Marine Use 53-on Nikura Air Vent Head Air Pipe Head

• Usage: Marine
• Certification: ABS
• Transport Package: Wooden Case
• Specification: DN50-200
• Trademark: RKFM
• Origin: Qingdao China
• Model NO.: 53-on
• Production Capacity: 50000/M

Product Description

Marine Cast Iron 53ON Air Vent Head:

Air Vent Head can be called as air pipe head, is used for the ventilation of the oil tank or water tank on the vessel.
Design Standard: JIS F3012-1990
Test Standard: JIS 7400-1996
Flange size as per JIS B2220 - 5K
* The flange size also can be manufactured according to 10K, 16K.
 

Function of Air Vent Head:

Air Vent Head (Air Pipe Head) is check valve used for the ventilation system of oil tank or water tank. It keeps the tank pressure as the design pressure by breathing or inhaling. When the pressure is high, it breathes. When the pressure is low, it inhales. And it also have the function of preventing the sea water, rain, insect, mouse and spark into the tank.

Main Material:

Body: FC200/FCD450 (Cast Iron/Nodular Iron)
Float Disc: SUS304 (Stainless Steel)
Rubber Ring: NBR
Screen: SUS304 (Stainless Steel)
Cover: Carbon Steel with Galv

Main Size List(mm):

Nominal Size	d	L1	L2	L3	H	D	C	W	Weight (kgs)
50	50	75	103	75	180	130	105	135	7
65	65	85	120	85	210	155	130	155	9
80	80	90	153	100	245	180	145	190	14
100	100	110	160	110	270	200	165	225	16
125	125	130	195	130	310	235	200	265	23
150	150	155	225	150	355	265	230	300	33
200	200	200	295	180	440	320	280	400	56