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Help CenterDouble-Walled Gasketed Plate Heat Exchanger, 316L Stainless Steel, 25 Bar, 200°C
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Qingdao Conqinphi Environmental Technology Group Co., Ltd. — a leading manufacturer with a 10,000-30,000 m² factory, over 200 employees, and annual export value exceeding US$10 million — proudly presents our Double-Walled Gasketed Plate Heat Exchanger, crafted from premium 316L stainless steel. This heat exchanger is engineered to withstand extreme operating conditions: 25 bar pressure and 200°C temperature, making it an ideal solution for demanding industrial applications. With double-walled plates and high-grade gaskets, it ensures absolute leak-free performance and cross-contamination prevention, delivering reliable thermal efficiency for your process needs.
Our product is designed for industries where hygiene, safety, and durability are paramount — such as food & beverage, pharmaceutical, chemical processing, and HVAC. The 316L stainless steel construction provides excellent corrosion resistance against aggressive media, while the double-wall design offers an extra layer of protection, enabling immediate detection of any internal leakage. Below, we detail the key features, specifications, and benefits that make this heat exchanger a trusted choice for global buyers.
Key Features & Technical Specifications
- Double-Walled Plate Design — Each plate consists of two layers with a gap, allowing any leak to be visibly detected without mixing fluids. This eliminates cross-contamination risks.
- Material Excellence — All plates and gaskets are made from 316L stainless steel, offering superior resistance to chlorides, acids, and high-temperature oxidation.
- High Pressure & Temperature Rating — Rated for 25 bar maximum working pressure and 200°C maximum operating temperature, suitable for steam, hot oil, and other high-energy media.
- Advanced Gasket System — Use of clip-on or snap-in gaskets (NBR, EPDM, Viton available) ensures easy replacement and long service life. Gaskets are designed to prevent extrusion under high pressure.
- Customizable Plate Count & Pattern — The heat transfer area can be adjusted by adding or removing plates, with chevron patterns optimized for specific flow rates and pressure drops.
- Compact & Lightweight — Compared to shell-and-tube designs, this plate heat exchanger saves up to 80% space and 50% weight, while maintaining high heat transfer coefficients.
- Easy Maintenance — The frame is designed for quick disassembly, allowing easy cleaning, inspection, and gasket replacement. All connections are standard flange or threaded per customer request.
- Compliance & Certification — Our factory is certified with ISO9001, ISO14000, OHSAS18001, and HACCP (among others). The heat exchanger can be manufactured to meet ASME, PED, or other international codes upon request.
Technical Parameters (Typical)
| Parameter | Value | Remarks |
|---|---|---|
| Material (Plates) | 316L Stainless Steel | Standard; other alloys available |
| Max Working Pressure | 25 bar (362 psi) | Higher pressure upon request |
| Max Operating Temperature | 200°C (392°F) | Depends on gasket material |
| Plate Thickness | 0.5 – 0.8 mm | Customizable |
| Gasket Material | NBR, EPDM, Viton | Optional based on media |
| Connection Size | DN25 – DN200 | Flanged or threaded |
| Heat Transfer Area | 1 – 500 m² (per unit) | Modular design |
| Frame Material | Carbon steel (epoxy coated) or SS304 | Optional |
Customer Benefits
- Zero Cross-Contamination — The double-wall design gives you peace of mind in food, pharmaceutical, or sanitary applications. Even if a plate fails, the leaked fluid is contained and visible, preventing mixing.
- Energy Efficiency — High turbulence created by chevron patterns maximizes heat transfer coefficient (up to 7,000 W/m²K), reducing energy consumption and operational costs.
- Long Service Life — 316L stainless steel plates resist pitting and crevice corrosion, while quality gaskets withstand thermal cycling. Proper maintenance can extend lifespan beyond 15 years.
- Reduced Downtime — Modular plate assembly allows quick replacement of individual plates. No need to replace the entire unit.
- Flexible Configuration — Single-pass, multi-pass, or multi-circuit arrangements are possible. We can also integrate with existing systems.
Trusted by Global Markets
Since 2015, Qingdao Conqinphi Environmental Technology Group Co., Ltd. has grown into a comprehensive manufacturer with a factory spanning 10,000–30,000 m² and a dedicated team of 201–300 employees. Our annual export value exceeds US$10–50 million, serving customers across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. We ship from the port of Qingdao, ensuring timely delivery.
Our quality management system is certified under multiple standards including ISO9001, ISO14000, OHSAS18001, HACCP, TL900, QS9000, and others. Every heat exchanger undergoes rigorous pressure testing, helium leak testing, and dimensional inspection before shipment. We also offer customized solutions — from plate pattern optimization to special gasket materials — to meet your exact process requirements.
Contact us today to discuss your specific heat transfer needs. Our experienced engineers will provide a tailored quotation, technical drawings, and after-sales support. Choose Conqinphi for reliability, durability, and performance.
Frequently Asked Questions (FAQ)
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Q: What is the advantage of a double-walled gasketed plate heat exchanger over a single-walled design?
A: The double-wall design provides an additional safety barrier. If a plate develops a leak, the fluid is captured in the gap between the two layers and can be detected externally, preventing cross-contamination between the two media streams. This is critical for hygienic processes and when handling hazardous fluids. -
Q: Can this heat exchanger handle steam or high-temperature thermal fluids?
A: Yes, with its 316L stainless steel plates and appropriate gasket material (e.g., Viton), it can operate up to 200°C. For steam applications, we recommend checking the pressure-temperature rating and using a suitable gasket to avoid degradation. -
Q: What gasket materials do you offer, and how do I choose?
A: We offer NBR (general purpose, up to 140°C), EPDM (good for water, steam, up to 160°C), and Viton (high temperature resistance up to 200°C, excellent for oils and aggressive chemicals). Our sales team can help you select based on your media composition and temperature. -
Q: Is the heat exchanger customizable in terms of plate count and connection size?
A: Absolutely. The plate count is adjustable to achieve the required heat transfer area. Connections can be made to DN25–DN200, with flange or thread standards (ANSI, DIN, JIS, etc.) as per your request. -
Q: What certifications does your factory hold?
A: Our factory is certified with ISO9001, ISO14000, OHSAS18001, HACCP, TL900, QS9000, SA8000, and many others. The product itself can be designed to meet ASME, PED, or other international codes upon request. We will provide documentation accordingly. -
Q: What is the typical lead time for this heat exchanger?
A: Standard lead time is 4–6 weeks for a typical configuration. Custom designs or large orders may require 8–10 weeks. We recommend contacting us for current lead times. -
Q: Do you provide after-sales support and spare parts?
A: Yes, we offer lifetime technical support and supply spare parts such as gaskets, plates, and frame components. We also provide installation guidance and troubleshooting assistance. -
Q: How do you ensure the quality of the product before shipment?
A: Every unit undergoes a hydrostatic pressure test at 1.3 times the design pressure, a helium leak test, and a visual inspection. We also provide a certificate of compliance and test reports upon request.
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