Short Description

Model No.: ASME-B16.9-ASTM-B363-Titanium-Concentric-Reducer

China Titanium Concentric Reducer Manufacturer www.steeljrv.com supplies ASTM B363 Titanium Concentric Reducer.

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Key Specifications / Features

Type: Titanium Concentric Reducer
Material: Grade 1 (UNS R50250), Grade 2 (UNS R50400), Grade 5 (UNS R56400), Grade 7 (UNS R52400),Grade 9 (UNS R56320), Grade 12 (UNS R53400),etc
Size: 4″ – 1-1/2″ (DN100-DN40)
Wall Thickness: SCH5S-SCHXXS
Ends: Plain Ends (PE); Threaded Ends (TE); Bevelled Ends (BW); Grooved Mechanical Joints or Grooved Ends
Standard: ASTM B363

Titanium reducer is a titanium hot-pressed or forged forming head, and its connection form is to directly butt weld the head and the titanium pipe. Titanium reducers generally devided into concentric reducer and eccentric reducer, and the materials are pure titanium and titanium alloys.
Titanium reducer is formed by bending, extruding, pushing, molding, mechanical processing and other cold or hot processing methods. It has the characteristics of corrosion resistance and high pressure resistance.
Titanium reducer is widely used in power, oil and gas, petrochemical, chemical, marine, heating, paper, metallurgy and other industries.

Chemical Composition % of Titanium Concentric Reducer

STANDARD CHEMICAL COMPOSITION (weight %, ma√ or range)
Grade UNS N C H Fe O Al V Pd Mo Ni
No
GR 1 R50250 0.03 0.08 0.015 0.2 0.18
GR 2 R50400 0.03 0.08 0.015 0.3 0.25
GR 3 R50550 0.05 0.08 0.015 0.3 0.35
GR 4 R50700 0.05 0.08 0.015 0.5 0.4
GR 5 R56400 0.05 0.08 0.015 0.4 0.2 5.5-6.75 3.5-4.5
GR 7 R52400 0.03 0.08 0.015 0.3 0.25 0.12-0.25
GR 9 R56320 0.03 0.08 0.015 0.25 0.15 2.5-3.5  2.0-3.0 
GR 12 R53400 0.03 0.08 0.015 0.3 0.25 0.2-0.4 0.6-0.9
GR 23 R56401 0.03 0.08 0.0125 0.25 0.13 5.5-6.5 3.5-4.5

Mechanical Properties of Titanium Concentric Reducer

STANDARD CHEMICAL COMPOSITION (weight %, ma√ or range) MECHANICAL PROPERTIES (min)
Grade UNS Tensile Yield El. Red.
No Mpa Mpa % %
GR 1 R50250 240 138 24 30
GR 2 R50400 345 275 20 30
GR 3 R50550 450 380 18 30
GR 4 R50700 550 483 15 25
GR 5 R56400 895 828 10 25
GR 7 R52400 345 275 20 30
GR 9 R56320 620 483 15 25
GR 12 R53400 483 345 18 25
GR 23 R56401 828 759 10 15

China Titanium Concentric Reducer Manufacturer www.steeljrv.com supplies ASTM B363 Titanium Concentric Reducer.

Types of pipe reducers

Concentric Reducer

Concentric Reducers are used to join pipe or tube sections on the same axis. They provide an in-line conical transition between pressurized pipes of differing diameters. A pipe reducer can be a single diameter change or a multiple diameter change. The pipes cannot recognize what the outside configuration of the pipe reducer looks like. The pipe flow is affected by the inside diameter conical transition configuration which can be axially moved and externally reconfigured to provide for more economical reducer fittings. Thus, concentric reducers connect pipes of unequal size but have a common centerline. In other words, it is a type of pipe fitting with different size ends to join pipes of different diameter that joins pipe sections on the same axis.

concentric reducer1 - ASME B16.9 ASTM B363 Titanium Concentric Reducer concentric reducer2 - ASME B16.9 ASTM B363 Titanium Concentric Reducer
Seamless concentric reducer Butt-welded concentric reducer
concentric reducer3 - ASME B16.9 ASTM B363 Titanium Concentric Reducer concentric reducer4 - ASME B16.9 ASTM B363 Titanium Concentric Reducer
High pressure concentric reducer Low pressure concentric reducer

As shown in Fig. 1. In this type of reducers area reduction is concentric and center line of the pipe on bigger end and smaller end  remains same.  These styles are normally used for vertical lines.

