Breather Valves

Breather Valves

Back to Tank Protection

Superior Tank protection

Specifically designed for tank protection, Breather Valves; also known as direct acting pressure or vacuum valves; are the latest addition to Elfab’s pressure relief range. Our breather valves are available in a variety of configurations and designs to meet a particular project brief with the primary purpose of preventing the tank against rupturing or imploding.

A New Philosophy for Breather Valves

Elfab’s breather valves have developed from a new valve philosophy; introducing superior, modular designs; a first for the tank protection market. Significant benefits and superior performance can be achieved by moving to these latest breather valve solutions including; interchangeability of parts and reduction of components. Our latest design of breather valves can offer significant performance benefits and cost savings over alternative solutions.

Industry Best Lead times

Elfab leads the industry with its commitment to deliver technically superior products to our global customer base. Due to the unique design and construction of our breather valves we can continue to offer this same superior service and industry best lead-times to customers in the tank protection market.


– Wide range of combinations
– Reduces unnecessary oversizing to achieve significant cost benefits
– Highest flow rates with smaller pressure drops
– Simplified maintenance thanks to easier access to internal parts
– Reduces amount and variation of spare parts
– Increased performance
– Tighter sealing
– Product flexibility thanks to the modular system
– Smaller, lighter and more cost effective solutions
– Suitable for use with our Flame Arrrester product line


In partnership with FNC. 

Contact Elfab about this product
Size Range DN25 to DN300  – different sizes available upon request
Material Range Aluminium, Carbon Steel, Stainless Steel (additional materials available upon request)
Operating Temperature Range -60°C to 400°C
Operating Pressure Range -450 mbarg to 450 mbarg
Setting Pressure Range +2.5 mbarg to +50 mbarg (Upon request until +450 mbarg)
Vacuum Settings -2.5 mbarg to -50 mbarg (Upon request until -450 mbarg)
Calibration Method Weight or Spring
Type of Seals With membrane or metal on metal
Flange Ratings ANSI 150LB – PN 16
Flange Faces R/F & F/F
Connections Flanged