Welding Pipe Fittings Series
Elbow|Welding Reducers
Straight Tee|Reducing Tee
Welding Cap|Welding Bend
Welding Pipe Fittings Series - Lap Joint Stub End

Forged Socket pipe fittings series
Type 1 Forged Socket Pipe|Type 2 Forged Socket Pipe
Forged Socket Reducing Insertion Pieces|Union

Forged Threaded Pipe Fitting Series
Type 1 Threaded Pipe Fittings|Type 2 Threaded Pipe Fittings
Type 3 threaded pipe fittings|Nipples
Threaded Short Pipe|Fire-fighting Threaded Pipe Fittings

Steel Flange Series
Slip-on welding flange|Welding neck flange
Lapped welding flange|Blind Flange
O-let series
Sockolet |Threadolet
Weldolet|Nipolet Parameters
Latrolet|Elbolet
Swage Nipple
Stainless Straight Tee Carbon Straight Tee Stainless Straight Cross
High-pressure Tee Forged Tee

 ◆ Carbon steel （10#、20#、A3、Q235A、20G、16Mn、ASTM A234、ASTM A105、ASTM A403）；
 ◆ Austenitic stainless steel（1Cr18Ni9Ti、0Cr18Ni9、00Cr19Ni10、0Cr17Ni12Mo2Ti、00Cr17Ni14Mo2、304 304L、316、316L）；
 ◆ Alloy steel（16MnR、Cr5Mo、12Cr1MoV、10CrMo910、15CrMo、12Cr2Mo1、A335P22、St45.8/Ⅲ、 A10bB）
            Welding Elbow Parameters（GB 12459、GB/T 13401）
Nominal Pipe Size DN End OD
D Center to center 
Series A Series B C M
15
21.3
18
25
20
26.9
25
29
25
33.7
32
38
32
42.4
38
48
40
48.3
45
57
50
60.3
57
64
65
76.1(73)
76
76
80
88.9
89
86
90
101.6
―
95
100
114.3
108
105
125
139.7
133
124
150
168.3
159
143
200
219.1
219
178
250
273.0
273
216
300
323.9
325
254
350
355.6
377
279
400
406.4
426
305
450
457.2
478
343
500
508.0
529
381
550
559
―
419
600
610
630
432
650
660
―
495
700
711
720
521
750
762
―
559
800
813
820
597
850
864
―
635
900
914
920
673
950
965
―
711
1000
1016
1020
749
1050
1067
―
762
711
1100
1118
1120
813
762
1150
1168
―
851
800
1200
1220
1220
889
838


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