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MSS SP 75 WPHY 52, 60, 65, 70 Pipe Fittings

MSS SP 75 WPHY 52, 60, 65, 70 Pipe Fittings

MMS SP 75 Buttweld Pipe Fittings are a type of high-quality pipe fittings used in various industrial applications, especially for connecting, redirecting, or terminating sections of pipe. These fittings are manufactured according to MMS SP 75 standards, ensuring they meet the necessary strength, pressure rating, and durability requirements for demanding environments.

Type of MSS SP 75 Pipe Fittings

stainless-steel-elbow

MSS SP 75 Elbow

stainless-steel-concentric-tee

MSS SP 75 Tee

MSS-SP-43 Reducer

MSS SP 75 Reducer

stainless-steel-cap

MSS SP 75 Cap

MMS-SP-75 Material

  • WPHY-42: Carbon steel with a minimum yield strength of 42,000 psi (290 MPa).
  • WPHY-46: Carbon steel with a minimum yield strength of 46,000 psi (317 MPa).
  • WPHY-52: Carbon steel with a minimum yield strength of 52,000 psi (359 MPa).
  • WPHY-56: Carbon steel with a minimum yield strength of 56,000 psi (386 MPa).
  • WPHY-60: Carbon steel with a minimum yield strength of 60,000 psi (414 MPa).
  • WPHY-65: Carbon steel with a minimum yield strength of 65,000 psi (448 MPa).
  • WPHY-70: Carbon steel with a minimum yield strength of 70,000 psi (483 MPa).
  • WPHY-80: Carbon steel with a minimum yield strength of 80,000 psi (552 MPa).

MSS SP 75 Pipe Fitting Dimension

45-Degree Elbow Dimensions Chart

NPSO.D.
D
90 deg LR Center-to-End
A
45 deg Long Radius Center-to-End B90 deg 3D Center-to-End A45 deg 3D Center-to-End B
1/221.33816
3/426.738195724
133.438227631
42.248259539
48.3572911447
260.3763515263
73954419079
388.91145122995
101.613357267111
4114.315264305127
5141.319079381157
6168.322995457189
8219.1305127610252
10273381159762316
12323.8457190914378
14355.65332221067441
16406.46102541219505
184576862861372568
205087623181524632
225598383431676694
246109143811829757
266609914061981821
2871110674382134883
3076211434702286964
32813121950224381010
34864129553325911073
36914137256527431135
38965144860028961200
401016152463230481264
421067160066032001326
441118167669533531389
461168175372735051453
481219182975936581516

90 Degree Elbow Dimensions Chart

Inch.NDmillimeterCenter to centerRadiusCenter to endBack to face
DOABK
1/21521,3476,2038,1015,8747,62
3/42026,6757,1528,5711,1142,86
12533,4076,2038,1022,2255,56
1 1/43242,1695,2547,6025,4069,85
1 1/24048,26114,3057,1528,5782,55
25060,32152,4076,2034,92106,40
2 1/26573,02190,5095,2544,45131,80
38088,90228,60114,3050,80158,75
3 1/290101,60266,70133,3557,15184,15
4100114,30304,80152,4063,50209,55
5125141,30381,00190,5079,38261,90
6150168,27457,20228,6095,25312,70
8200219,07609,60304,80127,00414,30
10250273,05762,00381,00158,75517,50
12300323,85914,40457,20190,50619,10
14350355,601066,80533,40222,25711,20
16400406,401219,20609,60254,00812,80
18450457,201371,60685,80285,74914,40
20500508,001524,00762,00317,501016,00
22550558,801676,40838,20342,901117,60
24600609,601828,80914,40381,001219,20
28700711,202133,601066,80441,901422,40

180 Degree Elbow Dimensions Chart

Normal Pipe SizeOutside Daimeter
D
ASME 180 degree Long RadASME 180 degree Short Rad
Center to Center OBack to Face KCenter to Center OBack to Face K
1/221.37648
3/426.77651
133.476565141
1.1/442.295706452
1.1/248.3114837662
260.315210610281
2.1/273190132127100
388.9229159152121
3.1/2101.6267184178140
4114.3305210203159
5141.3381262254197
6168.3457313305237
8219.1610414406313
10273762518508391
12323.8914619610467
14355.61067711711533
16406.41219813813610
184571372914914686
20508152410161016762
22559167611181118838
24610182912191219914
Normal Pipe SizeOutside Daimeter D180 degree Long Rad180 degree Short Rad
Center to Center OBack to Face KCenter to Center OBack to Face K

