STAINLESS STEEL MARINE SEAWATER FILTER - WORKING PRINCIPLE OF MARINE STAINLESS STEEL SEAWATER FILTER

STAINLESS STEEL SEAWATER FILTER-STAINLESS STEEL SEA WATER STRAINER

MODEL:FH-AS125S CB/T497-2012

The marine seawater filter is mainly installed in the seawater or fresh water pipeline system of the ship, playing the role of the first coarse filtration.

This marine stainless steel seawater filter - marine stainless steel seawater filter is:

It is composed of cylinder, connecting pipe, flange, basket type stainless steel filter screen, cover plate, cover plate sealing gasket, air vent, sewage plug and cover plate fastener.

Stainless steel marine seawater filter - working principle of marine stainless steel seawater filter:

This marine stainless steel seawater filter - marine stainless steel seawater filter is an efficient and easy to operate manual filtration device. When the stainless steel seawater filter works, the seawater that needs to be preliminarily filtered enters from the inlet, flows through the filter screen, and enters the pipeline required by the user through the outlet for process circulation. The particulate impurities in the seawater (whose diameter is larger than the diameter of the filter screen eye hole of the seawater filter) are trapped in the filter screen and precipitated at the bottom of the filter screen.

Here we give you a brief introduction to the fh-as125s CB / t497-2012 stainless steel seawater filter successfully delivered this time:

It can be seen from the above models that the nominal diameter of this stainless steel marine seawater filter is 125mm (the outer diameter of the steel pipe is 140mm), the material is SUS316L stainless steel, and the structural design is in accordance with the ship standard CB / t497-2012
Fh-as125s CB / t497-2012 marine stainless steel seawater filter - design features of marine stainless steel seawater filter:
1. SUS316L stainless steel is selected as all materials of marine stainless steel sea water filter, which provides great corrosion resistance to a certain extent and ensures its filtration efficiency and long service life.
2. 316L stainless steel basket type filter screen is also used for the filter barrel of the seawater filter bar, which has high strength, high accuracy and corrosion resistance.
3. The marine stainless steel water filter has few vulnerable parts, no consumables, low operation and maintenance costs and simple operation and management.
4. All 316L stainless steel sea water filters are equipped with manual vent valves and manual blowdown valves, which are easy to operate, safe and reliable, environmentally friendly and economical.
5. The marine stainless steel 316 seawater filter has compact and reasonable structure design, small floor area, flexible and convenient installation and movement.

Marine stainless steel seawater filter - marine stainless steel seawater filter applications:

According to the demand and the layout of the ship's water supply system, it can be applied to the following occasions
Stainless steel seawater filter - stainless steel main seawater filter - stainless steel main seawater filter as125s CB / t497
Main engine seawater pump inlet stainless steel seawater filter fh-as125s CB / t497-2012
Auxiliary equipment seawater pump inlet straight through stainless steel seawater filter fh-as125s CB / t497-2012
Fresh water pump inlet stainless steel seawater filter fh-as125s CB / t497-2012
Bulk seawater pump inlet stainless steel seawater filter fh-as125s CB / t497-2012
Air conditioning seawater pump inlet stainless steel seawater filter fh-as125s CB / t497-2012
Stainless steel seawater filter at the inlet of bilge fire pump fh-as125s CB / t497-2012
Fire pump inlet stainless steel seawater filter fh-as125s CB / t497-2012

As125s CB / t497 marine stainless steel seawater filter - technical requirements for stainless steel seawater filter:

Working pressure: ≤ 0.25MPa (if higher working pressure is required, please specify when ordering)
Pressure loss: ≤ 0.05Mpa
Filter precision: 2-10mm
Working temperature: ≤ 100 ° C
Material: SUS304, SUS316, SUS316L, sus2205
Applicable medium: fresh water, sea water and fire water
Scope of application: sea water pump, submarine gate, etc
Performance: acid, alkali and low temperature resistance

MARINE STAINLESS STEEL COARSE WATER FILTER - STAINLESS STEEL SUCTION COARSE WATER FILTER - STAINLESS STEEL SEA WATER FILTER

MODEL:FH-AS150S CB/T497-2012

In the previous article, we introduced a stainless steel seawater filter of as125. I believe you have a preliminary understanding of the stainless steel seawater filter used in the ship pipeline system.
Here we will give you a brief introduction to the precautions and maintenance of the marine stainless steel coarse water filter - stainless steel seawater filter.
First of all, let's understand the installation layout of this marine stainless steel coarse water filter and stainless steel seawater filter in the marine pipeline system (see the pipeline installation diagram below):

