Screw Refrigeration Compressors And Accessories

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    Screw compressor oil pressure regulating valve

    Screw compressor oil pressure regulating valve

    Our main products include screw refrigeration compressors and accessories, piston refrigeration compressors and accessories, Industrial refrigeration system accessories, Cold storage installation accessories, Ammonia chemical protection products, Refrigeration instrument and gauge, mobile cold storage and so on.

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    Oil pressure regulating valve DN20/25

    Oil pressure regulating valve DN20/25

    Shandong Ruihua Refrigeration Equipment Co.,Ltd is found in 1989, as an engineering, manufacturing, installation and maintenance refrigeration equipment company. We can also provide environmental protection and energy saving refrigeration solutions in accordance with users’ requirements.
    Our main products include screw refrigeration compressors and accessories, piston refrigeration compressors and accessories, Industrial refrigeration system accessories, Cold storage installation accessories, Ammonia chemical protection products, Refrigeration instrument and gauge, mobile cold storage and so on.

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    China Manufacturers Balance Piston For Screw Refrigeration Compressor

    China Manufacturers Balance Piston For Screw Refrigeration Compressor

    1. The role of the balance piston is to balance the axial force of the rotor:
    2. On both sides of the rotor of the screw compressor, there is an axial force directed to the intake direction due to the differential pressure between the intake and exhaust.
    3. The balance piston is under the action of oil pressure, giving the rotor an opposite axial force to achieve equilibrium.
    4. The balance piston generally bears 70% of the axial force, and the rest is borne by the positioning bearing. The balance piston is generally placed on the male rotor because the axial force of the male rotor is greater than that of the female rotor.

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    Three-position Four-way Valve For Screw Refrigeration Compressor

    Three-position Four-way Valve For Screw Refrigeration Compressor

    Three-position Four-way Valve For Screw Compressor:
    1. The three-position four-way valve, also known as the electromagnetic reversing valve, is specialized in the screw compressor unit.
    2. Working fluid: R717
    3. Precise connection of various parts, not easy to leak.
    4. High-precision spool with sealing ring for air tightness.

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    Shaft seal / mechanical seal for industrial screw refrigeration compressor

    Shaft seal / mechanical seal for industrial screw refrigeration compressor

    1. The shaft seal for screw refrigeration compressor has good sealing performance, reliable quality.
    2. The structures of the shaft seal for screw refrigeration compressor include moving ring, fixed ring and o-ring. The moving ring of the shaft seal for screw refrigeration compressor is made of silicon carbide which is use wear-resistant material. And the fixed ring of the shaft seal for screw refrigeration compressor is made of graphite materia.
    3. Our shaft seal for screw refrigeration compressor have 4 models, Model 25, Model 20, Model 16 and Model 12.5.

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    2ZH-125 oil pump

    2ZH-125 oil pump

    The oil pump can be used as a process pump, a conveying pump, or a circulating oil pump for screw-type compressors, as well as a pump for supplying oil to hydraulic stations and other equipment. It integrates reciprocating and rotor type, and has the characteristics of high speed, large flow, high pressure and stability, long working life and so on.

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    JZX40-3B vertical oil pump

    JZX40-3B vertical oil pump

    Oil pump installation instructions:
    1. The quality of the oil pump installation has a very important impact on the smooth operation and service life of the oil pump, so the installation and calibration work must be carried out carefully and must not be rash.
    2. The installation height, length, and pipe diameter of the suction pipe of the oil pump should meet the calculated values, and strive to be short to reduce unnecessary losses (such as elbows, etc.); and to ensure that the oil pump does not exceed its allowable cavitation margin during operation.
    3. The suction and discharge lines of the oil pump should have brackets. The oil pump must not bear the load of the pipeline.
    4. The place where the oil pump is installed should be wide enough to facilitate the maintenance work.

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    Economical control panel

    Economical control panel

    ESCC50B is an economical product for the control of refrigeration screw compressor.It is mainly applied to the refrigeration industry to provide manual control to open type screw compressor with internal pressure adjustable or non-adjustable and with a single compressor equipped with energy control.

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    Screw refrigeration compressor potentiometer

    Screw refrigeration compressor potentiometer

    The role of the potentiometer-adjust the size of the voltage (including DC voltage and signal voltage) and current.
    The structural characteristics of the potentiometer-The resistor body of the potentiometer has two fixed ends. By manually adjusting the rotating shaft or sliding handle to change the position of the moving contact on the resistor body, the change between the moving contact and any fixed end The resistance value changes the magnitude of voltage and current.

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