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SR-Series

Screw Refrigerant Compressors

Introduction | Features | Specifications

Introductioncompr_sr1.jpg (8865 bytes)

Fu Sheng offers screw refrigerant compressor in a wide range of sizes, ranging from 126,000~605,000 Kcal/Hr, to suit various applications.  Advanced CNC Machining Centers and Rotor Milling Machines are used to manufacture the SR series compressors. All the parts and casings of the compressor are precisely milled in a climate-controlled environment where the humidity and temperature are kept at a constant level. Sophisticated coordinate measuring machine is used to inspect the dimensions of the finished parts. Compressor rotors are dynamically balanced before assembly. Under stringent quality control, every screw refrigeration compressor is fully tested prior to shipment.

Features

  1. High EER, Low Energy Consumption
    The newly designed, asymmetrical rotor profile, which has five lobes ad six flutes in the male and female rotors respectively, results in a low pressure differential between flutes. This design provides high volumetric efficiency as well as low power consumption.
  2. Low Noise Level, Low Vibrationrotors.jpg (8141 bytes)
    Rotors are precisely milled and dynamically balanced. Supported by high precision bearings, the rotors run smoothly and with little vibration.
  3. Precise Capacity Control System
    The standard four-step capacity control system, as well as the optional linear capacity control system, provides operations under variable loading conditions with minimum power consumption.
  4. Ease of Maintenance
    The semi-hermetic design and the low number of components used significantly reduce the maintenance requirements. In addition, the semi-hermetic design needs no shaft seals, thus eliminating the chance of refrigerant leakage. The detachable motor construction makes quick servicing possible.
  5. Wide Application Range
    These compressors can be used in both air-cooled and water-cooled air-conditioning systems, thermal storage systems, heat pumps and other industrial applications.

Specifications 

 

compressor

Model

SR-1(H)

SR-2(H)

SR-3(H)

SR-434(H)

SR-4(H)

SR-5(H)

SR-561(H)

SR-6(H)

SR-7(H)

SR-8(H)

SRA-1

SRA-2

SRA-3

SRA-434

SRA-4

SRA-5

SRA-561

SRA-6

SRA-7

SRA-8

SF(A)-50

SF(A)-60

SF(A)-70

SF(A)-90

SF(A)-120

SF(A)-140

SF(A)-160

SF(A)-180

SF(A)-230

SF(A)-270

Displacement

m3/hr

174 / 145

220 / 183

265 / 221

349 / 291

434 / 362

519 / 432

594 / 495

668 / 557

842./ 702

998 / 832

rpm

rpm

3550/2950

Capacity control range

%

100/75/50/25 (for starting only), Linear capacity control

Refrigerant

 

SR(H), SF Model: R-22 / R407C     SRA, SFA Model: R-134a

Lubrication method

 

Differential pressure feeding

motor

Type

 

3f, 2p induction motor

Start Method

 

Y-∆ start or D-O-L

Frequency

Hz

60/50

Voltage

V

220,380,440,460/380~400

Insulation Class

 

Class F

Protection device

 

PTC thermistor

Heater

W

150

300

Hydraulic test

bar

R407C/R22¡G42 (high-pressure side); R134a¡G29 (high-pressure side)

Weight

kg

420

520

530

630

930

930

930

1100

1150

1250

¡¸    Fu Sheng reserves rights to change design without notice.

¡¸    SR (H) series for R-22/R-407C, SRA series for R-134a and SF (A) series for flooded type chiller application with R-407C/R-22 (R-134a).

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Note: Fu Sheng has a policy of continuous product improvement and reserves the right to change specifications and designs without notice.

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