DIN Reg Thread Maintenance Lubrication

[JonnieB]

I find that over time, the threads on my DIN regulator become increasingly difficult to wind into my cylinder valves. Is there any recommendation to prevent this, i.e. lubricate them. Can I spray the threads with a light coating of scuba silicone spray?

 

[NothingClever]

Yeah, last weekend I struggled to get my DIN valve completely seated. Time to hit it with some vinegar and a toothbrush.

 

[happy-diver]

Rotary tool dry, crack valve to clean

or phosphoric acid, dunk in hot water crack valve to clean

No schpritzing no lube

 

[rhwestfall]

No to lube!

 

[Divin'Papaw]

I find that over time, the threads on my DIN regulator become increasingly difficult to wind into my cylinder valves. Is there any recommendation to prevent this, i.e. lubricate them. Can I spray the threads with a light coating of scuba silicone spray?

NO NO NO NO to lube!!! You need to lightly clean the threads as @NothingClever suggested, or have it serviced at which point they should clean it thoroughly in an ultrasonic cleaner. If it isn't due for service, use water and a toothbrush, possibly with some white vinegar, to clean up the salt buildup. Be sure and thoroughly rinse after and also, of course, do not get any water down into the opening.