Fluid controller

Details Fluid controller Fluid controller

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 7/16 (2006.01) F16K 7/14 (2006.01) F16K 25/00 (2006.01) F16K 41/10 (2006.01) F16K 41/12 (2006.01)

Patent

CA 2181532

Flaws in a fluid controller caused by nonmetallic inclusions in material during machining of a contact surface of a valve seat are prevented by forming the valve seat of corrosion-resistant high-cleanliness material. The valve seat of the fluid controller is formed from corrosion-resistant alloy with 0.05% or less cleanliness and containing in weight ratio 12.90 - 15.00% Ni, 16.50 - 18.00% Cr, 2.00 - 3.00% Mo, 0.02% or less C, 0.30% or less Si, 0.40% or less Mn, 0.03% or less P, 0.003% or less S, 0.25% or less Cu, and 0.01% or less Al. Fluid leakage is almost completely prevented (100%) by such a valve seat.

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