Riduttore concentrico in acciaio inox

A stainless steel concentric reducer is a type of pipe fitting that is used to connect pipes of different sizes in a piping system. It is a conical shaped fitting that narrows down the diameter of a pipe while maintaining the centerline of the pipe. The reducer has a large end and a smaller end, and it is used to join pipes of different sizes by welding or threading. Stainless steel concentric reducers are commonly used in industrial piping systems where it is necessary to reduce the flow of fluid or gas. They are made of high-quality stainless steel, which makes them resistant to corrosion and suitable for use in high-pressure and high-temperature applications. The concentric design of the reducer ensures that there is no turbulence in the fluid flow, which helps to maintain the overall efficiency of the piping system.

 Buttweld Concentric Reducer Specifications

Dimensioni	Tee di riduzione del tubo senza saldatura (1/2″～24″), Tee di riduzione del tubo ERW/saldato/fabbricato (1/2″～48″)
Standard	ANSI – B 16.9, ASTM A403 – ASME SA403 – ‘Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings’, API 590-605, ASME B16.9 – ‘Factory-Made Wrought Buttwelding Fittings”, ASME B16.25 – ‘Buttwelding Ends’, ASME B16.28 – ‘Wrought Steel Buttwelding Short Radius Elbows and Returns’, MSS SP-43 – ‘Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Application’
Dimensioni	ANSI B16.9, ANSI B16.28, MSS-SP-43 tipo A, MSS-SP-43 tipo B, JIS B2312, JIS B2313
Spessore	Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS ecc.
Raggio di curvatura	R=1D - 10D, 15D, 20D
Da	Concentric Reducer, Pipe Reducer, Pipe Concentric Reducers, Fitting Concentric Riduttori.
Gradi&I materiali	304/L/H/LN, 316/L/H/LN/Ti, 321/H, 317/L/LN, 347/H, 310S/H, N08904 (904L), S31803, S32205, S32750, S32760, N02200, N02201, N04400, N06600, N06690, N06625, N06985 (G3), N08028, N08800, N08810, N08811, N08825Superficie,Monel, Nichel, Inconel, Hastalloy, Titanio, Tantalio, Acciaio inossidabile, Acciaio legato, Acciaio al carbonio, Cupro-Nichel 90/10 e 70/30, Acciaio inossidabile ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, DIN 1.4306, DIN 1.4306, DIN 1.4306.4301, DIN1.4306, DIN 1.4401, DIN 1.4404
Tipo	Saldatura di testa (BW) / Senza saldatura / Saldato / ERW / Fabbricato
Rivestimento / Trattamento di superficie	Vernice antiruggine, vernice nera ad olio, giallo trasparente, zincatura, zincatura a freddo e a caldo

Buttweld Concentric Reducer Manufacturing Standards

Standard ASME	ASME/ANSI B16.9, ASME/ANSI B16.28, MSS-SP-43
Standard DIN	DIN28011, DIN2617, DIN2616, DIN2615, DIN2605
Standard EN	EN10253-2, EN10253-1
ASME B16.25	Estremità di saldatura
ASME B16.9	Raccordi in ferro battuto realizzati in fabbrica Saldatura a caldo
ASME B16.28	Riduzione eccentrica in acciaio battuto
ASTM A403 - ASME SA403	Specifica standard per i raccordi per tubazioni in acciaio inossidabile austenitico battuto
MSS SP-43	Raccordi saldati a testa in giù per applicazioni a bassa pressione e resistenti alla corrosione

BUTTWELD CONCENTRIC REDUCER – MATERIALS & GRADES

Stainless Steel Concentric Reducers – Buttweld	ASTM A403 WP316/316L, ASTM A403 SA / A 774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404
Duplex & Super Duplex Steel Concentric Reducers – Buttweld	ASTM A 815, ASME SA 815 UNS NO S31803, S32205. UNS S32750, S32950. N. Werkstoff 1.4462
Carbon Steel Concentric Reducers – Buttweld	ASTM A234, ASME SA234 WPB, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 E WPHY 70.
Low Temperature Carbon Steel Concentric Reducers – Buttweld	ASTM A420 WPL3, A420 WPL6
Alloy Steel Concentric Reducers – Buttweld	ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91
Nickel Alloy Concentric Reducers – Buttweld	ASTM B336, ASME SB336, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (n. UNS N06625), Inconel 601 (n. UNS N06601), Hastelloy C 276 (n. UNS N10276), Alloy 20 (n. UNS N08020), Titanio (grado I e II), Cupro-Nickel 70/30, CuNi10Fe1Mn, CuNi30Mn1Fe.

