Why CNG CYLINDER TESTING?
As per Indian Standard 8451, Gas Cylinder Rules & CCOE guidelines , CNG cylinder re-testing is required on interval of every 3 years from cylinder manufacturing date or last re-testing date to ensure 100 % safety of CNG cylinder usage.
CNG CYLINDER EXAMINATION & TESTING PROCESS:
Receipt of CNG Cylinder >>> Checking of documents and Opening of Job Card >>> De-pressure, Degassing and De-valving of cylinder >>> Valve opening and Internal Inspection >>> External Inspection for Thickness, Bulge, Burn , Dents, Dig Etc. >>> Visual Internal Examination >>> Internal cleaning & internal inspection using boroscope >>> Tare WeightTesting >>> Hydrostatic stretch Test (IS:5444) >>> Draining & Drying of cylinder >>> Cylinder Wall Thickness measurement [UT /UF] >>> Visual External Examination >>> Stamping - Test mark sign is punched after testing the fitness of the cylinder >>> Valve Fixing on Cylinders >>> Certification (Test Report)- Deliver the cylinder with Certificate
RACK AND PINION - CNG CYLINDER HYDRO TESTING CENTRE in Faridabad
All cylinders are extensively inspected both internally and externally for signs of corrosion or damage.
We test all kinds of cylinders carefully to meet quality standards.
We follow CCOE guidelines & Indian Standard (IS) for examination of CNG Cylinders
All testing is done in-house and we conductJACKET method Hydro-Stretch testing of CNG cylinders.
Testing is done with most modern machines and supported by highly skilled engineers and technicians.
All parameterof testing examinations are done in professional & scientific way as per Gas cylinder rule.
We follows ethical business practices and day by day adding satisfied & delighted customers
100% Inspection& Testing of CNG Cylinders testing
We strongly believe in continues improvement
We follow rule - Safety is first
What is CNG ?
CNG stands for Compressed Natural Gas. It is a gaseous fuel and is a mixture of hydrocarbons, mainly methane in the range of 95%. Due to its low density, it is compressed to a pressure of 200 bar to enhance the vehicle on-board storage capacity.
Is CNG Safe ?
AbsolutelySafe !!! The properties of CNG make it a safe fuel. It is lighter than air, so in case of a leak it just rises up and disperses into the atmosphere. There are over 3 million vehicles run on CNG which proves the fact. Besides, a high auto-ignition temperature of 540 degrees centigrade as against petrol's 360 degrees centigrade makes it a safe fuel. Also, in case of a leak, if CNG?s concentration in the air is less than 5% and more than 15%, the gas will not burn even in the presence of a spark.
What are the dimensions and weight of a CNG cylinder?
CNG cylinders are manufactured from a special steel alloy and are seamless in construction. Their compact size allows them to easily fit into a small car. An empty CNG cylinder with a 50 litre water-carrying capacity weighs 48 kg (approximately), and has a length of 835 mm and a diameter of 316 mm. The 50 litre capacity cylinder is the one most regularly used in CNG kits but cylinders with 45 litre, 55 litre, 60 litre and 65 litre capacity are used as well. A cylinder with a 50 liter water-carrying capacity is capable of carrying approximately 9 kg of CNG and this is equivalent to 12.5 liters of petrol
What is the pressure of CNG in a cylinder? Is refueling of a cylinder safe, given the pressure?
CNG cylinders are designed and built in such a way so as to withstand high pressure. The maximum pressure in a CNG cylinder is up to 200 kg/cm2 (g) (about 2840 psi[g]). CNG cylinders are safe as they are manufactured as per specific requirements and tested before use, in accordance with international specifications and standards and they are duly approved by Chief Controller of Explosives. Moreover, these have been provided with a 'safety burst disc' such that in case of inadvertent high-pressure/high temperature at the time of filling or at any other time, this disc is ruptured and pressure released.
Does CNG kit require servicing?
CNG kit is safe and simple. It gives years of trouble free operation. It doesn't require frequent servicing. Just as for all other fuels, it is advised to have routine services. An authorized person should be consulted for service. As per Gas Cylinder Rules, the cylinder should undergo hydro-stretch testing every 3 years to check pressure tolerance.
Does CNG have any harmful effect on the engine?
Owing to CNG's distinct features, it does not contaminate or dilute crankcase oil, giving a new lease of life to the engine. The absence of any lead content in CNG helps avoid lead fouling of plugs, thereby enhancing plug life. One of the important benefits of CNG is that upon entering the engine in the form of a gas (and not as a spray or mist like other fuels), it doesn't disturb the presence of lubricating oil in the engine, and reduces chances of wear and tear.