The difference and specifications between mechanical tees and grooved tees

Nov. 09, 2022

What is the difference between a mechanical tee and a grooved tee? This is a question that many laypeople often ask. The same is a tee fitting. The mechanical tee and the grooved tee are actually quite different. First, look at the following two pictures:

Grooved Tee

Grooved Tee

Grooved Mechanical Tee

Grooved Mechanical Tee

Judging from the pictures, the two grooved products are very different. The grooved mechanical tee has two more threads and nuts and rubber rings than the grooved tee. Below I will describe their specific uses separately.

1. Grooved Tee

● effect:

A tee has three openings, one inlet, and two outlets, or two inlets and one outlet. A tee is a pipe fitting applied to a pipeline system, with T-shaped and Y-shaped, with equal-diameter nozzles and different-diameter nozzles, used for the convergence of three identical or different pipelines. The main function of the tee is to change the direction of the fluid.

● Install:

Grooved tees should be installed in grooved piping systems. All three outlets of the grooved tee should be connected to the pipe by rigid or flexible couplings. See below:

Rigid couplings

Rigid couplings

Regarding the similarities and differences between rigid clamps and flexible clamps, you can click the link below for a more detailed introduction to the article:

https://www.malleableiron-pipefitting.com/industry-knowledge/rigid-coupling-vs-flexible-coupling.html 

2. Grooved mechanical tee

⑴ Reasons to use a grooved mechanical tee:

To lead out a branch pipe with a different diameter, a mechanical tee is used in the construction process. A groove connection and a threaded connection are two types of connections. This type of connection is usually made for several reasons:

● Branch pipe must be installed somewhere on the main pipe.

Reducing tee can be used to lead a branch pipe out of an existing pipe of a fixed length (usually 6 meters), but the main pipe needs to be cut off.

● For the purpose of saving money.

The cost of a tee is greater than that of a mechanical tee. Under normal circumstances, mechanical tees are used when the diameter of the main pipe is 33, and U-shaped mechanical tees are usually used between 33 and 60. There are two ways to connect U-shaped mechanical tees: grooves or screws; they usually use 60 to 219 calibers, and they have an outer diameter of 21 to 33 inches (roughly 1/2" to 1"). The demand is not much different.

Threaded mechanical tee

The threaded mechanical tee is a very special kind of grooved pipe fittings. It is similar to the grooved mechanical tee and is also widely used in grooved piping systems, but the branch pipe connection port of the threaded mechanical tee is connected by threads. The picture below shows the threaded mechanical tee.

 

Threaded mechanical tee

Threaded mechanical tee

 3. Standard Specifications for Grooved Tees, Grooved Mechanical Tees, and Grooved Threaded Tees

Grooved Mechanical Tees

image.png

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Pipe O.D(D × d)

Working Pressure

Dimensions

Bolt/Nut Size

mm/in

mm/in

PSI/Mpa

K (mm/in)

W (mm/in)

L (mm/in)

H(mm/in)

No. - Size (mm)