Buttweld Concentric Reducer Dimensions

Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) should be nominative by client. Outlet dimension (M) for NPS twenty-six and bigger is usually recommended however not needed.

Nominal Pipe Size (NPS)	Outside Diameter(OD)   at Bevel		End-to- End, H
	Large End	Small  End
3/4×1/2	26.7	21.3	38
3/4×3/8	26.7	17.3	38
1×3/4	33.4	26.7	51
1×1/2	33.4	21.3
1-1/4×1	42.2	33.4	51
1-1/4×3/4	42.2	26.7
1-1/4×1/2	42.2	21.3
1-1/2×1-1/4	48.3	42.2	64
1-1/2×1	48.3	33.4
1-1/2×3/4	48.3	26.7
1-1/2×1/2	48.3	21.3
2×1-1/2	60.3	48.3	76
2×1-1/4	60.3	42.2
2×1	60.3	33.4
2×3/4	60.3	26.7
2-1/2×2	73	60.3	89
2-1/2×1-1/2	73	48.3
2-1/2×1-1/4	73	42.2
2-1/2×1	73	33.4
3×2-1/2	88.9	73	89
3×2	88.9	60.3
3×1-1/2	88.9	48.3
3×1-1/4	88.9	42.2
3-1/2×3	101.6	88.9	102
3-1/2×2-1/2	101.6	73
3-1/2×2	101.6	60.3
3-1/2×1-1/2	101.6	48.3
3-1/2×1-1/4	101.6	42.2
4×3-1/2	114.3	101.6	102
4×3	114.3	88.9
4×2-1/2	114.3	73
4×2	114.3	60.3
4×1-1/2	114.3	48.3
5×4	141.3	114.3	127
5×3-1/2	141.3	101.6
5×3	141.3	88.9
5×2-1/2	141.3	73
5×2	141.3	60.3
6×5	168.3	141.3	140
6×4	168.3	114.3
6×3-1/2	168.3	101.6
6×3	168.3	88.9
6×2-1/2	168.3	73
8×6	219.1	168.3	152
8×5	219.1	141.3
8×4	219.1	114.3
8×3-1/2	219.1	101.6
10×8	273	219.1	178
10×6	273	168.3
10×5	273	141.3
10×4	273	114.3
12×10	323.8	273	203
12×8	323.8	219.1
12×6	323.8	168.3
12×5	323.8	141.3
14×12	355.6	323	330
14×10	355.6	273
14×8	355.6	219.1
14×6	355.6	168.3
16×14	406.4	355.6	356
16×12	406.4	323.8
16×10	406.4	273
16×8	406.4	219.1
18×16	457.2	406.4	381
18×14	457.2	355.6
18×12	457.2	323.8
18×10	457.2	273
20×18	508	457.2	508
20×16	508	406.4
20×14	508	355.6
20×12	508	323.8
22×20	558.8	508	508
22×18	558.8	457.2
22×16	558.8	406.4
22×14	558.8	355.6
24×22	609.6	558.8	508
24×20	609.6	508
24×18	609.6	457.2
24×16	609.6	406.4
26×24	660	610	610
26×22	660	559
26×20	660	508
26×18	660	457
28×26	711	660	610
28×24	711	610
28×20	711	508
28×18	711	457
30×28	762	711	610
30×26	762	660
30×24	762	610
30×20	762	508
32×30	813	762	610
32×28	813	711
32×26	813	660
32×24	813	610
34×32	864	813	610
34×30	864	762
34×26	864	660
342×4	864	610
36×34	914	864	610
36×32	914	713
36×30	914	762
36×26	914	660
36×24	914	610
38×36	965	914	610
38×34	965	864
38×32	965	813
38×30	965	762
38×28	965	711
38×26	965	660
40×38	965	965	610
40×36	1016	914
40×34	1016	864
40×32	1016	813
40×30	1016	762
42×40	1016	1016	610
42×38	1067	965
42×36	1067	914
42×34	1067	864
42×32	1067	813
42×30	1067	762
44×42	1118	1067	610
44×40	1118	1016
44×38	1118	965
44×36	1118	914
46×44	1168	1118	711
46×42	1168	1067
46×40	1168	1016
46×38	1168	965
48×46	1219	1168	711
48×44	1219	1118
48×42	1219	1067
48×40	1219	1016

