Diaphragm valve

Details Diaphragm valve Diaphragm valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 7/16 (2006.01) B23P 15/00 (2006.01) C22C 19/05 (2006.01) C22F 1/10 (2006.01) F16K 41/12 (2006.01)

Patent

CA 2179563

In a diaphragm valve designed to seal with a metal diaphragm, corrosion resistance and strength of the diaphragm are improved by forming the diaphragm from a thin alloy sheet containing, by weight, 12.5-14.5% Mo, 20.0-22.5% Cr, 2.0-6% Fe, 2.5-3.5% W, 2.5% or less Co, 0.015% or less C, 0.08% or less Si, 0.50% or less Mn, 0.35% or less V, 0.02% or less P, 0.02% or less S and the remainder Ni. The thin alloy sheet is cold-rolled after annealing to enhance the strength of the diaphragm.

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