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So wählen Sie die Größe von NPS-Rohr und ERW-Rohrmaschine
Zehn . 17.07.2024 10:34
Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. "Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside diameter). Specific pipe is identified by pipe diameter and another non-dimensional number for wall thickness referred to as the Schedule (Sched. or Sch., for example – "2-inch diameter pipe, Schedule 40"). NPS is often incorrectly called National Pipe Size, due to confusion with the American standard for pipe threads, "national pipe straight", which also abbreviates as "NPS". The European and international designation equivalent to NPS is DN (diamètre nominal/nominal diameter/Nennweite), in which sizes are measured in millimetres, see ISO 6708. The term NB (nominal bore) is also frequently used interchangeably with DN.
Anwendung
Basierend auf dem NPS und dem Schedule eines Rohrs[5] können der Außendurchmesser (OD) und die Wandstärke des Rohrs aus Referenztabellen wie den folgenden entnommen werden, die auf den ASME-Standards B36.10M und B36.19M basieren. Beispielsweise hat NPS 14 Sch 40 einen Außendurchmesser von 14 Zoll (360 mm) und eine Wandstärke von 0,437 Zoll (11,1 mm). Allerdings sind die NPS- und OD-Werte nicht immer gleich, was zu Verwirrung führen kann.
ERW-Rohrmaschinengröße zur Auswahl und Referenz
|
Modell |
Rohr-Außendurchmesser |
Dicke |
Quadrat/Rechteck |
Dicke |
Geschwindigkeit |
|
AIS-12 |
φ4~φ12 |
0.2~0.5 |
// |
// |
30~120 |
|
AIS-16 |
φ6~φ16 |
0.2~0.8 |
// |
// |
30~120 |
|
AIS-20 |
φ7~φ20 |
0.2~1.0 |
// |
// |
30~120 |
|
AIS-25 |
φ9~φ25.4 |
0.25~1.2 |
// |
// |
30~120 |
|
AIS-32 |
φ10~φ32 |
0.25~1.5 |
8*8~25.4*25.4 |
0.25~1.2 |
30~120 |
|
AIS-32z |
0.5~2.0 |
0.5~1.5 |
30~100 |
||
|
AIS-40 |
φ12.7~φ40 |
0.3~1.8 |
10*10~31.8*31.8 |
0.3~1.5 |
30~110 |
|
AIS-40z |
0.6~2.0 |
0.6~1.5 |
30~100 |
||
|
AIS-50q |
φ16~φ50.8 |
0.4~1.5 |
12.7*12.7~40*40 |
0.4~1.2 |
30~110 |
|
AIS-50 |
0.5~2.0 |
0.5~1.5 |
30~90 |
||
|
AIS-50z |
0.7~2.5 |
0.7~2.0 |
30~80 |
||
|
AIS-63q |
φ19.05~φ63.5 |
0.6~2.0 |
15*15~50*50 |
0.6~1.5 |
30~90 |
|
AIS-63 |
0.7~3.0 |
0.7~2.5 |
30~80 |
||
|
AIS-63z |
0.8~3.5 |
0.8~3.0 |
20~70 |
||
|
AIS-76q |
φ25.4~φ76.2 |
0.8~2.5 |
20*20~60*60 |
0.8~2.0 |
30~90 |
|
AIS-76 |
0.8~3.5 |
0.8~3.0 |
30~80 |
||
|
AIS-76z |
0.8~4.0 |
0.8~3.5 |
20~70 |
||
|
AIS-90q |
φ30~φ90 |
0.8~3.0 |
25*25~70*70 |
0.8~2.5 |
30~90 |
|
AIS-90 |
0.8~3.5 |
0.8~3.0 |
30~80 |
||
|
AIS-90z |
1.0~4.0 |
1.0~3.5 |
20~70 |
|
AIS-100q |
φ31.8~φ101.6 |
1.0~3.0 |
25*25~80*80 |
1.0~2.5 |
30~90 |
|
AIS-100 |
1.0~3.75 |
1.0~3.25 |
30~80 |
||
|
AIS-100z |
1.0~4.25 |
1.0~3.5 |
20~70 |
||
|
AIS-114q |
φ35~φ114.3 |
1.0~3.0 |
30*30~90*90 |
1.0~2.5 |
20~80 |
|
AIS-114 |
1.2~4.5 |
1.2~4.0 |
20~70 |
||
|
AIS-114z |
φ40~φ114.3 |
1.2~5.0 |
1.2~4.5 |
15~60 |
|
|
AIS-127q |
φ40~φ127 |
1.2~3.5 |
40*40~100*100 |
1.2~3.0 |
20~70 |
|
AIS-127 |
1.5~5.0 |
1.5~4.5 |
15~60 |
||
|
AIS-127z |
φ50~φ127 |
1.5~5.5 |
1.5~5.0 |
10~45 |
|
|
AIS-140q |
φ50~φ141.3 |
1.2~4.0 |
50*50~110*100 |
1.2~3.5 |
15~60 |
|
AIS-140 |
1.5~5.5 |
1.5~5.0 |
10~50 |
||
|
AIS-140z |
φ60~φ141.3 |
2.0~6.0 |
2.0~5.5 |
10~40 |
|
|
AIS-168q |
φ60~φ168.3 |
1.5~5.0 |
60*60~130*130 |
1.5~4.5 |
10~50 |
|
AIS-168 |
2.0~6.0 |
2.0~5.5 |
10~50 |
||
|
AIS-168z |
φ76.2~φ168.3 |
2.5~8.0 |
2.5~7.0 |
10~40 |
|
|
AIS-219q |
φ89.1~φ219.1 |
2.0~6.0 |
70*70~160*160 |
2.0~5.5 |
10~50 |
|
AIS-219 |
3.0~8.0 |
3.0~7.0 |
10~40 |
||
|
AIS-219z |
4.0~10.0 |
4.0~9.0 |
10~40 |
||
|
AIS-273 |
φ114.3~φ273 |
4.0~10.0 |
90*90~200*200 |
4.0~9.0 |
10~40 |
|
AIS-273z |
4.5~12.0 |
120*60~260*130 |
4.5~11.0 |
10~35 |
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