Japan, NAGAHORI INDUSTRY, Quick Couplings
NAC – SH TYPE Quick Couplings
Made in Japan
Manufacturer : NAGAHORI INDUSTRY CO., LTD.
Model : 02, 03, 04, 06, 08
- High pressure (20.5MPa) Twin valve Type, Stainless Body
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- Both socket and plug have automatic shut-off valves for high pressure applications.
- Stainless steel SUS304 for excellent resistance to corrosion.
- The design of inner seal mechanism allows working pressure of 20.5 MPa.
- Double-sleeve lock assures tight connection against vibration and impulse.
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- 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
Model
|
02
|
03
|
04
|
06
|
08
|
---|---|---|---|---|---|
Nominal size
|
1/4″
|
3/8″
|
1/2″
|
3/4″
|
1″
|
Nominal pipe size (mm)
|
8
|
10
|
15
|
20
|
25
|
Body material
|
Stainless steel(SUS304)
|
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Connection
|
Female thread only
|
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Packing material
|
Fluororubber(FKM)
|
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Normal pressure
|
20.5MPa
|
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Max.pressure
|
31.0MPa
|
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Applicable fluids
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Hydraulic Oil, Water, Gas
|
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Accessory
|
Dust Cover
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Packing material and Working temperature’s range
Packing material
|
Mark
|
Feature
|
---|---|---|
Nitrile rubber
|
NBR
|
Oil resistance
|
Fluororubber
|
FKM
|
Heat, oil resistance
|
Flow’s smallest area
(mm2)
Model
|
02
|
03
|
04
|
06
|
08
|
---|---|---|---|---|---|
Smallest area
|
26
|
47
|
84
|
153
|
233
|