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Section 2: INSTALLATION

 
2.10   Introduction

 

This manual has been compiled not only for the care and maintenance of the Welch Dry Vacuum System

  

now in your possession, but as a helpful reference and guide to prevent many problems which can occur 

 

if used improperly.

2.11    Unpacking

 

Carefully remove the Dry Vacuum System from the shipping carton.  Preserve all paperwork for future 

 

reference.  If damage has occurred from shipment a claim must be fi led with the carrier immediately; 

 

preserve the shipping carton for inspection by the carrier.  If you are required to communicate with your

  

dealer or Welch Vacuum be sure to include your order numbers for quick identifi cation.  Do not return 

 

the system to the factory without fi rst calling for a returned goods number. Call (847) 676-8800

2.12    System Mounting

 

Rubber feet are attached to the pump.  Rubber feet are excellent for applications involving a 

 

semi-fl exible surface such as a bench top; they help to isolate noise and eliminate creeping. 

2.13   System Location and Enviromental Condition

 

The Dry Vacuum System should be located preferably in a clean, dry and well ventilated area.  Please 

 

be sure not to block the ventilation ports located on the metal shell.  The pump should be placed where 

 

the surrounding temperature remains between 10°C and 40°C (50°F and 104°F).  Always check to insure

 

the location chosen is protected from direct or indirect moisture contact.  The pump should be located as

  

closely to its system in order to utilize it most effi

  ciently. The pump is rated for indoor use only. 

 

Maximum altitude 2000 meters. Operating temperature range 5°C to 40°C. Maximum relative humidity 

 

of 80% for temp. up to 31°C decreasing to 50% at 40°C. Rated for ±10% of supply voltage. 

 

Pollution Degree2, Installation Category II.

 

 
 
 
 
 
 
 
 

2.14    Inlet and Outlet Provisions

 

A inlet hose barb which accepts ¼” I.D. hose makes it easy to connect the system to your concentrator, 

 

rotary evaporator or gel dryer.  Since the vacuum system operates in the viscous fl ow regime, the small 

 

diameter of the hose will generate minimal conductance loss.  For best results, Welch recommends the 

 

length of the tubing between the pump and the apparatus be kept as short as possible.  Hose clamps 

 

should be used to hold the hose in place.

 

The hose barb in the outlet port of the pump accepts ¼” ID hose.  A vent line can be attached to the 

 

outlet hose barb which allows gases and vapors pumped through the pump to be piped to a fume hood.  

 

Be sure to call Welch technical service prior to start-up at (847) 676-8800 if you have any questions.

 
 

WARNING

Don’t operate this pump in an atmosphere 

containing flammable or explosive gases or vapors.

WARNING

The motor is thermally protected and will automatically 

restart unexpectedly when the overload device resets.

WARNING

Never Block The Outer Port.  If the outlet is blocked, pressure will 

      buildup in the pump which can lead to the pump head bursting 

      creating the potential of serious injury. 

Remove plug from outer port.

Summary of Contents for Welch 2580B-01

Page 1: ...0B 50 2580C 50 2585C 02 2585C 05 2585C 50 2585C 55 2585C 57 Warning Not recommended for pumping acid base or organic vapors or gases Warning Be sure to properly identify intake and discharge before us...

Page 2: ...ons are found where failure to observe the instruction could result in damage to the equipment associated equipment and process These units con rm to the SI International system of units of measuremen...

Page 3: ...ions 3 01 Speci cation Chart Section 04 Motor Power Speci cations Features 4 01 Motor Speci cation Chart 4 02 Changing the Voltage Settings for Global Motor Option on A Models 4 03 Changing the Voltag...

Page 4: ...ion II 5 I 20 CAUTION To reduce risk of electrical shock I 21 Do not disassemble Disassembly or attempted repairs if accomplished incorrectly can create electrical shock hazard Refer servicing to qual...

Page 5: ...or indirect moisture contact The pump should be located as closely to its system in order to utilize it most e ciently The pump is rated for indoor use only Maximum altitude 2000 meters Operating tem...

Page 6: ...rrected 2 23 Identi cation Symbols 2 24 Grounding Instructions This product should be grounded In the event of an electrical short circuit grounding reduces the risk of electric shock by providing an...

Page 7: ...monly used to indicate vacuum level when operating in the rough vacuum range 0 to 29 9 Hg Dial vacuum gauges give negative pressure that is pressure below atmospheric The reference point for the gauge...

Page 8: ...s if you have droplets coming out of the exhaust port If you see droplets of water Welch recommends you use a cold trap to capture the water before entering the pump or dilute the water vapor stream b...

Page 9: ...suspected area with a thick soap solution Escaping air will produce soap bubbles 3 14 Operating Pressure Range Model 2581 Dry Vacuum Pumps are designed to be run from atmospheric to their maximum vacu...

Page 10: ...n for the condition of the pump is the determination of its maximum vacuum capability This can be accomplished by blocking of the intake and reading the vacuum level on the gauge See Section 2 8 5 11...

Page 11: ...30 5 12 0 30 5 Shipping Weight lbs 27 5 27 5 Kg 12 5 12 5 Shipping Dimensions L in Inches cm 19 5 49 5 19 5 49 5 W in Inches cm 20 5 52 0 20 5 52 0 H in Inches cm 16 0 40 6 16 0 40 6 Catalog Number C...

Page 12: ...12 6 11 Pumping Speed Curves...

Page 13: ...13 6 12 Dimensional Drawing Dimensions of Pump Model 2580 2585 inches A B C D E F G H I J K L M N 12 5 11 69 7 37 5 25 10 5 8 5 9 5 8 75 3 06 0 75 4 62 0 75 4 5 6...

Page 14: ...0K 04 1 2 Note 1 Connecting Rod Assembly 2 2 2 Note 1 O Ring Valve Plate 2 2 3 2 Note 1 O Ring Connector Tube 4 4 4 1 Note 1 Head Screw 8 5 2 Note 1 Rubber Suction Feet 4 6 2 Note 1 Valve Plate Assemb...

Page 15: ...maximum vacuum readings from day to day The preset vacuum level may be adjusted by opening or closing the ori ce A small leak through the ori ce is provided to allow easy restart of the pump if you a...

Page 16: ...erative No other warranties are expressed or implied The method of executing this warranty servicing adjusting repairing or replacing shall be at the discretion of Gardner Denver Welch Vacuum Technolo...

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