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The socket receives the plug and holds the shut-off valve that closes the supply on disconnection. Its sleeve locks automatically after connection and is moved by hand into the unlock position to release. It belongs on the supply side and weighs 26 g to 35 g depending on the end configuration. Model HA-85SN, Port size ø8.5 mm, PBT/POM, Seal material NBR.

Quick connect coupling HI Cupla ACE HA-85SN, ø8.5 mm, PBT/POM - Nitto Kohki 317540870

NITTO KOHKI Original product
Net price (excl. VAT)
€7.89
Item NKH-317540870
Manufacturer no. 317540870
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Brand new Specialist dealer since 2009 Original product Worldwide shipping
Product data
Manufacturer no.317540870
ConditionNew
Article
NKH-317540870

Changing tools on an air line several times a shift means lifting the weight of the coupling every time. The Nitto Kohki HI Cupla Ace is made of engineering plastics (PBT, POM) and weighs a quarter of the steel HI Cupla, while still working up to 1.5 MPa.

  • Engineering plastic body (PBT, POM) at a quarter of the weight of the steel version, a plug weighs 3 g to 17 g depending on the end configuration
  • Working pressure up to 1.5 MPa, so the rating matches the steel couplings of the range
  • Built-in automatic lock holds the sleeve once the connection is made and prevents accidental disconnection
  • Connection by simply pushing the plug into the socket, no tools required
  • NBR seal (marked SG) for -20 °C to +60 °C, approved media are air and water
  • The plastic body is less likely to mark painted or easily dented surfaces than a metal coupling

Technical data from the manufacturer catalogue

SeriesHI CUPLA ACE
ModelHA-85SN
Coupling partSocket
End connectionFor urethane hose connection
Port sizeø8.5 mm x ø12.5 mm hose
Body materialEngineering plastics (PBT, POM)
Seal materialNBR (Nitrile rubber)
Max working pressure1.5 MPa {15 kgf/cm2}; 1.0 MPa {10 kgf/cm2} for plastic plug and Model HA-T
Working temperatureNBR (Nitrile rubber), standard material: -20 °C to +60 °C
Valve structureOne-way shut-off
Applicable fluidsAir, Water
Vacuum serviceNot suitable for vacuum application in either connected or disconnected condition.
Size rangeThread and hose barb 1/4 inch, 3/8 inch; PN, SN, PNG and SNG types for ø5 mm x ø8 mm, ø6 mm x ø9 mm, ø6.5 mm x ø10 mm, ø8 mm x ø12 mm and ø8.5 mm x ø12.5 mm polyurethane hose
Working pressure by unit1.5 MPa / 15 kgf/cm2 / 15 bar / 218 PSI; 1.0 MPa / 10 kgf/cm2 / 10 bar / 145 PSI for plastic plug and Model HA-T
Size, T typeHA-T type - Inlet : 20P-PLA, Outlet : HA-65S
Tightening torque range, 20/30SM and 20/30PM2.5 to 3.0 {26 to 31} Nm {kgf cm}
Tightening torque range, 50/60/65SN, 50/60/65PN, 50/65SNG and 50/65PNG1.6 to 2.0 {16 to 20} Nm {kgf cm}
Tightening torque range, 80/85SN, 80/85PN, 85SNG and 85PNG2.2 to 2.8 {22 to 29} Nm {kgf cm}
Tightening torque range, 20PFF2.0 to 2.5 {20 to 25} Nm {kgf cm}
Mass0.050 kg
Part number317540870
Catalogue pageC01en-b, 61

Dimensions

Socket dimension sketchSocket dimension sketchLHøBSchematic view of the dimension letters, not to scale.
How the dimension letters in the table map onto the part.
ModelLøBøH(WAF)
HA-85SN(59.5)7Hex.22

Dimensions in millimetres. Values in brackets apply in the connected condition.

Legend: L = overall length; B = bore

Models in this series HI CUPLA ACE

ModelApplicationPlastic (g)LøBøH(WAF)
HA-50SNø5 mm x ø8 mm hose27(57)4Hex.19
HA-60SNø6 mm x ø9 mm hose27(57)4.7Hex.19
HA-65SNø6.5 mm x ø10 mm hose27(57)5.3Hex.19
HA-80SNø8 mm x ø12 mm hose29(59.5)6.5Hex.22
HA-85SNø8.5 mm x ø12.5 mm hose29(59.5)7Hex.22

Every model of the series as printed in the manufacturer catalogue. The row of the article offered here is highlighted.

Operating principle

One-way shut-off (valve in the socket)One-way shut-off (valve in the socket)shut-off valve in socketplug without valveSocketPlugFlow direction: socket to plug
On disconnection the valve in the socket closes the supply line. The fluid left in the plug escapes.
  • The weight is merely a quarter of steel HI CUPLA's and smooth push-in connection is achieved.
  • Separation prevention mechanism for safety operation.
  • Pressure ratings comparable to steel CUPLA.
  • A built-in separation prevention mechanism locks the sleeve upon connection, thus prevents accidental disconnection.
  • Just push plug into socket for simple connection.
  • The weight is a quarter of steel HI CUPLA for easy handling.
  • Can be used for air and water.
  • Air flows in either direction from plug or from socket side when coupled.

