Where can I get a rubber ring for my 10 litre Bertone pressure cooker?

not sure what the thing is
if it is a pressure release this may be the part
http://www.appliancespares.co.za/5949/tedelex%20pressure%20cooker%20lid%20lock%20pressure%20valve.aspx
Would suggest contacting appliance spares and see if it is the part you need ?

I have a Tricity TSC09 6 litre Slow Cooker and I just love it its so handy, if your gone for even 10 hours it keeps your dinner warm after the cooking time runs out. I smashed the lid and was so gutted I tried for hours online to find a replacement lid with no luck. I went shopping and bought a very cheap 6 to 7 Quart or 6 to 6.5 litre Slow cooker / Crock pot of the same shape the removable pot and lid fit. I bought a cookworks, signature, 24 euro 6.5 litre oval dog standard slow cooker and the lid fit, now I also have a removable pot replacement as well just in case I smash that too. So happy I have my Slow cooker back again.

This Tower pressure cooker has Gasket External Diameter approx 25.5 cm and Internal Diameter approx 23 cm.

You can order it from this link:

https://gandhiappliances.com/products/gasketring-for-vinod-stainless-steel-pressure-cooker

Take the rubber ring out of the lid.
Wash it with warm soapy water.
Dry it.
Oil it with vegetable oil.
Now do you see how the rubber ring has a groove around it on the inside? Push your thumb into the groove and work it around the ring, you're trying to spread the rubber V out.

Put it back in the lid and take it for a test run.

In the future store your cooker with the lid upside down on top, keeping it closed will ruin the seal.

If it still won't seal replace the rubber parts, you can get a kit for your cooker from presto.

Regards

TickMagnet.

1. it is best to replace the top-corner rubber seal before a year have passed, as a prevention measure to retain moisture and pressure (contact their official line or site, to verify this is the right part for your model):
http://cuckoomallusa.com/index.php/shop/accessories/cover-pack/ccp-10.html
:
2. if however you have used it extensively, and cooked more than rice in it : the metallic cover itself may have deformed (difficult to be verified visually by looking at it) in which case the whole top replacement will be considerable that it would be more efficient to buy a new one .
:
from your inquiry that it won't pressure-cook any more and it is getting messy : I would deduct it would be the latter case above .

I too have this cooker and the rise part never rises, I find that I have to hold the handles in such a way as to help it reach pressure and then the little pin rises.You have to have the cooker gauge pointing to the left.

Need to have new rubber installed on my pressure cooker lid, but cannot find anyone to do it. Presto says they do not do the labor but will send me the rubber???? Any suggestions?