100 × 25

114.3 × 33.7

300PSI
2.07MPa

363PSI
2.5MPa

102

71

180

80

M12×70

4 × 1

4.500 × 1.315

4.02

2.80

7.09

3.15

100 × 32

114.3 × 42.4

102

71

180

92

M12×70

4 × 1¼

4.500 × 1.660

4.02

2.80

7.09

3.62

100 × 40

114.3 × 48.3

102

71

180

92

M12×70

4 × 1½

4.500 × 1.900

4.02

2.80

7.09

3.62

100 × 50

114.3 × 60.3

102

71

180

107

M12×70

4 × 2

4.500 × 2.375

4.02

2.80

7.09

4.21

100 × 65

114.3 × 76.1

102

71

180

114

M12×70

4 × 2½

4.500 × 3.000

4.02

2.80

7.09

4.49

100 × 80

114.3 × 88.9

102

71

180

134

M12×70

4 × 3

4.500 × 3.500

4.02

2.80

7.09

5.28

125 × 65

139.7 × 76.1

115

84

217

114

M16×85

5 × 2½

5.500 × 3.000

4.53

3.31

8.54

4.49

125 × 80

139.7 × 88.9

115

84

217

134

M16×85

5 × 3

5.500 × 3.500

4.53

3.31

8.54

5.28

150 × 65

159.0 × 76.1

125

93

239

114

M16×95

6 × 2½

6.250 × 3.000

4.92

3.66

9.41

4.49

150 × 80

159.0 × 88.9

125

93

239

134

M16×95

6 × 3

6.250 × 3.500

4.92

3.66

9.41

5.28

150 × 100

159.0 × 108.0

130

93

239

162

M16×95

6 × 4

6.250 × 4.250

5.12

3.66

9.41

6.38

150 × 50

165.1 × 60.3

128

97

244

107

M16×95

6 × 2

6.500 × 2.375

5.04

3.82

9.61

4.21

150 × 65

165.1 × 76.1

128

97

244

114

M16×95

6 × 2½

6.500 × 3.000

5.04

3.82

9.61

4.49

150 × 80

165.1 × 88.9

128

97

244

134

M16×95

6 × 3

6.500 × 3.500

5.04

3.82

9.61

5.28

150 × 100

165.1 × 114.3

133

97

244

162

M16×95

6 × 4

6.500 × 4.500

5.24

3.82

9.61

6.38

200 × 50

219.1 × 60.3

156

126

307

107

M16×100

8 × 2

8.625 × 2.375

6.14

4.96

12.09

4.21

200 × 65

219.1 × 76.1

156

126

307

114

M16×100

8 × 2½

8.625 × 3.000

6.14

4.96

12.09

4.49

200 × 80

219.1 × 88.9

156

126

307

134

M16×100

8 × 3

8.625 × 3.500

6.14

4.96

12.09

5.28

200 × 100

219.1 × 114.3

158

126

307

162

M16×100

8 × 4

8.625 × 4.500

6.22

4.96

12.09

6.38

250 × 100

273.0× 114.3

187

152

384

162

M20×110

10 × 4

10.750 × 4.500

7.36

5.98

15.12

6.38 

 Grooved Threaded Tees

 

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 image.png

0

Pipe O.D(D × Rc)

Working Pressure

Dimensions

Bolt/Nut Size

mm/in

mm/in

PSI/Mpa

K (mm/in)

W (mm/in)

L (mm/in)

H (mm/in)

No. - Size (mm)

