As a professional manufacturer providing complete industrial water treatment solutions centered on Liquid Filters, we supply full sets of reliable membrane elements for commercial drinking water stations, hotel centralized water supply, campus pure water systems and small food processing factories. Our TMG Series Standard Rejection RO Membrane is a balanced-performance reverse osmosis membrane developed by Toray for general brackish water and municipal tap water treatment, perfectly matching all mainstream commercial water treatment equipment.
Product Introduction
As a professional manufacturer providing complete industrial water treatment solutions centered on Liquid Filters, we supply full sets of reliable membrane elements for commercial drinking water stations, hotel centralized water supply, campus pure water systems and small food processing factories. Our TMG Series Standard Rejection RO Membrane is a balanced-performance reverse osmosis membrane developed by Toray for general brackish water and municipal tap water treatment, perfectly matching all mainstream commercial water treatment equipment.
According to product classification data, TMG series belongs to classic standard desalination brackish water RO membrane, featuring balanced flux and stable salt rejection without overhigh or low separation efficiency. Many commercial water operators hesitate to choose ultra-high rejection or low-pressure membranes due to unstable raw water quality and high overall system costs. This standard rejection RO membrane element solves such pain points: it delivers steady desalination effect under common municipal tap water and underground water conditions, with moderate operating pressure and low daily maintenance cost.
As a universal commercial RO membrane, TMG20-400 8040 large-size element occupies the core position of the product line. The standard spiral wound structure fits all standard 8-inch pressure vessels, realizing direct replacement of old membrane elements without modifying pumps, pipelines and control cabinets. For 24-hour continuous running commercial drinking water projects, its balanced performance can maintain long-term stable effluent quality and extend overall service cycles.
The separation principle of TMG Series Standard Rejection RO Membrane adopts mature pressure-driven osmosis interception technology, optimized for medium conventional operating pressure suitable for commercial equipment. Its cross-linked polyamide thin-film composite layer forms uniform compact separation channels, achieving balanced interception of divalent salts, heavy metals, organic colloids and microorganisms, which defines its standard stable rejection performance.
When tap water or shallow underground brackish water flows into the spiral wound RO membrane element under normal working pressure, water molecules penetrate the hydrophilic membrane surface to form clean permeate for drinking use, while scale-forming ions, residual chlorine by-products and suspended contaminants are intercepted and discharged through the concentrated water channel. Different from ultra-high rejection membranes that require high operating pressure and low-pressure membranes with weaker anti-fouling capacity, TMG series strikes a perfect balance. Its moderate surface charge avoids excessive concentration polarization, effectively reducing organic adhesion and presenting basic anti-fouling RO membrane performance.
The internal 34mil standard flow spacers lower local fluid resistance, preventing rapid fouling accumulation on the membrane surface during long-term continuous operation. This balanced structural design makes the TMG series the most adaptable industrial RO membrane for conventional commercial drinking water scenarios with medium water pollution degree.
All TMG Series standard rejection RO membrane elements follow unified industrial water treatment production standards, core RO membrane specifications are listed below:
Product Series: TMG Series Standard Rejection RO Membrane
Representative Model: TMG20-400 (8040 size)
Structure: Standard spiral wound RO membrane
Effective Membrane Area: 400 sq. ft
Stabilized Standard Salt Rejection: 99.2%~99.5%
Standard Operating Pressure: 120–160 psi
Max Allowable Operating Pressure: 600 psi
Continuous Operating Temperature: ≤45°C
Continuous Working pH Range: 2.0–11.0
Short-term Chemical Cleaning pH Range: 1.0–13.0
Maximum Feed Water SDI Value: 5
Single Element Maximum Pressure Drop: 15 psig
Core Feature: Balanced flux & standard stable rejection, universal for commercial drinking water
Balanced standard stable rejection performance
As a classic Standard Rejection RO Membrane, TMG series maintains steady 99.2%-99.5% salt rejection, enough to remove scale, heavy metals and harmful impurities in tap water to meet commercial drinking water standards. Compared with ultra-high rejection membranes, it does not need ultra-high pump pressure, saving energy consumption; compared with low rejection cheap membranes, it guarantees long-term stable water quality without frequent performance attenuation.
Wide universal adaptability for various raw water
This brackish water RO membrane is designed for municipal tap water, shallow groundwater and low-pollution surface water, covering 90% of commercial drinking water raw water sources. It is the most cost-effective universal membrane for water vending machines, office and hotel pure water systems.
Basic anti-fouling structure to reduce maintenance frequency
The smooth hydrophilic membrane surface and standard streamline flow channel weaken organic pollutant adhesion. As a practical anti-fouling RO membrane, it extends the cycle of acid and alkali chemical cleaning, cutting labor and chemical maintenance costs for commercial equipment running all day long.
Standard 8040 size for easy replacement
The mainstream 8-inch large-size element matches all common RO membrane pressure vessels on the market. Operators can directly replace old failed elements without upgrading supporting pumps and pipelines, greatly lowering equipment renovation investment.