Straight / Equal Tee Dimensions Chart

NOMINAL PIPE SIZEOUTSIDE DIAMETERCENTER TO ENDLENGTH
Inch.ODCM
1/221.32525
3/426.72929
133.43838
1 1/442.24848
1 1/248.35757
260.36464
2 1/2737676
388.98686
3 1/2101.69595
4114.3105105
5141.3124124
6168.3143143
8219.1178178
10273.1216216
12323.9254254
14355.6279279
16406.4305305
18457.2343343
20508381381
22559419419
24610432432
26660495495
28711521521
30762559559
32813597597
34864635635
36914673673
38965711711
401016749749
421067762711
441118813762
461168851800
481219889838

Reducing Tee Dimensions

NOMINAL PIPE SIZEOUTSIDE DIAMETERCENTER TO END
InchDPCM
1/2 x 3/821.317.12525
1/2 x 1/421.313.72525
3/4 x 1/226.721.32929
3/4 x 3/826.717.12929
1 x 3/433.426.73838
1 x 1/233.421.33838
1 1/4 x 142.233.44848
1 1/4 x 3/442.226.74848
1 1/4 x 1/242.221.34848
1 1/2 x 1 1/248.342.25757
1 1/2 x 148.333.45757
1 1/2 x 3/448.326.75757
1 1/2 x 1/248.321.35757
2 x 1 1/260.348.26460
2 x 1 1/460.342.26457
2 x 160.333.46451
2 x 3/460.326.76444
2 1/2 x 27360.37670
2 1/2 x 1 1/27348.37667
2 1/2 x 1 1/47342.27664
2 1/2 x 17333.47657
3 x 2 1/288.9738683
3 x 288.960.38676
3 x 1 1/288.948.38673
3 x 1 1/488.942.28670
3 1/2 x 3101.688.99592
3 1/2 x 21/2101.6739589
3 1/2 x 2101.660.39583
3 1/2 x 1 1/2101.648.39579
4 x 3 1/2114.3101.6105102
4 x 3114.388.910598
4 x 2 1/2114.37310595
4 x 2114.360.310589
4 x 1 1/2114.348.310586
5 x 4141.3114.3124117
5 x 3 1/2141.3101.6124114
5 x 3141.388.9124111
5 x 2 1/2141.373124108
5 x 2141.360.3124105
6 x 5168.3141.3143137
6 x 4168.3114.3143130
6 x 3 1/2168.3101.6143127
6 x 3168.388.9143124
6 x 2 1/2168.373143121
8 x 6219.1168.3178168
8 x 5219.1141.3178162
8 x 4219.1114.3178156
8 x 3 1/2219.1101.6178152
10 x 8273.1219.1216203
10 x 6273.1168.1216194
10 x 5273.1141.3216191
10 x 4273.1114.3216184
12 x 10323.9273.1254241
12 x 8323.9219.1254229
12 x 6323.9168.3254219
12 x 5323.9141.3254216
14 x 12355.6323.9279270
14 x 10355.6273.1279257
14 x 8355.6219.1279248
14 x 6355.6168.3279238
16 x 14406.4355.6305305
16 x 12406.4323.9305295
16 x 10406.4273.1305283
16 x 8406.4219.1305273
16 x 6406.4168.3305264
18 x 16457406.4343330
18 x 14457355.6343330
18 x 12457323.9343321
18 x 10457273.1343308
18 x 8457219.1343298
20 x 18508457381368
20 x 16508406.4381356
20 x 14508355.6381356
20 x 12508323.9381346
20 x 10508273.1381333
20 x 8508219.1381324
22 x 20559508419406
22 x 18559457419394
22 x 16559406.4419381
22 x 14559355.6419381
22 x 12559323.9419371
24 x 10559273.1419359
24 x 22610559432432
24 x 20610508432432
24 x 18610457432419
24 x 16610406.4432406
24 x 14610355.6432406
24 x 12610323.9432397
24 x 10610273.1432384