Concentric Reducer Dimensional Tolerance

Dimensione nominale del tubo	1/2 a 2,1/2	Da 3 a 3,1/2	4	Da 5 a 8
Diametro esterno a Smusso (D)	+ 1.6 - 0.8	1.6	1.6	+ 2.4 - 1.6
Diametro interno all'estremità	0.8	1.6	1.6	1.6
Lunghezza complessiva (H)	2	2	2	2
Dimensione nominale del tubo	Da 10 a 18	Da 20 a 24	Dal 26 al 30	Da 32 a 48
Diametro esterno a Smusso (D)	+ 4 - 3.2	+ 6.4 - 4.8	+ 6.4 - 4.8	+ 6.4 - 4.8
Diametro interno all'estremità	3.2	4.8	+ 6.4 - 4.8	+ 6.4 - 4.8
Lunghezza complessiva (H)	2	2	5	5
Spessore della parete (t)	Non meno di 87,5% dello spessore nominale della parete

Butt Welding Concentric Reducer Weight Calculator

Il peso approssimativo di un riduttore eccentrico con saldatura testa a testa è calcolato in base alla lunghezza della testata, alla dimensione della testata, alla dimensione del ramo, alla lunghezza del ramo, allo spessore della parete della testata e allo spessore della parete del ramo. Si noti che il peso effettivo di un tee di un particolare produttore può variare a seconda della metodologia di produzione. Gli standard dimensionali come ASME B16.9 non forniscono i pesi dei raccordi con attacco di testa.

Il peso di un riduttore eccentrico con saldatura testa a testa secondo ASME B16.9 è calcolato secondo la seguente formula:

0,02466 * S * H / 1000

W = Peso in Kg

OD1 = Diametro esterno di grandi dimensioni (mm)

OD2 = Diametro esterno della taglia più piccola (mm)

t = spessore della parete (mm)

H = Dimensione da estremità a estremità (mm)

Tabella dei pesi dei riduttori eccentrici ASME B16.9 Buttweld in KG

NPS	LBS	KG
4-3	3.38	1.53
4-2.1/2	3.25	1.47
4-2	3	1.36
3.1/2-2.1/2	2.88	1.31
3.1/2-2	2.75	1.25
3.1/2-1.1/2	2.5	1.13
3.1/2-1.1/4	2.4	1.09
4-3.1/2	3.5	1.59
4-1.1/2	2.88	1.31
5-4	6	2.72
5-3.1/2	5.75	2.61
5-3	5.5	2.49
5-2.1/2	5.25	2.38
5-2	5	2.27
6-5	8.5	3.86
6-4	8.25	3.74
6-3.1/2	8.25	3.74
6-3	8	3.63
6-2.1/2	7.25	3.29
8-6	13.2	5.99
8-5	12	5.44
8-4	11	4.99
8-3.1/2	11	4.99
10-8	22	9.98
10-6	21.5	9.75
10-5	21	9.53
10-4	20	9.07
12-10	34	15.42
12-8	32	14.51
12-6	31	14.06
12-5	30	13.61
14-12	60	27.22
14-10	59.2	26.85
14-8	58.5	26.54
14-6	58	26.31
16-14	71	32.21
16-12	70	31.75
16-10	69.5	31.52
16-8	68.5	31.07
16-6	–	–
18-16	85	38.56
18-14	84	38.1
3/4-1/2	0.17	0.08
3/4-3/8	0.15	0.07
1-3/4	0.4	0.18
1-1/2	0.4	0.18
1.1/4-1	0.5	0.23
1.1/4-3/4	0.4	0.18
1.1/4-1/2	0.4	0.18
1.1/2-1.1/4	0.7	0.32
1.1/2-1	0.62	0.28
1.1/2-3/4	0.54	0.24
1.1/2-1/2	0.5	0.23
2-1.1/2	0.9	0.41
2-1.1/4	0.84	0.38
2-1	0.76	0.34
2-3/4	0.7	0.32
2.1/2-2	1.5	0.68
2.1/2-1.1/2	1.38	0.63
2.1/2-1.1/4	1.25	0.57
2.1/2-1	1.25	0.57
3-2.1/2	2	0.91
3-2	1.8	0.82
3-1.1/2	1.7	0.77
3-1.1/4	1.6	0.73
3.1/2-3	3.15	1.43
18-12	83	37.65
18-10	82	37.19
18-8	–	–
20-18	125	56.7
20-16	124	56.25
20-14	122	55.34
20-12	120	54.43
20-10	–	–
20-8	–	–
22-20	142	64.41
22-18	138	62.6
22-16	131	59.42
22-14	123	55.79
22-12	–	–
22-10	–	–
24-22	–	–
24-20	150	68.04
24-18	148	67.13
24-16	145	65.77
24-14	–	–
30-26	232	105.23
30-24	224	101.6
30-22	220	99.79
30-20	220	99.79
24-12	–	–
24-10	–	–
26-24	207	93.89
26-22	200	90.72
26-20	190	86.18
26-18	182	82.55
26-16	–	–
26-14	–	–
26-12	–	–
28-26	224	101.6
28-24	216	97.98
28-22	210	95.25
28-20	199	90.26
30-28	241	109.32

