REGULATING VALVE Russian patent published in 2005 - IPC

FIELD: manufacture of fittings.

SUBSTANCE: proposed valve has body with inlet, outlet and main holes and regulating member made in form of piston connected with rod; piston moves in main hole which is coaxial with it. Mounted in end bore of body coaxially to piston is permeable member made in form of ring consisting of several washers with diameter of inner hole equal to diameter of main hole. Said washers are provided with tight circular gasket whose diameter is equal to external diameter; these gaskets are laid in between washers; diameter of their holes is lesser than diameter of piston by value of interference of joint "piston-gasket hole". Washers have different porosity, average diameter of pores and hydraulic resistance. Average diameter of pores reduces in axial direction towards end bore of body. Washers are made from elastic or flexible material, metal-reinforced rubber, for example.

EFFECT: extended functional capabilities; facilitated procedure of manufacture.

3 cl, 1 dwg