August 2, 2021
Tokyo Electric Power Services Co., Ltd.
Osaka Gas Co., Ltd.
Daigas Gas and Power Solution Co., Ltd.

Release of “IsolationNavi,” jointly developed software that automatically visualizes
the paths of gas or other fluids flowing through piping for facilities―Improvement of on-site work efficiency and proficiency by the digitization of drawing creation―
Tokyo Electric Power Services Co., Ltd. (Headquarters: Koto-ku, Tokyo; President and Representative Director:
Yasuhiro Kubo; hereafter “TEPSCO”), Osaka Gas Co., Ltd. (Headquarters: Chuo-ku, Osaka; President andRepresentative Director: Masataka Fujiwara; hereafter “Osaka Gas”), and Daigas Gas and Power Solution Co.,
Ltd. (Headquarters: Chuo-ku, Osaka; President and Representative Director: Nobushige Goto; hereafter “DGPS”)
will today release “IsolationNavi,” jointly developed software that automatically visualizes the paths of gas andliquid flowing through piping at production sites, such as gas plants, power plants, and chemical plants.
IsolationNavi makes it possible to automate drawing creation, which is conventionally done in analog, thereby
improving on-site work efficiency and proficiency.

At production sites, such as gas plants, power plants, and chemicalplants, equipment is regularly inspected and engineering works areconducted as needed to ensure safe and stable operation. At that time,
it is necessary to safely isolate equipment to be inspected fromequipment in operation (isolation operation). Specifically, valvesinstalled within piping systems connecting multiple pieces of equipment
must be opened or closed in the correct order to ensure safe fluid flow
without leakage or backflow and thereby isolate the equipment to beinspected from the equipment in operation.
Isolation operation consists of planning, in which the operation procedure is considered based on the drawingsof equipment and piping systems, and on-site work, in which equipment is actually operated according to thecreated plan. Since the path of fluid changes with every opening or closing operation of valves, in conventional
planning, drawings (work plan drawings) are created for every step of the isolation procedure by handwriting orusing drawing software. In addition, when a wide range of equipment must be operated, it takes considerable time
for planners to check multiple drawings. At the stage of on-site work, it also takes considerable time for workers toconfirm the operation procedure since there is no means to perform a simulation in advance, and in addition, theyneed to be familiar with on-site know-how that cannot be communicated through drawings, such as the locationsof the relevant valves, which makes it difficult for young or less-experienced workers to perform isolation operation.
To solve these problems, the three companies have developed IsolationNavi, a simulation software that digitizes
the drawings of plant equipment, such as piping systems and valves (in other words, creates “digital drawings”),
and automatically visualizes the fluid path, which changes with the operation of relevant equipment, such as valves.
The following are the features of IsolationNavi.
 The product can automatically create digital drawings that indicate the range of fluid flow corresponding tothe open/close status of each valve just by operating a PC with a mouse, thereby making it possible tosimulate fluid paths within piping systems at sites.
 The digital drawings can indicate the open/close status of each valve and the corresponding path and rangeof fluid flow at each step of the work procedure, and these data can be saved, so users can easily create
multiple work plan drawings.
 Since the product can link digital drawings with 3D drawings of existing plant equipment, workers can easily

recognize the status of the site. So, the product can be used as a tool for employee training and theinheritance of experienced workers’ know-how.
* “Navisworks Simulate” by Autodesk Inc. is required to link digital drawings with 3D models.
These functions of IsolationNavi allow users to easily create multiple drawings necessary for isolation operation
and recognize the status of the site while checking the status of the fluid path, which changes with the operationof the relevant plant equipment, thereby making it possible to improve on-site work efficiency and proficiency.
Today, the three companies begin offering digital drawing services and selling the software.
We will actively promote IsolationNavi in a wide range of fields where isolation operation is required to contributeto the improvement of on-site work efficiency and proficiency.

■ Inquiries on this news release

Public Relations Office, Tokyo Electric Power Services Co., Ltd.
Phone: +81-3-6372-5942<Company profile of Tokyo Electric Power Services Co., Ltd.>
RepresentativeHeadquarters
Established
Main business

URL

Yasuhiro Kubo, President and Representative Director
9F, Toyosu Grandsquare, 7-12, Shinonome 1-chome, Koto-ku, Tokyo, Japan
December 20, 1960
Comprehensive energy consulting for studies, planning, research, design, analysis,and management related to social infrastructure, including electric power
equipment
http://www.tepsco.co.jp/index.html<Company profile of Osaka Gas Co., Ltd.>
Representative
Headquarters
Established
Main business
URL

Masataka Fujiwara, President and Representative Director
1-2 Hiranomachi 4-chome, Chuo-ku, Osaka, Japan
April 10, 1897
Production, supply and sale of gas; generation and sale of electric power, etc.
https://www.osakagas.co.jp

<Company profile of Daigas Gas and Power Solution Co., Ltd.>
Representative
Headquarters
Established
Main business

Nobushige Goto, President and Representative Director
5-11, Doshomachi 3-chome, Chuo-ku, Osaka, Japan
October 1, 2019
Operation and maintenance of gas plants and power plants; generation and supplyof electric power; engineering

URL

https://www.osakagas.co.jp/company/group/daigasgpsolution/index.html