FIELD: machine building.
SUBSTANCE: valve port comprises vale body, bearing valve port defining channel converging from inlet to outlet. Convergent channel minimizes effects of boundary layer separation to maximise port capacity. Said channel may be formed inside solid part to be screwed in valve body, or in cartridge fitted in valve body to slide and to be screwed therein. Fluid control device comprises also diaphragm drive furnished with control component arranged inside valve body to control fluid flow in said body.
EFFECT: ease of use maximised capacity at preset outlet pressure.
23 cl, 5 dwg
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