Views: 2025 Author: Keystone Vessel (Wuhan) Publish Time: 2025-01-14 Origin: Keystone Vessel (Wuhan)
20PCS Catalyst Tanks Export To The US UN Portable Tank T21 TEA TMA 1.88m3 Ready for Delivery
with 30pcs Spare PSV RELIEF VALVES SF/A412F-25P(3B)
Max. gross mass : 4000 kg
Tare : 1050 kg Payload : 2950 kg
ASME Certification Mark with U; Fusible element setting 177°CProduct: UN T21 TEAL Tank
C430 Specifications
1-Water capacity:1880 litre
2-Max.Gross mass:4000kg
3-Max. Tare mass:1070kg
WATER CAPACITY | |
MAX GROSS MASS | 4000kg |
MAX TARE MAS | 1050kg |
EXTERNAL DIMENSIONS | 2128mm*1148mm*1388mm |
M.A.W.P | 14bar 1.4Mpa /-0.13MPa at 65 oC |
DESIGN TEMPERATURE | -40oC to +65oC |
MATERIAL | SA-516M Gr.485 / 16MnDR |
SHELL THICKNESS | 12mm,12mm |
PRESSURE VESSEL CODE | T21 UN ,IMDG,ADR/RID,49CFR,TIR,USDOT,ASME,BV |
APPLICABLE CARGOS | TRIETHYL ALUMINUM UN3394 UN3399 |

KSVU240016 -KSVU240035
Marks | Description of goods | Quantity | N.W/G.W | DIMENSIONS (LxWxH)(cm) |
N/M | RELIEF VALVES SF/A412F-25P(3B) | 30 | 180KGS /220KGS | 1 package 53x63x48CM ≤ 0.5 CBM |
C480 CYLINDER T21 PORTABLE TANK (EMPTY AND NEW TANKS) | 20 | 21000KGS /21000KGS | 2128x114.x1388mmX20 67.82CBM |
Country of origin: China 2X 40HQ / 21220KGS 68.32CBM
| BVCT: BVCT2470696/S | Report N° : CN-2025-RZH-00001 - CN-2025-RZH-00020 | ||||
| Manufacturer: Keystone Vessel Manufacturing Co., Ltd. Country : CHINA | |||||
| Max. gross mass: 4000 kg | [ Tare: 1050 kg | Payload: 2950 kg | |||
| Owner : Boulder Scientffic Company | Operator : | ||||
| Portable Tank Instruction : T21 | [ ADR/RID Tank Code: | Speciar Provisions: TP2 TP7 TP36 TP41 | |||
Model : KS1 880-T21 Serial N° : : C240016~C240035 ISO size/Type code : NA Type: UN Portable Tank Prototype Ref : BVCT2370646/S Dimensions : 2128x1148x1388 mm | |||||
| [ SUBSTANCES SUITABLE FOR TRANSPORT: | UN 3394+UN 3399 | ||||
| [ Nominal capacity : 1880L Measured capacity : 1880L at 20°C Max. allowable working pressure : 14.00 bar Test pressure : 21.00 bar | APPROVALS** IMDG : F/BV/23/194-T21 ADR/RID : F/9151/BV/24 TIR* : GBIC 26839 BV/2023 US-DOT CFR49 : UN Portable Tank | ||||

UN 3394, UN 3399 & T21 Portable Tank Containers
Both UN 3394 and UN 3399 are compatible with T21 portable tank containers for transporting water-reactive, pyrophoric organometallic liquids (e.g., triethylaluminum, diethylaluminum chloride). Classified as UN Class 4.2 dangerous goods, they fall under Packing Group I (high hazard), requiring nitrogen blanketing, strict water prohibition, and compliance with IMDG/ADR/RID/49CFR regulations.