Series comparison

SeriesMax working pressureSize rangeValve structureApplicable fluids
MICRO CUPLA10 barThread 1/8 inch, M5x0.8. Tube barb tube ID o3, o4. Tube barb (Tube fitter): polyurethane tube outside dia. o4 +/-0.1, o6 +/-0.1; polyamide tube outside dia. o4 +0.05/-0.08, o6 +0.05/-0.08; fluorine contained resin tube outside dia. o4 +/-0.05, o6 +/-0.07One-way shut-offAir, Water (Tube Fitter type is unsuitable for water.)
SMALL CUPLA10 barThread 1/8 inch, 1/4 inch; Hose barb polyamide hose o4xo6, o4.5xo6, urethane hose o4xo6; Tube barb (Tube fitter) polyurethane tube OD o6 +/-0.1, o8 +/-0.15, polyamide tube OD o6 +0.05/-0.08, o8 +0.05/-0.1, fluorine contained resin tube OD o6 +/-0.07, o8 +/-0.07One-way shut-offAir, Water (Tube Fitter type is unsuitable for water.)
COMPACT CUPLA10 barThread 1/8 inch; tube barb for ø4 x ø6 and ø6 x ø8 tubeTwo-way shut-offAir, Water
CUBE CUPLA10 bar4 mm and 6 mm ID tube, 1/8 inchTwo-way shut-off, one-way shut-off or straight through, depending on the combination of valved and valveless socket and plug.Air, Water
SUPER CUPLA10 barThread: 1/8 inch, 1/4 inch. Hose barb: 1/4 inch, urethane hose ø5 x ø8, ø6.5 x ø10. Tube barb (Tube fitter): outside dia. ø6 and ø8One-way shut-offAir
HI CUPLA ACE15 barThread and hose barb 1/4 inch, 3/8 inch; PN, SN, PNG and SNG types for ø5 mm x ø8 mm, ø6 mm x ø9 mm, ø6.5 mm x ø10 mm, ø8 mm x ø12 mm and ø8.5 mm x ø12.5 mm polyurethane hoseOne-way shut-offAir, Water
HI CUPLA15 barThread and hose barb 1/8 inch to 1 inch, 1/4 inch to 1 inch hoseOne-way shut-offAir, Water
HI CUPLA 20015 barThread and hose barb 1/4 inch, 3/8 inch, 1/2 inch. Tube barb (Tube fitter): Polyurethane tube outer dia. 6 +/-0.1, 8 +/-0.15, 10 +/-0.15; Polyamide tube outer dia. 6 +0.05/-0.08, 8 +0.05/-0.1, 10 +0.05/-0.1; Fluorine contained resin tube outer dia. 6 +/-0.07, 8 +/-0.07, 10 +/-0.07.One-way shut-offAir

Pick HI CUPLA ACE for air lines that need the 1.5 MPa {15 kgf/cm2} class together with a plastic body at a quarter of the weight of steel HI CUPLA and a sleeve lock against accidental disconnection; plastic plugs and Model HA-T stay at 1.0 MPa {10 kgf/cm2}. MICRO CUPLA, SMALL CUPLA, SUPER CUPLA, COMPACT CUPLA and CUBE CUPLA are rated 1.0 MPa {10 kgf/cm2} and come into question only where that lower pressure is sufficient, and COMPACT CUPLA and CUBE CUPLA where shut-off on both sides is required instead of the one-way shut-off of HI CUPLA ACE. Where the same 1.5 MPa {15 kgf/cm2} is needed in metal, HI CUPLA, HI CUPLA 200, FULL BLOW CUPLA and LINE CUPLA 200 remain available; HI CUPLA ACE is interchangeable with HI CUPLA models 10, 17, 20, 30, 40 and 60.

Body and seal materials

Body material
Engineering plastics (PBT, POM)
Seal materialMarkWorking temperatureRemarks
NBR (Nitrile rubber), standard material--20 °C to +60 °C-

Applications

  • Pneumatic tools on the shop air line with frequent tool changes
  • Polyurethane hose from ø5 x ø8 mm to ø8.5 x ø12.5 mm on the PN and SN end types
  • Water lines in the range up to 1.5 MPa
  • Workstations with painted or thin-walled parts where metal couplings leave marks
  • Two branch lines from one supply through the HA-T socket with inlet 20P-PLA and two HA-65S outlets

Compatibility

The range connects with HI Cupla models 10, 17, 20, 30 and 40 and is interchangeable with the Nut Cupla series and the HI Cupla series, except models 400, 600 and 800. Air flows in either direction once coupled, and the range is not suitable for vacuum in either the connected or the disconnected state.

Standards and compliance

End connections use Rc 1/4, Rc 3/8, R 1/4, R 3/8 and G 1/4 threads, the sealing material is nitrile rubber (NBR, marked SG).

Safety and application notes

  • Before use, please be sure to read the Safety Guide described at the end of this book and the Instruction Sheet that comes with the products.

All technical data on this page is taken from the Nitto Kohki general catalogue Quick Connect Couplings C01en-b, page 61. The complete catalogue is available for download on this page.

More Information
Manufacturer Nr. 317540870
Manufacturer Nitto Kohki
Weight 0.050000
GPSR manufacturer information Nitto Kohki Europe GmbH, Gottlieb-Daimler-Str. 10, DE-71144 Steinenbronn, www.nitto-kohki.eu
Article authenticity Original product
Condition of article New
Anschlussgröße ø8.5 mm
Medientemperatur [°C] -20 ... +60 °C
Bore (mm) 7.000000
Betriebsdruck max [bar] 15.000000
Overall length [mm] 59.500000