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

Made in Japan
Manufacturer : NAGAHORI INDUSTRY CO., LTD.
Model : 01, 02, 03, 04, 06, 08, 10, 12, 16
Medium pressure, Twin valve Type
- Both socket and plug have automatic shut-off valves for medium pressure applications.
- Various packing materials enable a wide variety of applications.
- SUS 316 is available.
- When disconnecting, both socket and plug are sealed by automatic shut off valves instantly.
- When connecting, automatic shut off valves are open and the socket is sealed by O-ring.
- Fluid can flow from both socket and plug.
- Packing material should be selected for the applicable fluid; please consult us for suitable packing material.
- When connecting to a female thread or a hose, please use a nipple.
- Different sizes are not interchangeable.
Caution:
- Do not connect or disconnect couplings under pressure.
- Don’t apply pressure on a socket or a plug when disconnecting. This may cause the valve blown out.
- Don’t hit the top of valve with hammer or other tools. This may cause leakage or malfunction.
- Don’t use for water-glycol fluid, which damages to the plating and O-ring.
- When mounting on the male thread, excessive tightening may cause the crack of the coupling.
- Scraps of the seal tape and dust causes fluid leakage. Be careful not to stick them on the couplings.
- Putting dust covers on a socket and a plug is recommendable, when they are disconnected.
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) | |||||||||
Steel (Zinc-plated) SC, Stainless steel (SUS316*) | ||||||||||
Connection | Female thread (F) only | |||||||||
Packing material | B | – | Fluororubber (FKM) | |||||||
S | – | |||||||||
C | Nitrile rubber (NBR) | |||||||||
Normal pressure | B | – | 2.0 | 1.5 | ||||||
Max.pressure | 3.0 | 2.3 | ||||||||
Normal pressure | S | – | 3.0 | 2.0 | ||||||
Max.pressure | 4.5 | 3.0 | ||||||||
Normal pressure | C | 7.5 | 4.5 | 3.0 | 2.0 | |||||
Max.pressure | 10.0 | 6.5 | 4.5 | 3.0 | ||||||
Applicable fluid | B | – | Hydraulic oil, Water, Air etc. | |||||||
S | – | |||||||||
C | Hydraulic oil, Air etc. |
*Stainless steel (SUS316) is option.
Packaging 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 |
---|---|---|---|---|---|---|---|---|---|
Smallest area | 13 | 23 | 55 | 83 | 143 | 234 | 378 | 536 | 803 |
Related Products
-
Tosei Sharyo GLF(Low Floor) Hydraulic Lifter
-
Furuto Industrial (Monf) H-520 Self-adhesive insulation tape (adhesive polyethylene tape)
-
TERAOKA SEISAKUSHO 7048 0.07 Black HF Double-coated adhesive film tape
-
SHOWA SOKKI 9900 Vibration waveform capture software Vibroview
-
SHIGEMATSU AL-15 Supplied Air Respirator
-
KONAN TA2 Series Rotary Actuator With 5-Port Solenoid Valve Single-Acting Type [Type R]