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WELCH-ILMVAC 2019B Owner's Manual

Dry vacuum pump
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WELCH-ILMVAC
OWNER'S MANUAL FOR
DRY VACUUM PUMP
MODEL: 2019
Model 2019B
Model 2019C
WARNING
Be sure to properly identify intake and exhaust before using the pump
See Section 3.15
CAUTION
Do not pump liquids with the pump. Pumping liquids will cause the pump
to stop working
Welch-Ilmvac
5621 W. Howard Street
Niles, IL 60714
Phone: (847) 676-8800 (Technical Support)
Fax: (847) 677-8606
Part No. 642913
E-Mail: gdwelchvacuum@gardnerdenver.com
Printed in USA
Web-Page: www.welchvacuum.com

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  • Page 1 WELCH-ILMVAC OWNER’S MANUAL FOR DRY VACUUM PUMP MODEL: 2019 Model 2019B Model 2019C WARNING Be sure to properly identify intake and exhaust before using the pump See Section 3.15 CAUTION Do not pump liquids with the pump. Pumping liquids will cause the pump...
  • Page 2 INSTRUCTION WARNING AND CAUTION PLEASE READ BEFORE OPERATION While reading your manual, please pay close attention to areas labeled: WARNING AND CAUTION. The description of each is found below. WARNING Warnings are given where failure to observe instruction could result in injury or death to people CAUTION Cautions are found where failure to observe the instruction could result...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Section Page Section 01 - Safety Information 1.10 Caution: to prevent injury 1.20 Caution: to reduce risk of electrical shock 1.30 Warning: to reduce risk of electrocution 1.40 Warning: to reduce risk of explosion or fi re Section 02 - Optional Accessories 2.10 Optional Accessories...

  • Page 4: Section 01 - Safety Information

    Section 1: SAFETY INFORMATION 1.10 Caution: To Prevent Injury... 1.11 Never operate this product if it has a damaged cord or plug. If it is not working properly, has been dropped, damaged or has fallen into water, please return the product to a Welch service center for examination and repair.

  • Page 5: Warning: To Reduce Risk Of Electrocution

    1.30 Warning: To Reduce Risk of Electrocution... 1.31 Do not use this product in or near area where it can fall or be pulled into water or other liquids. 1.32 Do not reach for this product if it has fallen into liquid. Unplug immediately. 1.33 Never operate this product outdoors in the rain or in a wet area.

  • Page 6: Section 03 - Installation

    Section 3: INSTALLATION 3.10 Environmental Conditions The Pump is rated for indoor use only. Maximum altitude 2000 meters. Operating temperature range 10 C to 40 C. Maximum relative humidity of 80% for temperatures up to 31 decreasing to 50% at 40 C.

  • Page 7: Electrical Power

    WARNING Never block the discharge port. If the exhaust is blocked, pressure will build-up in the pump which can lead to the pump head bursting creating the potential of serious injury. Remove plug from exhaust port WARNING Remove plug from exhaust port before operating Properly identify the intake and exhaust of the pump Exhaust - Muffl...

  • Page 8: Traps

    3.17 Traps 3.18 When to Use a Liquid Trap When pumping gases or low vapor loads, a trap is not necessary unless you want to capture vapors evolved from the process. When a heavy load of water or organic vapor is evolved from the vacuum process, condensation of vapor in the pump mechanism may occur.

  • Page 9: Section 04 - Operation

    Section 4: OPERATION 4.10 Starting a Welch Dry Vacuum Pump Before attaching the pump to a system it is well to familiarize yourself with the function and action of the pressure vacuum pump which you have acquired. Review the power requirements as described in Section 3.16.

  • Page 10: Section 05 - Maintenance

    Section 5: MAINTENANCE 5.10 General Maintenance Welch Vacuum units are 100% oil-free. All bearings are sealed and permanently lubricated. Lubrication should not be attempted. The units are built for duty operation just like a water aspirator, but with the quietness, performance and durability of a diaphragm. 5.11 Diaphragm Replacement WARNING...

  • Page 11: Specifi Cation

    DO NOT CONNECT THE UNIT TO A POWER SOURCE; review the assembly procedure for possible error. Section 6: SPECIFICATIONS 6.10 Specifi cation Welch Model 2019B-01 2019C-02 Free air Displacement CFM (L/min) @ 60Hz 1.3 (36) 1.3 (36) CFM (L/min) @ 50Hz 1.1 (30)

  • Page 12: Exploded View And Kits

    Section 7 - DRAWING 7.10 Exploded view and kits. Diaphragm replacement kit 2019K-01. Pump head and rebuild kit 2019K-03. Item Description 2019K-01 2019K-03 2500K-04 Diaphragm, Buna N Diaphragm liner, PTFE Diaphragm Hold Down Plate Valve Plate Assembly O-Ring Gasket, Head *Pump Head Assembly Includes item 4 and 5 Head Screws Handle Screws...

  • Page 13: Section 08 - Warranty

    The liability of Welch-Ilmvac under this warranty is limited to servicing, adjusting, repairing or replacing any unit or component part which in the judgment of Welch-Ilmvac has not been misused, abused or altered in any way causing impaired performance or rendering it inoperative.
  • Page 14 Welch-Ilmvac 5621 W. Howard Street Niles, IL 60714 Phone: (847) 676-8800 (Technical Support) Fax: (847) 677-8606 E-Mail: gdwelchvacuum@gardnerdenver.com Web-Page: www.welchvacuum.com Copyright© 1997-2007 Gardner Denver Welch Vacuum Technology, Inc. Welch is registered trademarks of Gardner Denver...

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2019c

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