Air 
Gas
DN50 - DN350 (2" - 14")
ANSI Flanges
We have a wide variety of quality valves in our catalogue which include:
This vacuum relief valve is built for applications dealing with air and gas mediums. Available sizes range from DN50 to DN350 (2″ – 14″) with ANSI flanges. The body materials include Aluminium, Carbon Steel, SS304, and SS316 with various trims. The operating pressures range from a minimum of -20 mmW.C to a maximum of -9,000 mmW.C. This vacuum valve is approved according to API 2000 & ATEX standards.
This vacuum relief valve is suitable for air and gas applications. It comes in sizes from DN50 to DN350 (2″ – 14″) with ANSI flanges. Body materials consist of Aluminium, Carbon Steel, SS304, and SS316 with different trims. It can handle operating pressures ranging from a minimum of +/- 20 mmW.C to a maximum of +/- 9,000 mmW.C. It meets API 2000 & FM factory mutual approval standards.
These valves are great for air and gas applications with reliable precision. Available body materials include aluminum, carbon steel, 304 stainless steel and 316 stainless steel, each paired with a choice of trim options. These valves operate across a range from ±20 mmW.C to ±9 000 mmW.C and comply fully with API 2000 standards.
Trust in our expertise for effective and reliable flame arresters and tank venting equipment.
Pressure Systems offers vacuum relief valves honed by more than forty years of valve-engineering experience. Every unit meets strict manufacturing and testing benchmarks, backed by a nationwide support network and ready access to spare components. The result is reliable protection against overpressure, delivered without slowing down your processes.
When it comes to safety and precision, there is absolutely no room for second-guessing. Pressure Systems should be your top choice for superior vacuum relief valves. By choosing us, you are not just buying a product — you are investing in decades of industrial knowledge, an unwavering commitment to customer satisfaction, and a history of excellence.
With more than forty years of service, we possess the knowledge and expertise to provide you with the highest quality vacuum breaker valves. Our lengthy experience has afforded us deep insights into the evolution of safety standards and the latest technological advancements.
As a company that is owned and operated in Australia, we understand the unique requirements and challenges faced by our local customers. We take pride in our ability to provide solutions that meet the distinctive needs of the Australian market.
When a line goes down, waiting isn’t an option. That’s why we’ve set up fast lanes through our network of contacts so we can ship standard parts or custom assemblies in a matter of days, not weeks. You’ll have what you need, when you need it.
Every process is different. We’ll help you select the ideal materials, setpoints, and capacities to safeguard your equipment against overpressure. From oil & gas platforms to chemical reactors, our valves are configured to perform reliably under your exact conditions.