Title:
VALVE
Document Type and Number:
Japanese Patent JP2014145381
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a valve which can prevent a crack and the deformation of a body by reducing stress generated by careless and excessive heating applied to a shaft-mounted part when brazing a pipe while securing operability and seal performance at stem rotation.SOLUTION: A stem 15 for opening and closing a valve body 13 is mounted into a shaft-mounted part 25 provided at a body 11, and a resin-made packing 20 is mounted in a packing chamber 27 in the shaft-mounted part 25. A thermal expansion absorbing member 21 having heat resistance and absorbing the thermal expansion of the resin-made packing 20 is laminated on the non-contact liquid side of the resin-made packing 20, and the thermal expansion absorbing member 21 is fastened by a gland 16 which is screwed into a screw part 26 of the shaft-mounted part 25.
Inventors:
NAKAI KEIICHI
Application Number:
JP2013012856A
Publication Date:
August 14, 2014
Filing Date:
January 28, 2013
Export Citation:
Assignee:
KITZ CORP
International Classes:
F16K41/04; F16J15/24
Attorney, Agent or Firm:
Tetsuo Kobayashi