CNG Cylinder Hydro Testing Directory & Safety Guide
Find authorized hydrostatic cylinder testing workshops across India. Certified 330 Bar water jacket expansion testing, brass collar date stamping, and official QR-coded compliance certificates.
Select Your City to Find PESO Approved Testing Centers
Direct directory to certified testing facilities, fees, turnaround hours, and phone helplines
Ahmedabad
CGD Network: Adani Total Gas
Delhi
CGD Network: Indraprastha Gas Limited (IGL)
Mumbai
CGD Network: Mahanagar Gas Limited (MGL)
Pune
CGD Network: Maharashtra Natural Gas (MNGL)
Lucknow
CGD Network: Green Gas Limited
Bengaluru
CGD Network: GAIL Gas Limited
Hyderabad
CGD Network: Bhagyanagar Gas Limited
Chennai
CGD Network: Torrent Gas
Jaipur
CGD Network: Torrent Gas
Surat
CGD Network: Gujarat Gas Limited
Kanpur
CGD Network: Central U.P. Gas Limited (CUGL)
Noida
CGD Network: Indraprastha Gas Limited (IGL)
Why Every CNG Cylinder Must Be Hydro-Tested Every 3 Years
CNG cylinders operate under extreme pressure of 200 bar (~3,000 PSI). Over time, constant pressurization cycles, road vibrations, moisture contamination, and temperature swings cause microscopic stress fatigue in the high-tensile steel vessel.
Frequently Asked Questions
How often is CNG cylinder testing mandatory in India?
Under Rule 35 of the Gas Cylinder Rules, 2016 issued by the Petroleum and Explosives Safety Organisation (PESO), Ministry of Commerce and Industry, every automotive CNG cylinder must undergo compulsory hydrostatic testing every 3 years from the date of manufacture or last test.
What is the penalty for driving with an expired CNG cylinder test?
Driving a vehicle with an expired CNG cylinder testing plate attracts a penalty of up to ₹10,000 under Section 190(2) of the Motor Vehicles Act (violation of safety standards). Furthermore, authorized CGD forecourts (IGL, MGL, Adani, Green Gas, etc.) are legally mandated by PNGRB and PESO to refuse CNG dispensing to vehicles with expired plates.
How much does CNG cylinder hydro-testing cost in India?
Government-approved testing centers typically charge between ₹1,500 and ₹2,200 for a standard passenger car cylinder (60 to 75-liter capacity). Commercial vehicles with multiple or cascade cylinders are charged per vessel.
How do I verify if a CNG testing station is genuine and PESO approved?
A genuine testing station must possess a valid certificate of approval issued by the Petroleum and Explosives Safety Organisation (PESO), displayed on premises. Upon test completion, they must punch the official test date, license code, and next due date directly onto the metal compliance plate attached to the brass collar.
