Accessory classification test upheld for safety valves fitted to machinery pipe-lines as integrated functional components.

Safety valves fitted on pipe-lines connected to machinery were treated as accessories of machinery because they relieved excess pressure, protected tanks and pipe-lines, and ensured smooth and safe functioning. Applying the settled test that an accessory is something added for the convenient use, effectiveness, or supplementary functioning of the main article, the tribunal noted that these valves were specially designed for petroleum and chemical industries and could not be used independently. On that basis, they were not independent goods divorced from the machinery, but items that enhanced its convenience and effectiveness. They were therefore classified as accessories of machinery under entry 81 of the First Schedule to the Tamil Nadu General Sales Tax Act, 1959.

---

---

Issues: Whether safety valves fitted on pipe-lines connected to machinery are classifiable as parts or accessories of machinery under entry 81 of the First Schedule to the Tamil Nadu General Sales Tax Act, 1959.

Analysis: The safety valves were found to be fitted on pipe-lines linked to machinery and were used to relieve excess pressure in tanks and pipe-lines so as to protect the machinery and ensure its smooth and safe functioning. The Court applied the settled test that an accessory is something added for the convenient use, effectiveness or supplementary functioning of the main article, and noted that the valves were specially designed for use in petroleum and chemical industries and could not be used independently. On that basis, the Court accepted the Tribunal's view that the valves were not independent goods divorced from the machinery, but were items that added to the convenience and effectiveness of the machinery.

Conclusion: Safety valves are accessories of machinery and fall under entry 81 of the First Schedule to the Tamil Nadu General Sales Tax Act, 1959; the classification adopted by the revenue authorities was upheld.

---