Sealmatic U184 Single & Dual Seals · Cartridge construction 5. Designed for top entry vessels 6. Rotary unit with multiple springs 7. Construction with integrated bearing also available

U184 Single & Dual Seals

Performance Capabilities

DIN 28138 T2

Sizes: d = 40.... 220 mm (1.575"....8.625")3

Single seals:

Pressure: p = vacuum ... 6 bar (87 PSI), 1

p = pressure less3

Temperature: t * = -40 °C ... +150 (250) °C 1

(-40 °F ... +302 (482) °F)Double seals:

Pressure: p = vacuum ... 16 bar (232 PSI), 1

p = max. 18 bar (261 PSI)3

Temperature: t * = -40 °C ... +200 (350) °C 1

(-40 °F ... +392 (662) °F)Speed = 0 ... 5 m/s (0 ... 16 ft /s)* Higher or lower temperatures on request.

Typical Industrial Applications

AgitatorsChemical industryNon-toxic media with single sealPharmaceutical industryReactorsToxic media with double seal

Standards

FDADIN 28136 T2 (for steel vessels)DIN 28141 (flange connection for steel vessels)DIN 28154 (shaft end for steel vessels)

Notes

Options:Cooling or heating flangeLeakage drain, flush or heating flangeLeakage drain or flushPolymerization barrier, leakage drain or flush

Clamping set Shrink disk Clamping ringwith pin

Clamping ring

Torque Transmissions

79

Product Description1. Single and Dual seal configuration2. Unbalanced design3. Independent of direction of rotation4. Cartridge construction5. Designed for top entry vessels6. Rotary unit with multiple springs7. Construction with integrated bearing

also available

Technical Features1. Available with or without floating

bearing2. Double seals can be applied at higher

pressure and rotating speed3. Suitable for standardizations4. Rugged design to ensure long term

reliability and operating life5. Seals are assembled in cartridge

construction for easy fitment 6. Over all connecting dimensions are

tailor made to customer's specification7. The seal design is unique as it closes

due to the hydraulic product pressure as well as overlaying barrier pressure

Agitator Seals - Liquid Lubricated

Note: The item numbers as depicted above are based on our technical experience and knowledge and are placed in the chronological order of their assembly procedure.

l 2L

2l 1

8.5

d 0

d4 e8

k

d1

d31)

h8

l 1l 2

2xM1

d71)

h6

1.5

G

C

B

A

2xM2

l w

15

11

14

2

6

d 2

34

0

30

a

Installation, Details, Options

OptionCooling flange, can be used alternatively as a heating

o oflange (t = 350 C (662 F).max.

OptionLeakage drain, can be used alternatively as a flush or as a heating flange.

OptionLeakage drain, can be used alternatively as a flush.

OptionPolymerization barrier, can be used alternatively as a leakage drain or a flush.

Design Variations

All types of the U184 range available for unstepped shafts (all diameters).

Seal identification: U154... Customized design or e.g. different drives (torque transmissions) are available.

For reasons of standardization, the supply connections of single seals are matched to those of the double seals (in deviation from DIN 28138 T3).

Barrier fluid resp. quench IN

Barrier fluid resp. quench OUT

Drainage

Leakage drain G1/8"

Cooling IN G3/8"

Cooling OUT G3/8"

Grease

Flush

Temperature metering

A

B

C

D

E

F

G

S

T

Supply connectionsDesignation and position acc. to DIN 28138�T3.

U154

Single Seals Variants U184KSingle seal

U184KLSingle seal with integrated floating bearing.Operation of single seals only with pressure less quench.

1)�Shaft diameters d �and d �to DIN 281543 7

2)�Shaft step to DIN 28154inch size available from size 1.500 to 8.625Note: Additional technical & dimensional information will be provided on request.

Dimensional Data

d31) d7

1) d1 nxd 2 d4 d0 k L 1 L 2 L w2) l1 l2 a M1 M2 A, B

40

50

60

80

100

125

140

160

180

200

220

38

48

58

78

98

120

135

150

170

190

210

175

240

240

275

305

330

395

395

445

445

505

4X18

8X18

8X18

8X22

8X22

8X22

12X22

12X22

12X22

12X22

16X22

110

176

176

204

234

260

313

313

364

364

422

90

135

135

155

190

215

250

265

310

310

340

145

210

210

240

270

295

350

350

400

400

460

87

89

93.5

104.5

109

110

124

127.5

132.5

137.5

149.5

136

149

156

189

190

205

222

219.5

230

237.5

249.5

143

148

158

168

178

203

208

213

233

243

263

15

17

17

20

20

20

20

25

25

25

25

28

28

28

34

34

40

40

40

45

45

50

122

157

168

203

228

268

285

302

332

352

381

M12

M12

M12

M16

M16

M20

M20

M20

M24

M24

M24

M16

M16

M16

M20

M20

M20

M20

M20

M20

M20

M20

G3/8

G3/8

G3/8

G1/2

G1/2

G1/2

G1/2

G1/2

G1/2

G1/2

G1/2

Double Seals Variants U184K-DDouble seal U184KL-DDouble seal with integrated floating bearing.These seals are designed to be self-closing on the product side, i.e. they will remain closed even with pressure variations or a pressure reversal. Operation is optionally the same as for the single version

(p = 6�bar (87�PSI) ormax

�p = 6�bar at p �>�p ).max 1 3

In view of the mechanical seal on the atmosphere side it can be used as a buffer pressurized double seal

p �=�16�bar (232�PSI).1

Dimensions in millimeter

80

F, G

A

CBD

E, G, T

M2

M1

S

DD

EFl s

EF

l 5 D

15

11

14

2

7

6

13

12B

C

G

A

1