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(028) 6258 5368Preservol™ P
Preservol™ P by PWT (USA) is a powdered membrane preservative designed to protect MF, UF, NF, and RO membranes during long-term storage without compromising system performance. It allows in-situ storage, minimizing transportation and offsite preservation costs, while preventing biological growth in system pipelines and tanks. This is an ideal solution for systems expected to be offline for extended periods.
Product Features
- Effectively protects MF (Microfiltration), UF (Ultrafiltration), NF (Nanofiltration), and RO (Reverse Osmosis) membranes from microbial growth.
- Convenient powdered form for easy handling and storage.
- Safe for a wide range of membranes, including polyamide, cellulose acetate, NF, and UF.
- Remains stable under extreme temperatures, ensuring long-lasting preservation.
- Prevents microbial contamination, shielding membranes from biological damage.
- Prolongs membrane lifespan, reducing replacement and maintenance costs.
- NSF/ANSI 60 certified – safe for use in food and drinking water applications.
Specifications
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Physical appearance
White powder
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pH
4.50 – 6.00
During extended shutdown periods of water treatment systems, membrane elements are prone to contamination and degradation. Without proper preservation, membranes may be damaged due to microbial growth or chemical exposure. Preservol™ P is a reliable solution that keeps membranes in optimal condition throughout periods of inactivity. Below is comprehensive information about the product.
1. Specifications of Preservol™ P
Preservol™ P is formulated for long-term membrane protection. It is compatible with various membrane types (MF, UF, NF, RO) and can be applied immediately following a cleaning cycle. See the table below for its key specifications:
SPECIFICATION | VALUE |
---|---|
Physical Appearance | White Powder |
pH | 4.50 – 6.00 |
2. Uses of Preservol™ P
Preservol™ P prevents membrane damage during idle periods and ensures the system is ready for operation when needed. Key benefits include:
- Protects RO/NF/MF/UF membranes from microbial growth and contamination.
- Maintains system performance upon restart.
- Eliminates risk of membrane damage caused by environmental exposure.
- Reduces maintenance and replacement costs, improving system efficiency.

3. Advantages of Preservol™ P
Preservol™ P offers a complete preservation solution with the following advantages:
- Easy-to-use powdered form for convenient application and storage.
- Effective even under extreme temperatures, ensuring consistent preservation.
- Compatible with various membrane types and most water treatment systems.
- NSF/ANSI 60 certified, making it safe for food and potable water systems.
4. Applications of Preservol™ P
Preservol™ P is widely used across multiple sectors for effective membrane preservation:
- Water treatment plants that require membrane protection during periods of system shutdown.
- Industrial water treatment systems needing to maintain performance after extended downtime.
- Food and pharmaceutical applications, where membrane hygiene and safety must be strictly maintained.
- RO/NF/UF systems in industrial zones, helping to reduce maintenance and replacement costs.

5. Packaging Options of Preservol™ P
Preservol™ P is available in multiple packaging formats to meet a variety of usage requirements:
PACKAGING | VOLUME |
---|---|
Pail | 25 lbs (11.36 kg) |
45 lbs (20.45 kg) |
6. Certifications of Preservol™ P
Preservol™ P meets stringent international standards for quality and safety. It is certified under NSF/ANSI Standard 60, ensuring its suitability for use in potable water and food-related applications. For more details, please refer to the official certification link: View NSF/ANSI Certification for Preservol™ P.
7. Authorized Distributor of Preservol™ P
Choosing a reliable supplier is essential to ensure the quality and effectiveness of your membrane preservation solution. ATS Water Technology Co., Ltd. is the official distributor of PWT (USA) in Vietnam, offering genuine Preservol™ P and other high-quality membrane care products.
In addition to chemical supply, ATS Water Technology provides comprehensive support including system design consultation, technical services, advanced technologies, and tailored preservation solutions.
Our experienced engineering team is always ready to assist with expert consultation, application guidance, and post-implementation performance monitoring — helping you minimize costs and maintain long-term operational efficiency. Contact ATS Water Technology today for detailed advice and quick support on effective membrane preservation solutions!

ATS WATER TECHNOLOGY CO., LTD
- Headquarter: 54/18 Bui Quang La, Ward 12, Go Vap District, HCMC, Vietnam
- Branch office: 77 DHT10B, Dong Hung Thuan Ward, District 12, HCMC, Vietnam
- Consultation and support: (028) 6258 5368 – (028) 6291 9568
- Email: info@atswatertechnology.com
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