SF6 Gas Handling System

4MPa liquid storage,semi automatic operation, 2013

SF6 Gas Handling System

SF6 Gas Handling System

1. What’s SF6 Gas?
SF6 gas has excellent electrically insulating characteristics and thermal properties.
Therefore it is used in gas insulated switchgears, gas circuit breakers and gas transformers as an insulating& arc quenching media to protect the said apparatuses. And SF6 gas is harmless. However it shall not bereleased to an atmosphere, because it has a very high warming potential.

SF6 Physicality· Name: Sulfur hexafluoride· Inert, non-toxic and non-flammable· Colorless and odorless· 5 times of the air weight· No reaction chemistry· High global warming potential

Molecule model of SF6

2. What’s SF6 Gas Handling System?
SF6 gas handling system has the following features.
· SF6 gas vacuum withdrawal from the gas insulated switchgear, purification, filtration and storage in theform of a liquid or compressed gas.
· Air evacuation from the gas insulated switchgear.
· SF6 gas charged into the gas insulated switchgear after vaporization, purification and filtration. (SF6 isvaporized in the case of the liquid.)

3. Kaji SF6 Gas Handling System history
As one department of the reciprocating compressor manufacturer with a history of over 100 years, having
adopted the build-to-order manufacturing system, we started production of the SF6 handling system inYear 1976. And we are the largest manufacturer of handling systems in the Far East Asia areas, having
manufacturing-operation achievements of over 1,200 units at the year of 2013.

5MPa liquid storage,semi
automatic operation, 2012

14MPa liquid storage,
full automatic operation , 1986

4. Kaji SF6 Gas Handling System features· The compressor was self-developed for special purpose for use in SF6 gas, and has a large flow andlower power-consumption mechanism required for the handling system.
· The superior designs based on the valuable experience of manufacturing and operation of many kindsof the handling system enable the handling system to demonstrate the high efficient operation of thewithdrawal, charging and evacuation.
· The handling system has a capacity for removal of water and dusts, capable of meeting the SF6 gasrecycling standards with various ideally designed filters. (The removal of the decompressed gas will be
optionally possible).
· The handling system is equipped with a compressor, parts, vessels and pipe connectors which canreduce gas leakages to the limit for realizing no air-mixtures.
· The handling system has a high reliability, long life and easy to operate mechanism produced by a large
number of achievements.
· In compliance with the customers’ requests, we will manufacture handling systems equipped with a wide
range of compressors (1.5-55kW power), that are optimum for applications.
· According to the customers’ requests, operation of the handling system can be set to any of the manual,semi-automatic(Automatic stop at the stopping) and full-automatic operation modes.
· The handling system is used in various applications (For transformer substations, insulation apparatus
manufacturing facilities, central gas management of the said factilities and acceleration ingeniousness).
In addition, we are able to manufacture various handling systems: System for storing SF6 gas in a formof of compressed gas (1-2MPa=10 – 20bar); System specialized for specific applications; and special
equipment capable of separating the air mixed in the SF6.
· We have many service centers both in Japan and abroad,thereby being able to make speedy maintenance.

1MPa gas storage,semi-automatic operation, 20122

SF6 Gas Handling System

Model: KL50V-5.5OL-PⅡ

Similar system’s photo

Similar system’s drawing

Features:· An original oil-less compressor and oil-free vacuum pump for withdrawal are built-in.
· Portable, compact & light weight, and liquid SF6 storage type SF6 gas handling system.

Specifications:· Gas compressor(14m3/h*, 5MPa=50bar, 5.5kW, direct suction to increase the withdrawal speed).
*: Average discharge capacity(0.6 → 0MPa).
· Vacuum pump for withdrawal(15m3/h, ultimate press.=5Pa · abs=0.05mbar · abs, 0.75kW).
· Vacuum pump for evacuation(40m3/h, ultimate press.=0.2Pa · abs=0.002mbar · abs, 1.5kW).
· Dryer with a particle filter(0.1μm) for purification and filtrations of SF6 gas.
· Air cooling condenser to liquefy SF6 gas for increasing the withdrawal speed.
· Storage tank(300lit) with a heater(5kW) to vaporize SF6 liquid, and a digital weight indicator.
· With safety devices (High press. alarm, weight high signal, and safety valve).
· With lifting hooks and folk lift guards.
· Length × wide × height / Approx. weight : 1635 × 965 × 1931mm / 1400kg· Location : Indoor

Ordering specifications:· Voltage, 50Hz or 60Hz
· Manual operation or semiautomatic operation

3Model: KL50V-5.5OL-PⅢ

Similar system’s photo

Similar system’s drawing

Features:· An original oil-less compressor and oil-free vacuum pump for withdrawal are built-in.
· Portable, compact & light weight, and liquid SF6 storage type SF6 gas handling system.
· High speed vacuum withdrawal with a large size vacuum pump for withdrawal.

