Pressure Vessel Approval (PESO) Services
eFileSeva provides expert consultancy and end-to-end assistance for obtaining Pressure Vessel Approval and Licenses from the Petroleum and Explosives Safety Organization (PESO). Governed by the Static and Mobile Pressure Vessels (Unfired) Rules, 2016 [SMPV (U) Rules] under the Explosives Act, 1884, this statutory certification is absolutely mandatory for any facility storing or transporting compressed gases.
Pressure Vessel Approval ensures that unfired vessels containing high-pressure gases—such as Liquid Medical Oxygen (LMO), Nitrogen, Argon, LPG, CNG, Chlorine, or Ammonia—are designed, fabricated, and maintained safely to prevent catastrophic explosions. It must be obtained before commissioning the vessel.
The compliance process is highly technical, involving PESO drawing approvals, fabrication supervision by PESO-recognized Third-Party Inspecting Agencies (TPIA), strict adherence to safety distances, and undergoing mandatory Hydrostatic and Safety Relief Valve (SRV) Testing. eFileSeva simplifies this rigorous safety and legal process, ensuring your plant or hospital operates safely and legally.
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Key Details for Pressure Vessel Approval (SMPV)
eFileSeva facilitates the entire PESO compliance lifecycle—from drawing approvals and TPIA coordination to site layout clearances, District Magistrate NOCs, and final licensing.
| # | Topic | Details |
|---|---|---|
| 1 | What is SMPV Approval? | Statutory licensing from PESO to legally store or transport compressed gases in unfired pressure vessels. |
| 2 | Who Needs It? | Hospitals (LMO Tanks), Chemical plants, Breweries, LPG/CNG bottling plants, and industries using bulk compressed gases. |
| 3 | Governing Laws | The Static and Mobile Pressure Vessels (Unfired) Rules, 2016 under the Explosives Act, 1884. |
| 4 | Regulatory Authority | The Petroleum and Explosives Safety Organization (PESO), headquartered in Nagpur. |
| 5 | Mandatory Testing | A Hydrostatic Test and Safety Relief Valve (SRV) calibration must be certified by a recognized TPIA. |
| 6 | Fabrication Criteria | Vessels must be designed as per ASME Sec VIII, IS 2825, or equivalent, with fabrication drawings pre-approved by PESO. |
| 7 | Safety Distances | Strict clear space (safety distances) around the vessel is mandated by SMPV rules based on gas type and water capacity. |
| 8 | Validity & Renewal | Licenses can be granted/renewed for up to 10 years at a time, subject to periodic testing under Rule 18 and Rule 19. |
| 9 | Local Clearance | For toxic/flammable gases in large quantities, a No Objection Certificate (NOC) from the District Magistrate (DM) is mandatory. |
| 10 | Related Services |
Along with PESO Licensing, eFileSeva assists with:
Rule 19 Hydrotest Renewals
Rule 18 SRV Testing
Factory License (DISH)
Air & Water Consent (CTO)
Fire Department NOC
DM NOC Coordination
|
Pressure Vessel Approval (SMPV) in India: Compliance Explained
Securing the Storage of Hazardous & Compressed Gases
In modern industries and healthcare, the storage of compressed, liquefied, or dissolved gases is an everyday necessity. Because these unfired pressure vessels (like cryogenic tanks or LPG bullets) hold immense explosive potential, their manufacture, installation, and operation are strictly regulated by the Petroleum and Explosives Safety Organization (PESO) under the SMPV (U) Rules, 2016.
Unlike boilers, which generate steam through firing, SMPV rules apply to unfired vessels storing gases like Liquid Medical Oxygen (LMO), Nitrogen, Ammonia, and CNG. The compliance journey begins with the vessel's design. Fabrication drawings must be submitted to PESO for approval to ensure they meet global codes (e.g., ASME Sec VIII).
During manufacturing, a PESO-recognized Third-Party Inspecting Agency (TPIA) must supervise the fabrication, certify the welding quality through radiography, and conduct a Hydrostatic Test. Once the vessel is ready for installation, a Site Layout Plan—demonstrating strict adherence to statutory Safety Distances from buildings and property lines—must be approved.
