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Product Parameters

GB/T 12459, GB/T 13401, ASME B16.9

Nominal Size		End Outer Diameter	Face to Face
DN	NPS	OD1×OD2	H
20×15 20×10	3/4×1/2 3/4×3/8	26.7×21.3 26.7×17.1	38
25×20 25×15	1×3/4 1×1/2	33.4×26.7 33.4×21.3	51
32×25 32×20 32×15	1^1/4 ×1 1^1/4 ×3/4 1^1/4 ×1/2	42.2×33.4 42.2×26.7 42.2×21.3	51
40×32 40×25 40×20 40×15	1^1/2 ×1 ^1/4 1^1/2 ×1 1^1/2 ×3/4 1^1/2 ×1/2	48.3×42.2 48.3×33.4 48.3×26.7 48.3×21.3	64
50×40 50×32 50×25 50×20	2×1 ^1/2 2×1 ^1/4 2×1 2×3/4	60.3×48.3 60.3×42.2 60.3×33.4 60.3×26.7	76
65×50 65×40 65×32 65×25	2^1/2 ×2 2^1/2 ×1 ^1/2 2^1/2 ×1 ^1/4 2^1/2 ×1	73.0×60.3 73.0×48.3 73.0×42.2 73.0×33.4	89
80×65 80×50 80×40 80×32	3×2 ^1/2 3×2 3×1 ^1/2 3×1 ^1/4	88.9×73.0 88.9×60.3 88.9×48.3 88.9×42.2	89
90×80 90×65 90×50 90×40 90×32	3^1/2 ×3 3^1/2 ×2 ^1/2 3^1/2 ×2 3^1/2 ×1 ^1/2 3^1/2 ×1 ^1/4	101.6×88.9 101.6×73.0 101.6×60.3 101.6×48.3 101.6×42.2	102
100×90 100×80 100×65 100×50 100×40	4×3 ^1/2 4×3 4×2 ^1/2 4×2 4×1 ^1/2	114.3×101.6 114.3×88.9 114.3×73.0 114.3×60.3 114.3×48.3	102
125×100 125×90 125×80 125×65 125×50	5×4 5×3 ^1/2 5×3 5×2 ^1/2 5×2	141.3×114.3 141.3×101.6 141.3×88.9 141.3×73.0 141.3×60.3	127
150×125 150×100 150×90 150×80 150×65	6×5 6×4 6×3 ^1/2 6×3 6×2 ^1/2	168.3×141.3 168.3×114.3 168.3×101.6 168.3×88.9 168.3×73.0	140
200×150 200×125 200×100 200×90	8×6 8×5 8×4 8×3 ^1/2	219.1×168.3 219.1× 141.3 219.1× 114.3 219.1× 101.6	152
250×200 250×150 250×125 250×100	10×8 10×6 10×5 10×4	273.0×219.1 273.0×168.3 273.0×141.3 273.0 × 114.3	178
300×250 300×200 300×150 300×125	12×10 12×8 12×6 12×5	323.8× 273.0 323.8×219.1 323.8× 168.3 323.8× 141.3	203
350×300 350×250 350×200 350×150	14×12 14×10 14×8 14×6	355.6×323.8 355.6×273.0 355.6×219.1 355.6×168.3	330
400×350 400×300 400×250 400×200 400×150	16×14 16×12 16×10 16×8 16×6	406.4×355.6 406.4×323.8 406.4×273.0 406.4×219.1 406.4×168.3	356
450×400 450×350 450×300 450×250 450×200	18×16 18×14 18×12 18×10 18×8	457.0×406.4 457.0× 355.6 457.0×÷323.8 457.0×273.0 457.0×219.1	381
500×450 500×400 500×350 500×300 500×250	20×18 20×16 20×14 20×12 20×10	508.0×457.0 508.0×406.4 508.0×355.6 508.0×323.8 508.0×273.0	508
550×500 550×450 550×400 550×350 550×300	22×20 22×18 22×16 22×14 22×12	559.0×508.0 559.0×457.0 559.0×406.4 559.0×355.6 559.0×323.8	508
600×550 600×500 600×450 600×400 600×350 600×300	24×22 24×20 24×18 24×16 24×14 24×12	610.0×559.0 610.0×508.0 610.0×457.0 610.0×406.4 610.0×355.6 610.0×323.8	508
650×600 650×550 650×500 650×450 650×400 650×350	26×24 26×22 26×20 26×18 26×16 26×14	660.0×610.0 660.0×559.0 660.0×508.0 660.0×457.0 660.0×406.4 660.0×355.6	610
700×650 700×600 700×550 700×500 700×450 700×400 700×350	28×26 28×24 28×22 28×20 28×18 28×16 28×14	711.0×660.0 711.0×610.0 711.0×559.0 711.0×508.0 711.0×457.0 711.0×406.4 711.0×355.6	610
