Project Details

  • Clients Global Semiconductor Precursor
    & Chemical Logistics
  • Team Kunshi Special Vessel
    Engineering & QA Team
  • Services UN T21 Tank Design, ASME/TPED
    Stamping & 100% NDT Leak Audit
  • Category Hazardous & ISO Tanks

Engineering Overview

The Keystone Vessel 1,880L UN T21 Portable Tank is a highly specialized pressure container custom-built for high-risk chemical precursors used in semiconductor synthesis, catalysis, and organometallic chemical transport. Designed to safely isolate pyrophoric (spontaneously combustible) and water-reactive liquids such as Organometallic Substance, Liquid, Water-Reactive, Flammable (UN 3394 / UN 3399), this tank provides maximum structural protection during international intermodal transit

Key Technical Specifications

UN Tank Code UN T21 (Pyrophoric & Organometallic Liquids)
Hazard Class / UN Numbers UN 3394, UN 3399 (Class 4.2 / Class 4.3 Hazardous Goods)
Nominal Volume 1,880 Liters (1.88 m³)
Tare Weight 950 kg
Max Gross Mass 4,000 kg
Max Payload Mass 3,050 kg
Handling & Base Frame Integrated 4-Way Forklift Pockets & Top Lifting Lugs

Safety & Structural Highlights

  • Zero-Leak Top Discharge: Engineered strictly with top-discharge valve assemblies housed inside a heavy-duty protective cover to prevent accidental bottom impacts and chemical leaks
  • Extreme Pressure & Impact Protection: Manufactured with thick-gauge certified pressure vessel steel, capable of enduring internal pressures under high thermal loads.
  • Inert Gas Blanketing Compatible: Fitted with helium leak-tested valving for nitrogen/argon inert gas blanketing during transport.
  • Global Safety Licenses: Full compliance with ASME Sec VIII, US DOT, EU TPED (Pi Mark π), IMDG Code, and China TS license
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