ASME Certified 20ton N2o Gas ISO Container Tank

T75 UN Portable ISO N2O cryogenic gas tank container.Medium : LO2/LN2/LAR/LCO2/LNG/LN2O .Volume: 21.4 M3Working pressure: 2.2 MPa6058 X 2438 X 2591 mmMaterial: inner: 1.4315 ; shell: SA-516M Gr485Net weight: 10,200kgVacuum pressure rate < 0.05 torr  Scope of supply:(1)tank body         1 set(2)The Valves of tank (equipped with high-quality valves, instruments and liquid level gauge listed in the following:Valves list (get more details on process chart) NO.DescriptionCodeModelQuantity1Pressure Building-up Valve328DJ25PN4.0 DN2512Upper Liquid Inlet Valve328DL40PN4.0 DN4013Lower Liquid Inlet Valve328DL40PN4.0 DN4014Liquid Discharge Valve328DJ40PN4.0 DN4015Pressure Building-up Adjustable Valve253DE20CPN2.5 DN2016Three-way Valve251DT25APN2.5 DN2517Gas Passing Valve328DJ25PN4.0 DN2518Air-Return Valve328DJ25PN4.0 DN2519Vent Valve328DJ25PN4.0 DN25110Residual Discharge Valve251DA8PN4.0 DN8111Safety Valve of Inner Valve7K25PN2.5 DN25212Outer Vessel Safety ValveH019 113Piping Safety Valve350PSIDN8114Fullness Indication Valve328DJ10PN4.0 DN10115Control Valve of Liquid Valve DN4 PN4.0116Vacuum ValveZK-30WA 117Pressure Indication of Inner VesselYO-100Manometer0~2.5MPa118Liquid Level IndicationDifferential Pressure Type0~15000mm1(3)Technical documents        Including:Safety Performance Inspection Certificate of Pressure Vessel Product   one copyQuality Certificate of Pressure Vessel         one copyEligible Certificate of Product                                    one copyMaterial List of Main Compressive Elements                       one copyAll Kinds of Test and Inspection Report                         one set  Location Diagram of Welding Seam Detection                     one copyNameplate Copy                                              one copyEligible Certificate of Complete Valve Instrument                  one setFinal Drawing                                                two copiesOperational Instruction Manual                                 one copyOperational Instruction Manual of Liquid Level, Safety Valve       one set About us:Our company is one of main factory in China Chemical Equipment Group, and as well as the biggest pressure vessel manufacturer in Zhejiang. Sep. Established in 1972 years, We're engaged in design and manufacture pressure vessel for more than 40 years, and have the Design License of Special Equipment (Pressure vessels of type ) (RSPZJHG0401-2), It has the following licenses issued by the State Administration of Quality Supervision, Inspection and Quarantine: A1, A2, B3, C2 and C3 pressure vessel manufacturing licenses; the design license for A1, A2, C2 and C3 pressure vessels; and the design license of GC1(3), GC2 and GC3 pressure pipingWe have passed ISO9001:2008 International Quality Supervision System Certification.  We own 170000 square meter building size The total assets is 180 million, has 500 workers and staff members, including 55 technician (6 super- engineer, 19 engineer, 10 primary technician, 1 super-technician, 4 technician, 15 Nondestructive Tester (RT, UT). There're 8 departments, such as technology, production, sales, quality, purchase, finance, secretary and standard, 1general management office, 1 international export office (Ningbo DSW), 5 workshops and 1 Installation Company. Set up the Welding Test station with Ningbo Bureau of Quality and Technical Supervision. Quality Guarantee System charged by quality engineer, design engineer, welding.Inspection guarantee:The relevant welding seams will be subject to 100% RT non-destructive testing and penetrant testing (PT) according to the technological requirements of storage tank production. High-purity nitrogen (up to 99.999%) will be used to conduct the strength testing. Finally, advanced helium mass spectrometer leak detectors (with precision up to 2×10-9Pa.L/s) will be used to conduct Helium mass spectrometer leak detection. The inner containers of the storage tanks will be passivated by overall pickling to meet the cleanliness requirements for dangerous goods. Imported ultraviolet black light lamps will be used to make sure that there is no oil stain and other organic impurities in the inner containers. The inner and outer containers, after cleaning, will be assembled at a time interval less than 2.5 hours. After assembling, the inner containers and interlayers will be filled with nitrogen to protect them from dust and organic impurities, so as to ensure the cleanliness. The inner and outer surfaces of the outer containers will be subject to overall sandblasting treatment to meet the requirements of Sa-2.5 standard. When the surfaces of steel plates show the metallic color, a vacuum cleaner will be used to suck off the dust adhered to the surface so as to further ensure the vacuum degree in the interlayer. Special high-quality perlite is used as the insulation material in the interlayer. The perlite will be treated by using our company's special process before being in the interlayer. All the internal cylinders, a