Check (non-return) valves

Check (non-return) valves for pipes and similar appliances

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 13095

HSN 8481 30 00 (check (non-return) valves) is covered by a Bureau of Indian Standards Quality Control Order. Conformity to IS 13095 is mandatory under the ISI Mark Scheme with effect from 1 January 2021, by virtue of the Butterfly Valves (Quality Control) Order, 2020. No separate customs-clearance overlay beyond the BIS obligation is indicated for this tariff line.

What this is

HSN code

8481 30 00

Chapter

84 · Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

BIS QCO

Applicable · ISI Mark Scheme · CM/L required

Indian Standard

IS 13095 · effective 01-01-2021

Applicable Partner Government Agencies

BISBIS·Bureau of Indian Standards

Compliance steps

1
Source only from a Bureau of Indian Standards CM/L-licensed manufacturer holding a current licence against IS 13095. Verify the supplier's CM/L number, licensed product scope, pressure class, and manufacturing facility on the BIS online register before placing the purchase order.
Butterfly Valves (Quality Control) Order, 2020 · S.O. 1920(E) dated 17-06-2020
2
Ensure every valve bears the ISI mark and the supplier's CM/L number under Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018. Marking must appear on the product body, not on the packaging alone.
Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018 · Butterfly Valves (Quality Control) Order, 2020
3
Where the check valve is intended for fitment to a gas cylinder, confirm separately that the valve also satisfies the applicable BIS standard under Rule 4(1) of the Gas Cylinder Rules, 2016 — for example IS 3224 for industrial gas or CNG cylinders — in addition to the IS 13095 QCO obligation.
Rule 4(1) of the Gas Cylinder Rules, 2016 · G.S.R. 1081(E) dated 22-11-2016 · Section 18 of the Explosives Act, 1884
4
Quote the supplier's BIS CM/L number on the bill of entry. Customs verifies the CM/L in real time against the BIS register; an absent, expired, or product-scope-mismatched licence triggers consignment detention, demurrage, and potential re-export or confiscation.
Butterfly Valves (Quality Control) Order, 2020 · BIS Act, 2016 · Customs Act, 1962

A word of counsel

The most consequential error on this tariff line is assuming that the IS 13095 CM/L licence held by a supplier for butterfly valves automatically covers check (non-return) valves. IS 13095 is titled for butterfly valves for general purposes; importers must confirm in writing that the supplier's CM/L scope expressly lists the check-valve configuration being imported. A CM/L that covers only butterfly valves leaves a check-valve consignment unlicensed at port — triggering detention regardless of the product's physical fitness for purpose.

Need a regulatory steer on this product?

Speak to a regulatory counsel about your specific HSN, IS, and supplier situation.

Speak to an Expert

Frequently asked

Does HSN 8481 30 00 require BIS certification?

Yes. Conformity to IS 13095 is mandatory under the ISI Mark Scheme with effect from 1 January 2021 by virtue of the Butterfly Valves (Quality Control) Order, 2020; import is permitted only from manufacturers holding a current BIS CM/L licence.

Does the Gas Cylinder Rules obligation apply in addition to the IS 13095 QCO?

Yes, where the valve is fitted to a gas cylinder. Rule 4(1) of the Gas Cylinder Rules, 2016 requires such valves to comply with cylinder-type-specific BIS standards; this obligation runs in parallel with, and does not displace, the IS 13095 QCO requirement.

Does the IS 13095 QCO apply to all valve types under HSN 8481 30 00?

The CCR evidence anchors IS 13095 to butterfly valves for general purposes. Importers of check (non-return) valves must verify with their supplier whether the CM/L licence scope expressly covers the check-valve configuration, not merely the butterfly-valve family.

Does a single CM/L licence cover all valve sizes and pressure ratings?

No. A CM/L licence is scope-specific by valve type, size range, pressure class, and manufacturing facility; valves outside the licensed scope or from an unlicensed plant are not covered and will be detained at port.

Last verified against gazette notifications: 2026-05-18. Source: BIS / Indian Customs CUSDATA.