Shanghai Vowa Equipment Technology Co. LTD    Discharge Pumps    DLK Series Polymer Melts Gear Pump

DLK Series Polymer Melts Gear Pump

 

Vacuum Reactor Discharge Pump—— Medium And Low Pressure, Channel Heating

 

DLK Series Polymer Melts Gear Pump
DLK series melt gear pumps are suitable for the reaction transportation of high temperature and high viscosity polymer melts that require low output pressure and large flow, such as resin, chemical fiber and other industries. They are generally installed in the lower part of the reactor and used as a feed pump. This series of melt gear pumps have good self-priming performance and can be used for conveying and pressurizing polymer materials under vacuum reaction conditions.


The main materials that can be conveyed by the melt gear pump are:
Polymer melt
PET PBT PTT
PA6 PA66 PA12
PE LDPE LLDPE HDPE HMWPE
PP EVA PB
PB PS HIPS ABS SAN
PC PEK PMMA POM
TPU PLA PBS


Other stock solutions, solutions, glues, oligomers, prepolymers, etc. in the polymer material industry;
It can also be used to transport hot melt adhesives, asphalt, paints, adhesives, pharmaceuticals, food, grease, fuels, oils, dyes, coatings, lubricants, polyols and other materials that do not contain particulate impurities.


Technical data:
Viscosity 1E-330000Pa•s 130,000,000cP
Suction side pressure :(-0.05-0.09MPa)~4MPa
Discharge side pressure 07MPa
Differential pressure 5MPa
Temperature ≤350℃
Heating Fully Jacketed
HT medium pressure ≤1.6MPa


Installation method
DLK series melt gear pumps are generally installed at the bottom of the reactor and are driven by a motor + reducer + universal coupling. The melt gear pump is a positive displacement forced delivery pump. The pump output flow can be adjusted by adjusting the pump speed. It is recommended Using frequency conversion speed regulation, can realize the nearly linear flow output of the gear pump.

Main structure of gear pump:
Rotor type: helical or spur gear
Heating method: Heat medium heating


Sealing structure:
■ Dynamic melt seal + packing seal
■ Mechanical seal
■ Dynamic seal with cooling melt
■ High temperature resistant packing seal


The main structure of melt gear pump:
Pump casing: stainless steel/alloy steel/corrosion-resistant alloy
Gear: Nitrided steel/tool steel/stainless steel + coating/corrosion resistant alloy
Bearing: tool steel/copper alloy/stainless steel + coating/corrosion resistant alloy


Pump size and Technical data

Model

cc/r

Inlet
pres.
Mpa

Outlet
pres.
MPa

   Max. flow rate     m3/h

Temp

Low
viscosity material

Medium
viscosity material

High
viscosity material

Ultra high
viscosity
material

50Pa.s

50200Pa.s

2002000Pa.s

2000Pa.s

DLK-5

5

Vacuum

-0.094.0

≤10.0

0.041

0.027

0.019

0.012

≤350℃

DLK-10

10

0.081

0.054

0.038

0.024

DLK-20

20

0.162

0.108

0.076

0.049

DLK-32

32

0.259

0.173

0.121

0.078

DLK-50

50

0.405

0.270

0.189

0.122

DLK-75

75

0.527

0.365

0.243

0.162

DLK-100

100

0.702

0.486

0.324

0.216

DLK-160

160

1.123

0.778

0.518

0.346

DLK-200

200

1.404

0.972

0.648

0.432

DLK-250

250

1.620

1.080

0.675

0.473

DLK-355

355

2.3

1.5

0.9

0.7

DLK-500

500

3.2

2.2

1.2

0.9

DLK-750

750

4.9

3.2

1.8

1.4

DLK-1000

1000

5.4

3.8

2.2

1.9

DLK-1200

1200

6.5

4.5

2.6

2.3

DLK-1600

1600

8.6

6.0

3.5

3.0

DLK-2000

2000

10.8

7.6

4.3

3.8

DLK-2500

2500

10.8

8.1

4.7

4.1

DLK-3150

3150

13.6

10.2

6.0

5.1

DLK-4000

4000

13.0

10.8

7.6

6.5

DLK-6300

6300

20

17

10

9

DLK-8000

8000

22

17

13

12

DLK-9000

9000

24

19

15

13

DLK-12000

12000

32

26

18

16

DLK-18000

18000

49

39

27

24

DLK-25000

25000

68

54

38

34

DLK-38000

38000

103

82

57

51

DLK-54000

54000

146

117

82

73

DLK-80000

80000

216

173

121

108

Please consult the manufacturer for larger or smaller specifications