Japan, NAGAHORI INDUSTRY, Quick Couplings
NAC – SP-V TYPE Quick Couplings
- Made in Japan
Manufacturer : NAGAHORI INDUSTRY CO., LTD.
Model : 01V, 02V, 03V, 04V - Medium pressure, Twin valve Vacuum Type
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- Both socket and plug have automatic shut-off valves for wide range of vacuum applications down to 1.3 x 10-1Pa.
- Interchangeable with SP types but restricts flow.
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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
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01V
|
02V
|
03V
|
04V
|
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Nominal Size
|
1/8″
|
1/4″
|
3/8″
|
1/2″
|
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Nominal pipe size (mm)
|
6
|
8
|
10
|
15
|
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Body material
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Brass, Stainless steel (SUS304)
|
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Connection
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Female thread (F) only
|
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Packing material
|
Standard
|
Chloroprene Rubber (CR)
|
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Option
|
Fluororubber (FKM)
Nitrile rubber hydride(H-NBR) |
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Normal pressure
|
Brass
|
5.0MPa
|
3.0MPa
|
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Max.pressure
|
7.5MPa
|
4.5MPa
|
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Normal pressure
|
Stainless
|
7.5MPa
|
4.5MPa
|
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Max.pressure
|
10.0MPa
|
6.5MPa
|
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Applicable fluid
|
CR : R12/22, Helium, Nitrogen, Air
FPM : R12, Helium, Nitrogen, Air H-NBR : R134a |
Packing material and Working temperature’s range
Packing material
|
Chloroprene Rubber
|
Nitrile rubber hydride
|
---|---|---|
Mark
|
CR
|
H-NBR
|
Advantage
|
Resistant to CFC-12, HCFC-22 and HFC-134a
|
Resistant to HFC-134a, R410A, R407C and R404A
|
Application
|
Air conditioner
|
Air conditioner |
Flow’s smallest area
(mm2)
Model
|
01V
|
02V
|
03V
|
04V
|
---|---|---|---|---|
Smallest area
|
15
|
23.1
|
52
|
98.2
|