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FRP tanks

Overview

FRP Tanks(Fibreglass Reinforced Plastics) are composite vessels designed for applications where steel corrodes, and polyethene cannot handle the pressure. The fiberglass shell bonds to a polyethene liner during filament winding, producing a structure that holds up against aggressive chemicals, high-cycle pressure loading, and outdoor conditions that would degrade a metal tank within a few years.

Brother Filtration supplies FRP pressure tanks in more than 80 standard configurations, from 6-inch vessels used in residential softeners to 83-inch large-volume tanks used in municipal water treatment and industrial process systems. Every tank is built with a PE liner and FRP filament winding, manufactured and tested to NSF and CE-certified standards.

FRP pressure vessels are widely used across water treatment, wastewater, and municipal systems, chemical processing, food and beverage production, industrial manufacturing, and agricultural irrigation.

Why FRP Outperforms Steel and Polyethene?

The choice between FRP steel, and polyethene comes down to what the vessel holds, for how long, and under what pressure.

Property FRP (Fiberglass) Carbon Steel Polyethene (PE)
Corrosion resistance Excellent, unaffected by most acids, alkalis, and salts Poor, requires lining or coating for chemical service Good, but limited pressure range
Operating pressure Up to 150 PSI standard High, but significantly heavier Low, typically 15–30 PSI max
Weight Light, roughly a quarter the weight of equivalent steel Heavy Light
Lifespan 20–30 years in chemical service 5–15 years without relining 10–20 years with UV degradation risk outdoors
Maintenance Minimal,  no painting, no relining required High, regular surface treatment needed Low
Food contact compliance NSF/ANSI 61, FDA-grade liner available Requires food-grade lining Available in food-grade grades
Contamination risk None, smooth PE liner, no rust or flaking Risk of rust particles in fluid None

The practical advantage in filtration is straightforward. The PE liner eliminates the corrosion paths that cause steel tanks to develop pinhole leaks over time. In chemical service involving brine, chlorine, or acids, this is not a minor benefit; it is why FRP became the standard material for this class of application.

Highlights

Brother Filtration, as a filtration production, provides more than filter products. We also offer high-quality spare parts for filtration, we want to make it convenient and easy for our customers to purchase.

  • PE liner with FRP filament winding
  • High quality but competitive cost
  • Full choice of pressure tanks from 6”- 83” inch
  • Diameter and from 13”- 110” in height
  • Available in various color

Brother Filtration provides FRP Tanks of various sizes and colors to fulfill customers’ needs. We provide only high-quality and high-standard products, no matter filter products or spare parts.

  • Compared with a tank with a hand layup molding discharge port, more stable in quality and better in sanitary condition
  • Easier to discharge filling compared with normal PE liner tank
  • Lower maintenance costs and time
  • Resistance to rust, corrosion, heat, and extreme condition
  • Resistance of impact and abrasion

Operating specification

Operating Pressure 10.5Bar  ( 150psi )
Operating Temperature 1-49℃  ( 34-120℉ )
Max Vacuum 127mm Hg  ( 5’Hg )
Lowest Exposed Temperature -27℃  ( -17℉ )

Order Information

D Series FRP Pressure Tank Product Parameter

Three-port configuration (top inlet, bottom outlet, side discharge). Designed for media-loaded vessels in water softening, iron removal, and multi-media filtration. Available in large-diameter formats from 42″ to 72″. All D Series tanks operate at 150 PSI with 6″ flange connections on top and bottom openings.

