Serial No.TypeNominal working PressureWater test pressureVolumeDesign wall thicknessNominal Outer Dia.LengthWeightMaterial for cylinderCarry out standard1CNP20-34-279A2033.4347.527910807630CrMoGB172582CNP20-50-279A2033.4507.512908830CrMo3CNP20-53-279A2033.4537.514909930CrMo4CNP20-60-279A2033.4607.5164010830CrMo5CNP20-55-325A2033.4554.93258654130CrMo6CNP20-60-325A2033.4604.99304330CrMo7CNP20-65-325A2033.4654.99954630CrMo8CNP20-70-325A2033.4704.910604930CrMo9CNP20-80-325A2033.4804.911905530CrMo10CNP20-90-325A2033.4904.913206030CrMo