Cast Iron 53ON Air Pipe Head:

China Cast Iron 53ON Air Pipe Head:

Cast Iron 53ON Air Pipe Head is also called as 53ON Air Vent Head or Nikura Air Vent Head/Air Pipe Head.It is a kind of check valve for the ventilation of the oil tank or water tank on the vessel.When the tank pressure is higher or lower than the the atmospheric pressure, the air vent head will breathe or inhale to keep the tank pressure not over the design pressure. The air vent head also can prevent the water,rain,worm,mouse,spark..etc. into the tank.

Technical Specification:

Flange Standard: JIS B2220 FF- 5K/10K/16K

Nominal Size: DN50~DN200

Certificate: CCS

Material for Air Pipe Head:

Main Data for Joining(mm):

Remarks: The flange size in the above list is based on JIS 5K.