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Shell and Tube Heat Exchangers



Glass Shell and Tube Heat Exchangers are of recent development. These heat exchangers can be used for condensation of vapours, vaporisation, cooling and heating of liquids.

The Shell and Tube Heat Exchangers are available in various combinations of Glass/Metal/FRP in shell or headers. Glass shells are constructed using standard glass components like Pipe Section, Tee, Cross etc. Metal shells are generallyconstructed of MS in one piece.

Shell and Tube Heat Exchangers consists of a cylindrical shell which houses a glass tube bundle. Tubes are sealed with shell with the help of PTFE tube sheets. Each tube is indiidually sealed by iton 'O' Ring in tube sheets at both the ends. Baffles are proided in the shell to maintain state of turbulence of fluid as well as to hold the tubes.



Glass Shell and Tube Heat Exchangers are of recent development. These heat exchangers can be used for condensation of vapour, vaporization, cooling and heating of liquids.

The Shell and Tube Heat Exchangers are available in various combinations of Glass/Metal/FRP in shell or headers. Glass shells are constructed using standard glass components like Pipe Section, Tee, Cross etc. Metal shells are generally constructed of MS in one piece.

Shell and Tube Heat Exchangers consists of a cylindrical shell which houses a glass tube bundle. Tubes are sealed with shell with the help of PTFE tube sheets. Each tube is individually sealed by iton 'O' Ring in tube sheets at both the ends. Baffles are provided in the shell to maintain state of turbulence of fluid as well as to hold the tubes.

Shell and Tube Heat Exchangers have come out to be more advance and beneficial for its following advantages:

  • Bigger heat transfer area in one unit.
  • Less pressure drop.
  • Stuffing box sealing allows easy tube replacement.
  • Less maintainenance.

Technical Information

All the Shell and Tube Heat Exchangers are constructed with 12 mm OD, 1.5 mm thick glass tubes. These tubes are arranged in triangular pitch of 21 mm. Baffles are provided with 30% cut at a distance of approximately equal to inner diameter of shell. Generally, PTFE baffles are used in Glass shells and PP baffles in Metal Shells.

Shell and Tube Heat Exchanger can be operated within a temperature range of -40oC to 150oC on either side. However, differential temperature should not exceed 120oC at any point. All the Shell and Heat exchangers can be use pre-dominantly under full vacuum, provided differential pressure does not exceed 3 bar g.

The range of overall heat tranfer co-eeficient in the Shell and Tube Heat Exchangers are considered as follows:

Condensation :Water - Water :600 - 900 Kcal/m2,h,oC
Condensation :Water - Organic Solvents :400 - 600 Kcal/m2,h,oC
Evaporation :Steam - Water :500 - 900 Kcal/m2,h,oC
Cooling :Water - Water :500 - 500 Kcal/m2,h,oC
Cooling :Water - Organic Solvents :250 - 600 Kcal/m2,h,oC
Cooling :Water - Oil :75 - 350 Kcal/m2,h,oC
Cooling :Water - Air :25 - 250 Kcal/m2,h,oC

DN

No. of Tubes

Cross Section Cm2

Max. operating Pressure

Shell Side

Tube Side

Tube Side

Shell Side

GlassMetal

80

7

23

5

3.0

3.0

3.0

100

19

43

12

2.0

2.0

2.0

150

37

93

23

1.5

1.5

2.0

225

73

189

46

1.0

1.0

2.0

300

151

348

96

0.7

0.7

2.0

Glass Shell

Cat. Ref.

HTA m2

DN

DN1

DN2

DN3

L

L1

L2

P

T

S

H

B

Baffles

RGC6/1

1

150

50

25

25

1050

800

500

250

250

25

125

148

4

RGC6/1.5

1.5

150

50

25

25

1400

1150

850

600

250

25

125

159

6

RGC6/2

2.2

150

80

50

50

1900

1650

1300

1000

300

25

125

135

10

RGC6/32.91508050502400

2150

1800

1500

300

25

125

156

12

RGC6/44.122580

50

251900

1550

1200

900

300

25

175

223

6

RGC6/55.2225100

80

502300

1950

1450

1000

450

25

175

192

8

RGC6/66.6225100

80

502800

2450

1950

1500

450

25

175

205

10

RGC12/88.5300100

80

251950

1550

1100

700

400

25

200

332

4

RGC12/1110.8300150

80

502350

1950

1450

1000

450

25

200

259

6

RGC12/1413.7300150

80

502850

2450

1950

1500

450

25

200

256

8

RGC12/1616.5300150

80

503350

2950

2450

2000

450

25

200

328

8

RGC12/22

22.2

300

150

80

50

4350

4350

3450

3000

450

25

220

299

12



Metal Shell

Cat. Ref.

HTA m2

DN

DN1

N1

N2

L

L1

L2

P

S

H

K

B

Baffles

RGC6/1

1

150

50

25

25

1050

800

550

750

25

125

350

104

6

RGC6/1.5

1.5

150

50

25

25

1400

1150

900

1100

25

125

600

124

8

RGC6/2

2.2

150

80

50

25

2000

1650

1350

1600

25

175

1000

144

10

RGC6/32.91508050252500

2150

1850

2100

25

175

1200

138

14

RGC6/44.122580

50

501900

1550

1250

1500

25

175

800

171

8

RGC6/55.2225100

80

502350

1950

1600

1900

25

200

1000

168

10

RGC6/66.6225100

80

502850

2450

2100

2400

25

200

1500

183

12

RGC12/88.5300100

80

502000

1550

1200

1500

25

225

800

223

6

RGC12/1110.8300150

80

502550

1950

1600

1900

25

300

1000

30

6

RGC12/1413.7300150

80

503050

2450

2100

2400

25

300

1500

288

8

RGC12/1616.5300150

80

503550

2950

2600

2900

25

300

2000

279

10

RGC12/22

22.2

300

150

80

50

4550

3950

3600

3900

25

300

2600

270

12

Each Shell and Tube Heat Exchanger is supplied with the following spares:-

  • DN 150 - 5 tubes, 4 plugs, 4 brushes, 4 'O' rings, 1 key

  • DN 225 - 10 tubes, 6 plugs, 6 brushes, 6 'O' rings, 1 key

  • DN 300- 15 tubes, 8 plugs, 8 brushes, 8 'O' rings, 1 key

Orientation of branches, if other than above, should be specified in order.

Following accessories are recommended to use with Shell and Tube Heat Exchanger:

  • PTFE bellows on all nozzles.
  • Pressure relief valve.
  • Supporting Clamps.

SUPPORTING CLAMPS
These clamps are used for horizontal installation of shell and tube heat exchangers (glass shell).

Cat. Ref.

DN

L

H

T

d

RSP6/30

150

150

487

10

30

RSP9/30

225

220

525

10

30

RSP12/30

300

300

565

10

30

 
 


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