For certain flammable or toxic gases, an NOC from the local District Magistrate (DM) and the Fire Department is also required before PESO grants the final License to Store Compressed Gas. Operating a pressure vessel without PESO licensing is a criminal offense under the Explosives Act, leading to immediate factory sealing.
Once installed, compliance is ongoing. Rule 18 mandates periodic testing of Safety Relief Valves (SRV), and Rule 19 requires periodic hydrostatic stretch testing (usually every 5 years, or 10 years for specific cryogenic vessels).
eFileSeva acts as your liaison with PESO. From clearing fabrication drawings and TPIA certificates to ensuring site layout compliance and securing your final storage license, we ensure your facility operates safely and legally.
Chief Medical Officer
Multispecialty Hospital
"Installing our new Liquid Medical Oxygen (LMO) cryogenic tank required strict PESO clearances. eFileSeva handled the complex site layout approvals, safety distance justifications, and secured our PESO license seamlessly, allowing our ICU to operate without delay."
100% Client Satisfaction
Key Benefits & Importance of PESO Approval
Securing your SMPV License guarantees workplace safety, legal compliance, insurance coverage, and uninterrupted industrial or medical gas supply.
Explosion Prevention
A ruptured pressure vessel can decimate a facility. PESO rules, TPIA scrutiny, and Hydrostatic Tests ensure the structural integrity of the vessel, safeguarding lives and property.
- Prevents catastrophic gas explosions
- Ensures quality of welds and metal
- Verifies Safety Relief Valve (SRV) function
Legal Right to Store
Under the Explosives Act, storing bulk compressed gas without a PESO license is a criminal offense. This approval provides the absolute legal shield to operate your gas installation.
- Legalizes bulk gas storage
- Prevents factory/hospital sealing orders
- Protects management from prosecution
Validates Insurance
Industrial all-risk insurance and specific liability policies will be instantly voided in the event of a gas leak or accident if the vessel lacked valid PESO registration.
- Secures claim payouts for accidents
- Crucial for Public Liability Insurance
- Meets underwriter compliance requirements
Factory Licensing Prerequisite
The Directorate of Industrial Safety and Health (DISH) will halt the issuance or renewal of your Factory License if hazardous gas vessels are uncertified.
- Essential for DISH compliance
- Clears labor department safety audits
- Ensures overall plant legality
Uninterrupted Gas Supply
Major gas suppliers (like INOX Air Products, Linde, Praxair) will legally refuse to fill your cryogenic or pressure tanks if you cannot present a valid PESO license.
- Ensures vendors deliver bulk gases
- Prevents costly production/medical downtime
- Legal requirement for transport tankers
Site Layout Optimization
The PESO approval process forces a scientific review of your site layout, ensuring that hazardous gas storage maintains safe distances from property lines, offices, and ignition sources.
- Enforces Rule 21/22 safety distances
- Prevents fire spreading
- Secures Fire Department NOC approvals
Eligibility & Technical Requirements
PESO approval under the SMPV (U) Rules is highly stringent. Ensure your vessel manufacturer, inspection agency, and site layout meet the strict standards required for licensing.
PESO Drawing Approval
Before fabrication, the vessel's design calculations and mechanical drawings must be submitted to PESO. They must conform to recognized codes like ASME Section VIII Div 1/2, IS 2825, or PD 5500.
TPIA Supervision & Testing
Fabrication must be supervised by a PESO-recognized Third-Party Inspecting Agency (TPIA). The TPIA issues critical certificates after conducting radiography of welds and the mandatory Hydrostatic test.
Strict Safety Distances
Your Site Layout Plan must clearly demonstrate statutory clear spaces (safety distances) around the vessel, property lines, and protected works as dictated by the water capacity and gas type (flammable, toxic, or non-toxic).
Mandatory Safety Fittings
- At least two Safety Relief Valves (SRVs) must be installed.
