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Original Hitachi Compressor 303DH-47C1 303DH-50C1 353DH-56C1 for Refrigeration & Heat Exchange Parts

The Hitachi 303DH-47C2Y refrigeration compressor has the following main characteristics and parameters:
1. Applicable refrigerants: This compressor is suitable for various refrigerants, including R22, R134a, R404A, R507A, and R407C, and can operate smoothly and reliably under different working conditions.
2. Safety design: A safety relief valve is installed between the high and low pressure chambers of the compressor, and a PTC temperature sensor is directly inserted into the exhaust chamber of the cylinder block to ensure safe operation.
3. Motor protection: Adopting PTC motor protector from KRIWAN company in Germany, equipped with a delay circuit, the compressor needs to wait for 5 minutes to restart after shutdown, effectively protecting the motor.
4. Energy Efficiency Ratio: Energy regulation devices can be installed to achieve high energy efficiency ratios under both partial and full loads.
5. Application scope: Widely applicable to air conditioning, heat pumps, and industrial, agricultural, and commercial refrigeration systems.
6. Performance parameters: 6 more openings per hour, crankcase oil temperature of 80 ℃, ambient temperature of 43 ℃

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Product Description

Hitachi refrigeration compressors occupy an important position in the market due to their high efficiency, energy saving, and stability. Mainly including scroll compressors and double rotor compressors, widely used in air conditioning and refrigeration equipment.

Hitachi Vortex Compressor

Hitachi's scroll compressor adopts high-efficiency scroll technology and holds a patent for the world's first scroll air conditioning compressor.

Its characteristics include:

Efficient and energy-saving: Adopting a new driving mechanism to prevent excess refrigeration oil from causing a decrease in capacity in the refrigeration cycle, thus improving efficiency.

Anti over compression technology: ensures that the condensation pressure is not too high, avoids increased power consumption, and makes the refrigeration system more stable and reliable. ‌

Stepless frequency conversion technology: The compressor can start from 0Hz to the highest operating frequency, and the operating speed can be continuously and freely adjusted according to changes in system capacity. ‌

Oil control technology: Two stage oil separation technology improves the reliability of the system. ‌

Design features: Asymmetric scroll design and reinforced bearing structure further improve the efficiency and service life of the compressor

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