To our valued customers　　　　　　　　　　　　　　　　　　　　　　　　　　September, 2021
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Shinko Seiki Co., Ltd.
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Component division

　　　　　　　　[SR-75BII Type Oil-sealed Rotary Vacuum Pump Parts]
　　　Announcement of sales termination of 100L sight glass in the oil filter assembly

Dear Sir/Madam,
We would like to thank you for your patronage given onto our products as usual.

　Around 2002, a particular problem occurred in which the sight glass (P/n 144) of the oil filter
assembly of SR-75BII type oil-sealed rotary vacuum pump was damaged, and as a response, the sight
glass length was reduced from 145L to 100L. The pumps delivered after March 2004 have been
changed to 145L of their original size by treating the sight glass so that it is less susceptible to cracking.

　Since March 2004, we have been supplying parts for 100L glass as well as 145L glass in parallel.
However, after more than 15 years have elapsed since returning to 145L glass size, we have decided to
terminate the sale of 100L sight glass.

　We apologize for the inconvenience, but thank you for your understanding.

　　　　　　　　　　　　　　　　　　　　-Note-

[Termination-of-sale products]
　SR-75BII Type Oil-sealed Rotary Vacuum Pump Parts, Sight glass Size 100L (P/n 144)

[Termination of sales]
　As soon as inventory ceases (remaining 3 pcs. as of September 1, 2021)

[Shipping timing/serial number]
　*November 2002 to February 2004
　*The first digit of the serial number starts with “3”.

[Alternative products]
　Current glass shell size 145L “A set of oil filter assembly (Part Nos. 141～151, 155)”

　○Contact
　　Kobe Branch Office 078-332-3400 /Tokyo Branch Office 03-3271-2156