Model Vessel Size Pressure Opening Discharge Opening Dimension/mm Volume
inch mm PSI Top Bot LA LB LC D
42*72,6T6B4D 42*72 1088*1850 150PSI 6″flange 6″flange 4″flange 1850 1615 235 1088 1100
42*89,6T6B4D 42*89 1088*2270 150PSI 6″flange 6″flange 4″flange 2270 1950 320 1088 1389
48*72,6T6B4D 48*72 1218*1850 150PSI 6″flange 6″flange 4″flange 1850 1565 285 1218 1308
48*89,6T6B4D 48*89 1218*2270 150PSI 6″flange 6″flange 4″flange 2270 1950 320 1218 1743
48*94,6T6B4D 48*94 1218*2400 150PSI 6″flange 6″flange 4″flange 2400 2110 290 1218 1909
48*110,6T6B4D 48*110 1218*2800 150PSI 6″flange 6″flange 4″flange 2800 2510 290 1218 2360
60*94,6T6B4D 60*94 1530*2400 150PSI 6″flange 6″flange 4″flange 2400 2110 290 1530 2688
60*110,6T6B4D 60*110 1530*2800 150PSI 6″flange 6″flange 4″flange 2800 2510 290 1530 3392
63*83,6T6B4D 63*83 1620*2100 150PSI 6″flange 6″flange 4″flange 2100 1780 320 1620 2580
63*94,6T6B4D 63*94 1620*2400 150PSI 6″flange 6″flange 4″flange 2400 2080 320 1620 3150
★72*94,6T6B4D 72*94 1836*2400 150PSI 6″flange 6″flange 6″flange 2400 2045 355 1836 3561
The actual dimension may have±1.2% error due to PE materials contraction coefficient

H Series FRP Pressure Tank Product Parameters

Top and bottom openings only, no side discharge port. Suited for fluid-service applications including RO pre-treatment, closed-loop pressure filtration, and pressure storage. Available in diameters from 21″ to 63″ with threaded (4″-8UN) or flange (6″ flange) connections, depending on size.

Model Vessel Size Pressure Opening Discharge Opening Dimension/mm Volume
inch mm PSI Top Bot LA LB LC D
H2162/4T-R 21×62 550×1650 150PSI 4″-8UN / / 1650 1600 / 550 326
H2162/4T 21×62 550×1910 150PSI 4″-8UN / / 1910 1600 / 550 326
H2162/4T4B 21×62 550×1910 150PSI 4″-8UN 4″-8UN / 1910 1590 320 550 326
H2472/4T-R 24×72 615×1890 150PSI 4″-8UN / / 1890 1839 / 615 471
H2472/4T 24×72 615×2150 150PSI 4″-8UN / / 2150 1839 / 615 471
H2472/4T4B 24×72 615×2150 150PSI 4″-8UN 4″-8UN / 2150 1830 320 615 471
H3072/4T-R 30×72 780×1860 150PSI 4″-8UN / / 1860 1839 / 780 758
H3072/4T 30×72 780×2150 150PSI 4″-8UN / / 2150 1830 / 780 758
H3072/4T4B 30×72 780×2150 150PSI 4″-8UN 4″-8UN / 2150 1830 320 780 758
H3672/4T4B 36×72 918×2150 150PSI 4″-8UN 4″-8UN / 2150 1830 320 918 1023
H3672/6T6B 36×72 918×2260 150PSI 6″flange 6″flange / 2260 1940 320 918 1023
H4272/6T6B 42×72 1088×2270 150PSI 6″flange 6″flange / 2270 1950 320 1088 1389
H4872/6T6B 48×72 1218×2270 150PSI 6″flange 6″flange / 2270 1950 320 1218 1743
H6370/6T6B 63×70 1620×1780 150PSI 6″flange 6″flange / 2100 1780 320 1620 2580
H6383/6T6B 63×83 1620×2080 150PSI 6″flange 6″flange / 2400 2080 320 1620 3150
The actual dimension may have±1.2% error due to PE materials contraction coefficient

Ready to Choose the Right FRP Pressure Tank?

Selecting the correct FRP tank isn’t just about size: it’s about performance, lifespan, and compatibility with your specific application. Whether you need a media-loaded filtration vessel (D Series) or a standard pressure tank (H Series), Brother Filtration offers tested, NSF-certified solutions built for long-term reliability.

Get the exact tank for your system

Request a quote or speak with a technical expert today to find the best-fit FRP pressure tank for your application.

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