Autoclaves for Food Sterilisation |
A very common steam application where the M&M piston valve is used is in machines for food sterilisation.
These machines are called Autoclaves.
 |
Food processing obtained through sterilisation consists of: – Steam cooking of food raw materials such as sauces, jams or marmalade; – The packaging of fresh food into jars, bottles, cans or packets with superheated steam. Through heat sterilisation, all micro-organisms dangerous to human health are completely destroyed without toxic residues on foodstuff. |
PLANT DESIGN |
APPLICATION |
||||||||
|
1st Stage – Vacuum Product placed in a sterilizer is closed inside the autoclave. Before starting sterilisation, valves (A)(B) create a –1 bar depression inside the chamber through a vacuum pump. Vacuum is needed to prevent air sacs at not controlled temperatures from creating, which are potentially dangerous to the quality of sterilisation.
2nd Stage – Sterilisation During the sterilisation cycle valve (C) controls steams at 121ºC temperature and 2 bar pressure for a processing time of 10-15 minutes.
3rd stage – Exhaust Once the sterilisation cycle is over, valve (C) closes, valve (D) opens restoring the atmospheric pressure, valves (E)(F) empty water created through steam condensation at 70°C temperature and atmospheric pressure. The port can then be opened to take out processed products.
|
OUR SOLUTION |
The M&M PAV is an ideal valve to use in this application. The valve is fast acting on both air and spring, its durable design provides a reliable and long service, it is also fully repairable/serviceable. The PTFE seals are suitable for temperatures up to 180 degrees C and due to the compact actuator size, it uses a very low air consumption, requiring relatively small air pressures to operate.
|
If you require a valve for controlling steam please contact our technical office to discuss your requirements.
01234 855888
or email sales@v-flowsolutions.co.uk