- Accurate pressure gauges and liquid level indicators.
- Proper earthing/bonding connections to prevent static electricity build-up.
- SRVs must be tested and certified under Rule 18.
District Magistrate (DM) NOC
For large quantities of flammable (like LPG/CNG) or toxic (like Ammonia/Chlorine) gases, an NOC from the local District Magistrate—incorporating Police and Fire Department clearances—is a prerequisite for the PESO License.
eFileSeva PESO Assistance
eFileSeva coordinates the entire process: reviewing TPIA certificates, optimizing your site layout for safety distances, guiding the DM NOC process, and executing the final PESO portal application.
Vessel Installation Delayed?
Operating an uncertified pressure vessel poses massive safety and legal risks. Let eFileSeva fast-track your PESO drawing approvals and site licensing.
Get Expert GuidanceDocuments Required for PESO Licensing
Applying for a PESO License under SMPV Rules requires exact technical certificates from the TPIA, approved engineering drawings, and precise site layouts.
Entity & Site Documents
Core identification for the plant premises.
- Application in Form AS-1
- PAN, Aadhaar, & Company Incorporation details
- Proof of Land Ownership / Registered Lease Deed
- Board Resolution for Authorized Signatory
TPIA & Test Certificates
Original safety proofs from the inspection agency.
- Certificate of Control (Rule 13) by TPIA
- Hydrostatic Test Certificate (Rule 19)
- Safety Relief Valve (SRV) Test Certificate (Rule 18)
- Manufacturer's vessel specification sheet
Engineering & Layout Plans
Plans required for PESO scrutiny.
- PESO-Approved Fabrication Drawings of the Vessel
- Detailed Site Layout Plan (Showing Safety Distances)
- P&ID (Piping and Instrumentation Diagram)
- Elevation drawings of the installation
Local Approvals (If Applicable)
Evidence of civic and safety clearance for hazardous gases.
- No Objection Certificate (NOC) from District Magistrate
- Fire Department Safety NOC
- SPCB Consent to Establish / Operate
- Factory License / DISH Approval
For Periodic Renewals
Required documents for maintaining the PESO license.
- Original PESO License Document
- Latest Rule 19 Hydrostatic Test Certificate (Every 5/10 yrs)
- Latest Rule 18 SRV Test Certificate (Yearly)
- Payment Challan for License Renewal Fees
Timeline for PESO SMPV Approval
The PESO certification timeline heavily depends on the speed of drawing approvals, fabrication time, and obtaining local District Magistrate NOCs for site layout clearance.
Drawing Approval
Submit vessel design calculations and fabrication drawings to PESO for initial technical scrutiny and stamping.
Fabrication & TPIA Tests
Vessel is fabricated under TPIA supervision. Radiography, Hydrostatic Test (Rule 19), and SRV testing (Rule 18) are completed.
Site Layout & DM NOC
Finalize site layout ensuring safety distances. Submit to PESO for prior approval and apply for the District Magistrate NOC (if needed).
Final PESO Licensing
Upload Form AS-1, TPIA certificates, and DM NOC to the PESO portal. Upon final scrutiny, the Storage License is granted.
Process of Getting Pressure Vessel Approval
The PESO Registration process is sequential. You cannot proceed to installation without prior drawing approvals and rigorous third-party pressure testing.
Design & Drawing Approval
Engage a manufacturer to design the vessel based on ASME/IS codes. Submit these mechanical fabrication drawings to PESO for pre-approval and stamping before any metal is cut.
Fabrication under TPIA
The vessel is built. A PESO-recognized Third-Party Inspecting Agency (TPIA) oversees the material selection, welding procedures, and signs the Certificate of Control (Rule 13).
Hydrotest & SRV Calibration
The TPIA conducts the Hydrostatic Test (pressurizing the vessel with water to check for leaks) and calibrates the Safety Relief Valves, issuing Rule 19 and Rule 18 certificates.
