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High Pressure ISO/TPED Cylinders

Since 1981, Norris Cylinder Company has manufactured over 5,000,000 DOT high-pressure cylinders at our plant in Longview, Texas.
This represents over 30,000,000 cylinder life years of service. The quality of cylinders has been time-tested, and we can state with pride that Norris has never had a high pressure failure in the field due to a defect in workmanship.


Norris Cylinder Company High Pressure 200 and 300Bar ISO/TPED cylinders: Norris has developed a line of high pressure cylinders utilizing a modified Cr-Mo steel with a tensile strength around 1100 MPa. These cylinders offer an increased gas content to weight ratio over previous generation Cr-Mo cylinders. Cylinders are manufactured to either ISO 9809-1 or ISO 9809-2 specifications and can be supplied with a Pi mark for use within Europe.



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