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
|
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