Alfa Laval Safety Valve
Hygienic Tank Safety Valve
The Alfa Laval Safety Valve is a flexible, hygienic spring-loaded relief Valve designed to prevent pressure buildup in process tanks, vessels, and equipment due to blocked discharge, thermal expansion, chemical reactions, or a combination of these factors.
In hazardous situations, the Valve is engineered to open when the pressure reaches a predetermined level. The compressed spring keeps the Valve closed below this set pressure, but when pressure increases at the inlet, the spring is overcome, causing the Valve to open and release the excess pressure. Once the system pressure normalises, the Valve closes again.
Safety Valve Benefits
- Prevents unsanitary leakage and overflow
- Comes in sizes from DN25 to DN100
- Pneumatic or manually operated
- Safeguards against accidents due to overpressure
- Optional manual or automated overwrite for valve cleaning
Temperature
Temperature range: +4 °C to +95 °C
Max. sterilisation temperature, dry steam: 140 °C (Max 30 min)
Materials
Product wetted parts: 1.4404 (316L)
Other steel parts: 1.4301 (304)
Seals: EPDM
External finish: Ra 1.5-2.5 µm
Internal finish: Ra 0.8 µm
Connections: Inlet: Liner/nut DIN 11851
Outlet: Male DIN 11851
Safety Valve Technical Data
Download the Full
Specification Sheet
How the Safety Valve Works
The Alfa Laval Safety Valve prevents overpressures of fluids in tanks, containers and plant sections. It is factory-configured with a preset pressure value that is greater than the intended operating pressure. If the operating pressure rises above the preset value, the Valve opens against the spring force to relieve pressure.
Operating Principle
The Valve should be installed in a vertical position for optimal performance. If mounted in a horizontal position, the set pressure will be somewhat lower than specified due to the lack of weight from the piston. The highest effect is obtained using DN80 and DN100.
Safety Valve Product Documents
Recent Success Story
Dairy Expansion Increases Production Capacity, Hygiene, Uptime, and Savings
To boost productivity, the TINE Dairies, Norway’s largest producer, distributor and exporter of Dairy products, selected Dairy equipment from Alfa Laval based on proven safety, hygiene and economy.
Extend the performance of your Valves
Safety Valve
Servicing & Maintenance
Alfa Laval Safety Valves are built for a wide range of duties across the Dairy, Food, Beverage, Personal Care, Biotechnology and Pharmaceutical industries.
Related Industries
Alfa Laval technologies improve sustainability through enhanced efficiency, reducing waste and emissions, while increasing yields and end product quality.
Alfa Laval provide high-performance components to maximise efficiency in applications across the Dairy industry, from yoghurts and cheeses to milk, cream and butter.
Alfa Laval’s range of solutions are centred around increasing output while minimising contamination and enhancing efficiency,
making them ideal for applications in the Personal Care industry.
