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FRP Pressure Vessels - 2.5" NPSM Series for Water Treatment
FRP Pressure Vessels - 2.5" NPSM Series for Water Treatment – Image 2
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FRP Pressure Vessels – 2.5″ NPSM Series for Water Treatment

High-performance FRP pressure vessel featuring a standard 2.5″ NPSM threaded opening. Designed for residential and light commercial water treatment, this tank is universally compatible with Runxin, Fleck, and Clack control valves, making it the ideal housing for water softeners, carbon filters, and RO pre-treatment systems.

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Description du produit

The Backbone of Efficient Water Filtration Systems.

The Stark 2.5″ NPSM Series is our most versatile line of composite fiberglass pressure vessels. Unlike traditional steel tanks that are prone to rust and heavy to handle, our composite vessels feature a seamless high-density polyethylene (HDPE) inner liner wound with continuous fiberglass strands and sealed with high-grade epoxy resin.

This advanced construction ensures 100% corrosion-free performance and zero contamination, making it perfect for drinking water applications and critical RO pre-treatment stages.

Technical Note:
Our tanks undergo rigorous burst pressure and fatigue testing. For detailed structural stress analysis, raw material composition, or specific manufacturing protocols, please reference the official technical data at our specialized manufacturing division:

Stark Tank Manufacturing – 2.5″ NPSM Series Specs

Paramètres du produit

Use the chart below to select the correct vessel size based on your required resin volume or flow rate.

Modèle Volume Capacité Dimensions (Dia x H) Flow Rate (m³/h) B2B Quote
Type US Gal Liters Inch mm Reference Action
STK-713 1.6 6 7″ x 13″ Ø180 x 335 0.3-0.7 Inquiry
STK-717 2.4 9 7″ x 17″ Ø180 x 430 0.3-0.7 Inquiry
STK-735 5.3 20 7″ x 35″ Ø180 x 905 0.3-0.7 Inquiry
STK-817 2.9 11 8″ x 17″ Ø205 x 445 0.3-0.7 Inquiry
STK-835 6.3 24 8″ x 35″ Ø205 x 905 0.3-0.7 Inquiry
STK-844 8.7 33 8″ x 44″ Ø205 x 1130 0.3-0.7 Inquiry
STK-935 8.7 33 9″ x 35″ Ø230 x 905 0.5-1.2 Inquiry
STK-942 10.3 39 9″ x 42″ Ø230 x 1085 0.5-1.2 Inquiry
STK-948 11.9 45 9″ x 48″ Ø230 x 1230 0.5-1.2 Inquiry
STK-1017 4.8 18 10″ x 17″ Ø255 x 445 0.8-1.4 Inquiry
STK-1035 10.3 39 10″ x 35″ Ø255 x 905 0.8-1.4 Inquiry
STK-1044 12.9 49 10″ x 44″ Ø255 x 1130 0.8-1.4 Inquiry
STK-1054 16.4 62 10″ x 54″ Ø255 x 1390 0.8-1.4 Inquiry
STK-1252 22.5 85 12″ x 52″ Ø300 x 1340 0.8-1.5 Inquiry
STK-1265 28.0 106 12″ x 65″ Ø300 x 1650 0.8-1.5 Inquiry
STK-1354 27.5 104 13″ x 54″ Ø330 x 1400 1.2-2.3 Inquiry
STK-1665 49.7 188 16″ x 65″ Ø400 x 1670 1.2-2.3 Inquiry

*Flow rates are for reference only. Please consult our engineers for specific system design parameters.

Industrie concernée

  • Water Softening Systems:
    Ideal housing for cation exchange resin to remove calcium and magnesium hardness in residential and industrial boiler feed water.
  • Activated Carbon Filtration:
    Used for de-chlorination, organics removal, and taste/odor improvement in municipal water supply lines.
  • RO Pre-Treatment:
    Acts as the primary sand/multimedia filter to protect sensitive Reverse Osmosis membranes from sediment and particulate fouling.

Avantage 1

Corrosion-Resistant Composite Construction

Stark FRP vessels are engineered to outlast traditional steel tanks in aggressive water environments. The inner shell is molded from seamless, food-grade High-Density Polyethylene (HDPE), ensuring that water never touches metal. This guarantees zero rust and no heavy metal leaching. The outer shell is reinforced with continuous strands of fiberglass embedded in high-performance epoxy resin, providing a pressure rating of 150 PSI (10.5 Bar) while being 60% lighter than steel equivalents.

Avantage DEUX

Universal Compatibility & Easy Maintenance

Designed with the system integrator in mind, the 2.5″ NPSM threaded top opening is manufactured with precision tolerances to ensure a leak-free seal with all major control valve brands, including Runxin, Fleck, Clack, and Autotrol. The lightweight composite structure simplifies transport and installation, allowing a single technician to position the tank and load media (Resin, Carbon, or Sand) without the need for heavy lifting equipment.

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FAQ

La durée de vie d'un système d'osmose inverse dépend de la qualité de l'eau et de l'entretien. En règle générale, la membrane dure 2 à 3 ans, tandis que le système lui-même peut durer plus de 10 ans s'il est bien entretenu.

Oui, tous nos systèmes sont entièrement personnalisables. Nous analysons vos besoins en matière de rapports sur l'eau et d'applications avant de vous proposer des solutions sur mesure.

Nos produits sont conformes aux normes CE et ISO 9001 et peuvent être conçus pour répondre à des réglementations régionales spécifiques ou à des normes industrielles sur demande.

Les systèmes standard sont expédiés dans un délai de 7 à 15 jours. Pour les commandes personnalisées, le délai peut aller jusqu'à 20-25 jours en fonction de la complexité.

Oui. Nous fournissons une documentation technique complète, des conseils à distance par vidéo et nous pouvons envoyer des ingénieurs à l'étranger sur demande.

Notre devis comprend le système RO complet, le panneau de contrôle, les pompes, les unités de prétraitement et tous les accessoires nécessaires. Les outils d'installation et les pièces de rechange peuvent être inclus sur demande.

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