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ARPEX ARP-6 series

  • Информационные материалы

    Информационные материалы

    Coupling can be used for potentially explosive environ­ments in accordance with 94/9/EC.

    Область применения

    ARPEX series ARP-6 couplings have been specially developed for pump drives and specifically for centrifugal pump drives. Special care was taken to meet the requirements of API 610 and API 671 (API = American Petroleum Institute). Power is transmitted via close-fitting bolts and nuts from size 310-6 with conical screw connection and plate packs in hexagonal design. Torques of between 100 and 17000 Nm can be transmitted at a permitted angular misalignment of 0.7°. The closed flange shape and a compact construction permit high peripheral speeds and high speeds. The intermediate spacer can be fitted radially without moving the connected units.

    Main areas of application for the ARP-6 series:

    • Centrifugal pumps
    • Boiler feed pumps
    • Propeller pumps
    • Wing pumps
    • Pipeline pumps
    • Turbo compressors
    • Screw compressors
    • Turbo blowers
    • Axial, radial blowers
    • Rotary-piston blowers
    • Fans

    Дизайн

    NAN: The design of an ARPEX NAN coupling of the ARP-6 series is shown in the following illustration. The plate packs are bolted alternately between the flanges of the coupling hubs and the intermediate spacer. Up to size 298-6 close-fitting bolts and from size 325-6 conical screw connections are used for fastening. The intermediate spacer is available from stock in various fixed lengths. Hubs are designed with threaded pull-off holes.

    MCECM: The design of an ARPEX MCECM coupling of the ARP-6 series is shown in the following illustration. Bolted between two hubs is the CEC transmission unit, the preassembled plate packs of which are bolted alternately between flanges and intermediate spacer. Up to size 275-6 close-fitting bolts and from size 310-6 conical screw connections are used for fastening. The intermediate spacer is available from stock in various fixed lengths. Jumbo hubs for large bore diameters can be optionally used.

    Design of the ARPEX coupling, ARP-6 series

    Variants of the ARPEX coupling, ARP-6 series

    Types

     

    NAN

    Variant with intermediate spacer, various fixed lengths available from stock

    MCECM

    Variant with preassembled intermediate unit and spacer machined on all sides, various fixed lengths available from stock



    Further application-specific coupling types are available in selection module x.CAT at www.flender.com. Dimension sheets and further information are available on request.

    Особенности

    ARPEX couplings of the ARP-6 series are outstanding for their application-optimized construction. The two types NAN and MCECM have been specially designed for drives with uniform to medium loads and at the same time meet the requirements of API 610. The type MCECM with preassembled CEC intermediate unit can also be optionally designed to API 671. A special catcher device serves to secure the intermediate spacer in the event of plate breakage. Their use in potentially explosive environments in accordance with Directive 94/9/EC is possible.

    Технические данные

    Power ratings, type NAN

    Size

    Rated torque

    Maximum torque

    Overload torque

    Fatique torque

    Maximum speed

    Maximum permitted shaft misalignment

    Torsional stiffness

     

    TKN

    TKmax

    TKOL

    TKW

    nKmax

    ±ΔKa

    ±ΔKw

    ±ΔKr

    CT

            

    S = 100 mm

    S = 140 mm

    S = 180 mm

    S = 200 mm

    S = 250 mm

    S = 100 mm

    S = 140 mm

    S = 180 mm

    S = 200 mm

    S = 250 mm

     

