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- BIS Certification following IS 8737 is mandatory for liquefied petroleum gas cylinders above 5 liters capacity.
- It ensures the safety of materials, suitability of design and pressure resisting performance.
- It must be tested in a BIS approved laboratory and factory inspected.
- If the valve has not been verified, it cannot be sold or legally used in India.
- Certification increases safety, enhances reliability and acceptance in the market.
Introduction
Safety and regulatory norms for the manufacturing of LPG cylinder valve fittings are very stringent. If the valve fittings of a manufacturer’s or importer’s are not accompanied by a BIS license under IS 8737, it is very likely that they will face a delay and their shipment may even be rejected. The BIS Certification demonstrates the safe design of the valve fittings along with the quality of the materials and performance. Adhering to the specifications protects users and the public from accidents and issues caused by the fittings. Bureau of Indian Standards
What is IS 8737:2017?
IS 8737:2017 is the Indian Standard that details the safety, material and performance requirements for valve fittings mounted on newly manufactured LPG cylinders with a water capacity greater than 5 litres, while ensuring that the valve fittings have the ability to safely control the pressurised LPG without leakage or failure. ISI MARK
Key Points:
- Applies to valve fittings for new production LPG cylinders greater than 5 litres in capacity
- Material quality, design accuracy, and construction standards
- Required testing of the valve fittings are extensive: pressure, torque, impact, temperature and leakage
- Correct marking of product and batch traceability.
- Forms the basis for mandatory BIS Certification for legal sale in India
Why BIS Certification Mandatory for Valve fittings for use with Liquefied Petroleum Gas (LPG) cylinders
- It is a way of ensuring that the product meets the standard IS 8737:2017 that is concerned with safety and performance of LPG valve fittings.
- It is a legal requirement in India for local manufacturing, import, and sale of LPG valve fittings with a capacity of more than 5 liters of water.
- It stops leakage, fire, and explosion caused by unsafe valves.
- Besides, it is a way of quality assurance as well as production traceability and accountability.
- Builds market trust and allows smooth supply to LPG cylinder manufacturers and distributors
Importance & Benefits of BIS Certification
| Importance | Benefits |
| Ensures valves meet strict LPG safety requirements | Reduces risks of leakage, fire, and accidents |
| Mandatory for legal sale and supply in India | Prevents regulatory penalties and product rejection |
| Confirms quality of materials and design | Improves durability and reliability of valve fittings |
| Enables product traceability and accountability | Enhances customer confidence and brand credibility |
| Aligns with national and industrial safety norms | Expands market acceptance and business opportunity |
Step by Step process of BIS Certification
Step1:Documentation
- Collect product drawings, raw material details, and design data
- Prepare Quality Control (QC) manual and manufacturing process flow
- Ensure calibration certificates for machinery and testing instruments
- Keep marking details, traceability system, and legal business documents ready
Step2:Product Testing
- Submit valve fitting samples to a BIS-recognized laboratory
- Conduct mandatory safety & performance tests as per IS 8737:2017
- Ensure all test results meet standard requirements without deviation
- Maintain complete lab reports and batch identification records
Step3:Application Submission
- Apply online through BIS Manak Online Portal
- Upload complete documents, test reports, and compliance forms
- Pay BIS application, audit, and marking fees
- If foreign manufacturer, appoint Authorized Indian Representative (AIR)
Step4:Scrutiny and Inspection
- BIS evaluates test results and technical documents
- Factory audit to verify equipment, production capability, and QC system
- Inspectors review labeling, handling, and traceability procedures
- Address any non-conformities quickly for re-verification
Step5:Grant of License
- BIS issues certification once full compliance is confirmed
- Manufacturer gets approval to use the ISI Mark on valve fittings
- License covers only approved models and production location
- Ongoing surveillance audits ensure continued compliance
Documents Required for BIS Certification
| Category | Documents Required |
| Company & Legal | Company registration certificate, GST/IEC, Factory licence, Authorized Indian Representative (AIR) documents for foreign manufacturers |
| Product & Technical | Detailed drawings, material specifications, bill of materials, process flow chart, internal test reports (if any) |
| Quality Management | Quality Control manual, list of production and testing equipment, calibration certificates, operator qualifications |
| Product Testing | BIS-recognized lab test reports as per IS 8737:2017, sample tracking records, conformity data |
| Marking & Traceability | Label layout showing ISI mark placement, traceability/batch coding system, packaging and handling procedure documents |
Timelines, Costs, Validity & Renewal
- Timelines: Normally 30–60 days, which is reliant on the completion of the testing and audit.