Basic Information Comparison Table
Item | UN 3394 | UN 3399 | Core Attributes of T21 Tank Containers |
Proper Shipping Name | Organometallic substance, liquid, pyrophoric, water-reactive | Organometallic substance, liquid, water-reactive (non-pyrophoric) | Designed for organometallic liquids; Class 4.2 compliant; Packing Group I; Packaging Instruction P400 |
Common Substances | Triethylaluminum, diethylaluminum chloride, ethylaluminum sesquichloride | Some alkylaluminum derivatives (non-pyrophoric type) | Design pressure: 14 bar; Temperature range: -40℃ ~ 65℃; Materials: SA-516/16MnDR、09MnNiDR、SS304; Common volumes: 1750L/1880L |
Hazard Class | 4.2 (self-reactive flammable substances) | 4.3 (substances which, in contact with water, emit flammable gases) | Equipped with DN50 rupture disk, DN15 liquid phase valve, gas phase valve, and nitrogen blanketing system |
Key Hazard Characteristics | Pyrophoric on exposure to air; violent reaction with water | No pyrophoricity, but releases flammable gases on contact with water | Frame protection for anti-overturning/impact resistance |
Key Technical & Certification Requirements for T21 Tank Containers
1. Design & Manufacturing Standards
Complies with IMDG CODE, ADR/RID, 49CFR, ASME BPVC Section VIII Division 1, and GB150. Third-party certification (CCS/BV/ASME U Stamp) is mandatory, with 100% radiographic inspection of welds (weld efficiency = 1.0) and stress-relief heat treatment required.
2. Safety Accessories & Testing
○ Safety components: DN50 rupture disk, DN15、DN20、DN25、DN32 liquid ball valve, DN20 gas phase valve, Filling nitrogen.
○ Testing requirements: Hydrostatic test (21 bar), pneumatic tightness test (14 bar); in-service inspection every 2.5 years (in addition to initial inspection).
○ Operational protection: Maintain positive nitrogen pressure during transportation; temperature ≤ 30℃; avoid exposure to moisture and oxidizing agents.
Core Transportation & Operation Specifications
1. Labeling & Marking
○ UN 3394: Label with Class 4.2 flammable hazard label + water-reactive subsidiary label; mark "Water prohibited for fire fighting (except as authorized by experts)".
○ UN 3399: Label with Class 4.3 hazard label; mark water-reactive warning.
○ Tank marking requirements: Clearly indicate T21 code, UN number, volume, design pressure, and manufacturing date.
2. Loading & Unloading Operations
○ Conduct the entire process under nitrogen protection to prevent contact with air and water.
○ Loading/unloading areas must be free of ignition sources; equipped with dry sand, inert powder, emergency eyewash stations, and safety showers.
○ Leakage response: Cover spills with dry sand immediately; do NOT flush with water.
3. Transport Restrictions
○ Limited quantity: 0; Exceptional quantity: E0.
○ Transportation category: V1; dedicated vehicles only; no mixed loading with other dangerous goods.
○ Packaging specification compliance: Meet Special Provision PP86 and Packaging Instruction P400.
Key Notes & Common Issues
1. UN 3394 vs UN 3399
○ UN 3394 is pyrophoric (ignites spontaneously on air exposure), while UN 3399 is non-pyrophoric. Both are water-reactive and share T21 tank compatibility, with differences only in labeling and emergency response procedures.
2. Material Selection for Low-Temperature Conditions
Prioritize 09MnNiDR ,16MnDR,SS304 、SS316 for low-temperature applications; use SA-516 for ambient-temperature scenarios to ensure corrosion resistance and low-temperature toughness.
3. Emergency Response Protocols
○ For leaks: Cover with dry sand or inert powder to prevent spread; do NOT use water for dilution or flushing.
○ For skin contact: Blot the affected area with dry sand or inert powder first, then wipe with ethanol, rinse thoroughly with water, and seek medical attention immediately.
○ Personal protective equipment (PPE): Full-body flame-retardant clothing, chemical-resistant gloves, safety goggles, and face shields are mandatory for all operators.
Keystone Vessel Specializing - Industrial Gas Cylinders| ISO Tank| Pressure Vessel| UN Portable Tanks-