Sample air and oil removal plug DIN 42558 is used for venting or draining. Sizes 6 and 12 are for venting, 6A and 12A for draining. Sample air and oil bleed plug plug plug is used to drain oil from pipes or radiators.
Air can enter the partial cavity to be vented by means of the closing part for ventilation (milled ball screw) and air can escape when the oil is filled.
Caps are optionally available in stainless steel (A2 and A4 grade) and duplex steel (1.4462) for OFFSHORE application