CPC Subgroup
F16J 15/30 with sealing rings made of carbon
Full Title
Sealings > between relatively-moving surfaces (F16J15/50, F16J15/52 take precedence; bellows pistons F16J3/06; piston-rings or ring sealings of similar construction F16J9/00) > with stuffing-boxes for rigid sealing rings > with sealing rings made of carbon