65 × 25

76.1 × 33.7

300PSI
2.07MPa

363PSI
2.5MPa

68

51

136

80

M12×65

2½ × 1

3.000 × 1.315

2.68

2.01

5.35

3.15

65 × 32

76.1 × 42.4

70

51

136

92

M12×65

2½ × 1¼

3.000 × 1.660

2.76

2.01

5.35

3.62

65 × 40

76.1 × 48.3

70

51

136

92

M12×65

2½ × 1½

3.000 × 1.900

2.76

2.01

5.35

3.62

80 × 25

88.9 × 33.7

75

58

149

80

M12×65

3 × 1

3.500 × 1.315

2.95

2.28

5.87

3.15

80 × 32

88.9 × 42.4

78

58

149

92

M12×65

3 × 1¼

3.500 × 1.660

3.07

2.28

5.87

3.62

80 × 40

88.9 × 48.3

78

58

149

92

M12×65

3 × 1½

3.500 × 1.900

3.07

2.28

5.87

3.62

80 × 50

88.9 × 60.3

82

58

149

107

M12×65

3 × 2

3.500 × 2.375

3.23

2.28

5.87

4.21

100 × 25

108.0 × 33.7

87.5

68

174

80

M12×70

4 × 1

4.250 × 1.315

3.44

2.68

6.85

3.15

100 × 32

108.0 × 42.4

90

68

174

92

M12×70

4 × 1¼

4.250 × 1.660

3.54

2.68

6.85

3.62

100 × 40

108.0 × 48.3

90

68

174

92

M12×70

4 × 1½

4.250 × 1.900

3.54

2.68

6.85

3.62

100 × 50

108.0 × 60.3

94

68

174

107

M12×70

4 × 2

4.250 × 2.375

3.70

2.68

6.85

4.21

100 × 65

108.0 × 76.1

100

68

174

114

M12×70

4 × 2½

4.250 × 3.000

3.94

2.68

6.85

4.49

100 × 25

114.3 × 33.7

90

71

180

80

M12×70

4 × 1

4.500 × 1.315

3.54

2.80

7.09

3.15

100 × 32

114.3 × 42.4

92

71

180

92

M12×70

4 × 1¼

4.500 × 1.660

3.62

2.80

7.09

3.62

100 × 40

114.3 × 48.3

92.5

71

180

92

M12×70

4 × 1½

4.500 × 1.900

3.64

2.80

7.09

3.62

100 × 50

114.3 × 60.3

96

71

180

107

M12×70

4 × 2

4.500 × 2.375

3.78

2.80

7.09

4.21

100 × 65

114.3 × 76.1

103

71

180

114

M12×70

4 × 2½

4.500 × 3.000

4.06

2.80

7.09

4.49

100 × 80

114.3 × 88.9

104

71

180

134

M12×70

4 × 3

4.500 × 3.500

4.09

2.80

7.09

5.28

125 × 65

133.0 × 76.1

112

80

210

114

M16×85

5 × 2½

5.250 × 3.000

4.41

3.15

8.27

4.49

125 × 80

133.0 × 88.9

113

80

210

134

M16×85

5 × 3

5.250 × 3.500

4.45

3.15

8.27

5.28

125 × 25

139.7 × 33.7

103

84

217

80

M16×85

5 × 1

5.500 × 1.315

4.06

3.31

8.54

3.15

125 × 32

139.7 × 42.4

105

84

217

92

M16×85

5 × 1¼

5.500 × 1.660

4.13

3.31

8.54

3.62

125 × 40

139.7 × 48.3

105

84

217

92

M16×85

5 × 1½

5.500 × 1.900

4.13

3.31

8.54

3.62

125 × 50

139.7 × 60.3

109

84

217

107

M16×85

5 × 2

5.500 × 2.375

4.29

3.31

8.54

4.21

125 × 65

139.7 × 76.1

116

84

217

114

M16×85

5 × 2½

5.500 × 3.000

4.57

3.31

8.54

4.49

125 × 80

139.7 × 88.9

117

84

217

134

M16×85

5 × 3

5.500 × 3.500

4.61

3.31

8.54

5.28

150 × 25

159.0 × 33.7

114

93

239

80

M16×95

6 × 1

6.250 × 1.315

4.49

3.66

9.41

3.15

150 × 32

159.0 × 42.4

116

93

239

92

M16×95

6 × 1¼

6.250 × 1.660

4.57

3.66

9.41

3.62

150 × 40

159.0 × 48.3

116

93

239

92

M16×95

6 × 1½

6.250 × 1.900

4.57

3.66

9.41

3.62

150 × 50

159.0 × 60.3

119

93

239

107

M16×95

6 × 2

6.250 × 2.375

4.69

3.66

9.41

4.21

150 × 65

159.0 × 76.1

124

93

239

114

M16×95

6 × 2½

6.250 × 3.000

4.88

3.66

9.41

4.49

150 × 80

159.0 × 88.9

125

93

239

134

M16×95

6 × 3

6.250 × 3.500

4.92

3.66

9.41

5.28

150 × 25

165.1 × 33.7

117

97

244

80

M16×95

6 × 1

6.500 × 1.315

4.61

3.82

9.61

3.15

150 × 32

165.1 × 42.4

118

97

244

92

M16×95

6 × 1¼

6.500 × 1.660

4.65

3.82

9.61

3.62

150 × 40

165.1 × 48.3

120

97

244

92

M16×95

6 × 1½

6.500 × 1.900

4.72

3.82

9.61

3.62

150 × 50

165.1 × 60.3

122

97

244

107

M16×95

6 × 2

6.500 × 2.375

4.80

3.82

9.61

4.21

150 × 65

165.1 × 76.1

127

97

244

114

M16×95

6 × 2½

6.500 × 3.000

5.00

3.82

9.61

4.49

150 × 80

165.1 × 88.9

128

97

244

134

M16×95

6 × 3

6.500 × 3.500

5.04

3.82

9.61

5.28

150 × 100

165.1 × 114.3

132

97

244

162

M16×95

6 × 4

6.500 × 4.500

5.20

3.82

9.61

6.38

200 × 25

219.1 × 33.7

143

126

307

80

M16×100

8 × 1

8.625 × 1.315

5.63

4.96

12.09

3.15

200 × 32

219.1 × 42.4

145

126

307

92

M16×100

8 × 1¼

8.625 × 1.660

5.71

4.96

12.09

3.62

200 × 40

219.1 × 48.3

145

126

307

92

M16×100

8 × 1½

8.625 × 1.900

5.71

4.96

12.09

3.62

200 × 50

219.1 × 60.3

149

126

307

107

M16×100

8 × 2

8.625 × 2.375

5.87

4.96

12.09

4.21

200 × 65

219.1 × 76.1

155

126

307

114

M16×100

8 × 2½

8.625 × 3.000

6.10

4.96

12.09

4.49

200 × 80

219.1 × 88.9

158

126

307

134

M16×100

8 × 3

8.625 × 3.500

6.22

4.96

12.09

5.28

250 × 25

273.0 × 33.7

175

152

384

80

M20×110

10 × 1

10.750 × 1.315

6.89

5.98

15.12

3.15

250 × 50

273.0 × 60.3

179

152

384

107

M20×110

10 × 2

10.750 × 2.375

7.05

5.98

15.12

4.21

 Grooved Tees

image.png

 image.png 

Nominal Size

Pipe O.D

Working Pressure

Dimensions

mm/in

mm/in

PSI/Mpa

L (mm/in)

50    

60.3

300PSI
2.07MPa

363PSI
2.5MPa

68.5

2    

2.374

2.697

65    

76.1

74

2.996

2.913

80    

88.9

84

3    

3.500

3.307

100    

108.0

100

4    

4.252

3.937

100    

114.3

100

4    

4.500

3.937

125    

133.0

122

5    

5.236

4.803

125    

139.7

122

5    

5.500

4.803

150    

159.0

138

6    

6.260

5.433

150    

165.1

138

6    

6.500

5.433

200    

219.1

171

8    

8.626

6.732

250    

273.0



212

10    

10.748



8.346

300    

323.9



242

12    

12.752



9.528

250    

273.0

225PSI
1.6MPa

363PSI
2.5MPa  225PSI
1.6MPa

212

10    

10.748

8.346

300    

323.9

242

12    

12.752

9.528

If you are interested in grooved pipe fittings, please click the link below to enter the official website of Jianzhi Group to see more about grooved pipe fittings.

https://www.malleableiron-pipefitting.com/ 


SAFER

Contact Us

E-mail: sales1@jianzhi-fitting.com

Tel: +86 022 8848 8866

Office In Tianjin:

Heping District, Tianjin, China.

Production Base 1:

Chifeng, Inner Mongolia, China.

Production Base 2:

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Jianzhi International Trade (Tianjin) Co., Ltd.

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