Concentric reducers1 - ASME B16.9 ASTM B363 Titanium Concentric Reducer

Fig.1: Concentric Reducers

Concentric reducers are designed with the small and large diameters on opposite ends and joined by a cone shaped transition section. They are available in both seamless and welded construction.
How to take measurements of concentric reducers?
Get the measurements of outer diameter (OD) and inner diameter (ID) , height (H), and the total dimension (T1, T2).
Uses of concentric reducers:

Some uses of concentric reducers are as follows:

Concentric reducers will transition gracefully between the piping and the pump.
The concentric reducers help in transporting slurries or abrasive liquids.
They are useful in services where cavitation is present.
When transporting between flanges or pipes of different ratings and wear protection is necessary, concentric reducers are ideal.
Concentric reducers are used in discharge of the pump.

Eccentric Reducer

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 reducer must be installed with straight side up so that it can prevent trapping air at the pump suction. The eccentric pipe reducers allow simple connection of different sized pipes.

eccentric reducer1 - ASME B16.9 ASTM B363 Titanium Concentric Reducer

Large size eccentric reducer

eccentric reducer2 - ASME B16.9 ASTM B363 Titanium Concentric Reducer

Butt-welded Eccentrice reducer

eccentric reducer3 - ASME B16.9 ASTM B363 Titanium Concentric Reducer

Seamless Eccentric reducer

eccentric reducer4 - ASME B16.9 ASTM B363 Titanium Concentric Reducer

Welded Eccentric reducer

As shown in Fig. 2 , in this style of reducer there is an offset in between the center lines of bigger end and center line of smaller end. This offset or eccentricity will maintain a flat side either on top or on bottom side.

Eccentric reducer - ASME B16.9 ASTM B363 Titanium Concentric Reducer

Fig.2: Eccentric Reducer

This offset or eccentricity can easily be found out by the following equation:

  • Eccentricity=(Bigger end ID-Smaller end ID)/2

While using this type of reducer the user has the option of orienting the flat side. Usually for horizontal lines, eccentric reducers are oriented with either the flat side up or down and the same with deviation is mentioned in isometric.

Normally eccentric reducers with flat side down are preferred for following cases on horizontal lines:

  • On Sleepers and Piperacks;
  • On lines requiring gravity flow;
  • On pump suction line which handle slurry.

Eccentric reducers with flat side up are used for all pump suction lines (excluding pumps handling slurry) on horizontal lines. This way one can avoid air getting trapped inside the pipeline during initial venting through pump casing and will help in avoiding Cavitation.

Uses of eccentric reducers:

  • Keeping big pipes and small pipes together.
  • Reducing noise and vibration at the same time.
  • Requires less installation space.
  • Absorbs pipe wall and fluid borne noise.
  • Less turbulence or material entrapment.
  • Eccentric reducer are used with flat side up in pump suction to avoid cavitation.

Depending on end connections of this fitting with straight pipe, reducers are grouped as follows:

Butt Welding reducers:  The applicable pressure rating, dimensional and material standards for butt welding reducers are same as those applicable to butt welding elbows.

Socket welding reducers: As shown in Fig.3. such reducers are available in concentric type only &  in the form of a coupling with one end socket to fit larger diameter pipe and other end socket to fit smaller diameter pipe.  Standards are same as those applicable to socket welding elbows.

Socket Welded Reducers - ASME B16.9 ASTM B363 Titanium Concentric Reducer

Fig.3: Socket Welded Reducers

Screwed reducers: Available only in concentric type and are in the form of coupling having one end to fit bigger pipe and other end to fit smaller pipe.  ASME B16.11 is applicable dimensional standard. Material standards including pressure ratings are same as of screwed elbows.

