Im not sure on the rpm, but i would guess over 20k rpm. Plenty fast enougth to light an led lol.
A few suppliers make model drain cocks, decent price one here..
https://www.ebay.co.uk/itm/28309632...rand=Unbranded&_trksid=p2332490.c100889.m5204I buy the fittings for my boilers from 'cleavdon steam' he has a nice range of fittings at reasonable prices.
these little items are always quite pricey. im eventually going to convert a little lathe into a turret lathe and knock out batches all my own valves, water guages and safty valves. But thats on the ever growing list of corse.
A few suppliers make model drain cocks, decent price one here..
https://www.ebay.co.uk/itm/28309632...rand=Unbranded&_trksid=p2332490.c100889.m5204I buy the fittings for my boilers from 'cleavdon steam' he has a nice range of fittings at reasonable prices.
these little items are always quite pricey. im eventually going to convert a little lathe into a turret lathe and knock out batches all my own valves, water guages and safty valves. But thats on the ever growing list of corse.