750×700 750×650 750×600 750×550 750×500 750×450 750×400 750×350	30×28 30×26 30×24 30×22 30×20 30×18 30×16 30×14	762.0×711.0 762.0×660.0 762.0×610.0 762.0×559.0 762.0×508.0 762.0×457.0 762.0×406.4 762.0×355.6	610
800×750 800×700 800×650 800×600 800×550 800×500	32×30 32×28 32×26 32×24 32×22 32×20	813.0×762.0 813.0×711.0 813.0×660.0 813.0×610.0 813.0×559.0 813.0×508.0	610
850×800 850×750 850×700 850×650 850×600 850×550	34×32 34×30 34×28 34×26 34×24 34×22	864.0×813.0 864.0×762.0 864.0×711.0 864.0×660.0 864.0×610.0 864.0×559.0	610
900×850 900×800 900×750 900×700 900×650 900×600 900×550	36×34 36×32 36×30 36×28 36×26 36×24 36×22	914.0×864.0 914.0×813.0 914.0×762.0 914.0×711.0 914.0×660.0 914.0×610.0 914.0×559.0	610
950×900 950×850 950×800 950×750 950×700 950×650 950×600	38×36 38×34 38×32 38×30 38×28 38×26 38×24	965.0×914.0 965.0×864.0 965.0×813.0 965.0×762.0 965.0×711.0 965.0×660.0 965.0×610.0	610
1000×950 1000×900 1000×850 1000×800 1000×750 1000×700	40×38 40×36 40×34 40×32 40×30 40×28	1016.0×965.0 1016.0×914.0 1016.0×864.0 1016.0×813.0 1016.0×762.0 1016.0×711.0	610
1050×1000 1050×950 1050×900 1050×850 1050×800 1050×750 1050×700	42×40 42×38 42×36 42×34 42×32 42×30 42×28	1067.0×1016.0 1067.0×965.0 1067.0×914.0 1067.0×864.0 1067.0×813.0 1067.0×762.0 1067.0×711.0	610
1100×1050 1100×1000 1100×950 1100×900 1100×850 1100×800	44×42 44×40 44×38 44×36 44×34 44×32	1118.0×1067.0 1118.0×1016.0 1118.0×965.0 1118.0×914.0 1118.0×864.0 1118.0×813.0	610
1150×1100 1150×1050 1150×1000 1150×950 1150×900 1150×850	46×44 46×42 46×40 46×38 46×36 46×34	1168.0×1118.0 1168.0×1067.0 1168.0×1016.0 1168.0×965.0 1168.0×914.0 1168.0×864.0	711
1200×1150 1200×1100 1200×1050 1200×1000 1200×950 1200×900	48×46 48×44 48×42 48×40 48×38 48×36	1219.0×1168.0 1219.0×1118.0 1219.0×1067.0 1219.0×1016.0 1219.0×965.0 1219.0×914.0	711
1300×1200 1300×1150 1300×1100 1300×1050 1300×1000	52×48 52×46 52×44 52×42 52×40	1321.0×1219.0 1321.0×1168.0 1321.0×1118.0 1321.0×1067.0 1321.0×1016.0	711
1400×1300 1400×1200 1400×1100 1400×1000	56×52 56×48 56×44 56×40	1422.0×1321.0 1422.0×1219.0 1422.0×1118.0 1422.0×1016.0	711
1500×1400 1500×1300 1500×1200 1500×1100	60×56 60×52 60×48 60×44	1524.0×1422.0 1524.0×1321.0 1524.0×1219.0 1524.0×1118.0	711

Note:
1) In addition to the above standards, manufacturing can also follow GB/T 10752, SH 3408, SH 3409, HG/T 21635, HG/T 21631, SY/T 0510, DL/T695, EN 10253 and other standards;
2) Larger sizes of concentric or eccentric reducers are manufactured according to dimensions negotiated between the purchaser and the manufacturer, or supplied according to the manufacturer's dimensions.

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.

Concentric Reducer

Saddle Joint

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Eccentric Reducer

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.

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Butt-welded pipe fittings

Product Description

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