FRP Vessel 1665
Model: 1665
Material: PE+FRP
Opening: 2.5 or 4 inches, threaded
Diameter: 16 inches (410 mm)
Height: 65 inches (1660 mm)
FRP Vessel 1665 Volume: 180 liters (47.57 gallons)
Max working temperature: 50℃
Max working pressure: 150 PSI (1.03MP)
Max vacuum: 17KPa(5″Hg)
Flowrate: 3.2-4.5 m³/h
Products Description
In water treatment FRP Vessel tanks, the 1665 model usually has three opening styles: 2.5-inch Top Opening, 4-inch Top Opening, and 4-inch Top and Bottom Opening.
2.5" Top Opening FRP Vessel 1665 has a 2.5" diameter opening at the top. This opening size is suitable for smaller pipe connections or for connecting smaller accessories. It is commonly used in water treatment systems for filling and replacement of filter media.
The 4" Top Opening 1665 FRP Tank has a 4" diameter opening at the top. This larger opening size is suitable for larger pipe connections or for connecting larger accessories. It is typically used in water treatment systems that require higher flow rates and treatment capabilities.
4" Top and Bottom Opening 1665 FRP filter tanks feature 4" diameter openings on both the top and bottom. This design allows the water treatment system to have media loading and discharge at the top and bottom of the tank. It provides greater flexibility and ease of operation and maintenance.

Features of FRP Vessel 1665
1. High-Performance HDPE Liner
The vessel features a high-performance HDPE liner that is safe for human use. It can withstand low temperatures, has a long lifespan, and allows for filling with various filter materials, providing flexibility in water treatment applications.
2. Fiberglass Shell Construction
The vessel is made of a fiberglass shell, which gives it a beautiful appearance and makes it suitable for commercial and industrial water treatment. The fiberglass construction offers excellent corrosion resistance, ensuring the vessel's longevity.
3. Versatile Application
The FRP Vessel finds wide applications in water and wastewater purification treatment, including media filters and water softeners. It is also suitable for use in fields such as food environmental protection, making it a versatile choice for different industries.
4. Tight Mouth Design
The FRP tank body is formed by winding fiberglass-reinforced plastics, and the tank mouth adopts a one-piece molding technology. This design ensures clear threads and a tight fit, preventing leakage and ensuring efficient operation.
5. Filter Media Selection
The vessel allows for filling various filter media based on specific needs. Options include activated carbon for removing odors and enhancing taste, resin for reducing water hardness and addressing scaling issues, quartz sand for removing suspended solids and large impurities, and manganese sand for removing manganese, iron, and other elements.
Technical Parameters
| Product type | FRP filter tank |
| Model | 1665 |
| Material | PE+FRP |
| Opening | 2.5 inch, threaded |
| Diameter | 16 inches (410 mm) |
| Height | 65 inches (1660 mm) |
| FRP Vessel 1665 Volume | 180 liters (47.57 gallons) |
| Max working temperature | 50℃ |
| Max working pressure | 150 PSI (1.03MP) |
| Max vacuum | 17KPa(5″Hg) |
| Flowrate | 3.2-4.5 m³/h |
| Weight | About 16kg |
1665 FRP vessel technical drawing:

How many 1665 FRP vessels can be packed in one container?
| 20GP | About 90pcs |
| 40HG | About 190pcs |

1665 FRP vessel Customer Case
Commercial Water Filtration Project – Southeast Asia
A commercial building project required a compact and stable filtration vessel for pretreatment.
INK-BLUE recommended the FRP Vessel 1665 with 4-inch top opening, loaded with quartz sand and activated carbon.
Result:
- Stable operation at 4 m³/h
- Easy installation and maintenance
- No leakage reported after long-term operation
The customer later expanded the project using multiple INK-BLUE FRP vessels.
Company Strength – INK-BLUE
- TOP Experts in Water Treatment Equipment Customization: Ink-blue Environmental Protection Technology boasts a team of experts who specialize in creating tailored plans for water treatment equipment. They are capable of delivering comprehensive and professional matching plans based on the specific requirements and circumstances of each customer. These plans encompass various aspects, such as recommending the appropriate size of FRP tanks, selecting the suitable valve head type, determining the type and quantity of raw materials utilized in the FRP tanks, and considering the need for additional components like salt boxes. We are available at your convenience to provide further details. Please feel free to contact us anytime.
- OEM Service and Customizable Color Options: Our FRP pressure vessel supports a range of colors. You can choose from various options such as natural color, blue, gray, black, and more. At the same time, we support OEM, and customers can add their logos to the products.
- Powerful Production Capacity: Our factory boasts a robust production capacity, enabling us to efficiently handle customer orders. With our prompt responsiveness and streamlined production processes, we ensure swift manufacturing to minimize lead times and ensure that customers receive their goods in the shortest possible timeframe.
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.

FAQ
Q1: What filter media can be used in the 1665 vessel?
Quartz sand, activated carbon, resin, and manganese sand.
Q2: Can I choose top & bottom openings?
Yes. 4-inch top & bottom opening is available.
Q3: Is OEM branding supported?
Yes. INK-BLUE supports OEM logo and color customization.
Q4: What is the typical service life?
10–15 years under normal operating conditions.
Q5: Do you provide technical support?
Yes. Our engineers provide selection and installation guidance.
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