Concentric and Eccentric Reducer Dimensions Chart

NOMINAL PIPE SIZEOUTSIDE DIAMETEREND TO END
InchDPH
3/4 x 1/226.721.338
3/4 x 3/826.717.138
1 x 3/433.426.751
1 x 1/233.421.351
1 1/4 x 142.233.451
1 1/4 x 3/442.226.751
1 1/4 x 1/242.221.351
1 1/2 x 1 1/248.342.264
1 1/2 x 148.333.464
1 1/2 x 3/448.326.764
1 1/2 x 1/248.321.364
2 x 1 1/260.348.276
2 x 1 1/460.342.276
2 x 160.333.476
2 x 3/460.326.776
2 1/2 x 27360.389
2 1/2 x 1 1/27348.389
2 1/2 x 1 1/47342.289
2 1/2 x 17333.489
3 x 2 1/288.97389
3 x 288.960.389
3 x 1 1/288.948.389
3 x 1 1/488.942.289
3 1/2 x 3101.688.9102
3 1/2 x 21/2101.673102
3 1/2 x 2101.660.3102
3 1/2 x 1 1/2101.648.3102
3 1/2 x 1 1/4101.642.2102
4 x 3 1/2114.3101.6102
4 x 3114.388.9102
4 x 2 1/2114.373102
4 x 2114.360.3102
4 x 1 1/2114.348.3102
5 x 4141.3114.3127
5 x 3 1/2141.3101.6127
5 x 3141.388.9127
5 x 2 1/2141.373127
5 x 2141.360.3127
6 x 5168.3141.3140
6 x 4168.3114.3140
6 x 3 1/2168.3101.6140
6 x 3168.388.9140
6 x 2 1/2168.373140
8 x 6219.1168.3152
8 x 5219.1141.3152
8 x 4219.1114.3152
8 x 3 1/2219.1101.6152
10 x 8273.1219.1178
10 x 6273.1168.1178
10 x 5273.1141.3178
10 x 4273.1114.3178
12 x 10323.9273.1203
12 x 8323.9219.1203
12 x 6323.9168.3203
12 x 5323.9141.3203
14 x 12355.6323.9330
14 x 10355.6273.1330
14 x 8355.6219.1330
14 x 6355.6168.3330
16 x 14406.4355.6356
16 x 12406.4323.9356
16 x 10406.4273.1356
16 x 8406.4219.1356
16 x 6406.4168.3356
18 x 16457406.4381
18 x 14457355.6381
18 x 12457323.9381
18 x 10457273.1381
18 x 8457219.1381
20 x 18508457508
20 x 16508406.4508
20 x 14508355.6508
20 x 12508323.9508
20 x 10508273.1508
20 x 8508219.1508
22 x 20559508508
22 x 18559457508
22 x 16559406.4508
22 x 14559355.6508
22 x 12559323.9508
24 x 10559273.1508
24 x 22610559508
24 x 20610508508
24 x 18610457508
24 x 16610406.4508
24 x 14610355.6508
24 x 12610323.9508
24 x 10610273.1508

End Cap Dimension Chart

Inch.MMHeight
DE
1/21521,3425,40
3/42026,6731,75
2533,4038,10
1 1/43242,1638,10
1 1/24048,2638,10
25060,3238,10
2 1/26573,0238,10
38088,9050,80
3 1/290101,6063,50
4100114,3063,50
5125141,3076,20
6150168,2788,90
8200219,07101,60
10250273,05127,00
12300323,85152,40
14350355,60165,10
16400406,40177,80
18450457,20203,20
20500508,00228,60
22550558,80254,00
24600609,60266,70
28700711,20266,70

MSS SP 75 Pipe Fitting Weight

45-degree Elbow Weight Chart (in lbs)

Nominal Pipe Size (NPS)Schedule 40Schedule 80Schedule 160
1/2″0.60.91.3
3/4″0.81.21.7
1″1.11.62.2
1 1/4″1.42.13.0
1 1/2″1.82.73.7
2″2.64.05.5
2 1/2″4.16.28.4
3″5.78.611.5
4″8.612.717.0
5″11.317.022.7
6″14.521.829.5
8″20.530.741.0
10″28.042.056.0
12″36.855.273.5
14″48.372.496.5
16″60.590.7120.5
18″74.4111.6148.0
20″89.9134.9179.5
24″114.0171.0228.0
30″162.0243.0324.0
36″212.0318.0424.0
42″274.0411.0548.0
48″352.0528.0704.0

 

90-degree Elbow Weight Chart (in lbs)

