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- BIS ISI certification is mandatory for cylinder valves under IS codes like IS 3224, IS 7302, and IS 8737.
- BIS ISI for cylinder valves ensures safety and quality compliance as per Indian Standards.
- Applicants must submit technical documents, undergo factory audit, and pass lab testing.
- Both Indian and foreign manufacturers can apply (through FMCS for foreign).
- Certification is issued by BIS and typically valid for 1–2 years, with renewal required.
Introduction
A leading manufacturer in Haryana had a bad day when their shipment of LPG cylinder valves was halted at the port due to BIS certification not being attached. They had all their international approvals, but their cargo would not clear customs in India because they did not have a Bureau of Indian Standards (BIS) ISI mark which is mandatory for any such products being imported to India. The stalled shipment cost the manufacturer lakhs of rupees in charging fees and jeopardized growing client trust.
This is not a unique story. Compliance to BIS Certification for Cylinder, Valves, and Regulators is mandatory legislation for organizations who deal in potentially high-risk products in India. Regardless if you are a manufacturer in India or a foreign exporter, receiving your BIS ISI certification, can give you the much-needed assurance that your products conforms to Indian safety and quality standards. Diligence Certifications is your trusted compliance partner for this complex path of compliance
What is BIS ISI for cylinder valves and Regulators?
BIS ISI certification for cylinder valves is a quality assurance certification from the Bureau of Indian Standards under ISI mark scheme, demonstrating compliance with specific Indian Standards (such as IS 3224, IS 7302, and IS 8737) for safety, design, performance and materials. Certification is required before these valves can be manufactured, imported, sold or supplied in India.
The process to achieve the certification involves the submission of documents relating to the test reports, factory inspectations, product certification, the ongoing compliance to the process to maintain the ISI mark , and regulatory compliance to ensure quality.
Why is BIS ISI Certification Mandatory in India?
In India, BIS ISI certification is a prerequisite to safeguard that products such as cylinder valves conform to safety, quality, and performance standards specified by national level specifications. Cylinder valves handle gases at high pressures and have a significant impact on human safety in industries such as LPG, medical oxygen or industrial gas supply. BIS ISI scheme mandatory certification helps:
- Reduce the risk of accidental situations and the risk of equipment failure that may lead to accidents
- Improve product consistency through the building of material integrity, capacity and readiness for the use of a specific product line
- Protect consumers and industrial players
- Comply with regulatory/legal requirements in India
In enforcing BIS (under relevant standards like IS 3224, IS 7302 and IS 8737), the Indian government has provided strict standards for safety and quality for products that utilize pressure.
Who Needs This ISI Certification?
Any manufacturer – whether domestic or foreign – who plans to manufacture, sell, distribute or export cylinder valves which fall under IS standards in the Indian market will require BIS ISI certification.
This includes the following:
- An Indian manufacturers of cylinder valves listed in IS 3224, IS 7302 or IS 8737
- Foreign manufacturers exporting to India (by the FMCS route)
- OEM suppliers who supply certified valves to gas companies or industries
- Importers/Brand owners who are sourcing products to sell in India (and you need to make sure the manufacturer has BIS certification)
If you do not have this certification, then you cannot legally sell or use the products in India for gas cylinder applications.
IS Standards for Cylinders, Valves, and Regulators
The following BIS-recognized Indian Standards apply to Cylinders, Valves, and Regulators:
| IS Standard Code | Product Description |
| IS 8737:1995 | Valves for LPG Cylinders |
| IS 9798:1995 | Domestic Gas Regulators for LPG |
| IS 3224:2002 | Valves for Use in Cylinders for Compressed Gases |
| IS 6901:2009 | Pressure Regulators for Use with LPG Cylinders |
| IS 8776:1999 | Welded Gas Cylinder Valve Protection Caps |
| IS 3710:1980 | Valve Spindles for Gas Cylinders |
| IS 15100:2001 | Self-closing Valves for LPG Cylinders for Use in Cars |
| IS 14899:2000 | Multi-function Valves for Automotive LPG Tanks |
| IS 7285 (Part 1 & 2):2004 | Refillable Seamless Steel Gas Cylinders |
| IS 7312:1993 | Valves for Fire Extinguisher Gas Cylinders |
| IS 8867:2001 | Valves for Medical Gas Cylinders |
| IS 15105:2002 | Composite Cylinders for LPG |
| IS 15935:2011 | High Pressure Regulators for Industrial Use |
These products are widely used in:
- LPG Gas Systems
- Industrial Gas Distribution
- Home & Commercial Kitchens
- Automotive Fuel Systems
- Medical Equipment
- Fire Safety Installations
these are the Documents Required for BIS ISI Certification of Cylinders Valves and regulators
To apply for BIS ISI Certification for Cylinder Valves and Regulators, you need:
Business Documents
- Certificate of Incorporation (COI)
- GST Registration
- PAN Card
- Factory License / Trade License
Technical Documents
- Product Drawing and Specifications
- Bill of Materials (BoM)
- Test Reports from BIS-recognized lab
- Internal Quality Control Protocol
Label & Signatory Documents
- Packaging Label Design
- Brand Authorization (if third-party brand)
- Authorized Signatory Details
- Digital Signature Certificate (if filing online)
Requirements for ISI Certification
To be eligible for BIS certification:
- Product must comply with IS specifications
- Testing must be conducted in a BIS-approved lab
- Factory must maintain internal quality assurance system
- Marking and labeling should follow BIS norms
- Factory audit by BIS may be conducted
- Foreign manufacturers need an Indian Authorized Representative (AIR)
BIS ISI Certification Process for Cylinder Valves
Step 1 – Identify the relevant IS code
Select the relevant Indian Standard (IS), (for example IS 3224 or IS 7302 or IS 8737) based on the type of valve, which identifies the relevant test and certification criteria.
