325mm Steel Gas Cylinder

325mm Steel Gas Cylinder

The steel gas cylinder shown on this page comes with an outer diameter of 325mm. It is made of high quality 34CrMo4 to ensure reliable cylinder performance and safety. Our325mm steel gas cylinders are designed with uniform wall thickness of 7.0mm to avoid gas leakage and ensure safety. The 325mm steel gas cylinder is classified into different types according to its capacity, including 50L, 55L, 60L, 65L and maximally 120L cylinders, to name just a few. With the same wall thickness and outer diameter, our steel gas cylinder products have varied lengths to meet varied capacity demands. For example, our 55L steel cylinder has a length of 880mm and weight of 58kg, and our 65L gas cylinder offers 1015mm length and 66kg weight. Our 95L steel gas cylinder has a length of 1410mm and weight of 89kg. For more details, please refer to the second table below.

Quality of the 325mm Steel Gas 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 325mm Steel Gas Cylinder
In order to increase cylinder capacity, we design our gas cylinder to have a slight saucer shape. Therefore, compared with a standard-shaped CNG cylinder of the same capacity, our gas cylinder is shorter in length.

Usage Instruction on the 325mm Steel Gas Cylinder
Our steel cylinder is designed for compressed natural gas storage. Each cubic meter of CNG, after dehydration, desulfuration, and other treatments, should contain no more than 8mg of water and no more than 20mg of hydrogen sulfide.

Chemical Composition of the Raw Material for 325mm Steel Gas 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 325mm Steel Gas Cylinder
Type Outer Diameter (mm) Capacity (L) Length (mm) Weight (Kg) Designed wall
thickness (mm)
Working Pressure
CNP20-50-325A 325 50 815 54 7.0 20 34CrMo4
CNP20-52-325A 52 845 56
CNP20-55-325A 55 880 58
CNP20-57-325A 57 905 60
CNP20-60-325A 60 945 62
CNP20-62-325A 62 975 63
CNP20-65-325A 65 1015 66
CNP20-68-325A 68 1050 68
CNP20-70-325A 70 1080 70
CNP20-73-325A 73 1120 72
CNP20-75-325A 75 1145 73
CNP20-77-325A 77 1170 75
CNP20-80-325A 80 1210 77
CNP20-85-325A 85 1280 81
CNP20-90-325A 90 1345 85
CNP20-95-325A 95 1410 89
CNP20-100-325A 100 1475 92
CNP20-105-325A 105 1540 96
CNP20-110-325A 110 1610 100
CNP20-115-325A 115 1675 104
CNP20-120-325A 120 1740 108

As a major 325mm steel gas cylinder manufacturer and supplier in China, we also produce 267mm steel gas cylinder, 356mm automotive CNG cylinder, 279mm CNG cylinder, and 406mm CNG cylinder.

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