Concentric Reducer/ Eccentric Reducer Manufacturer and Supplier In Wellington, New Zealand

Tim Fittings is a reliable manufacturer and supplier of top-notch Stainless Steel 304L Buttweld Fittings based in Wellington, New Zealand. Renowned for our precision engineering and durable products, we offer a diverse selection of fittings designed to meet the rigorous demands of various industries. Our Stainless Steel 304L Buttweld Fittings are crafted to deliver outstanding performance, exceptional corrosion resistance, and robust strength, ensuring they last in critical applications. With a strong commitment to quality control and customer satisfaction, Tim Fittings has built a solid reputation throughout New Zealand as a dependable partner for stainless steel piping solutions.

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Concentric and eccentric reducers are pipe fittings designed to connect pipes of different diameters. These reducers are commonly made from materials such as stainless steel, carbon steel, alloy steel, duplex steel, super duplex steel, titanium, Inconel, Hastelloy, Monel, copper-nickel, and aluminium, offering high strength, durability, and excellent corrosion resistance. The mechanical properties of these reducers include impressive tensile strength, yield strength, and elongation, allowing them to withstand high pressures and temperatures. Their toughness, hardness, and weldability can vary depending on the material used. Additionally, these reducers are engineered to maintain structural integrity during fluid flow transitions, offering resistance to fatigue while minimizing pressure loss and turbulence.

Concentric Reducer Specification

We provide Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175
Buttweld Concentric Reducer size	Welded Reducer : 1/2″ – 48″
Buttweld Concentric Reducer Dimensions	ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10
Buttweld Concentric Reducer Thickness	SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75
Buttweld Concentric Reducer Connection	Welding
Size Range	½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) Buttweld Reducer
ASME B16.9 Buttweld Concentric Reducer Manufacturing process	Push, Press, Forge, Cast, etc.
Buttweld Concentric Reducer Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
ANSI B16.9 Buttweld Concentric Reducer Origin & Mills	Japanese, Indian, USA, Korean, European, Ukraine, Russian

Eccentric Reducer Specification

We provide Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175
Buttweld Eccentric Reducer size	Welded Reducer : 1/2″ – 48″
Buttweld Eccentric Reducer Dimensions	ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10
Buttweld Eccentric Reducer Thickness	SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75
Buttweld Eccentric Reducer Connection	Welding
Size Range	½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) Buttweld Reducer
ASME B16.9 Buttweld Eccentric Reducer Manufacturing process	Push, Press, Forge, Cast, etc.
Buttweld Eccentric Reducer Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
ANSI B16.9 Buttweld Eccentric Reducer Origin & Mills	Japanese, Indian, USA, Korean, European, Ukraine, Russian

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Largest Concentric Reducer/ Eccentric Reducer Supplier in Wellington, New Zealand

Our Stainless Steel 304L Buttweld Fittings, available from Tim Fittings in Wellington, are made from low-carbon 304L stainless steel, which enhances their weldability while reducing the risk of carbide precipitation. The fittings contain about 18–20% chromium and 8–12% nickel, with a low carbon content (≤0.03%) that boosts their corrosion resistance. They boast impressive mechanical properties, featuring a tensile strength of around 485 MPa and a yield strength of 170 MPa. Even at low temperatures, they maintain good ductility and toughness, making them perfect for both structural and pressure applications where long-term performance is essential.

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

If You Are Looking To Buy High Quality

Why Choose Concentric Reducer/ Eccentric Reducer from Tim Fitttings?

Concentric Reducer/ Eccentric Reducer from Tim Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.

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Customer Support

Largest Inventory

On Time Deliveries

ISO Certified

Concentric and eccentric reducers offer distinct advantages in piping systems. Concentric reducers maintain a consistent centerline, ensuring smooth transitions and minimal turbulence, which is ideal for maintaining flow efficiency in standard applications. Eccentric reducers, on the other hand, are designed with an offset centerline, preventing air pockets and ensuring a level flow in horizontal pipelines. Both types improve fluid flow, reduce pressure loss, and enhance system performance. While concentric reducers are suitable for vertical setups, eccentric reducers are preferred in horizontal installations, ensuring optimal performance and safety across various industries.

