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Help Center1 Year Warranty Stainless Steel Heat Exchanger 304 Grade Mill Test Report Available
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Qingdao Conqinphi Environmental Technology Group Co., Ltd. has been a trusted manufacturer of high-quality heat transfer solutions since 2015. With a factory spanning 10,000–30,000 square meters and an annual export value exceeding US$10 million, we bring unmatched expertise to every product. Our 1 Year Warranty Stainless Steel Heat Exchanger 304 Grade is designed for demanding industrial applications, offering exceptional corrosion resistance, thermal efficiency, and long-term reliability. Each unit comes with a Mill Test Report to verify material integrity, ensuring you receive exactly what you specify.
This heat exchanger is constructed from premium 304 stainless steel, a material known for its excellent weldability, formability, and resistance to oxidation and many corrosive media. It is suitable for a wide range of fluids, including water, oils, gases, and mild chemicals. The product is available in various configurations—shell-and-tube, plate, or finned designs—depending on your process requirements. With a robust 1-year warranty, we stand behind the durability and performance of our equipment.
Key Features & Technical Specifications
- Material Grade: 304 Stainless Steel (also available in 316L upon request)
- Warranty: 1 Year against manufacturing defects
- Mill Test Report: Provided with each shipment to confirm chemical composition and mechanical properties
- Design Pressure Range: Up to 10 bar (standard), higher available for custom orders
- Temperature Range: -20°C to +250°C (depending on gasket and design)
- Surface Finish: 2B or matte finish, optional pickling and passivation
- Connections: Flanged, threaded, or welded ends per ANSI/DIN standards
- Customization: Size, tube count, baffle spacing, and shell diameter can be tailored to your application
| Parameter | Standard Value | Remarks |
| Heat Transfer Area | 1 – 500 m² | Customizable |
| Tube Diameter | 10 – 50 mm | Seamless or welded |
| Shell Side Pressure | 6 – 10 bar | Higher on request |
| Tube Side Pressure | 6 – 10 bar | Higher on request |
| Operating Temperature | -20°C to +250°C | Depends on gasket material |
| Connections | Flanged / Threaded / Welded | ANSI or DIN |
Why choose our 304 grade heat exchanger?
- ✔ Long service life – 304 stainless steel resists pitting, crevice corrosion, and stress corrosion cracking in most environments.
- ✔ High thermal efficiency – Optimized tube layout and baffle design maximize heat transfer while minimizing pressure drop.
- ✔ Easy maintenance – Removable tube bundles allow for straightforward cleaning and inspection.
- ✔ Mill Test Report included – Full traceability of material composition and mechanical properties for quality assurance.
- ✔ Flexible customization – We work with you to design the exact dimensions, nozzle positions, and support structures needed.
- ✔ Competitive pricing – As a direct manufacturer, we offer factory-direct prices without middlemen.
Trusted by Global Industries
Our heat exchangers are widely used in chemical processing, petrochemical, food & beverage, pharmaceutical, HVAC, and power generation. The 304 grade is particularly favored for its balance of cost and corrosion resistance in applications where fluids are not highly aggressive. Every unit undergoes rigorous dimensional and pressure testing before shipment, ensuring it meets your specifications precisely.
About Qingdao Conqinphi Environmental Technology Group Co., Ltd.
With over 200 skilled employees and a 10,000+ sqm manufacturing facility, we have exported to North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. Our company is certified under ISO9001, OHSAS18001, HACCP, and other management systems, reflecting our commitment to quality, safety, and environmental responsibility. We ship from the port of Qingdao, ensuring timely delivery worldwide.
We invite you to contact us for a quote or technical discussion. Our team of engineers will assist you in selecting the optimal heat exchanger configuration for your process. With the 1-year warranty and mill test report included, you can purchase with confidence. Let Qingdao Conqinphi be your long-term partner in thermal management.
Frequently Asked Questions
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Q: What does the 1-year warranty cover?
A: The warranty covers manufacturing defects in materials and workmanship. It does not cover damage caused by improper installation, misuse, or unauthorized modifications. Please refer to our warranty policy for full details. -
Q: Can you provide a Mill Test Report for the 304 stainless steel?
A: Yes, a Mill Test Report (MTR) is included with every shipment, confirming the chemical composition and mechanical properties of the material used. -
Q: Can I get a custom size or design?
A: Absolutely. We offer full customization of dimensions, tube layout, nozzle placement, and pressure ratings. Simply provide your process parameters and we will design accordingly. -
Q: What is the typical lead time for an order?
A: Lead time depends on the complexity and quantity. Standard sizes usually ship within 15–25 working days. Custom designs may take 30–45 days. We will confirm after reviewing your requirements. -
Q: Is this heat exchanger suitable for food-grade applications?
A: 304 stainless steel is commonly used in food processing. We can provide a hygienic design with appropriate surface finish and gaskets. Additional certifications (e.g., FDA, 3-A) are available upon request. -
Q: What is the maximum operating temperature for this heat exchanger?
A: Standard design allows up to 250°C. For higher temperatures, we can use alternative gasket materials or all-welded construction. Please consult with our engineers. -
Q: Do you offer installation support or technical documentation?
A: Yes, we provide detailed installation, operation, and maintenance manuals with each unit. Our technical support team is available via email or phone for any questions. -
Q: How do I request a quote?
A: Please send an inquiry with your required heat transfer duty, fluid properties, space constraints, and any preferred connection types. We will respond with a quotation and technical proposal within 48 hours.
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