fl series couplings 1

FL SERIES

The FL Series Flat Face Couplings are designed with high corrosion resistance and excellent fatigue life. The FL couplings are manufactured in 316 stainless steel to eliminate leakage during connection/disconnection, reduce contamination in the circuit, and offer optimal resistance to corrosion. Standard seals are Viton/Fluorocarbon; other materials available for various fluids and operating temperatures.

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Description

ISO 16028 Interchange

Features
  • Size range: 1/4” thru 2”
  • Port options: NPT, SAE, BSP
  • Interchanges with ISO 16028
  • Working pressure: 15-35 MPa/2175-5075 psi range
  • Minimal pressure drop design
  • Minimal air inclusion during connection
  • Non-spill design eliminates leaks and contamination
Applications
  • Highly corrosive environments or transmission of corrosive fluids
  • Ideal for offshore, marine, industrial equipment, chemical, pharmaceutical and food processing

Pressure Drop

fl pressure drop

Performance

MAX OPERATING PRESSURE BURST PRESSURE
COUPLED COUPLED MALE FEMALE SPILLAGE*
DESCRIPTION SIZE ISO SIZE MPa psi MPa psi MPa psi MPa psi ml
FL4 1/8 – 35 5075 140 20300 140 20300 120 17400 0.005
FL7 1/4 6.3 35 5075 140 20300 120 17400 48 6960 0.006
FL9 3/8 10.0 35 5075 140 20300 120 17400 60 8700 0.012
FL13 1/2 12.5 35 5075 120 17400 110 15950 60 8700 0.020
FL15 5/8 16.0 35 5075 120 17400 100 14500 48 6960 0.026
FL17 3/4 19.0 33 4785 100 14500 80 11600 48 6960 0.032
FL21 1 25.0 28 4060 90 13050 80 11600 48 6960 0.035
FL27 1 1/2 – 23 3335 80 11600 70 10150 32 4640 0.050
FL45 2 – 15 2175 60 8700 60 8700 28 4060 0.100

Size Diagram

fl size diagram

WEIGHT
DESC. BODY SIZE A UNIT B C D E F G H I J UNIT MALE FEMALE
FL4 1/8 1/8 1/8 mm 17.0 19.0 36.3 20.0 40.0 68.4 18.5 20.5 11.6 kg 0.037 0.074
inch 0.67 0.75 1.43 0.79 1.57 2.69 0.73 0.81 0.46 lb 0.08 0.16
FL7 1/4 1/4 1/4 mm 22.0 22.0 49.4 28.0 48.3 86.7 23.8 23.8 16.1 kg 0.098 0.142
inch 0.87 0.87 1.94 1.10 1.90 3.41 0.94 0.94 0.63 lb 0.22 0.31
FL9 3/8 3/8 3/8 mm 24.0 27.0 59.9 32.0 64.2 108.6 26.0 29.0 19.7 kg 0.124 0.245
inch 0.94 1.06 2.36 1.26 2.53 4.28 1.02 1.14 0.78 lb 0.27 0.54
FL9 1/2 3/8 1/2 mm 27.0 27.0 62.4 32.0 69.2 116.1 29.0 29.0 19.7 kg 0.120 0.242
inch 1.06 1.06 2.46 1.26 2.72 4.57 1.14 1.14 0.78 lb 0.26 0.53
FL13 1/2 1/2 1/2 mm 32.0 32.0 70.5 38.0 73.8 127.0 33.8 33.8 24.5 kg 0.259 0.378
inch 1.26 1.26 2.78 1.50 2.91 5.00 1.33 1.33 0.96 lb 0.57 0.83
FL13 3/4 1/2 3/4 mm 36.0 36.0 70.5 38.0 80.8 134.0 38.5 38.5 24.5 kg 0.255 0.375
inch 1.42 1.42 2.78 1.50 3.18 5.28 1.52 1.52 0.96 lb 0.56 0.83
FL15 3/4 5/8 3/4 mm 36.0 36.0 70.5 42.0 80.9 133.8 38.5 38.5 27.0 kg 0.282 0.492
inch 1.42 1.42 2.78 1.65 3.19 5.27 1.52 1.52 1.06 lb 0.62 1.08
FL17 1 3/4 1 mm 46.0 46.0 82.2 48.0 92.9 153.3 49.5 49.5 30.0 kg 0.432 0.795
inch 1.81 1.81 3.24 1.89 3.66 6.04 1.95 1.95 1.18 lb 0.95 1.75
FL21 1 1/4 1 1 1/4 mm 55.0 55.0 90.0 55.0 106.2 173.0 59.8 59.8 36.0 kg 0.672 1.226
inch 2.17 2.17 3.54 2.17 4.18 6.81 2.35 2.35 1.42 lb 1.48 2.70
FL27 1 1/2 1 1/2 1 1/2 mm 70.0 65.0 111.0 80.0 132.4 214.8 76.0 72.0 57.0 kg 1.890 2.908
inch 2.76 2.56 4.37 3.15 5.21 8.46 2.99 2.83 2.24 lb 4.17 6.41
FL45 2 2 2 mm 75.0 80.0 123.8 100.0 156.6 241.5 83.5 88.5 73.0 kg 2.290 5.230
inch 2.95 3.15 4.87 3.94 6.17 9.51 3.29 3.48 2.87 lb 5.05 11.53