Concentric Reducer Angularity Tolerance

ND	Angolo massimo di disattivazione	Max fuori dall'aereo
	Q	P
1/2 a 4	1	2
5 a 8	2	4
10 a 12	3	5
14 a 16	3	7
18 a 24	4	10
26 a 30	5	10
32 a 42	5	13
44 a 48	5	20

What is the use of Buttweld Concentric Reducer?

• They are helpful in services wherever cavitation is present.
• When transporting between flanges or pipes of various ratings and wear protection is important, concentrical reducers are ideal.
• Concentric reducers are utilized in discharge of the pump.
• Concentric reducers can transition graciously between the piping and also the pump.
• The concentrical reducers facilitate in transporting slurries or abrasive liquids.

Available Types of ASME B16.9 Buttweld Concentric Reducer

Buttweld Concentric Reducer	ASME B16.28 Butt weld Concentric Reducer
Hastelloy Concentric Reducer	ASME B16.9 Buttweld Concentric Pipe Reducer
High Nickel Alloy Concentric Reducer	Inconel Butt weld Concentric Reducer
ANSI B16.9 Buttweld Concentric Reducer	Titanium Buttweld Concentric Reducer
Raccordi per tubi riduttori in acciaio	High Quality Concentric Reducer
Riduttore concentrico in acciaio inox	Seamless Butt weld Concentric Reducer
Welded Butt weld Concentric Reducer	SS Concentric Reducers
Carbon Steel Concentric Reducer	Riduttori per tubi a saldare di testa
Copper Nickel Concentric Reducer	Duplex Steel Buttweld Concentric Reducer
Super Duplex Steel Buttweld Concentric Reducer	ASTM A403 Stainless Steel Concentric Reducer

Buttweld Concentric Reducer Application

ASME B16.9 Concentric Reducer are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Buttweld Reducer through a worldwide network of stock-keeping branches. These Concentric Pipe Reducer is use in various industries like :

• Stainless Steel Buttweld Concentric Reducer uses in Oil and Gas Pipeline
• Butt weld Concentric Reducers uses in Chemical Industry
• Alloy Steel Concentric Reducer uses in Plumbing
• Buttweld Concentric Pipe Reducer uses in Heating
• Buttweld Concentric Reducer Fittings uses in Water Supply Systems
• ANSI B16.9 Buttweld Concentric Reducer uses in Power Plant
• Buttweld Concentric Reducer Fitting uses in Paper & Pulp Industry
• Concentric Reducer uses in General Purpose Applications
• Buttweld Concentric Reducer uses in Fabrication Industry
• Concentric Reducer uses in Food Processing Industry
• Buttweld Concentric Reducer uses in Structural Pipe