FIELD: valving systems. ^ SUBSTANCE: control valve comprises housing with inlet and outlet openings and valving member connected with the rod and is made of a spiral flexible member. The spiral member is made of a tension spring made of a shaped article whose surface is made of a Z-shaped sealing surface. The spiral member is mounted for permitting axial movement inside the axial opening in the seat-bushing. The seat-bushing is perforated with at least one shaped opening and is provided with sealing coating mounted on the sealing surfaces that are in a contact with the spiral member and housing. The spiral member is provided with sealing coating applied on the sealing surfaces of the turns of the spiral member. The seat-bushing and spiral member are made of a corrosion protection material. ^ EFFECT: simplified design and expanded functional capabilities. ^ 4 dwg
申请公布号
RU2303187(C2)
申请公布日期
2007.07.20
申请号
RU20050125887
申请日期
2005.08.15
申请人
ANDREEV ALEKSANDR PAVLOVICH;PANCHEKHA JURIJ STEPANOVICH;ERMOLAEV VLADIMIR VIKTOROVICH;PANCHEKHA GRIGORIJ JUR'EVICH
发明人
ANDREEV ALEKSANDR PAVLOVICH;PANCHEKHA JURIJ STEPANOVICH;ERMOLAEV VLADIMIR VIKTOROVICH;PANCHEKHA GRIGORIJ JUR'EVICH