FL Series Accessories Coupler Dust Cap | Nipple Dust Cap

PART BODY SIZE PORT SIZE THREAD TYPE ORDER CODE PART DESCRIPTION
FL NPT THREAD
COUPLER 1/8 1/8 NPT 802401118 F. FL4 1/8 NPT
NIPPLE 1/8 1/8 NPT 802401119 M. FL4 1/8 NPT
COUPLER 1/4 1/4 NPT 802401100 F. FL7 1/4 NPT
NIPPLE 1/4 1/4 NPT 802401101 M. FL7 1/4 NPT
COUPLER 3/8 3/8 NPT 802401102 F. FL9 3/8 NPT
NIPPLE 3/8 3/8 NPT 802401103 M. FL9 3/8 NPT
COUPLER 3/8 1/2 NPT 802401104 F. FL9 1/2 NPT
NIPPLE 3/8 1/2 NPT 802401105 M. FL9 1/2 NPT
COUPLER 1/2 1/2 NPT 802401106 F. FL13 1/2 NPT
NIPPLE 1/2 1/2 NPT 802401107 M. FL13 1/2 NPT
COUPLER 1/2 3/4 NPT 802401108 F. FL13 3/4 NPT
NIPPLE 1/2 3/4 NPT 802401109 M. FL13 3/4 NPT
COUPLER 5/8 3/4 NPT 802401110 F. FL15 3/4 NPT
NIPPLE 5/8 3/4 NPT 802401111 M. FL15 3/4 NPT
COUPLER 3/4 1 NPT 802401112 F. FL17 1 NPT
NIPPLE 3/4 1 NPT 802401113 M. FL17 1 NPT
COUPLER 1 1 1/4 NPT 802401114 F. FL21 1 1/4 NPT
NIPPLE 1 1 1/4 NPT 802401115 M. FL21 1 1/4 NPT
COUPLER 1 1/2 1 1/2 NPT 802401116 F. FL27 1 1/2 NPT
NIPPLE 1 1/2 1 1/2 NPT 802401117 M. FL27 1 1/2 NPT
COUPLER 2 2 NPT 802401120 F. FL45 2 NPT
NIPPLE 2 2 NPT 802401121 M. FL45 2 NPT
FL SAE THREAD
COUPLER 1/8 3/16 SAE 802404100 F. FL4 3/16 SAE
NIPPLE 1/8 3/16 SAE 802404101 M. FL4 3/16 SAE
COUPLER 1/4 3/8 SAE 802404102 F. FL7 3/8 SAE
NIPPLE 1/4 3/8 SAE 802404103 M. FL7 3/8 SAE
COUPLER 3/8 1/2 SAE 802404104 F. FL9 1/2 SAE
NIPPLE 3/8 1/2 SAE 802404105 M. FL9 1/2 SAE
COUPLER 3/8 5/8 SAE 802404106 F. FL9 5/8 SAE
NIPPLE 3/8 5/8 SAE 802404107 M. FL9 5/8 SAE
COUPLER 1/2 5/8 SAE 802404108 F. FL13 5/8 SAE
NIPPLE 1/2 5/8 SAE 802404109 M. FL13 5/8 SAE
COUPLER 1/2 1/2 SAE 802404110 F. FL13 1/2 SAE
NIPPLE 1/2 1/2 SAE 802404111 M. FL13 1/2 SAE
COUPLER 1/2 3/4 SAE 802404112 F. FL13 3/4 SAE
NIPPLE 1/2 3/4 SAE 802404113 M. FL13 3/4 SAE
COUPLER 5/8 3/4 SAE 802404114 F. FL15 3/4 SAE
NIPPLE 5/8 3/4 SAE 802404115 M. FL15 3/4 SAE
COUPLER 3/4 1 SAE 802404116 F. FL17 1 SAE
NIPPLE 3/4 1 SAE 802404117 M. FL17 1 SAE
COUPLER 1 1 1/4 SAE 802404118 F. FL21 1 1/4 SAE
NIPPLE 1 1 1/4 SAE 802404119 M. FL21 1 1/4 SAE
COUPLER 1 1/2 1 1/2 SAE 802404120 F. FL27 1 1/2 SAE
NIPPLE 1 1/2 1 1/2 SAE 802404121 M. FL27 1 1/2 SAE
COUPLER 2 2 SAE 802404122 F. FL45 2 SAE
NIPPLE 2 2 SAE 802404123 M. FL45 2 SAE

Additional information

Body Size

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Material

Port Options

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Port Size

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Valve Style

Working Pressure

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