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Your present location:Products >> DP-type oil-free dry screw vacuum pump >> DP-type Oil-free Equal Pitch Dry Screw Vacuum Pump
  • Name: DP-type Oil-free Equal Pitch Dry Screw Vacuum Pump
  • Number: 001
  • Time: 2016-03-16

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Overview

Dry Screw Vacuum Pump is composed of a pair of screw rotors meshing in the opposite and synchronous way in the pump casing to form the suction and discharge operations.By using the maintenance-free technology,our screw vacuum pump has fewer problemsabout the difficulty and sealing liquid in the pump housing,screw vacuum pumps can be used to recycle many condensable gases.This featurecan solve the pollution and eco-issues of many vacuum systems such as the steam-jet pumps,slide valve pumps,rotary vane pumps and liquid ring pumps,meanwhilethe recycled materials can create additional economic benefits for clients.
 

Main charateristics

●Wide pumping rate range with direct discharge to Atm.and high ultimate vacuum of 5 Pa with single stage design.

●Easy cleaning and maintenance with N2 purging.

●High strength and stability of screw rotor made of ductile iron.

●No contact and friction between screw rotors with no lubricants and no any waste emission and low energy consumption.

●Anti-corrosive coating wet surfaces fitting for the chemical and pharmaceutical industries.

●Precise dynamic balance of screw rotors with smooth operation having lower noise,smaller vibration and longer service life.

 

Specifications

Description UNIT DP35 DP70 DP150 DP280 DP390 DP550 DP650 DP800 DP1100
Displacement m3/Hr 35 70 150 280 330 550 600 800 1100
L/S 10 19 42 78 92 153 167 222 306
Ultimate pressure Torr 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04
Pa 4 4 4 4 4 4 4 5 5
Motor power KW 2.2 4 5.5 7.5 11 15 22 30 37
Rotating speed RPM 2900 2900 2900 2900 2900 2900 2900 2900 2900
Suction flange mm DN40 DN40 DN40 DN80 DN80 DN100 DN100 DN100 DN125
Discharge flange mm DN25 DN30 DN30 DN40 DN40 DN50 DN65 DN65 DN80
Cooling water Max.Press barg 2~4 2~4 2~4 2~4 2~4 2~4 2~4 2~4 2~4
Cooling water flow rate L/min 4 4 6 6 6 8 8 8 8
Cooling water tem 5~35 5~35 5~35 5~35 5~35 5~35 5~35 5~35 5~35
Noise level dB ≤70 ≤70 ≤75 ≤75 ≤75 ≤80 ≤80 ≤85 ≤85
Dimension mm

745*450

*550

953*520

*600

973*600

*680

1123*640

*680

1357*640

*680

1516*780

*800

1609*780

*800

1786*840

*930

2250*880

*1100

Weight Kg 160 195 230 253 450 523 650 1050 1500

 

Section View

① Suction

② Discharge

③ Cooling Water Jacket

④ Screw Rotor

⑤ Oil Tank

⑥ Gas Gallery

⑦ Synchronous Gears

⑧ Bearing

⑨ Mechanical Sealing

⑩ Frame Sealing

 

 

 

Performance curve

 

DIMENSIONS

Model A A1 A2 A3 A4 B B1 ΦA DN1 DN2 H H1 H2 ΦB
DP35 899 582 527 47 214 500 210 20 40 25 423 79.5 584 Φ14
DP70 1006 629 574 47 258 519 236 20 40 30 445 87 592 Φ14
DP150 953 613 483 30 275 619 270 22 40 30 415 68 573 Φ14
DP280 1204 720 543 36 320 640 340 32 80 40 526 100 680 Φ14
DP390 1257 757 584 46 320 645 340 32 80 40 526 90 680 Φ14
DP550 1440 879 673 46 410 780 436 42 100 50 607 140 930 Φ18
DP650 1545 909 697 51 410 780 436 42 100 65 647 120 907 Φ18
DP800 1747 1011 790 51 450 961 498 55 125 80 740 150 1150 Φ22
DP1100 2250 1430 1241 51 750 880 498 55 110 75 790 180 1100 Φ22
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Please contact us via email if you have interest in our products!
18006168180@elmvac.cn
 

Contact Us

JIANGYIN ELMVACUUM EQUIPMENT CO.,LTD.

Add:1-2 Longgang Road,Lingangxincheng,Jiangyin
Mobile: +86-15061560080
Tel: +86-510-86607775  +86-510-86606771
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E-mail: 18006168180@elmvac.cn
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