Japan, NAGAHORI INDUSTRY, Quick Couplings
NAC – TL TYPE Quick Couplings

Made in Japan
Manufacturer : NAGAHORI INDUSTRY CO., LTD.
Model : 01, 02, 03, 04, 06, 08, 10, 12, 16
Medium pressure, Valveless Type
- Valveless structure reduces pressure loss and allows high flow rates.
- This is suitable for piping of viscous fluid, steam or powder.
- Various packing materials enables a wide variety of applications.
- SUS316 is available.
- Male thread, female thread and hose nipple can be connected in one size.
- Other packing material are available; please consult with us.
- When connected, the fluid is sealed completely by O-ring.
- Fluid can flow from both socket and plug.
Caution:
- Do not connect or disconnect couplings under pressure.
- Fluid in pipe will be discharged on disconnection. Be careful when dangerous fluids are to be used. (Such as chemicals or hot fluids)
- Different sizes are not interchangeable.
- Scraps of the seal tape and dust causes fluid leakage. Be careful not to stick them to the couplings.
- Do not impact, hit, pull or bent. Don’t dismantle. It causes damage to the coupling.
Specification
Brass = B , Stainless steel = S , Steel = C Pressure Unit (MPa)
Model | 01 | 02 | 03 | 04 | 06 | 08 | 10 | 12 | 16 | |
---|---|---|---|---|---|---|---|---|---|---|
Nominal Size | 1/8″ | 1/4″ | 3/8″ | 1/2″ | 3/4″ | 1″ | 11/4″ | 11/2″ | 2″ | |
Nominal pipe size (mm) | 6 | 8 | 10 | 15 | 20 | 25 | 32 | 40 | 50 | |
Body material | Brass, Stainless steel (SUS304, SUS316*), steel (Zinc-plated) SC | |||||||||
Connection | Female thread (F), Male thread (M), Hose nipple (H) | |||||||||
Packing material | B | Fluororubber (FKM) | ||||||||
S | ||||||||||
C | Nitrile rubber (NBR) | |||||||||
Normal pressure | B | 5.0 | 3.0 | 2.0 | 1.5 | |||||
Max.pressure | 7.5 | 4.5 | 3.0 | 2.3 | ||||||
Normal pressure | S | 7.5 | 4.5 | 3.0 | 2.0 | |||||
Max.pressure | 10.0 | 6.5 | 4.0 | 3.0 | ||||||
Normal pressure | C | 7.5 | 4.5 | 3.0 | 2.0 | |||||
Max.pressure | 10.0 | 6.5 | 4.0 | 3.0 | ||||||
Applicable fluid | B | Air, Water, Heavy oil, etc. | ||||||||
S | Air, Water, Heavy oil, etc. | |||||||||
C | Air, Hydraulic oil, etc. |
*Stainless steel (SUS316) is option.
Packing material and Working temperature’s range
Packing material | Mark | Feature |
---|---|---|
Nitrile rubber | NBR | Oil resistance |
Fluororubber | FKM | Heat, oil resistance |
Perfluoro® | P | Chemical resistance |
Ethylene propylene | EPDM | Weathering resistance |
Heat resistant FPM | A | Steam resistance |
Kalrez® | K | Chemical, heat resistance |
Perfluoro® is a trademark of Daikin, Japan.
Kalrez® is a trademark of DuPont Performance Elastomers LLC, U.S.A.
Flow’s smallest area
(mm2)
Model | 01 | 02 | 03 | 04 | 06 | 08 | 10 | 12 | 16 |
---|---|---|---|---|---|---|---|---|---|
Hose nipple (H) | 7 | 19.6 | 38 | 78.5 | 176 | 283 | 530 | 804 | 1256 |
Female thread (F) Male thread (M) | 15.9 | 33 | 78.5 | 132 | 226 | 452 | 804 | 1134 | 1885 |