Specifications:· Gas compressor(14m3/h*, 5MPa=50bar, 5.5kW, direct suction to increase the withdrawal speed).
*: Average discharge capacity(0.6 → 0MPa).
· Vacuum pump for withdrawal(30m3/h, ultimate press.=5Pa · abs=0.05mbar · abs, 1.5kW).
· Vacuum pump for evacuation(40m3/h, ultimate press.=0.2Pa · abs=0.002mbar · abs, 1.5kW).
· Dryer with a particle filter(0.1μm) for purification and filtration of SF6 gas.
· Air cooled condenser to liquefy SF6 gas for increasing the withdrawal speed.
· Storage tank(300lit) with a heater(5kW) to vaporize SF6 liquid, and a digital weight indicator· With safety devices(High press. alarm, weight high signal, and safety valve).
· With lifting hooks and folk lift guards.
· Length × wide × height / Approx. weight : 1635 × 965 × 1931mm / 1450kg.
· Location : IndoorOrdering specifications:· Voltage, 50Hz or 60Hz
· Manual operation or semiautomatic operation4

SF6 Gas Handling System

Model: KL40V-11OL-RSPⅡ

Similar system’s photo

Similar system’s drawing

Features:· An original middle capacity oil-less compressor, and oil-free vacuum pump for withdrawal are built-in.
· Portable, middle size & middle weight, and liquid SF6 storage type SF6 gas handling system.
· High speed withdrawal with a middle size compressor and middle size vacuum pump for withdrawal.

Specifications:· Gas compressor(33.2m3/h*, 4MPa=40bar, 11kW, reduced suction to decrease the peak power)*: Average discharge capacity(0.6 → 0MPa)· Vacuum pump for withdrawal(30m3/h, ultimate press.=5Pa · abs=0.05mbar · abs, 1.5kW)· Vacuum pump for evacuation(63m3/h, ultimate press.=0.2Pa · abs=0.002mbar · abs, 2.2kW)· Dryer with a particle filter(0.1μm) for purification and filtration of SF6 gas· Refrigerator type condenser to liquefy the SF6 gas efficiently to increase the withdrawal speed.
· Plate type vaporizer(5kW) to vaporize the SF6 liquid efficiently.
· With safety devices(High press, alarm and safety valve)· With lifting hooks· Length × wide × height / Approx. weight : 2900 × 1980 × 2091 mm / 3100kg· Location : Outdoor

Ordering specifications:· Voltage, 50Hz or 60Hz
· Manual operation or semiautomatic operation

5Model: KL50V-19OL-SPⅡ

Similar system’s photo

Similar system’s drawing

Features:· An original middle capacity oil-less compressor and oil-free vacuum pump for withdrawal are built-in.
· Portable, middle size & middle weight, and liquid SF6 storage type SF6 gas handling system.
· High speed withdrawal by middle size compressor and large size vacuum pump for withdrawal.

Specifications:· Gas compressor(60m3/h*, 5MPa=50bar, 18.5kW, direct suction to increase the withdrawal speed).
*: Average discharge capacity(0.6 → 0MPa).
· Vacuum pump for withdrawal(60m3/h, ultimate press.=5Pa · abs=0.05mbar · abs, 2.2kW).
· Vacuum pump for evacuation(63m3/h, ultimate press.=0.2Pa · abs=0.002mbar · abs, 2.2kW).
· Dryer with particle filter(0.1μm) for purification and filtrations of SF6 gas.
· Air cooled condenser to liquefy SF6 gas efficiently to increase withdrawal speed.
· Plate type vaporizer(5kW) to vaporize SF6 liquid efficiently.
· With safety devices(High press. alarm, and safety valve).
· With lifting hooks.
· Length × wide × height / Approx. weight : 3500 × 1980 × 2400 mm / 4600kg.
· Location : Outdoor

Ordering specifications:· Voltage, 50Hz or 60Hz
· Manual operation or semiautomatic operation6

LINE OF PRODUCTS•Compressors• Oil-Free Compressors (3.7~730kW)• Lubricating Compressors (0.4~600kW)• Special High Pressure Compressors(Max. 98 MPaG)•Gas collecting, refining and refilling equipment•Heat exchangers•Pressure Vessel• Oil-less H2 Gas Compressors for H2 station□ Head Office and Plant

6,Bodai, Mihara-ku, Sakai-city, Osaka 587-0064, Japan
TEL：（072）361-0881□ Tokyo Branch

Sales Dept Sales Sec（Tokyo）
Technical Service Dept. Tokyo After-Sales Service Sec.
Hulic Kasai Rinkai 4F 3-6-4, Rinkai-cho, Edogawa-ku, Tokyo 134-0086 Japan
TEL：（03）5679-6910□ Head Office

Sales Dept Sales Sec（Osaka）
Technical Service Dept. Osaka After-Sales Service Sec.
6,Bodai, Mihara-ku, Sakai-city, Osaka 587-0064, Japan
TEL：（072）361-9500

https://www.kajitech.com

2023. 12