Types of Concentric Reducer/ Eccentric Reducer

Concentric Reducer Dimensions Chart

Nominal Diameter		Outside Diameter		End to End
Nominal Diameter		D1*D2		End to End
DN	NPS	Series A	Series B	H
20×15	3/4×1/2	26.9×21.3	25×18	38
20×10	3/4×3/8	26.9×17.3	25×14	38
25×20	1×3/4	33.7×26.9	32×25	51
25×15	1×1/2	33.7×21.3	32×18	51
32×25	1.1/4×1	42.4×33.7	38×32	51
32×20	1.1/4×3/4	42.4×26.9	38×25	51
32×15	1.1/4×1/2	42.4×21.3	38×18	51
40×32	1.1/2×1.1/4	48.3×42.4	45×38	64
40×25	1.1/2×1	48.3×33.7	45×32	64
40×20	1.1/2×3/4	48.3×26.9	45×25	64
40×15	1.1/2×1/2	48.3×21.3	45×18	64
50×40	2×1.1/2	60.3×48.3	57×45	76
50×32	2×1.1/4	60.3×42.4	57×38	76
50×25	2×1	60.3×33.7	57×32	76
50×20	2×3/4	60.3×26.9	57×25	76
65×50	2.1/2×2	73.0×60.3	76×57	89
65×40	2.1/2×1.1/2	73.0×48.3	76×45	89
65×32	2.1/2×1.1/4	73.0×42.4	76×38	89
65×25	2.1/2×1	73.0×33.7	76×32	89
80×65	3×2.1/2	88.9×73.0	89×76	89
80×50	3×2	88.9×60.3	89×57	89
80×40	3×1.1/2	88.9×48.3	89×45	89
80×32	3×1.1/4	88.9×42.4	89×38	89
90×80	3.1/2×3	101.6×88.9	–	102
90×65	3.1/2×2.1/2	101.6×73.0	–	102
90×50	3.1/2×2	101.6×60.3	–	102
90×40	3.1/2×1.1/2	101.6×48.3	–	102
90×32	3.1/2×1.1/4	101.6×42.4	–	102
100×90	4×3.1/2	114.3×101.6	–	102
100×80	4×3	114.3×88.9	108×89	102
100×65	4×2.1/2	114.3×73.0	108×76	102
100×50	4×2	114.3×60.3	108×57	102
100×40	4×1.1/2	114.3×48.3	108×45	102
125×100	5×4	141.3×114.3	133×108	127
125×90	5×3.1/2	141.3×101.6	–	127
125×80	5×3	141.3×88.9	133×89	127
125×65	5×2.1/2	141.3×73.0	133×76	127
125×50	5×2	141.3×60.3	133×57	127
150×125	6×5	168.3×141.3	159×133	140
150×100	6×5	168.3×114.3	159×108	140
150×90	6×3.1/2	168.3×101.6	–	140
150×80	6×3	168.3×88.9	159×89	140
150×65	6×2.1/2	168.3×73.0	159×76	140
200×150	8×6	219.1×168.3	219×159	152
200×125	8×5	219.1×141.3	219×133	152
200×100	8×4	219.1×114.3	219×108	152
200×90	8×3.1/2	219.1×101.6	–	152
250×200	10×8	273.0×219.1	273×219	178
250×150	10×6	273.0×168.3	273×159	178
250×125	10×5	273.0×141.3	273×133	178
250×100	10×4	273.0×114.3	273×108	178
300×250	12×10	323.9×273.1	325×273	203
300×200	12×8	323.9×219.1	325×219	203
300×150	12×6	323.9×168.3	325×159	203
300×125	12×5	323.9×141.3	325×133	203
350×300	14×12	355.6×323.9	377×325	330
350×250	14×10	355.6×273.0	377×273	330
350×200	14×8	355.6×219.1	377×219	330
350×150	14×6	355.6×168.3	377×159	330
400×350	16×14	406.4×355.6	426×377	356
400×300	16×12	406.4×323.9	426×325	356
400×250	16×10	406.4×273.0	426×273	356
400×200	16×8	406.4×219.1	426×219	356
450×400	18×16	457×406.4	478×426	381
450×350	18×14	457×355.6	478×377	381
450×300	18×12	457×323.9	478×325	381
450×250	18×10	457×273.0	478×273	381
500×450	20×18	508×457	529×478	508
500×400	20×16	508×406.4	529×426	508
500×350	20×14	508×355.6	529×377	508
500×300	20×12	508×323.9	529×325	508
550×500	22×20	559×508	–	508
550×450	22×18	559×457	–	508
550×400	22×16	559×406.4	–	508
550×350	22×14	559×355.6	–	508
600×550	24×22	610×559	–	508
600×500	24×20	610×508	630×529	508
600×450	24×18	610×457	630×478	508
600×400	24×22	610×406.4	630×426	508
650×600	26×24	660×610	–	610
650×550	26×22	660×559	–	610
650×500	26×20	660×508	–	610
650×450	26×18	660×457	–	610
700×650	28×26	711×660	–	610
700×600	28×24	711×610	720×630	610
700×550	28×22	711×559	–	610
700×500	28×20	711×508	720×530	610
750×700	30×28	762×711	–	610
750×650	30×26	762×660	–	610
750×600	30×24	762×610	–	610
750×550	30×22	762×559	–	610
800×750	32×30	813×762	–	610
800×700	32×28	813×711	820×720	610
800×650	32×26	813×660	–	610
800×600	32×24	813×610	820×630	610
850×800	34×32	864×813	–	610
850×750	34×30	864×762	–	610
850×700	34×28	864×711	–	610
850×650	34×26	864×660	–	610
900×850	36×34	914×864	–	610
900×800	36×32	914×813	920×820	610
900×750	36×30	914×762	–	610
900×700	36×28	914×711	920×720	610
950×900	38×36	965×914	–	610
950×850	38×34	965×864	–	610
950×800	38×32	965×813	–	610
950×750	38×30	965×762	–	610
1000×950	40×38	1016×965	–	610
1000×900	40×36	1016×914	1020×920	610
1000×850	40×34	1016×864	–	610
1000×800	40×32	1016×813	1020×820	610
1050×1000	42×40	1067×1016	–	610
1050×950	42×38	1067×965	–	610
1050×900	42×36	1067×914	–	610
1050×850	42×34	1067×864	–	610
1100×1050	44×42	1118×1067	–	610
1100×1000	44×40	1118×1016	1120×1020	610
1100×950	44×38	1118×965	–	610
1100×900	44×36	1118×914	1220×920	610
1150×1100	46×44	1168×1118	–	711
1150×1050	46×42	1168×1067	–	711
1150×1000	46×40	1168×1016	–	711
1150×950	46×38	1168×965	–	711
1200×1150	48×46	1220×1168	–	711
1200×1100	48×44	1220×1118	1220×1120	711
1200×1050	48×42	1220×1067	–	711
1200×1000	48×40	1220×1016	1220×1020	711

