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Home  >  Pumps > Positive Displacement Pumps > Air-Driven Pumps > High-Purity Air-Operated Double-Diaphragm Pumps

High-Purity Air-Operated Double-Diaphragm Pumps

High-Purity Air-Operated Double-Diaphragm Pumps

  • Unique air valve ensures a positive shift every time—pump will not stall

  • All diaphragms, liquid chambers, and manifolds are constructed
  • of 100% virgin PTFE for long life and high purity
  • Patented valve requires no lubrication or prepacking.
  • Easily access air valve without disassembling the pump

Air-Driven Pumps and other Pumps - Positive Displacement Pumps products are now available to order from the Cole-Parmer Catalog. Click any Air-Driven Pumps category to view all models and products.
Pumps are manufactured under class 1000 clean room conditions to guarantee purity.
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Representative photo only High purity air operated double diaphragm pump 3 25 GPM 1 4 NPT

High-purity air-operated double-diaphragm pump, 3.25 GPM, 1/4" NPT

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 12.3,Max temperature º C 80
EW-74020-00
Usually ships in 9 days.
$1,938.00 USD/EACH

Qty:
Representative photo only High purity air operated double diaphragm pump 6 0 GPM 1 2 ANSI Flange 150

High-purity air-operated double-diaphragm pump, 6.0 GPM, 1/2" ANSI Flange 150

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 22.7,Max temperature º C 80
EW-74020-12
Usually ships in 7 days.
$4,535.00 USD/EACH

Qty:
Representative photo only High purity air operated double diaphragm pump 6 0 GPM 3 8 NPT

High-purity air-operated double-diaphragm pump, 6.0 GPM, 3/8" NPT

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 22.7,Max temperature º C 80
EW-74020-10
Usually ships in 7 days.
$4,177.00 USD/EACH

Qty:
Representative photo only High purity air operated double diaphragm pump 15 0 GPM 3 4 ANSI Flange 150

High-purity air-operated double-diaphragm pump, 15.0 GPM, 3/4" ANSI Flange 150

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 56.8,Max temperature º C 80
EW-74020-22
Usually ships in 7 days.
$6,411.00 USD/EACH

Qty:
Representative photo only Repair parts kit for high purity air operated double diaphragm pumps 74020 20 74020 21 and 74020 22

Repair parts kit for high-purity air-operated double-diaphragm pumps 74020-20, 74020-21, and 74020-22

Product Type Accessories for Air-Powered Diaphragm Pumps,Model K20-F
EW-74020-29
Usually ships in 7 days.
$686.00 USD/EACH

Qty:
Representative photo only Repair parts kit for high purity air operated double diaphragm pumps 74020 10 74020 11 and 74020 12

Repair parts kit for high-purity air-operated double-diaphragm pumps 74020-10, 74020-11, and 74020-12

Product Type Accessories for Air-Powered Diaphragm Pumps,Model K10-F
EW-74020-19
Usually ships in 7 days.
$378.00 USD/EACH

Qty:
Representative photo only High purity air operated double diaphragm pump 15 0 GPM 3 4 NPT

High-purity air-operated double-diaphragm pump, 15.0 GPM, 3/4" NPT

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 56.8,Max temperature º C 80
EW-74020-20
Usually ships in 7 days.
$6,028.00 USD/EACH

Qty:
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