The business of Welch is serving your application needs. For over 100 years, Welch has been supplying pumps for your vacuum applications. Welch has developed an in-depth knowledge from these years of experience on selecting the correct vacuum pump mechanism and modifying the vacuum mechanism to meet particular application needs. We employ vacuum belt-drive and direct-drive vacuum pumps, dry (oil-free/oil-less) PTFE diaphragm pumps and dry WOB-L ® piston pumps technology. In line with our goal of meeting your pump application needs, we have recently added peristaltic liquid pumps and accessories.
Complete 2008/2009 welch pumps catalogue (1.56MB)
Gardener Denver - welch pumps summary (272KB)
2008/2009 Welch Pumps catalogue breakdown:
Chemistry lab (729KB)
- Rotary Evaporation (p2-5)
- Vacuum Manifolds (p6,7)
- Filtration (p8)
- Vacuum Chamber / Roughing (p8)
- Glove Boxes (p9)
- Vacuum Ovens (p9)
- Freeze Drying (p10)
Life science lab (673KB)
- Laboratory Automation (p11)
- Gel Dryer / Concentrator (p12)
- Centrifugal Concentrators (p13)
- Cell Culture, Aspiration (p14-15)
- Aeration (p16)
- Filtration (p16-17)
- Vacuum Ovens (p17)
- Freeze Drying / Lyophilizing (p18)
- Glove Boxes (p18)
- Field Filtration / Sampling (p19)
- Fluid Transfer - Peristaltic (p20,21))
Vacuum pumps (438KB)
- Chemical Duty PTFE Dry Vacuum Pumps (oil free) (p22,23)
- Standard Duty Dry Vacuum Pumps (oil free) (p24,25)
- Compact Direct-Drive Pumps (p26,27)
- DuoSeal® Rugged Bely Drive Pumps (p28,29)
- CHEMSTAR® Pumps and Accessories for Corrosive Gases (p30,31)
Components, accessories, parts (675KB)
- System Connectors & Accessories, Illustrated (p32)
- System Connectors and Tubing (p33-35)
- Foreline Traps (p36,37)
- Exhaust filters (p38)
- Controllers (p39)
- Regulators and Operators (p40)
- Gauges (p41)
- Pump Oil (p42)
- Hose Adapters (p42)
- Service Kits (p43-44)
Reference information (340KB)
- Directory by Type, Flow, & Vacuum (p45,46)
- Pumping Speed Curves (p47)
- Index of Catalog Numbers (p48)