Eccentric Reducer Dimensions Chart

Nominal Diameter		Outside Diameter		End to End
Nominal Diameter		D1*D2		End to End
DN	NPS	Series A	Series B	H
20×15	3/4×1/2	26.9×21.3	25×18	38
20×10	3/4×3/8	26.9×17.3	25×14	38
25×20	1×3/4	33.7×26.9	32×25	51
25×15	1×1/2	33.7×21.3	32×18	51
32×25	1.1/4×1	42.4×33.7	38×32	51
32×20	1.1/4×3/4	42.4×26.9	38×25	51
32×15	1.1/4×1/2	42.4×21.3	38×18	51
40×32	1.1/2×1.1/4	48.3×42.4	45×38	64
40×25	1.1/2×1	48.3×33.7	45×32	64
40×20	1.1/2×3/4	48.3×26.9	45×25	64
40×15	1.1/2×1/2	48.3×21.3	45×18	64
50×40	2×1.1/2	60.3×48.3	57×45	76
50×32	2×1.1/4	60.3×42.4	57×38	76
50×25	2×1	60.3×33.7	57×32	76
50×20	2×3/4	60.3×26.9	57×25	76
65×50	2.1/2×2	73.0×60.3	76×57	89
65×40	2.1/2×1.1/2	73.0×48.3	76×45	89
65×32	2.1/2×1.1/4	73.0×42.4	76×38	89
65×25	2.1/2×1	73.0×33.7	76×32	89
80×65	3×2.1/2	88.9×73.0	89×76	89
80×50	3×2	88.9×60.3	89×57	89
80×40	3×1.1/2	88.9×48.3	89×45	89
80×32	3×1.1/4	88.9×42.4	89×38	89
90×80	3.1/2×3	101.6×88.9	–	102
90×65	3.1/2×2.1/2	101.6×73.0	–	102
90×50	3.1/2×2	101.6×60.3	–	102
90×40	3.1/2×1.1/2	101.6×48.3	–	102
90×32	3.1/2×1.1/4	101.6×42.4	–	102
100×90	4×3.1/2	114.3×101.6	–	102
100×80	4×3	114.3×88.9	108×89	102
100×65	4×2.1/2	114.3×73.0	108×76	102
100×50	4×2	114.3×60.3	108×57	102
100×40	4×1.1/2	114.3×48.3	108×45	102
125×100	5×4	141.3×114.3	133×108	127
125×90	5×3.1/2	141.3×101.6	–	127
125×80	5×3	141.3×88.9	133×89	127
125×65	5×2.1/2	141.3×73.0	133×76	127
125×50	5×2	141.3×60.3	133×57	127
150×125	6×5	168.3×141.3	159×133	140
150×100	6×5	168.3×114.3	159×108	140
150×90	6×3.1/2	168.3×101.6	–	140
150×80	6×3	168.3×88.9	159×89	140
150×65	6×2.1/2	168.3×73.0	159×76	140
200×150	8×6	219.1×168.3	219×159	152
200×125	8×5	219.1×141.3	219×133	152
200×100	8×4	219.1×114.3	219×108	152
200×90	8×3.1/2	219.1×101.6	–	152
250×200	10×8	273.0×219.1	273×219	178
250×150	10×6	273.0×168.3	273×159	178
250×125	10×5	273.0×141.3	273×133	178
250×100	10×4	273.0×114.3	273×108	178
300×250	12×10	323.9×273.1	325×273	203
300×200	12×8	323.9×219.1	325×219	203
300×150	12×6	323.9×168.3	325×159	203
300×125	12×5	323.9×141.3	325×133	203
350×300	14×12	355.6×323.9	377×325	330
350×250	14×10	355.6×273.0	377×273	330
350×200	14×8	355.6×219.1	377×219	330
350×150	14×6	355.6×168.3	377×159	330
400×350	16×14	406.4×355.6	426×377	356
400×300	16×12	406.4×323.9	426×325	356
400×250	16×10	406.4×273.0	426×273	356
400×200	16×8	406.4×219.1	426×219	356
450×400	18×16	457×406.4	478×426	381
450×350	18×14	457×355.6	478×377	381
450×300	18×12	457×323.9	478×325	381
450×250	18×10	457×273.0	478×273	381
500×450	20×18	508×457	529×478	508
500×400	20×16	508×406.4	529×426	508
500×350	20×14	508×355.6	529×377	508
500×300	20×12	508×323.9	529×325	508
550×500	22×20	559×508	–	508
550×450	22×18	559×457	–	508
