Steel composite tank at the loading and unloading port, non-disassembly valve replacement type refueling pressure vessel, lateral feeding, quick maintenance

Assembly (Loading/Unloading Port) FRP Composite Tanks are engineered for efficient, durable material handling in water treatment and fluid storage scenarios:


Reinforced Structure: The tank body is reinforced with epoxy resin + fiberglass winding, ensuring excellent structural strength and corrosion resistance.


Dual Port Design: Equipped with 4-inch/6-inch flange ports for upper loading and lower unloading (with 6-inch flanges for both upper and lower ports). The tank mouth is seamlessly connected to the PE inner liner via one-piece rotational molding, making loading/unloading more convenient while reducing damage to valves and water distributors.


Food-Grade Liner: The rotational-molded inner liner uses food-grade PE material—non-toxic, tasteless, and highly hygienic, meeting safety standards for water contact applications.


Durable Port Material: The 4-inch and 6-inch flange ports are made of aviation aluminum modified material, enabling stable pressure bearing and long service life even in complex media environments.

These tanks combine user-friendly operation, reliable performance, and hygienic safety, making them ideal for diverse industrial, commercial, and civil fluid processing systems.

[Core Specification Parameters Table]

【Product Overview】
The fiberglass reinforced plastic composite tank series for loading and unloading is a novel pressure vessel specially designed for water treatment systems that require frequent replacement of filter materials (such as activated carbon, ion exchange resins, quartz sand, etc.). The innovation lies in the fact that the tank’s side is equipped with a dedicated loading and unloading port, allowing maintenance personnel to directly and quickly add and replace the filter materials without having to dismantle the top valve, bottom water distributor, or any piping. This design completely revolutionizes the maintenance process of traditional filter tanks, significantly protecting the internal precision components, greatly reducing maintenance time, labor costs, and operational difficulty. It is an ideal choice for industrial and commercial filtration systems that aim for efficient operation and maintenance.

Product Advantages

1.Installation conditions:No affected by weather or climate
2.Material properties: high quality pp/PE composite material; anti-acid,alkali-resistant ,pull-resistant
3.Small liquid resistance:smooth inner wall and low friction result
4.Long life-spans :over the 50 years in normal pressure working
5.Excellent impact resistance in low temperature
6.Good tightness ,no leakage, preventing the pollution of traditional the septic tank ground water leakage
7.Large mechanical strength:,high ring stiffness to up to the SN20,no easier to be cracked
8.Smooth inner wall;long clearing period;convenient clearing;saving maintenance costs
9.Working temperature:-100 degree to 200 degree
10.Installation freely and eliminates need for gravel and heavy machinery
11.Eco-friendly,recycle material and reducing carbon footprint

Application scenarios

1. Industrial Water Treatment with multi-layer media
2. Water Softening
3. Centralized Filtration System for high rise residential and commercial buildings such as residence, high rise office building, hotels and resorts.
4. Aquaculture, fish farming filtration system
5. Many other water filtration and treatment applications.
6.Grease Trap or Interceptor