Title:
VALVE LOCK MEMBER AND MAINTENANCE METHOD OF WATER PROCESSING DEVICE
Document Type and Number:
Japanese Patent JP2022144062
Kind Code:
A
Abstract:
To provide a lock member which can keep a valve in a closed state or an open state even if compression air is stopped, and to provide a maintenance method of a water processing device using the lock member.SOLUTION: A valve stem which is continuous with a valve body of a butterfly type valve device 1 protrudes to the outside of a valve housing 2, and a lock bar 4 is provided at a tip of the valve stem. A lock member 30 for locking the valve body in an open or closed state includes: a first base plate 10 fixed to the valve housing 2; and a second base plate 20 having an elongated hole 21 with which the lock bar 4 is engaged.SELECTED DRAWING: Figure 1
Inventors:
YOSHIDA MASAHIKO
Application Number:
JP2021044904A
Publication Date:
October 03, 2022
Filing Date:
March 18, 2021
Export Citation:
Assignee:
KURITA WATER IND LTD
International Classes:
F16K35/10
Attorney, Agent or Firm:
Tsuyoshi Shigeno
Takayuki Shigeno
Takayuki Shigeno