Let's learn about this stainless steel marine seawater filter and stainless steel marine coarse water filter as150s CB / t497-2012 from the physical picture below:
Marine stainless steel suction coarse water filter - stainless steel seawater filter instructions:

1. Before installing the stainless steel coarse water filter in the pipeline, please check the nameplate to confirm the maximum pressure and temperature of the filter and whether they are consistent with the performance of your pipeline. Then adjust the installation mode of the filter according to the inlet and outlet directions of the pipeline.
After the above consistency is determined, the installation (before the stainless steel seawater filter and the stainless steel coarse water filter) shall also confirm that the flange and the flange diameter must have sealing gaskets to achieve better sealing performance.

2. After the stainless steel coarse water filter and stainless steel seawater filter are completed, it is necessary to open the seawater inlet valve and the vent valve on the top of (stainless steel seawater filter) (as shown in the following figure):

Let all the air in the marine stainless steel basket type seawater filter be drained. When you see water coming out, you can close the vent valve. At this time, it means that the air inside has been completely drained.
As you know, it is very important to set an exhaust valve at the cover plate of the seawater filter.
According to our experience and customer suggestions, we can set the exhaust valve of the seawater filter into the following styles:

Repair and maintenance of stainless steel marine seawater filter and stainless steel marine suction coarse water filter:

1. We all know that no matter what kind of filter is, its core part is the filter element (that is, the filter cartridge and filter screen) and the filter barrel of the stainless steel seawater filter is composed of perforated plate, handle and zinc block (as shown in the following figure):
2. When the stainless steel seawater filter of the ship works for a period of time, certain impurities are precipitated in the filter cartridge. At this time, the pressure drop will increase and the flow rate will decrease. The impurities in the filter cartridge of the stainless steel filter shall be removed in time to ensure its service life; The specific cleaning steps and methods are as follows:

First, close the sea valve (or other valves connected to both sides of the sea water filter), and then open the vent valve of the stainless steel coarse water filter to check whether there is pressure (if there is pressure, it indicates that the sea valve has leaked, and when there is no pressure, open the cover plate of the sea water filter; then start cleaning the basket type filter bucket inside the filter.
When the filter barrel of the seawater filter is taken out, we will see that there are many sewage impurities in the stainless steel seawater filter shell. At this time, we need to open the drain outlet at the bottom of the filter (as shown below)
Similarly, it is also very important to set the bottom drain outlet for marine stainless steel sea water filter and stainless steel coarse water filter during production. Through experience, we can set the drain outlet in the following ways:

3. After cleaning the seawater filter, place the filter element according to the original method. Pay attention to two points when placing the filter element:

3-1. The opening direction of the filter cartridge of the stainless steel seawater filter shall be aligned with the inlet nozzle of the filter shell (as shown in the following figure), to ensure that impurities will not be missed from the connection gap:

3-2. At the same time, when the pressure is high, the seawater flowing water increases to prevent the filter cartridge from slipping in the water filter. During the design, we reinforced the filter cartridge and the body of the seawater filter. At this time, we also need to tighten the reinforced bolts (as shown in the following figure):

After the basket type filter cartridge is properly installed, we need to install the cover plate of the Shanghai water filter with the original method. Here is a detail that we should pay attention to:

First, check the seal at the cover plate. If it is corroded, replace it. When using the cover plate, please use the method of opposite and diagonal to distribute the pressure on all cover plates. Do not apply excessive force to the bolts and nuts, as this will cause permanent deformation of the filter.
After all the above are installed, we need to test the pressure of this stainless steel seawater filter. At this time, we open the seawater inlet valve and the vent valve on the top according to the previous method, so that all the air in the filter can be discharged. When we see water coming out, we can close the vent valve, which means that the air in the filter has been completely exhausted.