Step 2 – Documentation
Documentation includes technical and legal documents including representative sample specifications, factory information, quality control procedures, test reports. Documentation demonstrates your actual conformity and provides the necessary support.
Step 3 – Apply Online
Register and apply on the BIS online portal, upload the submission documents, pay the appropriate fees and select The product category and applicable IS code.
Step 4 – Factory Visit by BIS
BIS officials come to the factory to inspect and assess the equipment, the quality systems in place, and where applicable, any testing laboratory. During this time they will make an initial evaluation confirming your factory is capable of producing product reliably and in accordance with a specific standard.
Step 5 – Product Sample and Testing
A sample of valves will be withdrawn during the factory inspection, and sent to a BIS approved testing laboratory. The laboratory will test according the requirements of the relevant IS standard (test performance, safety for the article or good).
Step 6 – Grant of ISI Certification
If the results of the test meet with BIS expectations and the inspection processes also confirm compliance to the standard, you will be granted a ISI license has a number, thus you can mark ISI on your valves.
Cost, Validity & Renewal of BIS ISI Certification for Cylinder Valves
Certification Costs
- There are a number of variables that can change the cost of obtaining BIS ISI certification for cylinder valves.
- The type and number of valve products being certified, applicable IS standard (e.g., IS 3224, IS 7302, IS 8737), location and preparedness of the manufacturing unit, any third-party lab testing costs, and BIS application, audit, and marking fees will all influence the price.
- Since every project has different technical and logistical specifications, we do not offer fixed prices on this page.
- For your specific cost estimate, please contact Diligence Certifications and our team can provide direction based on your specific product and market needs.
Validity of the BIS Licence
- BIS ISI Licences (typically valid for 1 or 2 years depending on compliance with your factory and BIS discretion) are issued (after which you are free to apply the ISI mark on any permitted products).
- The validity is clearly stated in the BIS licence documents, and also during this time BIS may visit your factory for unannounced surveillance audits to ensure that you are still complying; and if you are not and found to have broken any rules, your BIS licence can be suspended or cancelled
Renewal Process:
Once the license expires, a manufacturer is entitled to continue using the ISI mark only after applying for renewal or extension of the license. The renewal process is as follows:
- Obtain the renewal application from the BIS portal
- Show proof of product conformity and proof of quality control
- Pay the license renewal fees and annual marking
- Update any documents if there has been a change of setup or ownership of the factory
Failure to renew or delays may result in cancellation of your license, meaning the products can no longer be legally sold on the Indian market.
For complete information regarding documentation, timelines, and renewal formalities, please visit: BIS Certification Renewal Procedure.
Want help managing your renewal on time? Reach out to Diligence Certifications for professional support and end to end management.
Benefits of BIS ISI Certification for Cylinder Valves
There are numerous strategic, legal, and commercial benefits that can come with BIS ISI certification for cylinder valves for manufacturers, importers, and brand owners:
1. Legal Compliance
Certain cylinder valves require BIS ISI certification by law in India. Getting certified will guarantee that you are compliant with any regulations and requirements that could lead to penalties, recalls, or halted sales or distributions.
2. Access to Markets & New Opportunities
With the BIS certification, you can legally sell products throughout India, and also sell to government agencies, oil & gas companies, and industrial purchasers who typically procure only certified components.
3. Consumer & Buyer Trust
The ISI mark is well-known as a symbol of consumer safety and quality. The ISI mark adds credibility for your customers, which is critical whether you’re dealing in B2B or B2C markets.
4. Competitive Edge
If your competitors are not certified, certification helps differentiate your brand. Additionally, certification can assist with qualifying for larger contracts, tenders, or partnerships who often want to see the BIS certification as a prerequisite.
