VALVE, METHOD FOR REPLACING VALVE BODY UNIT OF VALVE, AND VALVE ASSEMBLY METHOD

WIPO Patent Application WO/2020/066585

A1

The present invention enables a valve body unit to be easily replaced.　The present invention is configured such that: a stem 4, a fitting ring member 5, and a valve body unit are moved to a valve seat side 2d by a driving force of a handle 8; a replacement ring 7 is pressed so that the replacement ring 7 moves inside a bonnet 3 while decreasing in diameter, and falls to a flange part 13B in a free state; the stem 4, the fitting ring member 5, the valve body unit 10, and the replacement ring 7 are moved to the reverse side from a valve seat 2d side by the driving force of the handle 8, so that the upper surface 7B of the replacement ring 7 and the lower surface 3C of the bonnet 3 abut each other; and while the flange part 13b abuts the replacement ring 7, only the stem 4 and the fitting ring member 5 are moved to the reverse side from the valve seat 2d side by the driving force of the handle 8, so that the diameter of a connection ring 6 is increased by means of a connection groove 11c of a connection member 11 and the valve body unit 10 falls out of the stem 4.

SATO HIDENOBU (JP)
KONDO KENTA (JP)
NAKATA TOMOHIRO (JP)
NAKAZAWA MASAHIKO (JP)
NAKAMURA NOBUO (JP)
YUHARA TOMOKO (JP)

PCT/JP2019/035458

April 02, 2020

September 10, 2019

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FUJIKIN KK (JP)

F16K43/00; F16K1/04; F16K7/16

JP2017516039A

2017-06-15

YAMASHITA Yuji (JP)

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