Seawater salt resistant Ventilating Louver | Shinohara Electric Co.,Ltd.

TOP ＞Product＞Louver＞Seawater salt resistant Ventilating Louver・Powerful water proof louver

Louver


Ventilating louver (Steel Type and Stainless steel Type)	Ventilating louver (The replacement of the filter at the front side)	Powerful jet-proof type louver	Double structure type louver

Seawater salt resistant type louver	Plastic Louver(Front opening and closing type)	Low profile jet-proof type louver	NEW The salt-resistant thin type jet-proof louver

Seawater salt resistant Ventilating Louver RoHS compliant IP4X

Installation Method

Panel cutting area

②

③

⑤

④

①Ventilating
louver
②Water-proof
packing
③Holding frame
④Seawater
salt resistant filter
⑤Filter holding
frame

①

Part No.	Application	①Ventilating louver	②Water-proof packing	③Holding frame	④⑤filter	（a）Size
G1-15S-SET-S	Seawater salt resistant type	G1-15S	Standard equipment	Seawater salt resistant type	G15S-WST(filter integrated with holding frame）	200
G1-20S-SET-S	Seawater salt resistant type	G1-20S	Standard equipment	Seawater salt resistant type	G20S-WST(filter integrated with holding frame）	250

②Water-proof packing

③Holding frame

Hexagonal nut

①Ventilating louver

250

29.5

(2.3)

(a)

Panel washer

Panel

④Seawater
salt resistant filter

⑤Filter holding
frame

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Powerful water proof louver ( Seawater salt resistant Type) IP55 RoHS compliant

Airflow vs. Initial pressure drop Characteristics

1) Low pressure drop type ( about one half of the normal type product )
2) High capture grade product for seawater salt particles
3) Long usage life ( about two times than the normal )
4) Low pressure drop even if the deliquescence of salt particles will happen at the surface of the filter layer.
5) Less re-coming out of the seawater salt particles captured at the filter to the inlet direction, even if the deliquescence of salt particles will happen at the surface of the filter layer
6) High shock-resistant characteristics

T Y P E	Part No.	Size				Material and Specification					Panel opening area （cm²））
T Y P E	Part No.	A	B	C	D	①Ventilating louver	② Blow prevention cover	③Holding frame for the body	④Water-proof packing	⑤dust-proof filter	Panel opening area （cm²））
15	G2-15BF-AST	200	150	145	185	Stainless steel 1.5mm thick	Stainless steel 1.5mm thick	Stainless steel 1.5mm thick	Neoprence sponge rubber	Salt resistant filter P/N：G15BF-FST	75
20	G2-20BF-AST	250	200	194	235					Salt resistant filte P/N：G20BF-FST	100
30	G2-30BF-AST	350	300	303	335					Salt resistant filte P/N：G30BF-FST	216
45	G2-45BF-AST	500	450	453	485					Salt resistant filte P/N：G45BF-FST	335
Remarks						Stainless steel:hairline finishing				Aluminum frame included

■The life of the salt resistant filter

The life of the salt resistant filter is generally considered from a half year to one year.
(The life above mentioned is just a indication and will depend upon the condition of the place installed.)
The following factors will influence the life of the filter.

1.	The increase of pressure drop through the filter will depend upon accumulation of air dusts and seawater salt particle. ( The color and the deformation of the filter will change as mentioned above.)
2.	The performance of the filter will be decreased by the accumulation of air dusts. It will show the abnormal increase of pressure drop and make re-diffusion of seawater salt particles to the inlet.	The Photomicrograph of surface state of the filter used at the inlet side
3.	The deterioration of the filter will be made by the surroundings. (The long term usage and the chemical reaction with the exhaust gas will influence the characteristics of the filter. ) In order to have good performance of the salt resistance filter, maintain the surrounding of the facility ,where the salt resistant filter will be installed, better and also to lighten the burden of the filter system and run the system economically, the filter had better be replace with the new one periodically.

■The Particle size distribution of state of filter used at the inlet side

First layer

Particle size(μm)

Weight
concentration
(μg/m3)

Small dust

Coarse dust

Salt particles

Third layer(Want repellent layer

Second layer(Salt absorption layer)

The seawater salt particles along the beach are two peaks for their particle distribution such as less than 1.0 μm and near 5 μm and as about 70% of the particle are included in the particle size between 2.0 μm to 7.0 μm, it can be captured easily.
The material of the filter has the two layers such as the salt absorption layer (Second layer) and the water repellent layer ( Third layer ) and those are combined to make good performance of the filter by varying the ratio of each layers.)
Therefore at the time when the deliquescence of seawater salt particles attached to the filter under high temperature and humidity condition the salt in the liquid state will not spread out at the surface of third layer such as water repellent layer and it will come to liquid drops. And then the pressure drop of the filter can be suppressed. As at the same time the seawater salt particles will be absorbed to the second layer rapidly and maintained, the salt particles cannot be re-dispersed to the inlet direction.And the pressure drop can be suppressed by the special structure of the second layer of the filter.

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