    Nm

    Nm

    Nm

    Nm

    rpm

    mm

     

    mm

    mm

    mm

    mm

    mm

    MNm/rad

    MNm/rad

    MNm/rad

    MNm/rad

    MNm/rad

    88-6

    190

    270

    450

    70

    21700

    1.10

    0.7°

    1.15

    1.64

    0.04

    0.04

    115-6

    270

    410

    680

    110

    16600

    1.81

    1.15

    1.64

    2.13

    0.09

    0.09

    0.08

    135-6

    580

    870

    1450

    230

    12700

    2.02

    1.14

    1.62

    2.11

    0.21

    0.19

    0.17

    150-6

    660

    100

    1650

    270

    11400

    2.41

    1.14

    1.62

    2.11

    2.36

    2.97

    0.27

    0.25

    0.24

    0.23

    0.21

    176-6

    1220

    1900

    3100

    490

    9750

    2.75

    1.11

    1.6

    2.09

    2.33

    2.94

    0.44

    0.40

    0.38

    0.36

    0.34

    185-6

    1875

    2900

    4700

    750

    9300

    2.85

    1.09

    1.58

    2.06

    2.31

    2.92

    0.56

    0.52

    0.49

    0.47

    0.44

    212-6

    2850

    4230

    7200

    1200

    8100

    3.06

    1.10

    1.59

    2.08

    2.32

    2.93

    0.81

    0.75

    0.70

    0.67

    0.62

    225-6

    4200

    6300

    10500

    1700

    7650

    3.14

    1.59

    2.08

    2.32

    2.93

    0.85

    0.81

    0.79

    0.74

    256-6

    5750

    8700

    15000

    2300

    6700

    3.69

    1.56

    2.05

    2.3

    2.91

    1.37

    1.31

    1.29

    1.22

    272-6

    8050

    12000

    20000

    3200

    6300

    3.85

    1.51

    2

    2.25

    2.86

    1.44

    1.39

    1.36

    1.3

    298-6

    10000

    15000

    25000

    4000

    5150

    4.19

    1.47

    1.95

    2.2

    2.81

    1.47

    1.43

    1.41

    1.37

    325-6

    12000

    18000

    30000

    4800

    4700

    4.45

    1.93

    2.17

    2.79

    2.48

    2.44

    2.34



    Power ratings, type MCECM

    Size

    Rated torque

    Maximum torque

    Overload torque

    Fatique torque

    Maximum speed

    Maximum permitted shaft misalignment

    Torsional stiffness

     

    TKN

    TKmax

    TKOL

    TKW

    nKmax

    ±ΔKa

    ±ΔKw

    ±ΔKr

    CT

            

    S = 100 mm

    S = 140 mm

    S = 180 mm

    S = 200 mm

    S = 250 mm

    S = 100 mm

    S = 140 mm

    S = 180 mm

    S = 200 mm

    S = 250 mm

     

    Nm

    Nm

    Nm

    Nm

    rpm

    mm

     

    mm

    mm

    mm

    mm

    mm

    MNm/rad

    MNm/rad

    MNm/rad

    MNm/rad

    MNm/rad

    64-4

    100

    150

    250

    40

    22500

    0.80

    0.7°

    0.78

    1.27

    0.009

    0.008

    96-6

    210

    310

    530

    85

    19900

    1.15

    0.78

    1.27

    0.06

    0.05

    120-6

    490

    740

    1250

    200

    15900

    1.47

    0.65

    1.14

    1.62

    0.17

    0.15

    0.13

    142-6

    925

    1400

    2300

    370

    13400

    1.73

    1.04

    1.53

    0.28

    0.25

    162-6

    1600

    2400

    4000

    640

    11800

    2.07

    0.92

    1.40

    1.65

    2.26

    0.43

    0.39

    0.38

    0.34

    190-6

    2500

    3800

    6300

    1000

    10000

    2.36

    0.93

    1.42

    1.66

    2.27

    0.71

    0.65

    0.63

    0.57

    214-6

    3900

    5900

    9800

    1600

    8900

    2.67

    0.78

    1.27

    1.51

    2.13

    1.01

    0.94

    0.92

    0.85

    230-6

    5200

    7800

    13000

    2100

    8300

    2.88

    1.25

    1.49

    2.10

    1.36

    1.32

    1.22

    245-6

    7000

    10500

    18000

    2800

    7800

    2.99

    1.00

    1.25

    1.86

    1.49

    1.45

    1.37

    275-6

    9800

    15000

    25000

    4000

    6250

    3.38

    1.22

    1.83

    1.65

    1.58

    310-6

    12900

    20000

    33000

    5200

    5550

    3.85

    1.64

    2.96

    345-6

    17000

    26000

    43000

    6800

    5000

    4.24

    1.61

    4.12



    The permitted shaft misalignments ΔKa, ΔKr and ΔKw are maximum values and must not occur at the same time (see following table). The permitted shaft misalignment ΔKr applies to the shaft distance S specified in each case.