Nominal Pipe Size (NPS)Schedule 40Schedule 80Schedule 160
1/2″0.71.01.4
3/4″1.01.42.0
1″1.31.92.6
1 1/4″1.62.43.3
1 1/2″2.13.04.0
2″2.94.45.9
2 1/2″4.56.89.1
3″6.59.712.9
4″9.714.619.5
5″12.719.025.3
6″16.524.833.0
8″23.034.546.0
10″31.547.363.7
12″40.961.481.9
14″53.179.7106.0
16″66.099.0132.0
18″80.7121.0160.0
20″97.5146.0194.0
24″123.5185.0246.0
30″177.0265.5354.0
36″234.0351.0468.0
42″304.0456.0608.0
48″388.0582.0776.0

 

180 Degree Elbow Weight Chart (in lbs)

Nominal Pipe Size (NPS)Schedule 40Schedule 80Schedule 160
1/2″1.11.52.0
3/4″1.42.02.8
1″1.82.73.6
1 1/4″2.33.44.5
1 1/2″3.04.45.9
2″4.36.48.5
2 1/2″6.710.113.4
3″9.414.118.7
4″14.020.927.8
5″18.527.536.7
6″24.035.847.8
8″33.049.566.0
10″44.566.889.0
12″56.084.0112.0
14″71.0106.5142.0
16″88.0132.0176.0
18″108.0162.0216.0
20″128.0192.0256.0
24″160.0240.0320.0

 

Equal Tee Weight Chart (in lbs)

Nominal Pipe Size (NPS)Schedule 40Schedule 80Schedule 160
1/2″1.01.31.8
3/4″1.41.82.5
1″1.82.43.2
1 1/4″2.33.04.0
1 1/2″3.04.15.5
2″4.26.28.3
2 1/2″6.79.813.0
3″9.414.118.7
4″14.521.628.8
5″19.028.337.7
6″24.036.048.0
8″34.051.068.0
10″47.571.094.0
12″60.090.0120.0
14″75.0112.0150.0
16″94.0141.0188.0
18″114.0171.0228.0
20″134.0201.0268.0
24″170.0255.0340.0
30″255.0382.5510.0
36″335.0502.5670.0
42″420.0630.0840.0
48″510.0765.01020.0

 

Reducing Tee Weight Chart (in lbs)

Run x BranchSchedule 40 (lbs)Schedule 80 (lbs)Schedule 160 (lbs)
1/2″ x 3/8″0.30.40.6
3/4″ x 1/2″0.60.91.2
1″ x 3/4″0.81.21.6
1 1/4″ x 1″1.01.52.0
1 1/2″ x 1″1.21.82.5
2″ x 1 1/2″1.82.73.6
2 1/2″ x 2″2.53.85.1
3″ x 2″3.55.37.0
3″ x 2 1/2″3.85.77.6
4″ x 3″5.58.311.0
5″ x 4″7.310.914.4
6″ x 4″9.514.218.9
6″ x 5″10.115.120.2
8″ x 6″15.523.331.1
10″ x 8″21.031.542.0
12″ x 10″28.042.056.0
14″ x 12″36.054.072.0
16″ x 12″44.066.088.0
18″ x 16″56.084.0112.0
20″ x 16″68.0102.0136.0
24″ x 20″96.0144.0192.0
24″ x 10″80.0120.0160.0

 

Concentric and Eccentric Reducer Weight Chart (in lbs)

Run x BranchSchedule 40 (lbs)Schedule 80 (lbs)Schedule 160 (lbs)
3/4″ x 1/2″0.60.81.0
1″ x 3/4″1.01.41.8
1 1/4″ x 1″1.42.02.6
1 1/2″ x 1″1.62.43.2
2″ x 1 1/2″2.33.24.3
2 1/2″ x 2″3.04.45.9
3″ x 2″4.26.18.2
3″ x 2 1/2″4.46.58.7
4″ x 3″6.19.112.2
5″ x 4″8.312.516.7
6″ x 4″10.315.520.7
6″ x 5″11.016.522.0
8″ x 6″16.324.532.7
10″ x 8″22.033.044.0
12″ x 10″28.643.057.3
14″ x 12″37.656.475.2
16″ x 12″46.669.993.2
18″ x 16″59.088.5118.0
20″ x 16″71.0106.5142.0
24″ x 20″98.0147.0196.0
24″ x 10″78.0117.0156.0

 

End Cap Weight Chart (in lbs)

