Phone
(028) 6258 5368SpectraGuard™ 311
SpectraGuard™ 311 is an 8x super-concentrated antiscalant/dispersant from PWT (USA) that controls scale formation in RO membrane systems. Its advanced proprietary formula, combining polymers and phosphonates, effectively prevents precipitation of carbonates, sulfates, phosphates, silica, and metal hydroxides. This protects membranes from scaling, extends their lifespan, and reduces operational costs.
Product features
- Advanced scale control: Prevents CaCO3, CaSO4, BaSO4, CaF2, silica, and Fe/Mg hydroxides.
- 8x concentration: Reduces shipping/storage costs
- Proprietary formula: Controls fouling in high-salinity, high-silica, and colloidal water
- High stability: Performs in extreme pH, temperature, and salinity
- Certified safe: NSF/ANSI/CAN 60, Halal, and Kosher approved
Specifications
-
Appearance
Amber / pale yellow liquid
-
pH (1% solution)
1.60 – 2.20
-
Density
1.26 – 1.31 kg/liter
SpectraGuard™ 311 is a premium antiscalant specifically designed to boost RO membrane performance. It effectively prevents scale buildup and extends membrane life while lowering operating costs.
1. Specifications of the SpectraGuard™ 311
SpectraGuard™ 311 is a highly concentrated antiscalant designed to effectively control scale formation on RO membranes. It features a stable chemical composition and is compatible with a wide range of feed water qualities, including those with high mineral content. The detailed technical specifications of this antiscalant are provided below.
SPECIFICATION | VALUE |
---|---|
Appearance | Amber / pale yellow liquid |
pH (1% solution) | 1.60 – 2.20 |
Density | 1.26 – 1.31 kg/liter |
2. Uses of the SpectraGuard™ 311
SpectraGuard™ 311 delivers superior antiscalant protection for RO systems, specifically designed to:
- Prevent scale from CaCO3, CaSO4, BaSO4, CaF2, silica, and iron/magnesium hydroxides
- Maintain peak RO performance by preventing scaling and prolonging membrane life.
- Reduce operating costs through significantly lower dosage requirements
- Ensure consistently high permeate quality for stable system operation

3. Features of the SpectraGuard™ 311
SpectraGuard™ 311 outperforms conventional antiscalants with these advanced features:
- 8x concentrated formula reduces chemical use, transport, and storage costs.
- Proprietary polymer-phosphonate technology prevents scaling in high-TDS and high-silica water
- Unmatched stability in extreme conditions (high pH, temperature, and salinity)
- Broad compatibility with all water systems – from municipal to industrial applications
- Comprehensive certifications (NSF/ANSI 60, Halal, Kosher) validate safety for food and drinking water contexts.
4. Applications of the SpectraGuard™ 311
Designed for universal water treatment needs, SpectraGuard™ 311 delivers reliable scale prevention in:
- Industrial RO systems
- Municipal water reuse
- Drinking water and freshwater treatment systems
- Seawater and brackish water treatment systems
5. Packaging options for SpectraGuard™ 311
SpectraGuard™ 311 is supplied with multiple packaging options to meet diverse operational requirements:
PACKAGING OPTION | CAPACITY |
---|---|
Pail | 5 gallon (18.9 liter) |
Drum | 55 gallon (208 liter) |
Tote | 275 gallon (1,040 liter) |
Bulk | Available upon request |

6. Certifications of the SpectraGuard™ 311
SpectraGuard™ 311 is certified to critical international standards:
- NSF/ANSI 60 certification: Validates safety for food and drinking water applications: View NSI/ANSI 60 certification of SpectraGuard™ 311
- Halal and Kosher certifications: Confirms compliance with stringent food production standards:
7. Authorized distributor of the SpectraGuard™ 311
ATS Water Technology Co., Ltd. (ATS Water Technology) is the exclusive Vietnamese distributor for PWT (USA), specializing in high-performance antiscalant technologies. We focus on advanced chemical solutions for scaling control in reverse osmosis (RO) and nanofiltration (NF) membrane systems, with SpectraGuard™ 311 as our flagship product.
Moving beyond product distribution, we deliver complete water treatment solutions through an integrated approach that combines design consulting, technical expertise, and specialized equipment supply. Our priority is customer success – we ensure optimal product selection, system performance, and reliability for all critical water treatment applications.
With our team of experienced engineering professionals, we provide customized technical solutions and premium water treatment equipment. We’re committed to delivering sustainable solutions that meet even the most challenging water treatment needs. Contact us today for expert advice and a detailed quotation.
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
- Social media: Facebook | LinkedIn | Zalo Official