Site Layout & DM NOC
Draft a site layout plan showing exact safety distances from buildings and borders. Apply for PESO site approval, followed by the District Magistrate NOC and Fire Department clearances.
PESO Portal Filing
Compile Form AS-1, all TPIA certificates, approved layout plans, and the DM NOC. Upload these documents to the PESO online portal and pay the statutory licensing fees.
Grant of PESO License
Upon final scrutiny by the Chief Controller of Explosives, the Storage/Transport License is granted. You can now commission the vessel and receive bulk gas deliveries legally.
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Ongoing Compliance & Testing After Licensing
Pressure Vessel compliance is a continuous lifecycle. To prevent accidents due to metal fatigue or valve failure, the SMPV Rules mandate strict periodic testing by recognized competent persons.
| Required Compliance Step | Frequency / Timeline | Key Purpose & Rule |
|---|---|---|
|
Rule 18 (SRV Testing)
|
Every 12 Months. | Safety Relief Valves must be tested and calibrated yearly by a competent person to ensure they blow off at the correct emergency pressure. |
|
Rule 19 (Hydrostatic Testing)
|
Every 5 Years (10 years for some Cryogenics). | The entire vessel must be emptied, cleaned, and hydro-tested to prove the structural integrity of the steel shell has not degraded. |
|
PESO License Renewal
|
Every 1 to 10 Years (as per grant). | Licenses must be renewed before expiry. Failure to renew renders the storage illegal, stopping all gas deliveries. |
|
Approvals for Modification
|
Before any welding/repairs. | No structural repair or welding on the pressure part of the vessel can be done without prior written permission from PESO. |
|
Accident Reporting
|
Within 24 hours. | Any gas leak, fire, or explosion must be immediately reported to PESO and the District Magistrate. The installation cannot be restarted until cleared. |
Facility With PESO Approval vs Without Approval
Operating an uncertified pressure vessel is a massive industrial safety violation. Compare the scenarios below to understand why SMPV compliance is an absolute necessity.
| Feature | Unit With PESO License | Unit Without PESO License |
|---|---|---|
| 1. Workplace Safety |
Safe Operations TPIA testing proves the vessel can safely hold compressed/liquefied gas without failing. |
Explosion Hazard High risk of catastrophic vessel bursting, gas leaks, and mass casualties. |
| 2. Gas Supply & Vendors | Major gas suppliers (Linde, INOX, etc.) will routinely fill the tanks. | Gas suppliers are legally forbidden from filling uncertified tanks. Supply will be cut instantly. |
| 3. Director Liability | Directors are shielded from criminal negligence in the event of an unforeseen mechanical failure. | Directors and factory/hospital managers face direct imprisonment under the Explosives Act. |
| 4. Insurance Claims |
Fully Covered Industrial All-Risk and Public Liability policies will pay out in case of an accident. |
Insurance companies will void the policy and reject all damage/liability claims entirely. |
| 5. Factory License (DISH) | Factory License is easily granted/renewed by the labor and safety departments. | DISH and Fire Departments will seal the premises immediately upon discovering an uncertified hazardous vessel. |
Ready to Secure Your Pressure Vessel License?
Get professional guidance from eFileSeva for SMPV compliance—fabrication drawing approvals, TPIA coordination, site layout safety distances, DM NOCs, and PESO Portal filing.
Talk to an ExpertFrequently Asked Questions
Find answers to common questions about SMPV (U) Rules 2016, Hydrostatic Testing, LMO tanks, and PESO licensing requirements.
Still Have Questions?
Talk to the eFileSeva team for guidance on PESO drawing approvals, TPIA selection, safety distance layouts, and Rule 19 testing.
Talk to an ExpertTrusted by Industries for PESO Compliance
Hospitals, chemical plants, breweries, and LPG/CNG bottlers across India rely on eFileSeva for professional assistance with SMPV Pressure Vessel Approvals, Hydro Testing, and Annual Renewals.
800+
Licenses Secured
400+
Hydro Tests Cleared
Pan India
PESO Liaison Network
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On-Time License Renewals