Metal Diaphragm Pumps | McMaster-Carr

Filter by

Housing Material

Stainless Steel

Discharge Pipe Size

For Use With

Ammonium Hydroxide

Deionized Water

Ethylene Glycol

Isopropyl Alcohol

Lacquer Solvents

Lacquer Thinner

Methanol (Methyl Alcohol)

Intake Pipe Size

Maximum Flow Rate

Less than 25 gpm

25 gpm to 49 gpm

50 gpm to 99 gpm

100 gpm to 199 gpm

200 gpm or greater

Power Source

Diaphragm Material

Pump Type

Double Diaphragm

Positive Displacement

Maximum Temperature

Less than 150° F

175° F to 199° F

200° F to 249° F

250° F or greater

Discharge Connection

Intake Connection

Maximum Flow Rate @ 120 Feet of Head

Maximum Discharge Pressure

Priming Type

Maximum Feet of Head

100 ft. to 199 ft.

200 ft. to 249 ft.

250 ft. to 299 ft.

300 ft. or greater

Discharge Tube OD

Discharge Location

Air Connection Pipe Size

Voltage

Flow Rate

Less than 25 gpm

25 gpm to 49 gpm

50 gpm to 99 gpm

100 gpm to 199 gpm

200 gpm or greater

Minimum Temperature

Intake Location

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

How can we improve?

91 Products

Double Diaphragm Pumps

316 Stainless Steel Air-Powered Double Diaphragm Pumps for Chemicals, Fuel, and Flammable Liquids

316 Stainless Steel Air-Powered Double Diaphragm Pumps for Chemicals, Fuel, and Flammable Liquids

A PTFE diaphragm resists acids, alkalies, and flammable liquids

Aluminum Air-Powered Double Diaphragm Pumps for Water and Chemicals

Aluminum Air-Powered Double Diaphragm Pumps for Water and Chemicals

A Santoprene diaphragm resists cracking for a long service life

Aluminum Air-Powered Double Diaphragm Pumps for Oil, Chemicals, and Fuel

Aluminum Air-Powered Double Diaphragm Pumps for Oil, Chemicals, and Fuel

Compatible with oil, fuel, and chemicals such as mineral spirits and xylene

Air-Powered Double Diaphragm Pumps for Food and Beverage

Air-Powered Double Diaphragm Pumps for Food and Beverage

Made of FDA listed materials for use with food and beverage

Aluminum Air-Powered Double Diaphragm Pumps for Oil and Chemicals

Aluminum Air-Powered Double Diaphragm Pumps for Oil and Chemicals

Resist oil and chemicals such as isopropyl alcohol and deionized water

Aluminum Air-Powered Double Diaphragm Pumps for Oil, Chemicals, and Large Solids

Aluminum Air-Powered Double Diaphragm Pumps for Oil, Chemicals, and Large Solids

Stand up to large solids, oil, and chemicals such as isopropyl alcohol and deionized water

Aluminum Air-Powered Double Diaphragm Pumps for Fuel and Flammable Liquids

Aluminum Air-Powered Double Diaphragm Pumps for Fuel and Flammable Liquids

UL listed for pumping petroleum products and rated for use with flammable liquids

Aluminum Air-Powered Double Diaphragm Pumps for Fuel, Oil, and Large Solids

Aluminum Air-Powered Double Diaphragm Pumps for Fuel, Oil, and Large Solids

The fluoroelastomer diaphragm withstands higher temperatures than neoprene

316 Stainless Steel Air-Powered Double Diaphragm Pumps for Oil, Chemicals, Fuel, and Large Solids

316 Stainless Steel Air-Powered Double Diaphragm Pumps for Oil, Chemicals, Fuel, and Large Solids

Resist a variety of harsh chemicals such as phosphoric, nitric, and sulfuric acids

Other Products

Drum Pumps

Draw liquids out of drums, pails, and other small containers

Pump Pulsation Dampers

Pump Pulsation Dampers

Absorb vibration from air-powered pumps to reduce wear and protect inline regulators and gauges

Diaphragm Pumps

Diaphragm Pumps

Draw liquids in and push them out for spraying, draining, and washdowns

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)