3. When cleaning the seawater filter, we should pay attention to the corrosion degree of the eye hole on the filter cartridge or filter element, otherwise the large-area damaged filter element will make the purity of the filtered medium fail to meet the design requirements, thus causing damage to the pump, instrument and other equipment on the ship's pipeline system. If the filter cartridge has reached the stage where it cannot be used, we need to replace it. The specific replacement measurement method is shown in the following figure:

The marine stainless steel coarse water filter - stainless steel suction coarse water filter - stainless steel sea water filter fh-as150s CB / t497-2012 produced by our factory has the following application fields:

Stainless steel basket type seawater filter, basket type stainless steel seawater filter fh-as150 CB / t497-2012
Stainless steel single seawater filter, basket type stainless steel water filter fh-as150 CB / t497-2012
Stainless steel coarse water filter / stainless steel suction coarse water filter fh-as150 CB / t497-2012
Seawater cooling system stainless steel seawater filter, stainless steel seawater filter fh-as150 CB / t497-2012
Fh-as150 CB / t497-2012 stainless steel seawater filter of central fresh water cooling system
Stainless steel seawater filter for ballast fire fighting system, stainless steel seawater filter for emergency fire pump fh-as150 CB / t497-2012
Main engine seawater pump inlet stainless steel seawater filter / auxiliary engine seawater pump stainless steel inlet seawater filter fh-as150 CB / t497-2012
Fresh water pump inlet stainless steel seawater filter / stainless steel suction seawater filter fh-as150 CB / t497-2012
Bulk seawater pump (imported stainless steel seawater filter) / ice machine seawater pump (imported stainless steel seawater filter) fh-as150 CB / t497-2012
Stainless steel seawater filter at the inlet of daily fresh water pump / stainless steel seawater filter of boiler water supply pump fh-as150 CB / t497-2012

Through our brief introduction today, I hope you have a deeper understanding of as150 straight through stainless steel seawater filter and stainless steel suction coarse water filter.

Coarse water filter - suction coarse water filter - straight through suction coarse water filter as250 CB / t497-2012
Coarse water filter - right angle coarse water filter - right angle suction coarse water filter br250 CB / t497-2012

Today, we will introduce a marine suction coarse water filter. This suction coarse water filter is designed according to our ship piping accessories manual - CB / t497-2012.

CB / t497-2012 standard definition of marine suction coarse water filter:

This standard stipulates that this article (suction coarse water filter) is applicable to the marine pipeline system with seawater or fresh water as the medium.

As can be seen from the title at the beginning, this time we will give a brief introduction to the DN250 coarse water filter:

DN250 refers to the nominal diameter of this suction filter, and the corresponding connecting steel pipe with an outer diameter of 273mm. It can be divided into the following three types according to the pipeline installation layout of the ship and the sea water inlet and outlet direction:
Straight through coarse water filter - straight through suction coarse water filter as250 CB / t497-2012
Right angle coarse water filter - right angle suction coarse water filter brs250 CB / t497-2012
Right angle coarse water filter - left type right angle suction coarse water filter bls250 CB / t497-2012
(Note: the difference between with s and without s is the size of the connecting flange of the suction water filter)

The main technical parameters of as straight through type, BRS and BLS right angle suction coarse water filter are the same:

(suction coarse water filter) type: cylindrical
(suction coarse water filter) working pressure: 0.1-0.5mpa
(suction coarse water filter) design pressure: 0.15-0.75mpa
(suction coarse water filter) main material: Q235-A carbon steel
(suction coarse water filter) coating: epoxy paint / hot galvanizing / plastic spraying

The following three models of DN250 suction coarse water filter show you the details of various aspects:
Straight through coarse water filter - straight through suction coarse water filter - straight through single coarse water filter - straight through basket coarse water filter

Single coarse water filter, single basket straight through coarse water filter as250 CB / t497-2012
As250 CB / t497-2012 central fresh water cooling system coarse water filter, straight through coarse water filter
Coarse water filter of ballast fire fighting system, straight suction coarse water filter as250 CB / t497-2012
Inlet coarse water filter of seawater pump of main engine, straight suction coarse water filter as250 CB / t497-2012
Auxiliary equipment seawater pump coarse water filter, straight suction coarse water filter as250 CB / t497-2012
Fresh water pump inlet coarse water filter, straight suction coarse water filter as250 CB / t497-2012
Coarse water filter at the inlet of bulk seawater pump, straight suction coarse water filter as250 CB / t497-2012
Inlet coarse water filter of seawater pump of ice machine, straight suction coarse water filter as250 CB / t497-2012
Coarse water filter at the inlet of daily fresh water pump, straight suction coarse water filter as250 CB / t497-2012
Inlet coarse water filter of boiler water supply pump, straight suction coarse water filter as250 CB / t497-2012

Right angle coarse water filter - right angle suction coarse water filter - right angle single coarse water filter - right angle basket coarse water filter

