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Eccentric Reducer & Concentric Reducer Manufacturers in India

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Eccentric Reducer Manufacturers & Concentric Reducer Manufacturer, Suppliers in India, Mumbai, UAE, South Africa

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Eccentric Reducer & Concentric Reducer Manufacturers in India

Fitwel Industries LLP is one of the pioneer manufacturers, supplier & exporter of high-quality Pipe Reducer in Mumbai, India. We are involved in offering a higher quality of Reducer Pipe Fittings that is manufactured using superior-grade of raw material in compliance by means of industry norms. Buttweld Pipe Reducer is available in concentric reducer manufacturer india and eccentric reducer manufacturers india types.

The function of both types of reducer is to reduce the line from a larger to a smaller pipe size; this obviously results in an increased flow pressure. A reducer allows for a change in pipe size to meet hydraulic flow requirements of the system, or to adapt to existing piping of a different size. One of the most common methods for manufacturing Concentric Reducers & eccentric reducer is using an outer die. There are two main types of reducers – concentric reducers and eccentric reducers. An Eccentric Reducer is used in piping systems between pipes of different sizes. It has an edge that is parallel to the connecting pipe. Whereas, a Concentric Reducer is used to join pipe sections on the same axis. The fittings offered by us are manufactured using optimum quality material and sophisticated machines in accordance with international standards. Further, offered collection can be made-to-order as per precise requirements of our customers.

What is Pipe Reducer?

A reducer is a component in a piping system that changes the pipe size from a larger to a smaller bore.
A reducer allows for a change in pipe size to meet flow requirements or to adapt to existing piping. The length of the reduction is usually equal to the average of the larger and smaller pipe diameters. Reducers are typically concentric, but eccentric reducers can be used to maintain the same top-of-pipe or bottom-of-pipe level.

Types Of Pipe Reducer

There are two main types of reducers – (i) Concentric Reducer And (ii) Eccentric Reducer

Concentric Reducer

In Concentric Reducer Manufacturer India the reduction of the pipe size is achieved by decreasing the diameter of the fitting at a constant rate over a specified length, maintaining symmetry around the fitting. Concentric Reducers are used to join pipe or tube sections of different diameters on the same axis. They provide an in-line conical transition between pressurized pipes of differing diameters. Thus, concentric reducers connect pipes of unequal size but have a common centerline. The same fitting can be used in reverse as an concentric expander.

Eccentric Reducer

In Eccentric Reducer Manufacturers India the reduction of the pipe size is achieved by decreasing the diameter of the fitting at a constant rate over a specified length, maintaining one side of the fitting horizontally. An eccentric pipe reducer fitting is manufactured with the smaller outlet off center to the larger end, which allows it to align with only one side of the inlet. The same fitting can be used in reverse as an eccentric expander.

An eccentric reducer is a fitting used in piping systems between two pipes of different diameters. Unlike a concentric reducer, which resembles a cone, eccentric reducers have an edge that is parallel to the connecting pipe. This parallel edge results in the two pipes having offset center lines.
Concentric reducers are used where the pipework is vertically installed and at the discharge side of pumps. Eccentric reducers are more often used when the pipework lays on a pipe rack. Because of the flat side, aligning and securely mounting the pipes to the rack is easier.

Uses of Concentric and Eccentric Reducers In India

In horizontal liquid piping, eccentric reducer must be installed with flat side up so that it can prevent trapping air in the piping system. As an exception, same is flat side down in piperack where same Bottom of Pipe (BOP) has to be maintained. Other exception is with control valves. A eccentric reducer with flat side down will give a more constant flow through the control valve rather than a concentric reducer or eccentric reducer with flat side up, which will give your more flow disruption and will cause problems with your control valve.

In horizontal gas / vapor / steam piping, eccentric reducer must be installed with flat side down which allows condensed water or fluid to drain at low points.

Eccentric reducers are used at the suction side of pumps to ensure air does not accumulate in the pipe. The gradual accumulation of air in a concentric reducer could result in a large bubble that could eventually cause the pump to stall or cause cavitation when drawn into the pump.
Reducers in vertical lines are generally concentric unless the layout dictates otherwise.

Dimensions Tolerances Of ASME B16.9 Concentric & Eccentric Buttweld Reducers

Concentric & Eccentric Buttweld Reducers
NPS O.D.
D
O.D.
D1
Len
H
3/4-1/2 26.7 21.3 38
1-1/2 33.4 21.3 51
1-3/4 33.4 26.7 51
1¼-1/2 42.2 21.3 51
1¼-3/4 42.2 26.7 51
1¼-1 42.2 33.4 51
1½-1/2 48.3 21.3 64
1½-3/4 48.3 26.7 64
1½-1 48.3 33.4 64
1½-1¼ 48.3 42.2 64
2-3/4 60.3 26.7 76
2-1 60.3 33.4 76
2-1¼ 60.3 42.2 76
2-1½ 60.3 48.3 76

ASME B16.9 Concentric & Eccentric Buttweld Reducers Dimensions

Nominal Pipe Size 1/2 to 2½ 3 to 3½ 4 5 to 8
Outside Diameter
at Bevel (D)
+ 1.6
- 0.8
1.6 1.6 + 2.4
- 1.6
Inside Diameter at End 0.8 1.6 1.6 1.6
Overall Length (H) 2 2 2 2
Nominal Pipe Size 10 to 18 20 to 24 26 to 30 32 to 48
Outside Diameter
at Bevel (D)
+ 4
- 3.2
+ 6.4
- 4.8
+ 6.4
- 4.8
+ 6.4
- 4.8
Inside Diameter at End 3.2 4.8 + 6.4
- 4.8
+ 6.4
- 4.8
Overall Length (H) 2 2 5 5
Wall Thickness (t) Not less than 87.5% of Nominal Wall Thickness

Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.


ASME B16.9 Buttweld Reducer Specification :

Size : Seamless Reducer ( 1/2″~24″), ERW / Welded / Fabricated Reducer (1/2″~48″)

Standards : ASME / ANSI - B 16.9, ASTM A403 - ASME SA403, ASME B16.9, ASME B16.25, ASME B16.28, MSS SP-43.

Thickness : Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc.

Type : Seamless / ERW / Welded / Fabricated

Form : Concentric Reducers, Eccentric Reducers


ASME B16.9 Buttweld Reducer Material & Grades :

Stainless Steel Buttweld Reducer : 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 Buttweld Reducer : ASTM A 815, ASME SA 815 UNS NO S31803, S32205. UNS S32750, S32950. Werkstoff No. 1.4462

Carbon Steel Buttweld Reducer: ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.

Alloy Steel Buttweld Reducer : ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

Nickel Alloy Buttweld Reducer : ASTM / ASME SB 336 UNS 2200 ( NICKEL 200 ), UNS 2201 (NICKEL 201 ), UNS 4400 (MONEL 400 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 ( HASTELLOY C 276 )


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Brand: Fitwel Industries LLP

Manufacturer: Fitwel Industries LLP

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