Moderate operating pressure to save system energy
No need for high-power booster pumps required by high rejection membranes. Matching medium-power pumps can reach rated water yield, effectively reducing daily electricity cost for long-running commercial water stations and significantly lowering total operation expenditure.
Wide pH tolerance to simplify membrane cleaning
It supports strong acid and alkaline cleaning agents to thoroughly eliminate inorganic scale and organic fouling, quickly restoring membrane flux and separation efficiency, effectively prolonging overall RO membrane lifespan.
Core filter element for community automatic water selling equipment. Stable standard rejection ensures consistent pure drinking water for residents, balanced pressure design reduces daily power consumption and operation cost.
Suitable for large-volume centralized pure water supply systems for crowds. Stable effluent quality meets daily drinking demand, and low maintenance frequency reduces daily management workload of property and administrators.
Provides qualified purified ingredient water for small coffee shops, juice processing and bakery production lines, matching medium-sized commercial water treatment equipment with moderate water output.
For small towns and suburban commercial water systems relying on shallow underground water, effectively intercepting calcium, magnesium scale ions and heavy metals to improve drinking water taste and safety.
Compact commercial RO machines for shopping malls, service halls and public rest areas, with stable long-term operation and low failure rate.
Each TMG series RO membrane element is produced under ISO 9001 standardized production system, with full online testing of flux, salt rejection and pressure resistance for each batch. All raw materials comply with FDA food contact safety standards, and finished elements pass NSF drinking water safety certification. Complete factory test reports, material traceability documents and product warranty certificates can be provided for customer factory inspection and project filing. All finished membranes are vacuum-sealed with protective liquid to avoid dry damage and secondary pollution during transportation and storage.
With the rapid expansion of the commercial drinking water industry, most small and medium-sized water station operators prefer cost-effective universal membrane elements with balanced performance, which will drive steady market demand for TMG Series Standard Rejection RO Membrane in the next 5–10 years.
Ultra-high rejection and ultra-low pressure membranes have higher matching equipment investment thresholds, while expensive anti-fouling membranes are only suitable for high-pollution wastewater. The TMG series, positioned as standard balanced performance products, perfectly fits the mainstream demand of conventional commercial tap water treatment. Our R&D team will continuously optimize the hydrophilic polyamide formula of TMG series to further enhance its anti-fouling performance while maintaining stable standard rejection, extending RO membrane lifespan and lowering long-term maintenance costs for customers. In addition, its moderate energy consumption feature matches global energy-saving and low-carbon development trends, and will gain wider promotion in commercial water station renovation and new construction projects.
TMG Series Standard Rejection RO Membrane is a universal balanced-performance reverse osmosis membrane specially designed for commercial drinking water systems, filling the market gap of cost-effective standard desalination elements for conventional tap water and brackish water treatment. With balanced 99.2%-99.5% stable salt rejection, moderate operating pressure and basic anti-fouling structure, it balances water purification effect, energy consumption and maintenance cost.
Compared with high rejection, low pressure or high-end anti-fouling special membranes, this classic brackish water RO membrane has stronger universal adaptability and lower overall system matching cost, becoming the first choice for most small and medium-sized commercial drinking water projects. For water station operators and engineering companies pursuing stable effluent quality and controllable long-term operation expenditure, TMG series standard rejection RO elements are a reliable and economical long-term solution.
Q1: What’s the difference between TMG standard rejection RO membrane and high rejection RO membrane?
A1: High rejection RO membrane requires higher operating pressure and high-power booster pumps with higher energy consumption. TMG Series Standard Rejection RO Membrane reaches qualified drinking water standard under medium pressure, with lower system energy cost. Its stable 99.2%-99.5% rejection fully meets daily commercial drinking water requirements, while high rejection elements are only necessary for ultra-pure water industrial production.
Q2: Can TMG20-400 replace original 8040 RO elements on existing commercial water equipment?
A2: Yes. TMG20-400 adopts standard 8040 size, compatible with all mainstream fiberglass and stainless steel RO pressure vessels. No pipeline modification is required; users only need to adjust pump operating pressure to the medium range after replacement to realize stable energy-saving operation.
Q3: What pretreatment devices need to be matched with TMG series membrane?
A3: Standard multi-media filter, activated carbon filter and 5μm security filter are necessary to control feed water SDI below 5 and prevent solid particles from scratching the membrane surface. No complex high-pressure supporting equipment is required.
Q4: How long is the average RO membrane lifespan of TMG series elements?
A4: Under qualified pretreatment and regular acid-base cleaning maintenance, the RO membrane lifespan can reach 3–5 years. Balanced pressure and moderate fouling load effectively slow down membrane performance attenuation compared with high-pressure high-rejection membranes.
Q5: Is TMG series suitable for wastewater reuse treatment?
A5: Not recommended for heavily polluted industrial wastewater. It belongs to standard general-purpose brackish water RO membrane, designed for municipal tap water and low-pollution underground water. For high-pollution wastewater, you can choose professional anti-fouling RO membrane series such as TMF.
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