Welch Vacuum

Welch has been supplying vacuum pumps for over 100 years and is a global producer of vacuum pumps, systems, and components.
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Welch Vacuum pumps and accessories group

Vacuum Pumps | A/C Refrigeration and Liquid Pumps | Industrial Pumps | OEM Oil-Free Pumps | Vacuum and Liquid Accessories

Welch Vacuum 2019 and 2014 diaphragm pumps
Vacuum Pumps
  • DryFast collegiate diaphragm pumps - types: 2014
  • DryFast diaphragm pumps - types: 2034, 2044, 2047; Ultra: 2032, 2042
  • Vacuum filtration diaphragm pump - types: 2019
  • Duo Seal pumps - types: 1400, 1402, 1399, 1405, 1376, 1397, 1374
  • Welch Self-cleaning vacuum systems - types: 23026, 2027, 2028
  • GEM® direct drive gear pumps Rotavap 8890
  • Freeze dryer pumps
  • WOB-L pumps - types: 2511, 2522, 2534, 2546, 2561, 2567, 2581, 2585, 2511, 2515
  • Direct drive pumps - types:8907, 8912, 8917, 8920, 8925
  • ChemStar pumps - types: 1400N, 1402N, 1376N
  • Gelmaster pumps - types: 1426
  • Gemini pumps - types: 2050, 2060
  • High capacity diaphragm pumps - types: 2067, 2064, 2062, 2054, 2052
Welch DuoSeal 1397 belt driven vacuum pump
A/C Refrigeration and Liquid Pumps
  • Peristatic 3100 - analog 3100
  • Peristatic 3200 - digital 3200
  • Capture pump refrigerant recovery CRR
  • Duo Seal two stage refrigeration pumps - types: 1376B-46, 1397B-46
  • Portable refrigeration servicing pumps - types: 8920A-46, 8925A-46
  • ChemStar pumps - types: 1376N, 1402N
Welch ChemStar 2071 oil-free vacuum system
Industrial Pumps
  • Duo Seal pumps - types: 1400, 1405, 1402, 1374, 1397
  • Oil-free industrial vacuum systems - types: 8150B-30
  • ChemStar dry oil-free deep vacuum systems - types: 2070




Welch Vacuum WOB-L 2561 and 2581 piston pumps
OEM Oil-Free Pumps
  • WOB-L pump 2561
  • WOB-L pump 2567
  • WOB-L pump 2581
  • WOB-L pump 2585
Welch 1420H-14 cold trap and DuoSeal vacuum pump oil
Vacuum and Liquid Accessories
  • Cold traps
  • Bank-off flanges
  • Duo Seal vacuum pump oil - sizes: liter, gallon, 5 gallons
  • Premium oil for direct drive vacuum pumps - sizes: liter, gallon, 5 gallons
  • ChemStar / Harsh chemical vacuum operation - sizes: liter, gallon, 5 gallons
  • Centering rings - ISO fittings: NW 16, NW, NW 40
  • Connectors - ISO fittings: elbow NW 16, elbow NW 25, NW 40 - NW 25

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