Chapter 84 :
1) Basic Excise Duty on 5 specified parts required for the manufacture of centrifugal
pump is being reduced from 12.5% to 6%, subject to actual user condition. Notification
No. 12/2012-Central Excise, dated 17th March, 2012 as amended by Notification No. 12/2016-Central Excise dated 1st March, 2016 [New S. No. 235A] refers.
2) Accessories of goods falling under tariff item 8426 41 00, heading 8427, 8429 and sub-heading 8430 10 are being included for the purposes of RSP based assessment of excise duty. S. No. 109 of Notification No.49/2008-Central Excise (N.T.), dated 24th December, 2008 as amended vide notification No. 12/2016-Central Excise (N.T.), dated 1st March, 2016 and Clause 142 (i) of the Finance Bill, 2016 refer. The Third Schedule to the Central Excise Act, 1944 is also being amended so as to include therein these accessories. By virtue of declaration under the Provisional Collection of Taxes Act, 1931, this change will come into force with immediate effect.
If you are manufacturer of centrifugal pumps parts. Excise duty is applicable of 6%. as per your query you are manufacurer of submersible spare. please check technicality between centrifugal pump and submersible pump.