A: Yes this should work fine in that application.
A: Thank you for contacting Danco. Yes this size packing will work for your application.
A: I had a similar issue with my washing machine. This valve packing didn't fit the small opening i had between the threads so i ended up using a smaller size one. 3/32" graphite packing valve.
A: Yes to should. Heat or steam doesn't effect Teflon that much.
A: Thank you for your interest in Danco products. We have only tested this product in, and warrant its suitability for, residential plumbing applications. We cannot recommend anything else.
A: It should work, but remember this is essentially a polymer, so it is not as good for high temperatures as a graphite-based packing.