UN Portable Pressure Vessels Archives

UN Portable Pressure Vessels

Our UN pressure vessels are designed and built to perform reliably for the world’s most demanding users, in challenging transport situations around the globe. They live up to rigorous United Nations standards and Alloy Products’ reputation for quality and long life.

A large inventory of pre-tested, 3.8L, 11.4L, 37.8L and 208L models are available from factory stock. You can save the cost of testing to UN standards by using these stock UN vessels.

Built in compliance with UN/DOT 49 CFR non-bulk packaging, parts 172-178 (latest revision).

Standard Features

all UN vessels undergo the following tests:

Four 1/4″-18 NPT female pipe fittings in top head.
White pickle finish.
A stainless-steel skirt is standard on all models with a removable rubber boot standard on all 229mm models.
Ring chimes for protection of fittings and ease of transport during shipment and use.
Built-in skids on 208 litre model 88-55.
Fully compliant with the requirements of the American Society of Mechanical Engineers (ASME) for Unfired Pressure Vessels, Section VIII, Division 1.

Drop Test Subpart M, Section 178.603
Leak-Proofness Test Subpart M, Section 178.604
Hydrostatic Test Subpart M, Section 178.605
Stacking Test Subpart M, Section 178.606
Vibration Test Subpart M, Section 178.608
Periodic Retesting Subpart M, Section 178.601(e)

Tanks are certified with pipe plugs as the standard closure.