Flanged reducers: Their pressure rating, use, material and dimensional standards are same as those applicable
to flanged elbows. Regardless of reduction their face to face dimensions are governed by the larger pipe size.

Dimensions Butt Weld Reducers Con & Ecc ASME B16.920180111112141 50580 - ASME B16.9 ASTM B363 Titanium Concentric Reducer

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
20180111112141 50580 - ASME B16.9 ASTM B363 Titanium Concentric Reducer
NPS O.D.
D
O.D.
D1
Len
H
2½*1 73 33.4 89
2½*1¼ 73 42.2 89
2½*1½ 73 48.3 89
2½*2 73 60.3 89
3*1¼ 88.9 42.2 89
3*1½ 88.9 48.3 89
3*2 88.9 60.3 89
3*2½ 88.9 73 89
3½*1¼ 101.6 42.2 102
3½*1½ 101.6 48.3 102
3½*2 101.6 60.3 102
3½*2½ 101.6 73 102
3½*3 101.6 88.9 102
NPS O.D.
D
O.D.
D1
Len
H
4*1½ 114.3 48.3 102
4*2 114.3 60.3 102
4*2½ 114.3 73 102
4*3 114.3 88.9 102
4*3½ 114.3 101.6 102
5*2 141.3 60.3 127
5*2½ 141.3 73 127
5*3 141.3 88.9 127
5*3½ 141.3 101.6 127
5*4 141.3 114.3 127
6*2½ 168.3 73 140
6*3 168.3 88.9 140
6*3½ 168.3 101.6 140
6*4 168.3 114.3 140
6*5 168.3 141.3 140
20180111112141 50580 - ASME B16.9 ASTM B363 Titanium Concentric Reducer
NPS O.D.
D
O.D.
D1
Len
H
8*3½ 219.1 101.6 152
8*4 219.1 114.3 152
8*5 219.1 141.3 152
8*6 219.1 168.3 152
10*4 273 114.3 178
10*5 273 141.3 178
10*6 273 168.3 178
10*8 273 219.1 178
12*5 323.9 141.3 203
12*6 323.9 168.3 203
12*8 323.9 219.1 203
12*10 323.9 273 203
14*6 355.6 168.3 330
14*8 355.6 219.1 330
14*10 355.6 273 330
14*12 355.6 323.9 330
NPS O.D.
D
O.D.
D1
Len
H
16*8 406.4 219 356
16*10 406.4 273 356
16*12 406.4 323.9 356
16*14 406.4 355.6 356
18*10 457 273 381
18*12 457 323.9 381
18*14 457 355.6 381
18*16 457 406.4 381
20*12 508 323.9 508
20*14 508 355.6 508
20*16 508 406.4 508
20*18 508 457 508
22*14 559 355.6 508
22*16 559 406.4 508
22*18 559 457 508
22*20 559 508 508
20180111112141 50580 - ASME B16.9 ASTM B363 Titanium Concentric Reducer
NPS O.D.
D
O.D.
D1
Len
H
24*16 610 406.4 508
24*18 610 457 508
24*20 610 508 508
24*22 610 559 508
26*18 660 457 610
26*20 660 508 610
26*22 660 559 610
26*24 660 610 610
28*18 711 457 610
28*20 711 508 610
28*24 711 610 610
28*26 711 660 610
30*20 762 508 610
30*24 762 610 610
30*26 762 660 610
30*28 762 711 610
32*24 813 610 610
32*26 813 660 610
32*28 813 711 610
32*30 813 762 610
NPS O.D.
D
O.D.
D1
Len
H
34*24 864 610 610
34*26 864 660 610
34*30 864 762 610
34*32 864 813 610
36*24 914 610 610
36*26 914 660 610
36*30 914 762 610
36*32 914 813 610
36*34 914 864 610
38*26 965 660 610
38*28 965 711 610
38*30 965 762 610
38*32 965 813 610
38*34 965 864 610
38*36 965 914 610
40*30 1016 762 610
40*32 1016 813 610
40*34 1016 864 610
40*36 1016 914 610
40*38 1016 965 610

Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer.

