Japan, NAGAHORI INDUSTRY, Quick Couplings
NAC – SPE TYPE (PAT.) Quick Couplings
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Made in Japan
Manufacturer : NAGAHORI INDUSTRY CO., LTD.
Model : CSPE01, CSPE02, CSPE03, CSPE04, CSPE06, CSPE08
- Large, Smooth flow and Energy-Saving Type
- Medium pressure, Twin valve Type
-
- Interchangeable with conventional CSP types.
- Both socket and plug have automatic shut-off valves for medium pressure applications.
- Various packing materials enable a wide variety of applications.
- 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
|
01
|
02
|
03
|
04
|
06
|
08
|
||||
---|---|---|---|---|---|---|---|---|---|---|
Nominal Size
|
1/8″
|
1/4″
|
3/8″
|
1/2″
|
3/4″
|
1″
|
||||
Nominal pipe size (mm)
|
6
|
8
|
10
|
15
|
20
|
25
|
||||
Body material
|
Brass, Stainless steel (SUS304) (*1)
|
|||||||||
Connection
|
Female thread (F) only
|
|||||||||
Packing material
|
Fluororubber (FKM)
|
|||||||||
Normal pressure
|
Brass
|
5.0MPa
|
3.0MPa
|
|||||||
Max.pressure
|
7.5MPa
|
4.5MPa
|
||||||||
Normal pressure
|
Stainless steel
|
7.5MPa
|
4.5MPa
|
|||||||
Max.pressure
|
10.0MPa
|
6.5MPa
|
||||||||
Applicable fluid
|
Water, Air, Steam piping, Oil, Chemical plant, Ship, etc. (*2)
|
(*1) Steel body (Zinc-plated) is option.
(*2) Packing material should be selected for the applicable fluid.
(*2) Packing material should be selected for the applicable fluid.
Packaging Material and Working Temperature’s Range
Packing material
|
Mark
|
Feature
|
---|---|---|
Nitrile rubber
|
NBR
|
Oil resistance
|
Fluororubber
|
FPM
|
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
|
---|---|---|---|---|---|---|
Smallest area
|
13
|
23
|
55
|
83
|
143
|
234
|
Feature
We developed to minimize pressure loss, by analyzing the flow condition in the inner mechanism.
*Studding the block of flow in the each structures, we found the solutions to reduce the loss.
We designed the new inner parts to make ideal flow condition.

Comparison of the average flow
|
To CSP TYPE
|
---|---|
CSPE01
|
130 %
|
CSPE02
|
183 %
|
CSPE03
|
160 %
|
CSPE04
|
164 %
|
CSPE06
|
188 %
|
CSPE08
|
169 %
|
*Flow from socket to plug
Change of seal improved the packing function.
*The move of seal position to the front makes the flow larger and smoother.
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