1665 FRP Filter Tank

The 1665 model FRP filter tank is a compact fiberglass-reinforced plastic pressure vessel. With a capacity of approximately 190L and a filtration flow rate of approximately 2 m³/hour, the 1665 is designed for small to medium-sized water treatment systems.
The FRP tank can be loaded with filtration materials such as ion exchange resin, quartz sand, and activated carbon to remove calcium ions, magnesium ions, suspended solids, sediments, color, and odor. It features excellent pressure resistance and corrosion resistance, supporting long-term continuous operation.
The filter tank utilizes a seamless polyethylene (PE) inner liner. The outer shell is made of reinforced fiberglass and high-performance epoxy resin through a 3D winding process.
Compared to steel tanks, FRP filter tanks are lightweight, significantly reducing installation and transportation costs.

• Seamless PE inner liner: Prevents leakage and media contamination.
• High corrosion resistance: Suitable for acidic and alkaline water.
• Lightweight structure: Easy handling and fast installation.
• Smooth inner surface: Reduces scaling and pressure loss.
• Flexible configuration: Supports top inlet and center pipe design.
• Stable pressure performance: Designed for 0.2–0.5 MPa working pressure.

1665 Fiberglass Tank Technical Drawings:

2.5'' opening and base:

The Model 1665 uses a 2.5-inch opening and a standard base. Images of the opening and base are shown below. Alternatively, the Model 1665 can also be used with a 4-inch top and bottom opening; the specific configuration depends on various factors including the piping configuration of the entire water treatment system, pipe location, and the direction of filter media loading.

👉 opening:

👉 base:

1665 FRP filter tank's accessories list:

• A standard storage tank includes the tank itself, as well as the opening and base.
• A complete set should also include core components such as a water distributor, automatic valve, and central pipe, which are not included by default. If you require these components, please specify this when requesting a quote.

How many 1665 FRP vessels can be packed in one container?

The 1665 FRP Filter Tank is suitable for:

• Iron and manganese removal
• Multimedia filtration systems
• Activated carbon filtration
• Water softening systems
• RO pretreatment units
• Residential and commercial water treatment

It supports sand, carbon, resin, and manganese sand media.

 

 

Manganese Sand

The function is to use the manganese sand to oxidize the dissolved divalent iron or divalent manganese into insoluble trivalent iron or tetravalent manganese compounds respectively in water with too high iron and manganese content, and use the backwashing function of the manganese sand filter to achieve the purpose of removal and purification.

 

Quartz Sand

The quartz sand filter is a pressure filter. It uses the refined quartz sand filter material filled in the filter. When the incoming water flows through the filter layer from bottom to top, the suspended matter and colloid particles are removed, thereby reducing the turbidity of the water.

 

Activated Carbon

The main function is to remove large molecular organic matter, iron oxides, and residual chlorine. This is because organic matter, residual chlorine, and iron oxides can easily poison ion exchange resins, while residual chlorine, cationic surfactants, etc. will not only poison the resin but also destroy the membrane structure and make the reverse osmosis membrane ineffective.

 

Resin

It uses the principle of ion exchange to remove scaling ions such as calcium and magnesium from water. It is usually an integrated device consisting of a controller, a resin tank, and a salt tank. The controller can be automatic or manual. The automatic controller can automatically complete the cycle of softening water, backwashing, regeneration, forward washing, and automatic water replenishment of the salt tank. The manual controller needs to complete the above actions manually.

Filter Media Loading Reference:

For 1665 model, the volume is 190L. Therefore, the filter media that can be filled are:

Typical bulk density of filter media used in FRP filter tanks:

• Quartz sand: 1.45–1.65 kg/L
• Activated carbon: 0.40–0.55 kg/L
• Ion exchange resin: 0.65–0.75 kg/L
• Manganese sand: 1.9–2.2 kg/L

Note: Filter media loading is calculated based on bulk density, not material true density.

👉 For detailed calculation methods, please refer to this blog post: How Much Filter Media Fits in Your FRP Tank?

• Designed for potable water systems
• Factory pressure tested
• Stable quality control system
• Certification options available upon request.

Certifications

CE Certificate

NSF Certificate

ISO9001 Certificate

QMS Certificate

EMS Certificate

ASME Certificate

 

Xi'an Ink-blue Environmental Protection Technology Co., Ltd.
Brand: INK-BLUE

We specialize in water treatment equipment manufacturing and export.
Main products include FRP filter tanks, pressure vessels, and membrane housings.

INK-BLUE focuses on reliable quality and long-term cooperation.
OEM and ODM services are supported.

Products are exported to Asia, the Middle East, Europe, and South America.

Packaging & Logistics

• Production cycle: 3-7 working days
• Shipping time: Depends on the shipping method. By sea, it's generally 20-30 days, depending on the shipping company and customs clearance.
• MOQ: 10
• Payment terms: T/T, L/C
• Quality certifications: NSF, CE, ISO9001
• Product colors: Original color and blue are standard colors; other colors require customization.
• Packing: Small-diameter FRP tanks are packaged in cardboard boxes, while large-diameter tanks are packaged with bubble wrap.

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