356mm CNG Cylinder

356mm CNG Cylinder

This page shows different types of CNG cylinder with 356mm outer diameter and 7.5mm wall thickness. In order to suit vehicles' fuel capacity demands, the 356mm CNG cylinder is classified into different types according to its capacity. With same outer diameter and wall thickness, our CNG cylinders are designed with varied lengths to allow increasing of cylinder capacity. The cylinder weight also varies accordingly. For instance, our 65L compressed natural gas cylinder has a length of 875mm and a weight of 69kg, our 75L CNG cylinder has a 985mm length and 76kg weight. The maximum capacity of 356mm CNG cylinder is 150L. More detailed specifications are given in the following specification charts.

Quality of the 356mm CNG Cylinder
According to Chinese national and international related standards, a gas cylinder requires only ultrasonic testing. However, in our CNG cylinder production and testing process, we found that ultrasonic testing is able to detect and find out the flaws and defects of the cylinder body but cannot detect any flaws at both cylinder ends. Therefore, we use high precision magnetic particle inspection equipment to conduct another inspection of our CNG cylinders, so as to avoid gas cylinders with flaws at the ends which can be caused by improper heat treatment or inconsistence in raw material quality.

Appearance Advantage of the 356mm CNG Cylinder
Improved winding technique and imported high quality resin provides our CNG cylinder with better aging resistance and surface smoothness. After hydrostatic testing, our gas cylinder has no circumferential cracks on its surface. Additionally, we have made a substantial investment in acquiring new, advanced curing equipment to offer improved curing methods. This curing method can effectively avoid resin loss during the curing process and ensure the safe use of our CNG cylinder. It also assures surface smoothness of the external winding layer around our steel gas cylinder and eliminates workers' injuries caused by the fine fibers of the glass fiber material.

Usage Instruction on the 356mm CNG Cylinder
The CNG cylinder should be checked and tested thoroughly every three years, or given periodic checks and tests according to local regulation and rules. The checking and testing of gas cylinders should be conducted by qualified companies in the industry. It is forbidden to continue to use the CNG cylinders which have been seriously corroded, burned, impacted, or damaged by other reasons, so as to avoid potential dangers.

Chemical Composition of the Raw Material for 356mm CNG Cylinder Production
Material designation: 34CrMo4
Composition C Si Mn P S P+S Cr Mo V Ni Cu
Content (%) 0.30- 0.37 ≤ 0.40 0.60- 0.90 ≤ 0.020 ≤ 0.020 ≤ 0.030 0.9- 1.2 0.15- 0.30 - ≤ 0.3 ≤ 0.2
Technical Specifications of the 356mm CNG Cylinder
Type Outer Diameter (mm) Capacity (L) Length (mm) Weight (Kg) Designed wall
thickness (mm)
Working Pressure
CNP20-57-356A 356 57 790 64 7.5 20 34CrMo4
CNP20-60-356A 60 820 66
CNP20-62-356A 62 845 67
CNP20-65-356A 65 875 69
CNP20-70-356A 70 930 73
CNP20-75-356A 75 985 76
CNP20-77-356A 77 1005 78
CNP20-80-356A 80 1040 80
CNP20-82-356A 82 1060 82
CNP20-90-356A 90 1150 87
CNP20-100-356A 100 1260 94
CNP20-110-356A 110 1370 101
CNP20-113-356A 113 1405 103
CNP20-120-356A 120 1480 108
CNP20-125-356A 125 1535 112
CNP20-130-356A 130 1590 115
CNP20-140-356A 140 1700 122
CNP20-145-356A 145 1755 125
CNP20-150-356A 150 1810 129

As a major 356mm CNG cylinder manufacturer based in China, BANNER offers a vast range of products that includes 325mm steel gas cylinder, 406mm automotive CNG cylinder, 279mm CNG cylinder, and many others.

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