5. Quality & Safety
The BIS process ensures that your manufacturing system has a structured quality process. The result is more consistent product quality, fewer defects, and safer usage of your products – especially in high-risk scenarios such as LPG and industrial gas systems.
Common Challenges & How to Avoid Them
| Challenge | How to Avoid |
| Rejected Application | Ensure correct documents, formats |
| Failed Testing | Pre-test internally before BIS testing |
| Factory Audit Delays | Maintain QC documentation & team availability |
| Labeling Errors | Use BIS-specified format and font size |
| Foreign Manufacturer Issues | Appoint reliable Indian Authorized Representative |
Why choose Diligence Certifications ?
Picking the right certification partner can make the difference between a painless approval process and delays that cost you time and money. Diligence Certifications has the regulatory experience, industry knowledge and complete, end to end support for BIS ISI certification of cylinder valves and other regulated products.
1. BIS Standards Mainstreamed On Cylinder Valves
Diligence Certifications has specialization the compliance process for BIS along with cylinder valves (IS 3224, IS 7302 and IS 8737) with on point and complete compliance, recommendations based on your product and industry.
2. End to End Support to Manufacturer’s
Diligence Certifications is here for all your BIS certification life cycle needs which includes, document preparation follow up, preparation for the factory audit process, submitting application, coordinating with laboratory and renewals on your behalf and managing the full requirements of the BIS certification process.
3. Group of Assigned Consultant’s
Dedicated and experienced consultants, they ensure that you are supported throughout the process, receive timely communications with up-to-date design and project status updates, and report on next steps. This reduces likelihood of costly errors and possible rejections.
4. Proven Success Rate
We have assisted in the approval of a considerable number of Indian and international manufacturers in obtaining BIS licenses in minimal time and with less effort. We have been able to guide manufacturers through approval processes often considered complex or cumbersome or carried out in high volumes.
5. Transparent and Reliable
We believe in ethical consulting, dependability through timelines, honest communiques, and we are not going to leave you wondering about your certification or application progress.
Choose Diligence Certifications today to remove the complexity from your BIS compliance process and get your products to market, safely and legally.
Conclusion
Achieving BIS ISI certification for cylinder valves is not simply fulfilling a regulatory requirement; it is a pledge to quality, safety, and trustworthiness in the Indian marketplace. Whether you are a local manufacturer or a global exporter, by adhering to IS codes such as IS 3224, IS 7302, and IS 8737, you have complied with some of the highest national standards the country offers.
At Diligence Certifications, we will guide you through the entire certification application process from start to finish, including application, audits, testing, and renewal.
With Diligence Certifications’ assistance, you can concentrate on manufacturing while we work through the complexities of BIS compliance.
Want to become certified, but do not know where to start?
Contact Diligence Certifications for an assessment of your product and compliance requirements today!
Frequently Asked Questions
What is the BIS Certification process for Cylinder Valves and Regulators?
BIS Certification indicates that these safety-critical products have been tested according to Indian Standards set out in IS 8737 and IS 9798, which are lawfully mandated.
Is BIS ISI Certification required to sell valves in India?
Yes. According to the BIS Act 2016 and their QCOs it is mandatory for manufacturers and importers to have ISI mark approval.
How long does the BIS certification process take?
It takes approximately 30-45 working days which includes testing, application process, and audit if require
What is the cost of BIS certification?
The total cost ranges between ₹50,000 to ₹1.5 lakh depending on testing and application type.
Can foreign companies get BIS certification?
Yes. They must appoint an Indian Authorized Representative and follow BIS guidelines.
What are the IS standards for Cylinder Valves and Regulators?
There are a number of IS standards that are mandatory for Cylinder Valves and Regulators, such as IS 8737, IS 9798, IS 3224, IS 6901. Each standard would be mandatory for the category of the product.
What are the implications of selling valves without BIS certification?
Selling any product which is not certified is illegal. The implications may mean a fine, seizure of product and may also involve civil + personal culpability to ban trading.
Is factory inspection mandatory for every application?
Not always, but BIS may conduct inspections depending on product type and location of the manufacturing unit.
What are the labeling requirements under BIS?
Products must display the ISI mark along with license number, IS code, and manufacturer details in the approved format.
Can one BIS license cover multiple products?
No. Each product covered under a different IS standard requires a separate BIS license.
How do I appoint an Authorized Indian Representative (AIR)?
Foreign brands must nominate an Indian entity with legal rights to act on their behalf through notarized agreements.
When do BIS license renewals occur?
BIS licenses are valid for a period of up to a 2-year period. It’s mandatory to renew your license in advance of expiry date and updated compliance documentation.