550×400	22×16	559×406.4	–	508
550×350	22×14	559×355.6	–	508
600×550	24×22	610×559	–	508
600×500	24×20	610×508	630×529	508
600×450	24×18	610×457	630×478	508
600×400	24×22	610×406.4	630×426	508
650×600	26×24	660×610	–	610
650×550	26×22	660×559	–	610
650×500	26×20	660×508	–	610
650×450	26×18	660×457	–	610
700×650	28×26	711×660	–	610
700×600	28×24	711×610	720×630	610
700×550	28×22	711×559	–	610
700×500	28×20	711×508	720×530	610
750×700	30×28	762×711	–	610
750×650	30×26	762×660	–	610
750×600	30×24	762×610	–	610
750×550	30×22	762×559	–	610
800×750	32×30	813×762	–	610
800×700	32×28	813×711	820×720	610
800×650	32×26	813×660	–	610
800×600	32×24	813×610	820×630	610
850×800	34×32	864×813	–	610
850×750	34×30	864×762	–	610
850×700	34×28	864×711	–	610
850×650	34×26	864×660	–	610
900×850	36×34	914×864	–	610
900×800	36×32	914×813	920×820	610
900×750	36×30	914×762	–	610
900×700	36×28	914×711	920×720	610
950×900	38×36	965×914	–	610
950×850	38×34	965×864	–	610
950×800	38×32	965×813	–	610
950×750	38×30	965×762	–	610
1000×950	40×38	1016×965	–	610
1000×900	40×36	1016×914	1020×920	610
1000×850	40×34	1016×864	–	610
1000×800	40×32	1016×813	1020×820	610
1050×1000	42×40	1067×1016	–	610
1050×950	42×38	1067×965	–	610
1050×900	42×36	1067×914	–	610
1050×850	42×34	1067×864	–	610
1100×1050	44×42	1118×1067	–	610
1100×1000	44×40	1118×1016	1120×1020	610
1100×950	44×38	1118×965	–	610
1100×900	44×36	1118×914	1220×920	610
1150×1100	46×44	1168×1118	–	711
1150×1050	46×42	1168×1067	–	711
1150×1000	46×40	1168×1016	–	711
1150×950	46×38	1168×965	–	711
1200×1150	48×46	1220×1168	–	711
1200×1100	48×44	1220×1118	1220×1120	711
1200×1050	48×42	1220×1067	–	711
1200×1000	48×40	1220×1016	1220×1020	711

Are Custom Sizes Available for Concentric Reducer/ Eccentric Reducer?

Yes, custom sizes for Concentric Reducer/ Eccentric Reducer are available at Tim Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@timfittings.co.nz.

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Application Industry of Concentric Reducer/ Eccentric Reducer

Tim Fittings’ Stainless Steel 304L Buttweld Fittings are widely utilized across various industries in Wellington and beyond. Their excellent corrosion resistance and weldability make them ideal for chemical processing, food and beverage manufacturing, pharmaceuticals, petrochemical plants, and marine environments. These fittings are perfect for systems that require consistent flow, structural integrity, and resilience against harsh conditions. Common applications include pipelines, pressure vessels, heat exchangers, and water treatment facilities. Their hygienic properties and low maintenance needs further enhance their appeal in demanding environments.