CNG Jumbo Cylinder

Gas cylinders —Refillable seamless steel tubes for compressed gas transport, of water capacity between 150 land 3000 l — Design, construction and testing

Members of ISO and IEC maintain registers of currently valid International Standards. 

ISO 148, Steel — Charpy impact test (V-notch). 

ISO 6506, Metallic materials — Hardness test — Brinell test. 

ISO 6892, Metallic materials — Tensile testing at ambient temperature. 

ISO 11114-1, Transportable gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 1: Metallic materials. 

ISO 11484, Steel tubes for pressure purposes — Qualification and certification of non-destructive testing (NDT) personnel.

          Inspection procedure of steel gas cylinder

Markings,re-inspection and warehousing of materials

Materials blanking

Neck forming

Relocation of material marking

Tube end closure

Batch and mark of cylinder

Heat treatment

Hardness test, batch property testing

1st external shot blasting

Neck maching

Internal shot blasting

Magnetic particle examination

Ultrasonic test

Hydraulic test

Mositure removal of internal wall of cylinder

Air tight test

Marking

2nd external shot blasting

Inspection of finished product

Painitng and coating

Packing and warehousing

For the purposes of this International Standard the following definitions apply.

 yield stress

value corresponding to the 0,2 % proof stress, Rp 0,2

 quenching

hardening heat treatment in which a tube, which has been heated to a uniform temperature above the upper critical point Ac3 of the steel, is cooled rapidly in a suitable medium

 tempering

Evaluation of conformity is required to be performed in accordance with the relevant regulations of the country (ies) where the tubes are to be used. In order to ensure that tubes are in compliance with this International Standard they shall be subject to inspection in accordance with clauses 9 and 10 by an authorized inspection body  (hereafter referred to as “the inspector ”) recognized in the countries of use. The inspector shall be competent for inspection of tubes.

Welcome to buy the high standard and ultra light CNG Jumbo Cylinder with new design from our professional manufacturers and suppliers in China. We are one of the world's leading brands. Please be free to contact our factory for more details.