Single coarse water filter, single basket right angle coarse water filter brs250 CB / t497-2012
Brs250 CB / t497-2012 marine coarse water filter and right angle coarse water filter of central fresh water cooling system
Coarse water filter of ballast fire fighting system, right angle suction coarse water filter bls250 CB / t497-2012
Main engine seawater pump inlet coarse water filter, right angle suction coarse water filter bls250 CB / t497-2012
Auxiliary equipment seawater pump coarse water filter, right angle suction coarse water filter brs250 CB / t497-2012
Fresh water pump inlet coarse water filter, right angle marine suction coarse water filter brs250 CB / t497-2012
Inlet coarse water filter of bulk seawater pump, right angle suction coarse water filter bls250 CB / t497-2012
Ice machine seawater pump inlet coarse water filter, right angle marine suction coarse water filter brs250 CB / t497-2012
Daily fresh water pump inlet coarse water filter, right angle suction coarse water filter bls250 CB / t497-2012
Inlet coarse water filter of boiler water supply pump, right angle suction coarse water filter brs250 CB / t497-2012

Today, we will discuss with you how to measure the exact size of a certain seawater filter in the ship's pipeline system if it needs to be replaced when our ship is in dock for maintenance, so as to ensure the smooth installation of the new seawater filter.

Let's first look at the corroded Original Seawater filter on the ship:

Because the auxiliary equipment has been working for a long time, its body and filter cartridge have been corroded and cracked to a great extent. It can no longer maintain its work, so we need to replace it.

First, we need to measure several key data:

The section distance from the flange of the seawater filter to the flange is directly related to whether the newly made seawater filter can be smoothly installed in the pipeline system.
The distance between the bottom of the seawater filter and the center of the connecting flange is related to the height of the installation space.
Relevant dimensions of inlet and outlet flanges of seawater filter, including flange outer diameter, flange center distance and flange bolt hole size.
Hole diameter of the filter barrel inside the seawater filter.
Through the above measurement, we draw the production drawing according to the value provided by the customer:

Let's look at this new seawater filter from various angles.

The seawater filter of DN100 can be generally marked as:

Marine suction coarse water filter as100 CB / t497-2012
Right angle suction coarse water filter for marine seawater cooling system as100 CB / t497-2012
Main engine seawater pump inlet straight through seawater filter as100 CB / t497-2012
As100 CB / t497-2012 bulk seawater pump inlet straight through coarse water filter, seawater filter

Special seawater filter for desulfurization tower - Marine anti marine biological seawater filter
Seawater filter with MGPS anti marine biological device

Today we will introduce a special seawater filter to you. As you can see from the above figure, this seawater filter is different from what we usually see. It is equipped with MGPS marine biological protection device.

With the navigation work of the ship, the seawater system on the ship will be corroded and polluted by the body of marine attached organisms, and due to the blockage of seawater inlet, filter, cooler, etc. by marine organisms, the diameter of seawater pipeline will become smaller, affecting the seawater flow and reducing the heat delivery rate, affecting the waste of cost and resources, and affecting the normal operation of relevant equipment.

In recent years, with our understanding of this hazard, marine seawater filters with MGPS anti marine biological devices have been widely used in many new ships.

Below, we will briefly introduce a seawater filter with MGPS anti marine biological device manufactured for customers:

First, we determine the parameters of the seawater filter to be installed:

As type, nominal diameter DN350, working pressure 0.6MPa, design pressure 1.0MPa, body material - carbon steel hot galvanized, filter cartridge material - SUS316L stainless steel, inlet and outlet connecting flange PN10

Secondly, we select the parameters of MGPS protection against marine organisms according to the protection service life:

Seawater flow: 900m ³/ h. One copper electrode and one aluminum electrode, power supply mechanism: 220V / 50Hz, protection period - 5 years.

We look at the physical picture of this seawater filter product with MGPS anti marine biological device from multiple perspectives:

Finally, let's introduce the operation and daily maintenance of this MGPS on board:
1. During the daily inspection of MGPS, the operator shall first read the meter and record the parameters of MGPS.
2. Pay attention to the change of the output current value when the seawater pipeline system is vented. When the salinity is too high or the seawater temperature is too high, the output current will become large. In order to reduce the consumption of the anode, the set value should be adjusted to change the current output. At the same time, the chlorine content in the seawater should be measured to meet the minimum standard for preventing the derivation of marine organisms.
3. Adjust the output current to be constant according to the current flow concentration chart given in the manual. When sailing in the freshwater area or in the freshwater river sea water mixing area, the decrease of the conductivity of water will also lead to the increase of current. On the other hand, the excessive production of sodium hypochlorite will aggravate the generation of magnesium hydroxide (i.e., the white paste attached to the MGPS electrode body during cleaning). At this time, it is necessary to turn off the MGPS. In addition, it is also necessary to turn off the MGPS during hull welding.

