High-quality R8040-600PSI Membrane Housing-Hydrofluoric Acid Resistance

High-quality R8040-600PSI Membrane Housing-Hydrofluoric Acid Resistance

RO (Reverse Osmosis) Membrane FRP Pressure Vessels

Definition & Function
RO Membrane FRP (Fiberglass Reinforced Polymer) Pressure Vessels are structural containment systems designed to house spiral-wound reverse osmosis membrane elements. They maintain sustained hydraulic pressure (typically 150-1,000 psi / 10-69 bar) required for efficient salt rejection and permeate production in desalination, wastewater reuse, and ultrapure water systems.

Core Engineering Advantages

• Advanced Composite Construction

  • Multi-layer filament-wound FRP with epoxy vinyl ester resin matrix

  • High strength-to-weight ratio (60% lighter than equivalent steel vessels)

  • Immunity to galvanic corrosion and chloride-induced stress cracking

• Precision Fluid Dynamics

  • Optimized internal baffling for uniform feed flow distribution (CV < 0.05)

  • Low-turbulence end caps with integrated anti-telescoping devices

Wuxi Fenigal Science and Technology Co., Ltd. has been a dedicated manufacturer of RO FRP pressure vessels for the water industry since 2010. Through over fifteen years of continuous advancement, we have pioneered proprietary multi-axis rotating wire winding machines. These in-house innovations significantly boost product strength and enhance surface smoothness. Complementing this, we operate five self-engineered systems for curing, grinding, and pressure testing. Today, our facility boasts an annual output of 100,000 FRP membrane housings, serving domestic and global clients with dependable products and comprehensive support.

Our Mission

To deliver premium products that fulfill our customers' unique specifications.

We uphold this commitment through a robust, science-driven quality assurance framework. Integrating meticulous quality control into every phase – from initial design and development to post-sales service – our disciplined, professional approach ensures the consistent delivery of high-performance, superior-quality products.

Standard production procedure of RO pressure vessel

Winding → Sanding → Lathing → Drilling → Hydro test → Painting → Package

Standard inspection and test plan of RO pressure vessel

Our pressure vessels will be inspected in accordance with industrial standards.

The main inspection content of production includes items as follows:

1. The raw materials of production

1) Fiberglass

2) Epoxy Resin

3) Anhydride

2. The process test of production

3. Hydro-static pressure test (every vessel)

Increase the pressure at a constant speed, maintain 3 minutes and test at 1.1 times working

pressure , then make sure there is not any leak and the pressure gauge always keeps

original pressure

4. Final Inspection

Application fields

Electronics, electricity, metallurgy, chemical industry, medicine, food and beverage, industrial sewage and wastewater, water reuse, brackish water, sub-seawater, seawater desalination and other fields.

Product features

●Sulfuric acid resistance: 25%

●Hydrofluoric acid resistance: 10%

●High temperature resistance: 60/90°℃

●Fully adaptable to special media environments such as strong acid, strong alkali, electroplating solution, chlor-alkali solution, concentrated solution, garbage leachate, etc.

Pressure level coverage:

300psi/450psi/600psi/800psi/1000psi/1200psi/1500psi

PRESSURE RATINGS:

300PSI/450PSI/600PSI/800PSI/1000PSI/1200PSI/1500PSI

R8040-300PSI

Main installation dimensions

R8040-450PSI

Main installation dimensions

R8040-600PSI

Main installation dimensions

R8040-1000PSI

Main installation dimensions

R4040 End Entry membrane housing

Product Selection

1,Connection type:4040 End Por

2. Pressure type: 300, 450, 600, 800, 1000PSI

3. Length type: 1 to 4 cores;

4. Appearance color: Standard configuration is white, can be customized according to customer requirements:

5. Special specifications can be customized.

Technical Requirements

1,The manufacturing method of our FRP pressure vessel (membrane housing)is in accordance with the standard JC692-1998;

2,Design for the pressure of the FRP pressure vessel (membrane housing) is 300,450,600,800,1000PSl,and the permitted scope of working temperatureis-17℃-49℃;

3.The permeability test of the membrane housing with a way of using water pressure.The test pressure is 1.5 times of the standard pressure.

Main installation dimensions

About Us
FG Water Technologies (www.fgwater.com) is now an organic part of Wuxi Fenigal Science and Technology Co. Ltd., which is a high-tech entity integrating water treatment quipment design, manufacturing, trading and shipment served for main industrial sectors.
HAFE-FG Water Technologies has focused on the research of water treatment technology, equipment development and manufacturing, testing and international shipment etc. We work with many leading large-scale or small-medium original equipment manufacturers in China High-tech Development Zones, and engaged ourselves in R&D, manufacturing, and quality testing.
Our main products include a variety of water purification and different treatment equipment, such as seawater reverse osmosis (SWRO) system, brackish water rever osmosis (BWRO), ultrafiltration (UF)system, Electrodeionization/EDI equipment, media pressure filters and ion exchanger softeners. So far, our company has become a major water treatment equipment supplier for food and beverage industry, pharmaceutical industry, chemical industry, electric power industry, urban water supply industry, municipal and industrial wastewater treatment and more industries, as well as being an exporter to more than 20 countries and regions in Asia, Europe, the Americas, Africa, etc.

OUR CLIENTS

INDUSTRIES SERVED

PRODUCTION SYSTEM

Our production system consist of a list of industry-specialized partnership factories accross China. Some of them singularly cover an area of over 10,000 square meters, including 5,000 square meters of workshop and warehouse and 1,500 square meters of office buildings. All of our technical staff has more than 10 years of experience in the design of water treatment systems, so we are able to provide the perfect solution for all kinds of water purification and sewage treatment applications.
Since the establishment, the Company has always regarded quality as the life of our business. We choose the best components only for the production of various water treatment systems. Our systems are easy to use and maintain, and they stays highly reliable even under toughest conditions.

Our FACTORY