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HG /T 20631 (A/B) - 2009 Spiral Wound Gaskets For Use With Steel Pipe Flanges - Type A, B


Unit: 毫米(mm)
Nominal Diameter
DN
15 20 25
Nominal size NPS
D1
D2 Type A Class300~2500(PN50~420)
D3 Type A Class300~2500(PN50~420)
D2 Type B Class300~1500(PN50~260)
D3 Type B Class300~1500(PN50~260)
D2 Type B Class2500(PN420)
D3 Type B Class2500(PN420)
T
t
1/2 3/4 1
14.3 20.6 27
25.4 33.3 38.1
34.9 42.9 50.8
25.4 33.3 38.1
34.9 42.9 50.8
20.6 27 31.8
34.9 42.9 50.8
3.2 3.2 3.2
2 2 2

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