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Help CenterSeawater Desalination Pretreatment Heat Exchanger, 2 Year Warranty, Mill Test Report, Technical Support
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Qingdao Conqinphi Environmental Technology Group Co., Ltd. — a professional manufacturer established in 2015 with a factory area of 10,000–30,000 square meters and an annual export value of US$10–50 million — proudly presents our Seawater Desalination Pretreatment Heat Exchanger. This equipment is designed to efficiently raise the temperature of raw seawater before it enters the reverse osmosis (RO) membrane system, significantly improving membrane performance and extending service life. With a 2-year warranty, Mill Test Report, and dedicated technical support, we ensure your desalination process runs smoothly and cost-effectively.
Our heat exchanger is built with premium corrosion-resistant materials to withstand the harsh marine environment. Whether you need a compact unit for a small island desalination plant or a large-scale system for municipal water supply, our customizable solutions meet your exact requirements. Below we detail the key features, technical specifications, and benefits that make this product a reliable choice for seawater pretreatment.
Key Features & Advantages
- Superior Corrosion Resistance — Made from high-grade stainless steel (SS316L) or titanium, ensuring long-term durability against chloride attack and biofouling.
- High Thermal Efficiency — Optimized heat transfer surface design minimizes energy consumption and reduces operating costs.
- Compact & Modular Design — Space-saving footprint allows easy integration into existing desalination skids, with optional modular expansion for future capacity upgrades.
- 2-Year Warranty — Covers manufacturing defects and performance shortfalls, giving you peace of mind.
- Mill Test Report Included — Provides certified material traceability and mechanical property data for quality assurance.
- Comprehensive Technical Support — Our team of engineers provides installation guidance, commissioning assistance, and remote troubleshooting throughout the product lifecycle.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | SS316L / Titanium (Ti Grade 2) |
| Design Pressure | Up to 1.6 MPa (shell side) / 1.0 MPa (tube side) |
| Design Temperature | -10°C to 120°C |
| Heat Transfer Area | 10 m² – 500 m² (customizable) |
| Flow Rate | 50 L/h – 500 m³/h |
| Connection Size | DN25 – DN300 (flanged or threaded) |
| Warranty | 2 years |
| Certifications | ISO9001, ISO14000, OHSAS18001, HACCP, etc. |
Detailed Benefits for Your Desalination Plant
- Improved RO Membrane Lifespan — By preheating seawater to the optimal temperature (typically 20–30°C), the heat exchanger reduces membrane fouling and scaling, cutting replacement frequency by up to 30%.
- Lower Energy Consumption — Higher feed water temperature reduces the pressure required for RO operation, potentially saving 5–15% in electricity costs.
- Reduced Chemical Usage — Stable temperature control minimizes the need for antiscalants and biocides, lowering operational expenses and environmental impact.
- Simple Maintenance — The shell-and-tube design allows easy access for cleaning and inspection; removable tube bundles are available upon request.
- Global Compatibility — Designed to meet international standards (ASME, PED, etc. on request), suitable for SWRO, MED, and MSF desalination processes.
Qingdao Conqinphi Environmental Technology Group Co., Ltd. brings over 9 years of manufacturing experience, with a dedicated team of 201–300 employees and a factory spanning 10,000–30,000 square meters. We have exported to over 15 countries across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our annual export value exceeds US$10 million, reflecting our strong global presence. We hold multiple certifications including ISO9001, ISO14000, OHSAS18001, HACCP, SA8000, and others, ensuring consistent quality and social responsibility.
Every heat exchanger is accompanied by a Mill Test Report for material traceability, and our technical support team is available 24/7 to assist with installation, troubleshooting, and optimization. Choose Conqinphi for reliable, efficient, and long-lasting seawater desalination pretreatment solutions. Contact us today for a customized quotation or to discuss your project requirements.
Frequently Asked Questions
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Q: What is the typical lead time for this heat exchanger?
A: Standard lead time is 20–30 working days after order confirmation. Customized units may require 35–45 days, depending on specifications. -
Q: Does the 2-year warranty cover all parts?
A: Yes, the warranty covers manufacturing defects and performance failures under normal operating conditions. Consumables like gaskets are covered for 1 year. -
Q: Can you provide a Mill Test Report with the shipment?
A: Absolutely. A Mill Test Report (MTR) for the material used is included with each heat exchanger, ensuring full traceability and compliance with industry standards. -
Q: What type of seawater salinity range can this heat exchanger handle?
A: Our heat exchangers are designed for seawater with total dissolved solids (TDS) up to 45,000 ppm. For higher salinity, we recommend titanium material. -
Q: Is technical support available after installation?
A: Yes, we provide lifetime technical support via email, phone, and video call. On-site assistance can be arranged at an additional cost. -
Q: How often should the heat exchanger be cleaned?
A: Cleaning frequency depends on seawater quality and operating conditions. Typically, we recommend inspection every 6 months and cleaning every 1–2 years. -
Q: Can the heat exchanger be customized for space constraints?
A: Yes, we offer modular and compact designs. Our engineering team can adapt the footprint, connection orientation, and tube layout to fit your existing skid. -
Q: What certifications does your factory hold?
A: Our factory is certified with ISO9001, ISO14000, OHSAS18001, HACCP, SA8000, and others. We can also provide product-specific certifications like PED or ASME upon request.
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