2、ZQA19- 4 gb / T 1176 - 1987 cast manganese brass ZCuZn38Mn2Pb2 aluminum brass ZCuZn25A16Fe3Mn3 filler ptfe SFT - 1平米, 2平米, 3平米, 4HG2- Corrosion asbestos - 538 - Rubber - - Ptfe asbestos rope - - Flexible graphite - - The handwheel malleable iron KTH330 - 08年,KTH350 - 10 gb / T 9440 - Nodular cast iron QT400-1988 15日,QT450 - 10 gb / T 12227 - This paper keyword search: 1989 more technical articles Industrial Valves product supply information
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