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1.3 Specification 

Model         

U D S - 7

5

V P   U S D - 1 8 V P     U D S - 2 5 V P   U D S - 5 0 0 V P

Displacement(50Hz/60Hz)

 

m3/hr 110/130  250/300  330/400  660/800 

CFM 

64.7 / 76.5 

147.1 / 176.5 

194.2 / 235.4 

388.5 / 470.8 

/min 

1833 / 2167 

4167 / 5000 

5500 / 6667 

11000 / 13333

Ultimate pressure 

   without Gas Ballast  

Torr 

0.03 / 0.01 

0.01 / 0.0075 

0.01 / 0.0075 

0.01 / 0.0075 

mbar 

0.04 / 0.013 

0.013 / 0.01 

0.013 / 0.01 

0.013 / 0.01 

Pa 

4.0 / 1.33 

1.33 / 1.0 

1.33 / 1.0 

1.33 / 1.0 

      with Gas Ballast 

Torr 

0.1 / 0.03 

0.05 / 0.01 

0.05 / 0.01 

0.05 / 0.01 

mbar 

0.133 / 0.4 

0.067 / 0.013 

0.067 / 0.013 

0.067 / 0.013 

Pa 

13.3 / 4.0 

6.67 / 1.33 

6.67 / 1.33 

6.67 / 1.33 

Motor power(50Hz/60Hz)

 

      Power Requirement 

kW

3.7

7.5

11

15

      Power Consumption 

kW

1.8/3.0

5.0/6.0

7.0/8.6

10.2/12.8

Rotation(50Hz/60Hz)

 

rpm 2,900/3,500 2,900/3,500 2,900/3,500 2,900/3,500 

Process Connection

 

   Inlet Connection 

JIS(ANSI)

40A(1 ½”) 

50A(2”) 

65A(2 ½”) 

100A(4”) 

   Outlet Connection 

JIS(ANSI)

40A(1 ½”) 

40A(1 ½”) 

50A(2”) 

65A(2 ½”) 

Cooling water

 

   Max. Supply Pressure 

Barg

7

7

7

7

      Pressure Drop 

Bar

1.0

1.0

1.0

1.0

      Flow Rate 

Liter/min

5~10

10~15

10~15

15~20

Lubricant

 

      Gear Oil Type 

Shell T-46 

Shell T-46 

Shell T-46 

Shell T-46 

      Gear Oil Capacity 

Liter

1

1

1.2

2

   Bearing Grease Type 

Mobil 1 

Mobil 1 

Mobil 1 

Mobil 1 

   Grease Capacity 

gram 

25 x 2 = 50 

35 x 2 = 70 

40 x 2 = 80 

65 x 2 = 130 

Seal Type

 

      Suction(Rear) 

Triple Lip Seal 

   Discharge(Front) 

Lip Seal & Mechanical Seal 

Seal Purge Gas

 

   Supply Pressure 

Barg

0.5~1

0.5~1

0.5~1

0.5~1

      Flow Rate 

Liter/min

5~15

5~15

5~20

5~20

Weight(Bare Shaft)

 

kg

190

290

370

580

  Note

 (1) Above listed amount of oil is only for reference, and surplus is available. 

It should be noted that fluorine and mineral type of oil are available. For shipping, we supply 
pure gear oil. 

(2) Above listed amount of Cooling Water is based on water temperature 20

o

C. So, the amount of

water be vary when using After Cooler. Please check with Vendor's approved drawing.

Содержание UDS Series

Страница 1: ...INSTRUCTION MANUAL FOR SCREW TYPE DRY VACUUM PUMP UDS Series U S VACUUM PUMPS LLC Rev Sep 2013...

Страница 2: ...ting with a wrong rotating direction could damage the pump 3 Never operate the pump with suction side open to air 4 Do not carry any maintenance while the pump is connected to the motor SAFETY INSTRUC...

Страница 3: ...ANDLING PROCEDURE 2 1 ASSEMBLY OF PIPING 8 2 2 PIPING WORK 8 2 3 LINKAGE 9 2 4 PREPARATION FOR OPERATION 9 2 5 OPERATION 9 2 6 STOPPING 10 2 7 LUBRICATION 10 3 MAINTENANCE AND INSPECTION 3 1 GENERAL 1...

Страница 4: ...e It has a perfect dynamic balance testing after the Screw is machined Timing Gear The timing gear is the most important part of the screw vacuum pump and it is necessary for turning the Screws with a...

Страница 5: ...40A 1 50A 2 65A 2 100A 4 Outlet Connection JIS ANSI 40A 1 40A 1 50A 2 65A 2 Cooling water Max Supply Pressure Barg 7 7 7 7 Pressure Drop Bar 1 0 1 0 1 0 1 0 Flow Rate Liter min 5 10 10 15 10 15 15 20...

Страница 6: ...r close main suction V V Dry run Cleaning purge This is to remove clean process gases condensed vapors from the pump which are build up inside the pump during the process These process materials build...

Страница 7: ...Choke liners stricken here and they will help support it properly 4 Assure the level by using a level meter Check the levelness on the machined surface The levelness should be limited to 0 5mm in any...

Страница 8: ...inside 4 Supply oil upto the red point of the oil gauge If oil runs short gear and bearing can seize and if oil is too much the temperature will rise excessively and can be cause of gear noise or som...

Страница 9: ...nated specifications 2 6 Stopping 1 Shut off suction side main V V 2 If any corrosive gas has been inhaled introduce the atmosphere from suction side for 20 30 minutes before stopping to clean inside...

Страница 10: ...y sound through stethoscope applied against the casing So make checks from time to time 4 In winter in cold regions whenever the pump is stopped let cooling water drained Freezing of water could damag...

Страница 11: ...Water contamination on Front End cover Clean or not 8 Oil Leak Oil not leaked 9 Lubricant Replacement All Oil Grease in Front end cover Grease cover to be replaced 10 Amount and pressure of Cooling Wa...

Страница 12: ...de of design parameters e g high temperature gases Troubles related to any modification done without approval of the vendor Troubles resulting from mis operation in the opinion of the vendor s service...

Страница 13: ...Replace the Screw and Casing Check the pressure difference between Inlet and Outlet Adjust improper Screw clearance Adjust Timing Gear Make the Side Clearance larger Make the clearance between Screw...

Страница 14: ...cuum level in full vacuum Is it normal Check Electric condition Voltage Amperage in full vacuum Is it acceptable Any abnormal noise Check operation temperature Is it normal Check lubricant color and l...

Страница 15: ...ber or by individual part number Unit each Model Description Quantity UDS 180 250 500 UDS 75 Only Lip 2 Lip Seal 4 4 Speedi sleeve 1 1 Mechanical seal 2 2 Oil seal 1 1 single ball bearing 1 1 Angular...

Страница 16: ...RIALIREMA RK SINOIDESCRIPTION 1 I ST D ICR99114 2 I STEEL 2 I STEEL SS400 SS400 SS400 SS400 SS400 DUCTILE ST D I 35x60 STEEL STEEL 2 DUCTILE 6 ITURCON QTI yIMATERIAL REfvtA RK S MATERIAL xrn I QUANTIT...

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