Nominal Pipe Size (NPS)Schedule 40 (lbs)Schedule 80 (lbs)Schedule 160 (lbs)
1/2″0.160.230.30
3/4″0.230.320.42
1″0.300.450.60
1 1/4″0.400.600.80
1 1/2″0.500.751.00
2″0.701.051.40
2 1/2″1.051.602.10
3″1.402.102.80
4″2.003.004.00
5″2.704.005.30
6″3.505.207.00
8″5.007.5010.00
10″7.5011.2014.90
12″10.0015.0020.00
14″12.5018.7025.00
16″15.5023.3031.00
18″19.0028.5038.00
20″23.0034.5046.00
24″30.0045.0060.00
28″37.5056.0075.00

MSS SP 75 Pipe Fitting Tolerance

Steel Elbow (45, 80, 180 Degree) Tolerance

ParameterTolerance
Angle±1° for all angles (45°, 90°, 180°)
Outside Diameter (OD)±1% of nominal OD or ±0.5 mm, whichever is greater
Wall Thickness (WT)±12.5% of specified wall thickness
Center-to-End Dimensions±1.5% of the nominal dimension or ±3 mm, whichever is greater
Out-of-Roundness≤1% of the nominal OD
End Preparation±1 mm for length and ±2° for bevel angle
Surface FinishFree from defects such as cracks, dents, or visible seams
Marking ToleranceLegible and durable markings in accordance with ASME, ANSI, or applicable standards

 

Concentric and Eccentric Reducer Tolerance

ParameterTolerance
Outside Diameter (OD)Large End: ±1% of nominal OD or ±0.5 mm (whichever is greater)
Small End: ±1% of nominal OD or ±0.5 mm (whichever is greater)
Wall Thickness (WT)±12.5% of specified wall thickness
Reducer Length (L)±1.5% of the nominal length or ±3 mm (whichever is greater)
ConcentricityOffset ≤5% of the nominal OD at the small end (for concentric reducers)
EccentricityOffset ≤5% of the nominal OD at the small end (for eccentric reducers)
End Preparation±1 mm for bevel length and ±2° for bevel angle
Out-of-Roundness≤1% of nominal OD at both ends
Surface FinishFree from defects such as cracks, dents, or visible seams
Marking ToleranceLegible and durable markings in accordance with ASME, ANSI, or applicable standards

 

Tee Tolerance 

ParameterTolerance
Outside Diameter (OD)±1% of nominal OD or ±0.5 mm, whichever is greater
Wall Thickness (WT)±12.5% of specified wall thickness
Center-to-End Dimensions±1.5% of nominal dimension or ±3 mm, whichever is greater
Branch Alignment±2 mm for alignment between branch centerline and run centerline
Out-of-Roundness≤1% of nominal OD
End Preparation±1 mm for bevel length and ±2° for bevel angle
Surface FinishFree from defects such as cracks, dents, or visible seams
Marking ToleranceLegible and durable markings in accordance with ASME, ANSI, or applicable standards

 

Cap Tolerance

ParameterTolerance
Outside Diameter (OD)±1% of nominal OD or ±0.5 mm, whichever is greater
Wall Thickness (WT)±12.5% of specified wall thickness
Height (H)±1.5% of the nominal height or ±3 mm, whichever is greater
Out-of-Roundness≤1% of the nominal OD
End Preparation±1 mm for bevel length and ±2° for bevel angle
Surface FinishFree from defects such as cracks, dents, or visible seams
Marking ToleranceLegible and durable markings in accordance with ASME, ANSI, or applicable standards

Application

  1. Oil and Gas Industry:
  2. Petrochemical and Chemical Industries:
  3. Power Generation:
  4. Water Treatment and Distribution:
  5. Shipbuilding and Marine Applications:
  6. Aerospace and Defense:
  7. Food and Beverage Industry:

Benefits

  • High Pressure Resistance: Designed for use in high-pressure systems, ensuring safe and reliable operation.
  • Durability: Made from robust materials like carbon steel and alloy steel, offering long-lasting performance.
  • Versatility: Suitable for a wide range of industries, including oil and gas, petrochemical, power generation, and water treatment.
  • Standardization: Adheres to established industry standards (ANSI B16.9), ensuring compatibility and uniformity across installations.
  • Corrosion Resistance: Provides resistance to corrosive substances, making it ideal for harsh environments.
  • Ease of Installation: Fittings are designed for easy welding and assembly, reducing installation time.
  • Cost-Effective: Offers a balance of high performance at a competitive price, making it ideal for large-scale projects.

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