- Costs: Are inclusive of the BIS application, product testing, inspection, and marking fees.
- Validity: The licence issued by BIS is generally valid for 2 years.
- Renewal: It is necessary to have recent test reports and compliance records prior to the time of expiry.
Why Choose Diligence Certifications
- Strong expertise in BIS certification for LPG valve fittings under IS 8737, ensuring technical accuracy in every submission
- Dedicated coordination with BIS officials and recognized labs to avoid delays and repeat audits
- Assistance in establishing and refining traceability, QC systems, and marking compliance, which are critical approval checkpoints
- Proven support for foreign manufacturers including Authorized Indian Representative (AIR) services, enabling smooth market entry into India
- Transparent communication with regular progress updates to ensure predictable certification timelines
Key Highlights
| Category | Details |
| Product Name | Valve fittings for use with LPG cylinders of more than 5-litre water capacity (Part 2 – Newly manufactured LPG cylinders) |
| Applicable Standard | IS 8737:2017 – Mandatory safety and performance requirements for LPG valve fittings |
| Certification Requirement | BIS Certification is compulsory for manufacturing, importing, and selling in India |
| Primary Safety Goal | Prevents gas leakage, fire, and explosion risks in high-pressure LPG applications |
| Compliance Scope | Covers material quality, testing, permanent marking, QC systems, and traceability |
| Market Benefit | Enables legal supply, boosts reliability, and increases acceptance in industrial LPG markets |
Conclusion
The safety of LPG cylinders relies on the integrity of the valve fittings. Therefore, it is imperative that all manufacturers supplying the Indian market are BIS Certified for valve fittings suitable for liquefied petroleum gas cylinders over 5 litre water capacity Part 2 valve fittings for new LPG cylinders under IS 8737. This process can be made more efficient and quicker while remaining compliant with the help of expert assistance from Diligence Certifications. For businesses supplying, this is an obligation to be certified by the Bureau of Indian Standards, and a commitment to safety and the future.
Frequently Ask Questions
What is BIS Certification for LPG cylinder valve fittings?
BIS Certification is essentially confirmation that the valve fittings which are the parts of a liquid petroleum gas cylinder conform with the safety and performance aspects and are therefore safe for use in the industry and households in India. The components meet the safety and performance criteria as per IS 8737:2017.
Which products require BIS certification under IS 8737?
It is a must to take a certificate for the valve connecting the LPG gas cylinder (liquefied petroleum gas) with a water capacity of more than 5 liters, primarily in the case of new cylinders.
Is BIS certification mandatory for manufacturing and selling LPG valve fittings in India?
Yes. Without BIS certification, the product cannot be produced, imported, marketed, or distributed in India legally.
What safety tests are required under IS 8737?
These are leak resistance, endurance testing, torque performance, stress cracking, internal pressure exposure, and operational performance checks.
Who issues the BIS Certification?
After checking the product and visiting the factory, The Bureau of Indian Standards (BIS), the national standards body of India, issues the license.
After checking the product and visiting the factory, The Bureau of Indian Standards (BIS), the national standards body of India, issues the license.
The documents needed for BIS Certification of valve fittings include company registration, product drawings, QC manual, equipment calibration records, marking details, and test reports from a lab recognized by BIS.
How long does the BIS Certification process take?
It normally takes from 30 to 60 days, the greatest factors that determine the duration are the time taken for the tests and how well prepared the audience is.
What is the validity of BIS Certification under IS 8737?
The certification period is normally 2 years, and it is subject to renewal depending on the surveillance and compliance audit.
Can foreign manufacturers obtain BIS Certification for LPG valve fittings?
Yes, foreign manufacturers can obtain the same. They are required to appoint an Authorized Indian Representative (AIR) who will take care of the BIS certification process on their behalf.
Why should manufacturers choose Diligence Certifications for BIS compliance?
Diligence can be very helpful to manufacturers with their technical knowledge, quick processing, full documentation support, and endurance during the testing and factory inspections as they provide guidance to reduce the chances of a rejection.
