To ensure that tanks and vessels are kept safe during periods of excessive vacuum caused by emptying of product and changes in thermal contraction.

All vents come pre-set with full certification including material test certificates, Atex certificate of conformity and function test certificates.

Standard Weight Loaded Vacuum Settings -2 mbarg to -60 mbarg

Standard Spring-Loaded Vacuum Settings   -70mbarg to -700mbarg

Size range 2" (DN50 mm) – 12" (DN300 mm)

Standard body materials – Aluminium, Carbon steel, Stainless steel

Standard trim material – Stainless steel

Diaphragm material - FEP

Body materials – Aluminium, Carbon steel, Stainless steel, Polypropylene

Trim material – Stainless steel, Hastelloy, Polypropylene

Diaphragm material – FEP

Removable seats with self-draining design to prevent freezing

Connections to suit your tank typically ANSI/DIN/API

Lightweight design

Nonstandard applications – such as steam jacketed, Derakane coated - please consult us.