DIMENSIONAL TOLERANCES OF CONCENTRIC AND ECCENTRIC REDUCERS ASME B16.9

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.

20180111112358 93314 - ASME B16.9 ASTM B363 Titanium Concentric Reducer

Note:
MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 – NPS 24. Except with regard to the outside diameter at the bevel.

Applications of Pipe Reducer:

  • Pipe Reducer
  • Hydraulic system
  • Pneumatic system
  • Pharmaceutical fittings
  • Air brake fittings
  • Gas fittings
  • Refrigerant fittings

Uses of pipe reducer:

A pipe reducer serves the two basic purposes:

  • Changing the piping diameter
  • Handling the expansion, misalignment or vibration problem

Manufacture of seamless reducer

Reducer is used for pipe diameter changes in a pipe. Usually adopted for reducing the forming process of pressing, expanding to suppress or reducing and expanding, to certain specifications of the reducer and stamping can be applied.
A. reducing forming/hole enlargement
Reducer reducing forming technology is will be equal and reducer big end diameter of tube rounds into the forming mould, through along the axial direction of tube billet, shrink along the cavity movement and metal forming. According to the size of the reducer reducer, divided into the one of pressing or more press forming.
Forming hole diameter is less than reducer big end diameter of the tube billet, used in die forming along the tube billet diameter hole enlargement. Hole enlargement technology mainly to solve the reducer in the variable diameter is larger not easily by reducing forming, sometimes according to the requirements of the materials and products forming, expanding and reducing method of combination.
In the process of reducing or expanding deformation, according to different materials and variable diameter, determination by cold pressing and hot pressing. Under normal circumstances, as far as possible by cold pressing, but the multiple variable diameter and cause serious work hardening of the thick or alloy steel, wall thickness of materials appropriate USES hot pressing.
B. stamping
In addition to the use of steel tube as raw material to produce reducer, the part of the specifications of the reducer can also be used steel plate stamping forming technology is adopted to improve the production. Drawing die shapes used by reference to reducing tube surface size design, use after blanking punching die, stamping steel stretch forming.
The stress distribution and deformation characteristics:
(1) the inner pressure function similarly hereinafter heart reducer an area about the size of the pressure difference between the bending moment caused by big end is relatively open, small end relative shrinkage phenomenon;

(2) the internal pressure under the action of eccentric reducer in central eccentric side inside the big end surface and eccentric side to the outer ring stress is the largest.

Reducers be applied, to change from pipe diameter in one direction. Standard there are 2 possibilities, the concentric reducer, is usually used in vertical pipe lines, and the eccentric reducer that is used in horizontal pipe lines.

The large sizes steel pipe reducers are commonly made from the steel plates, the production method is nearly same with the large sizes steel elbows production .  Pressing and forming the steel plates to the shape of a reducer then welding the seam . The heat treatment and RT inspection is also necessary for the quality assurance.

Inspection

  • Visual the surface of concentric reducer body. Such as dents, die marks, porosity, undercuts etc.
  • Check the marking. Such as size, material code, material grade, thickness, heat no.
  • Measure the size. Such as large and small end diameter, thickness, height of end to end.
  • Test the material. Use a spectrometer to measure the material of concentric reducer.

Concentric Reducer 8″ x 4″ / Thk 0.325″ X 0.375″ Height 6″ in millimetre size is OD219.1 x 114.3 / T 8.25 x 9.5mm – H152.4mm. The tolerance is stated in ASME B16.9 as following:
OD 219.1 +2.4mm / -1.6mm
OD 114.3 +1.6mm
T 8.25 x 9.5mm ( ± 12.5%)
H 152.4 + 2mm

How to Calculation Weight of Concentric Reducer

The steel pipe reducer weight formula is: 0.02466 * S <(D+d)/2 – S> * H / 1000

  • D = Large end diameter in mm.
  • d = Small end diameter in mm.
  • S = Large end Thickness in mm.
  • H = Height from end to end.

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Name
ASTM B363 Titanium Concentric Reducer
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