    The values for torsional stiffness apply to the complete coupling. The torsional stiffness of the plate packs applies to the rated coupling torque TKN. To determine the torsional stiffness for a specific operating point, e.g. for calculating torsional vibration, the manufacturer must be consulted.

    TKmax permitted only five times per hour.

    Permitted shaft misalignments, type NAN

    Size

    Permitted angular misalignment ±ΔKw

    0.0°

    0.1°

    0.2°

    0.3°

    0.4°

    0.5°

    0.6°

    0.7°

     

    Permitted axial misalignment ±ΔKa in mm

    88-6

    1.10

    0.94

    0.79

    0.63

    0.47

    0.31

    0.16

    0.00

    115-6

    1.81

    1.55

    1.29

    1.03

    0.77

    0.52

    0.26

    0.00

    135-6

    2.02

    1.73

    1.44

    1.15

    0.86

    0.58

    0.29

    0.00

    150-6

    2.41

    2.06

    1.72

    1.38

    1.03

    0.69

    0.34

    0.00

    176-6

    2.75

    2.36

    1.96

    1.57

    1.18

    0.79

    0.39

    0.00

    185-6

    2.85

    2.45

    2.04

    1.63

    1.22

    0.82

    0.41

    0.00

    212-6

    3.06

    2.63

    2.19

    1.75

    1.31

    0.88

    0.44

    0.00

    225-6

    3.14

    2.69

    2.24

    1.80

    1.35

    0.90

    0.45

    0.00

    256-6

    3.69

    3.16

    2.64

    2.11

    1.58

    1.05

    0.53

    0.00

    272-6

    3.85

    3.30

    2.75

    2.20

    1.65

    1.10

    0.55

    0.00

    298-6

    4.19

    3.59

    2.99

    2.39

    1.80

    1.20

    0.60

    0.00

    325-6

    4.45

    3.82

    3.18

    2.54

    1.91

    1.27

    0.64

    0.00



    Permitted shaft misalignments, type MCECM

    Size

    Permitted angular misalignment ±ΔKw

    0.0°

    0.1°

    0.2°

    0.3°

    0.4°

    0.5°

    0.6°

    0.7°

     

    Permitted axial misalignment ±ΔKa in mm

    64-4

    0.80

    0.68

    0.57

    0.46

    0.34

    0.23

    0.11

    0.00

    96-6

    1.15

    0.99

    0.82

    0.66

    0.49

    0.33

    0.16

    0.00

    120-6

    1.47

    1.26

    1.05

    0.84

    0.63

    0.42

    0.21

    0.00

    142-6

    1.73

    1.48

    1.23

    0.99

    0.74

    0.49

    0.25

    0.00

    162-6

    2.07

    1.77

    1.48

    1.18

    0.89

    0.59

    0.30

    0.00

    190-6

    2.36

    2.02

    1.68

    1.35

    1.01

    0.67

    0.34

    0.00

    214-6

    2.67

    2.29

    1.91

    1.53

    1.14

    0.76

    0.38

    0.00

    230-6

    2.88

    2.47

    2.06

    1.65

    1.23

    0.82

    0.41

    0.00

    245-6

    2.99

    2.56

    2.13

    1.71

    1.28

    0.85

    0.43

    0.00

    275-6

    3.38

    2.90

    2.41

    1.93

    1.45

    0.97

    0.48

    0.00

    310-6

    3.85

    3.30

    2.75

    2.20

    1.65

    1.10

    0.55

    0.00

    345-6

    4.24

    3.64

    3.03

    2.42

    1.82

    1.21

    0.61

    0.00