MGPS anti marine biological device seawater filter as350 CB / t497-2012
MGPS marine carbon steel galvanized main seawater filter for desulfurization system as350 CB / t497-2012
Special subsea gate for desulfurization tower, MGPS anti marine biological device, seawater filter as350, CB / t497-2012
Special subsea gate outlet of desulfurization system MGPS anti marine biological device seawater filter as350 CB / t497-2012
Special high-level subsea gate for desulfurization tower MGPS anti marine biological device seawater filter as350 CB / t497-2012
Special low sea gate seawater filter for desulfurization system (with MGPS anti marine biological device as350 CB / t497-2012)
Special main engine seawater pump of desulfurization tower (imported MGPS anti marine biological device seawater filter as350 CB / t497-2012)

Competitive advantage:

1. Factory direct sale, competitive price.

2. Customized Service: We can customize, to customers drawings for processing. We are flexible and capable Supplier.

3. Genuine Product with Excellent Quality: Our Product are strictly complied with China Compulsory Certification. 100% guarantee test before delivery.

4. After Sales Service and Technical Assistance: 24 hours technical support by email. Our professional team is always here willing to be your technical consultant.

5. Delivery Time: after receiving the payment within 24-72 hours to Timely arrange raw materials, processing, production, and timely delivery.

Advantages:

1. Excellent and high quality control

2. Fast delivery

3. Competitive price

4. Small order accepted

5. Customers' drawing or samples accepted

6.Assembly line production process, assembly line depth sounding equipment

Delivery time is approx:

1. We will test them strictly before shipping.

2. We will ship it in 1-3 working days after your paying.as to the shipping time,it usually will be 6- 12 days,which will be different for different countries.

3.You can choose DHL, UPS, TNT and other international express for delivery. At the same time, it can also be sent to the freight forwarder designated by the customer (anywhere in China)

FAQ:

1. How about your price?

We specialize in customized high-quality promotional items for you and can help you meet any requirement with the most reasonable price

2. Can you produce the product as our sample or design?

Yes,we can.OEM&ODM are welcome. As long as you give us the detailed specific requirement,we can absolutely make the same samples and send to you for approval.

3. Could you send me all your catalogues and price list?

We have over thousands of products. it is really too hard for us to send you all our

catalogue and price list for you, please let us know the items, size details which you

are interested in, so we can offer you the price list for you reference.

Packaging & Shipping:

Shipping by sea or air Express by DHL, FEDEX,UPS,TNT and so on Packed in standard exporting carton or as your request

TipsTips:

1. Please make sure your address informations correct ,so the parts can safe delivery.

2. When you place orders,please inform me how to make the Commercial invoice(Customs invoice).

3. Customers please leave your contact details,such as e-mail address,mobile no.,when I take delivery,I need the above information,Thanks.

If you have any question,pls feel free to contact us,we are always at your service.

Yangzhou Feihang Ship Accessories Factory is a production enterprise specializing in marine pipe fittings, marine hydraulic valve parts and marine interior armored products.

The marine accessories produced by our company are complete in specifications, such as cast iron, cast steel, bronze and stainless steel, which are widely used in ships, oil and offshore platforms.

All products implement one-stop production line operation, and strictly implement the ISO9001-2000 international quality management system standards, and carry out standardized production and quality inspection.

Companies adhering to the "integrity management, mutual benefit, and common development" business purposes and "excellent products, sincere service, customer satisfaction," the quality management policy, has won the trust of our customers, is now with a number of shipyards, ship owners, and ships The unit has established long-term cooperative relationships, and its products are sold well all over the country and exported to Singapore, Taiwan, Japan, India, South Africa and other countries and regions. And has won the praise of many ship owners at home and abroad. In order to meet the needs of the market and the continuous expansion of the company's business, we are moving towards the goal of “more comprehensive, more professional and better quality” and strive to build one of the ship accessory suppliers recognized by more customers at home and abroad.