TYPES OF FITTINGS

 

                                     TYPES OF FITTINGS

                               Fittings is the pipping component used to change the direction of flow and other dimensions basically fitting used in pipping and plumbing industries. generally large variety of fittings used in different industries as per requirement and type of work.some types of fitting shown below,

1)     ELBOW

                         Elbow is one type of industrial fittings which change the direction of piping. Elbow is key part of piping system that change the direction of flow in piping. Elbow is used to connect two pipes with different diameters and we can change the direction of flow in piping system the standard elbows comes in few different angles as 45 Degree,90 Degree, 180 Degree commonly also 60 Degree and 120 Degree for some special cases. Different types of with sizes as per requirement with different types of grades are available in market.

          Basically, Standard the Elbows classified as,

      i) 45 Degree Elbows

     ii) 90 Degree Elbows

            45 Degree Elbow: This elbow is functioned to change the fluid direction by 45 Degree 

       90 Degree Elbow: This Elbow is functioned to change the fluid direction by 90 degree and most common used elbows.

 90 Degree Elbows & 180 Degree Elbow again classified as, 

      i)  Long Radius Elbows

     ii) Short Radius Elbows

i) Long Radius Elbows:

                                          The curvature radius means elbow radius if in some cases the radius is larger than pipe diameter that is R ≥ 1.5 Diameter then such elbows called Long Radius Elbows.

 ii) Short Radius Elbows: 

                                          The curvature radius is same as pipe diameter then such elbows called Short Radius Elbows.

                        On the basis of connections, the elbow are classified as Butt Weld Elbows, Socket Welded Elbow and Threaded Elbows.

  (Note: The advantages of butt weld elbows over socket weld elbows and Threaded elbows is Butt welded elbows used with higher pressure and temperature.

  Materials:

       Carbon Steel Elbows: ASTM A234 GR. WPB and WPC, ASTM 420 WPL6.

       Stainless Steel Elbows: ASTM A403 WP304/304L, 316/316L,ASTM A270.

  Dimensional Tolerances:

                                              For the dimensions like nominal pipe size, outside diameter, weight, schedule etc for standard Elbows refer Standard ASME B16.5

REDUCER:

                                     Reducer is a one type of fitting used in pipelines in order to reduce its size from large to small boar. Reducer used as Nozzle or diffuser depend on type of application.    

ECCENTRIC REDUCER:

                                    Eccentric reducer is comical shaped but not symmetrical about the centre line or axis. The Eccentric Reducer is one type of fittings used in piping system between two pipes of different diameters. In Eccentric Reducer reduction in pipe size achieve by decreasing the diameter of the fittings. Eccentric Reducer used as diffuser or nozzle.

CONCENTRIC REDUCER:

                                            Concentric Reducer is in symmetrical and conical shaped in which the reduced the diameter equally about the centre line or axis .

   Note : Concentric Reducer removes noice pollution over Eccentric Reducer.)

   Materials :

   Carbon steel : ASTM A 234 GR. WPB, A420 WPL6

   Stainless Steel : ASTM A403 WP 304/304L, A403 316/316L 317/317L, 321, 310, 904L etc.

  Alloy : ASTM A234 WP1, WP5, WP9, WP11, WP22, WP9 etc.

Dimensional standard :

ASME B16.9 , DIN 2615, JIS B2312 and ASME B16.11.

 

EQUAL TEE :

                      Equal Tee is one type of fitting in which three opening in “T” formed . equal tee consisting in various sizes, two openings of same size. An equal tee has dragged to attach the fitting to a divider or stud. Equal tee is one of strong type of fittings which available in various sizes

          The dimensions of equal tee as shown below,

 Pic.01

The standard size of Equal Tee specify in ASME B16.9 specification Factory-Made Wrought Steel Buttwelding Fittings as mentioned nominal pipe size, outside diameter, Centre to end and length of equal tees.

 

   Materials :

    Carbon steel: ASTM/ASME A234 WPB-WPC

             Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911

             Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N

             ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti

             ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H

             Low temperature steel: ASTM/ASME A402 WPL 3-WPL 06

             High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

 Applications of pipe tee:

                      Pipe Tees are widely used in various commercial and industrial applications. Industrial applications include:

1) Pulp/paper

2) Refining

3) Textile

4) Waste treatment, Marine

5) Petroleum

6) Utilities/power generation

7) Automotive

8) Gas compression and distribution industries

9) Industrial equipment

10) Chemical processing

       THREADOLET:

       Threadolet is the one of self-reinforced branch fittings which is used whenever threaded branch connection required from the pipe header.

       Threadolet available in different sizes as either full size or reducing size.

    While dimensional inspection of threadolet the following dimensions checked as,

    a) Outer and inner diameter of the body.

    b) Length of the Hub.

    c) Thread Dimensions.

   Basically threadolet is design for specific conditions based on process pipping ASME CODE B13.3. Different class of threadolet available in market as per requirement

   Material :

          Stainless Steel: ASTM a182 F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L

Duplex Steel: duplex 2205 2507 s31803 s32750 s32760 s31254 254smo smo254 904l uns no8904 astm a182 f51 f53 f44 f55 f60 f62 s31050 s32205 s32550 

Carbon Steel: ASTM A105, A694 F42/46/52/56/60/65/70,A350 LF1 LF2 LF3 

Alloy Steel: ASTM A182 F5/F9/F11/F22/F91 

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SHRI BHAIRAV
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March 20, 2021 at 6:12 PM ×

Thank you for posting detailed information on all types of Stainless steel Pipe fittings. Shri Bhairav is a known manufacturer of Stainless steel 304 Pipe Fittings, which has some great features like having toughness, highly durable, smooth finish and more. They are providing Stainless Steel 304 Elbow Pipe Fittings that are being manufactured from best quality of raw materials.

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