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Help CenterCompact Brazed Plate Evaporator Heat Transfer Coefficient 0.9 KW/m²K for R134a Refrigerant 20 Bar
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Qingdao Conqinphi Environmental Technology Group Co., Ltd. — a leading manufacturer with over 10,000 m² of dedicated production space and 10+ years of experience — proudly presents our Compact Brazed Plate Evaporator with a heat transfer coefficient of 0.9 kW/m²K, specifically engineered for R134a refrigerant at a maximum working pressure of 20 Bar. This evaporator is designed to deliver outstanding thermal performance in a space-saving form factor, making it an ideal choice for commercial refrigeration, chillers, and heat pump systems. Built with precision brazing technology and high-grade stainless steel plates, our evaporator ensures reliable operation, long service life, and minimal refrigerant charge. With annual exports exceeding US$10 million and a team of 200+ skilled professionals, we are committed to providing top-tier heat exchange solutions to clients worldwide.
The core advantage of this brazed plate evaporator lies in its high heat transfer efficiency — up to 0.9 kW/m²K — which translates to faster cooling, reduced energy consumption, and lower operating costs. The compact design allows for easy installation in tight spaces, while the 20 Bar pressure rating ensures robust performance under demanding conditions. Whether you are OEM manufacturer, system integrator, or distributor, this evaporator offers a reliable and cost-effective solution for your R134a-based systems.
Key Features & Technical Specifications
- Exceptional Heat Transfer: Coefficient of 0.9 kW/m²K ensures rapid evaporation and optimal thermal exchange.
- R134a Compatible: Designed specifically for R134a refrigerant, with excellent chemical compatibility and performance.
- High Pressure Rating: Maximum working pressure of 20 Bar (290 psi) suitable for a wide range of commercial and industrial applications.
- Compact & Lightweight: Space-saving design reduces footprint; ideal for modular systems and retrofit projects.
- Durable Construction: Stainless steel 316L plates with copper brazing (or nickel brazing as option) for corrosion resistance and strength.
- Low Refrigerant Charge: Reduced internal volume minimizes refrigerant inventory, lowering costs and environmental impact.
- Versatile Connections: Available with solder, threaded, or flanged connections to match your system requirements.
- Customizable Plate Count: Plate quantity can be adjusted from 10 to 100+ plates to achieve specific capacity needs.
- Leak-Free Design: Vacuum-brazed joints eliminate gaskets, virtually eliminating leakage risks.
- Easy Maintenance: No gaskets to replace; simple cleaning if required (non-brazed versions available).
| Parameter | Value |
|---|---|
| Heat Transfer Coefficient | 0.9 kW/m²K |
| Refrigerant | R134a |
| Max Operating Pressure | 20 Bar (290 psi) |
| Max Operating Temperature | +200°C (depending on brazing material) |
| Plate Material | Stainless Steel 316L (AISI 316L) |
| Brazing Material | Copper (standard) / Nickel (optional) |
| Connection Options | Solder (ODF), Threaded (NPT/BSP), Flanged (DIN/ANSI) |
| Plate Quantity Range | 10 – 100+ (customizable) |
| Dimensions (L×W×H) | Varies with plate count; typical: 300×120×100 mm (for 20 plates) |
Why Choose Our Compact Brazed Plate Evaporator?
- Energy Efficiency: The high HTC reduces energy consumption by up to 30% compared to traditional shell-and-tube evaporators.
- Space Saving: Up to 80% smaller footprint than conventional designs, freeing up valuable floor space.
- Reliable Performance: Vacuum brazing technology ensures uniform joints and long-term leak-free operation.
- Low Maintenance: No gaskets, no seals to replace — minimal downtime.
- Environmentally Friendly: Lower refrigerant charge reduces global warming potential (GWP) emissions.
- Customizable Design: Plate count, connection type, and brazing material can be tailored to your specific system requirements.
- Global Compliance: Manufactured under strict quality management systems (ISO9001, ISO14000, OHSAS18001) and available with certifications upon request.
Frequently Asked Questions (FAQ)
1. What refrigerants can this evaporator handle besides R134a?
While designed for R134a, the same plate package can be used with other compatible refrigerants such as R404A, R407C, or R410A, provided the pressure and temperature limits are observed. Please consult our technical team for specific recommendations.
2. Can I use this evaporator for ammonia (R717) systems?
Ammonia requires special materials. Our standard copper-brazed units are not suitable for ammonia. For ammonia, we offer nickel-brazed stainless steel plate heat exchangers. Contact us for details.
3. What is the typical lifespan of this evaporator?
With proper system design and water quality control, the evaporator can last 10–15 years or more. Regular cleaning of the water side (if applicable) and avoiding excessive thermal shock will extend its life.
4. How do I select the correct plate count for my application?
The plate count depends on the required cooling capacity, refrigerant flow rate, and temperature difference. Our engineering team can perform a thermal calculation based on your operating conditions. Provide us with your evaporation temperature, superheat, and capacity, and we will recommend the optimal configuration.
5. Is this evaporator suitable for heat pump systems?
Yes, the compact design and high HTC make it ideal for both cooling and heating applications. The 20 Bar pressure rating covers typical heat pump operating pressures with R134a.
6. What are the available connection sizes?
Standard connection sizes range from 1/2" to 2" for solder and threaded, and flanged connections up to DN50. Custom sizes are available upon request.
7. Does the product come with a warranty?
Yes, we offer a standard 12-month warranty against manufacturing defects. Extended warranties may be negotiated for large orders. Our quality system is certified under ISO9001, ensuring consistent quality.
8. Can I get a sample before bulk order?
Absolutely. We support sample orders for evaluation. After validation, we can proceed with mass production, typically with lead times of 15–25 working days depending on quantity.
Trust Your Heat Exchange Needs to Qingdao Conqinphi — With a 10,000+ m² factory, 200+ dedicated employees, and annual exports exceeding US$10 million to markets across North America, Europe, Asia, and Africa, we have the capacity and expertise to deliver high-quality compact brazed plate evaporators at competitive prices. Our manifold certifications (ISO9001, ISO14000, OHSAS18001, and others) reflect our commitment to quality, safety, and environmental responsibility. Contact us today for a quote, technical support, or custom design service. Let us help you optimize your refrigeration system with our proven heat transfer solutions.
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