Expansion Joints, Japan, NFK, Pipe
NK-10000 Square Type Expansion Joint
Product Made in Japan
Model: NK-10000
expansion joints are used in gas and liquid transport system lines used by steel making, chemical and industrial plants to transport substances such as air, water, gases, steam, oil and exhaust gases. They can compensate for expansion and contraction caused by temperature differences in air-conditioning/sanitation lines in buildings and other structures. They also handle conditions such as line center misalignment, vibrations, foundation subsidence and earthquakes.
Use
These product are used for duct piping.
Fluid: Air,Exhaust Gas
U-shaped bellows (Round corner type)
Amount of expansion / contraction
| Bellows Material | H | 50 | 75 | 100 |
|---|---|---|---|---|
| t | ||||
| Various SUS | 1.0 | 13.5mm | – | – |
| 1.2 | 11.5mm | – | – | |
| 1.5 | – | 20mm | 32mm | |
| 2.0 | – | – | 27mm | |
| Esten | 1.6 | – | 18mm | 30mm |
| 2.3 | – | 13mm | 21mm | |
| Pitch | 50 | 70 | 80 | |
| Maximum number of Convolution | 6 | 5 | 4 | |
※Expansion / contraction amount per Convolution
U-shaped bellows(Single corner type)
Amount of expansion / contraction
| H | 50 | 75 | 100 |
|---|---|---|---|
| t | |||
| 1.2 | 11.5mm | 25.6mm | 40mm |
| 1.5 | 9.2mm | 20.6mm | 36mm |
| Pitch | 50 | 75 | 100 |
| Maximum number of Convolution | 3 | 3 | 3 |
※Expansion / contraction amount per Convolution
Bellows Material
SUS304, 316, 316L, 310S, 321, Hastelloy, Inconel, Esten
V-shaped bellows(Camera corner type)
Amount of expansion / contraction
| H | 50 | 75 | 100 | 125 |
|---|---|---|---|---|
| t | ||||
| 0.8 | 12mm | – | – | – |
| 1.0 | 9mm | 22mm | 30mm | 36mm |
| 1.2 | 8mm | 18mm | 30mm | 36mm |
| 1.5 | 6mm | 14mm | 26mm | 36mm |
| 2.0 | 4mm | 11mm | 19mm | 30mm |
| Pitch | 20 | 30 | 35 | 40 |
| Maximum number of Convolution | 10 | 8 | 6 | 4 |
※Expansion / contraction amount per Convolution
Bellows Material
SUS304, 316, 316L, 310S, 321, Hastelloy, Inconel, Esten
