A non-return valve for the oil industry is used, as I have heard, but I have bought it for other purposes and I know where a non-return valve for the oil industry is sold, you can buy it from this shop dual plate check valve https://www.tanghaivalve.com/dual-plate-swing-check-valve-th-ckv-dps/ . Here's a link to that valve. It's a pretty reliable shop that sells good quality check valves that will last a very long time and will never need replacing. The prices are also very good.
To Top