★ Focus on professional manufacturing of pipe fittings for more than 30 years

Language
- 中文
- English

Home page

Product Parameters

GB/T 12459, ASME B16.9, MSS SP-43

Nominal Size		Simplified Outer Diameter		Length		Fillet Radius		Lap Diameter
DN	NPS	OD		F		R		G
DN	NPS	Max.	Min.	Long Type	Short Type	A	B _max	G
15 20 25	1/2 3/4 1	22.8 28.1 35.0	20.5 25.9 32.6	76 76 102	51 51 51	3 3 3	0.8 0.8 0.8	35 43 51
32 40 50	1^1/4 1^1/2 2	43.6 49.9 62.4	41.4 47.5 59.5	102 102 152	51 51 64	5 6 8	0.8 0.8 0.8	64 73 92
65 80 90	2^1/2 3 3^1/2	75.3 91.3 104.0	72.2 88.1 100.8	152 152 152	64 64 76	8 10 10	0.8 0.8 0.8	105 127 140
100 125 150	4 5 6	116.7 144.3 171.3	113.5 140.5 167.5	152 203 203	76 76 89	11 11 13	0.8 1.6 1.6	157 186 216
200 250 300	8 10 12	222.1 277.2 328.0	218.3 272.3 323.1	203 254 254	102 127 152	13 13 13	1.6 1.6 1.6	270 324 381
350 400 450	14 16 18	359.9 411.0 462.0	354.8 405.6 456.0	305 305 305	152 152 152	13 13 13	1.6 1.6 1.6	413 470 533
500 550 600	20 22 24	514.0 565.0 616.0	507.0 558.0 609.0	305 305 305	152 152 152	13 13 13	1.6 1.6 1.6	584 641 692

Note:
1) When short-type flanged short pieces are used for larger flanges of PN 50 and PN 110 (class 300 and 600), as well as most flange specifications greater than or equal to PN 150 (class 900), or when long-type flanged short pieces are used for larger flanges of PN 260 and PN 420 (class 1500 and 2500), to avoid possible welding interference caused by the flange, it may be necessary to increase the length of the barrel. The length increase amount shall be negotiated between the manufacturer and the purchaser.
2) When using tongue-and-groove faces and male-female sealing faces, the thickness of the lap edge must be increased. The increased thickness should be added (not included) to the basic length F.
3) The fillet radius R of type A corresponds to the fillet radius of loose flanges in GB/T 9118.1~9118.2 or ASME B16.5. The fillet radius R of type B is only used in the MSS SP-43 standard, and its length F is short type.
4) The lap diameter G corresponds to the standard machined face shown in ASME B16.5. The back of the lap edge should be machined to be consistent with the mounting surface. When using ring joint sealing faces, use the dimension K given in ASME B16.5.
5) The lap thickness shall not be less than the nominal wall thickness of the pipe.

Process Flow

Production process flow and quality control chart for butt-welded welded and seamless pipe fittings.

Production process flow and quality control chart for forged pipe fittings and flanges.

End Cap

30° angled tee

Description page content……

Flanging

Professional production of various butt-welded, socket-welded, threaded series of elbows, bends, tees, reducers, flanges, lap joints, pipe caps, etc., made of austenitic stainless steel, alloy steel, carbon steel, composite materials, duplex stainless steel, titanium alloy, aluminum alloy, nickel-based alloy, copper alloy, and other materials.

Our company can manufacture according to GB, SH, HG, DL, ASME, DIN, JIS, BS and other standards, or according to drawings and requirements provided by users.

Please contact us for more information:

Email:

Phone:

Product Categories

Butt-welded pipe fittings

Product Description

Description page content……

Get More Product Information