Cole-Parmer Datasheets for Diaphragm Pumps

Diaphragm pumps use a diaphragm that moves back and forth to transport liquids from one place to another.
Diaphragm Pumps: Learn more

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Product Name Notes
• 6, 12, or 24 VDC driven diaphragm pumps for liquid or gas applications • Run pump heads as separate entities or in series/parallel configurations • Oil free pumps<emdash>contamination free...
• Accurate volumetric dispensing of 4 microliters to 250 microliters • Positive shut with pressures less than 3 psi (except 73120-66 and -68 which has a 1 psi shut-off) •
• Built-in pressure demand switch shuts pump off at maximum pressure • Three-chamber design provides smooth, pulse-free flow • Flexible diaphragm design allows pump to run dry without damage. •
• Chemical resistance prevents contamination of your pumped medium • Quiet, reliable, accurate, and virtually pulse-free • Pumps can run dry continuously without damage • Built-in overpressure protection prevents damage...
• Complete oil-free vacuum system for rotary evaporators • Self-cleaning purge extends diaphragm life • Integral vacuum regulator • Complete system includes inlet and outlet separators • Boiling point below...
• Easily prime over long distances • Low strokes/minute rate increases diaphragm life • Overload-protected, fan-cooled, shaded-pole gear motor (1/35 hp) is permanently lubricated • Sealed VALOX<reg> housing resists harsh...
• Exceptional performance for the price! • General purpose pumps are great for filtration or vacuum drying • At 45 dB(A) it¡¦s quieter than a conversation • Long service intervals...
• Flow delivery rate is constant at any voltage from 94 to 264 VAC—not affected by voltage fluctuations • High strokes per minute ensure a more uniform distribution of fluid...
• Free-air capacities up to 2.2 cfm (62.3 L/min) • Shaded-pole, fan-cooled motor has thermal overload switch to protect your pump system • Different pump models have heads in parallel...
• High suction lift and high viscosity combine in the stainless steel pump • Achieve up to 65 GPH or 1100 psi • Internal bypass allows for improved valve performance...
• Low-cost, high-flow pumping solution • Ideal for pumping shear-sensitive or particulate-laden fluids • Durable, portable pumps mount in any position • Available in cast aluminum or nonclogging Delrin® acetal...
• Manually adjustable stroke length and stroke frequency provide precise control of flow rates • Clear face cover protects pump controls on low flow models (1 GPH and lower) •
• Move fluids with viscosities up to 11,000 cp • Air-powered motor eliminates sparking concerns associate with electrical pumps • Bolted pump design allows easy access to pump head for...
• No metal wetted parts permit use with corrosive liquids • All models feature factory-set pressure limits to protect pumps from damage<emdash>pumping stops when high limit is reached, resumes when...
• No metal wetted parts permit use with corrosive liquids • Continuous at 15 psi (1 bar) and 70<deg>F (21<deg>C) ambient temperature • All models feature factory-set pressure limits to...
• Pump greater flow rates at lower pressures • Feature an easily operated cam-type adjustment with an infinite number of settings between zero and 100% of maximum pump capacity •
• Pump up to 3 L/min with a single air-operated diaphragm • Simple operation gives you long service life • Choose the 80 to 100 psi pumps for high inlet...
• Pumps feature two separate head assemblies—obtain proportional flow rates for two different materials or twice the maximum flow rate when you are pumping just one • Change flow rates...
• Reliable metering performance<emdash>guided dual check valves provide precise seating and excellent priming and suction lift • PVC and PTFE construction with external control • Ideal for water treatment and...
• Reliable metering performance<emdash>guided dual check valves provide precise seating and excellent priming and suction lift High-viscosity 4 to 20 mA pumps handle viscous fluids up to 20,000 cp. Pumps...
• Small footprint is ideal for use with your rotary evaporator and other laboratory applications • Speed-regulated, point accurate, analytically pure vacuum • Effective and reproducible processes • Compact design...
• Small pump cavity, two check valves, and high stroke frequency combine for superb self-priming and degassing properties • Pumps provide up to 360 strokes per minute for smooth, efficient...
• Stainless steel double-diaphragm pumps that comply to ATEX directives • Prevents electro-static discharge that could ignite in a gaseous explosive environment • Fully conductive and 100% groundable • Excellent...
• Superior quality pumps at affordable prices • Combine engineering excellence with quality materials of construction • Dual output adjustment, stroke length, and cycle time • Feature double-ball inlet and...
• Uniformity of discharge ensures low-pulsation transfer process • Quiet, reliable, accurate, and virtually maintenance-free • Pumps can run dry continuously without damage • Versatile pumps handle flow rates up...
• Unique air valve ensures a positive shift every time<emdash>pump will not stall • All diaphragms, liquid chambers, and manifolds are constructed • of 100% virgin PTFE for long life...
• Unique cavity configuration minimizes dead space and air entrapment • All-plastic, convoluted diaphragm design handles many vacuum/pressure applications and reduces stress, wear, and heat build-up. • Pumps are available...
• Unique configurations to meet your demanding needs • Santoprene elastomers provide higher abrasion resistance • Heavy duty pilot valve simplifies maintenance repairs due to 'dirty' air • Stall proof...
• Varying materials of construction to meet your chemical resistance needs and ATEX compliance • Three materials of construction offer a solution to meet your budget • Head design greatly...
• Worry-free pumping of common industrial fluids Davis Instruments is providing high-performance diaphragm pumps that can handle a wide range of industrial fluids—from liquid butane to drinking water to ceramic...
Diaphragm Metering Pumps
Diaphragm Pumps
Drum Safety Wand/Suction Tube Straightener prevents suction tubing from curling. The rigid construction keeps the foot valve at the bottom of the tank and provides a dry hand hold when...
Pump is ideal for low-pressure applications, such as filling viscometers. This diaphragm pump features oilless, quiet operation and provides pressure to 35 psi or vacuum to 20"Hg. Pump includes fittings...
Seven-day timer pumps provide a simple and cost effective metering system for timed applications. Pumps offer eight on/eight off programs per week for maximum adjustability. These pumps feed chemical products...
The 4 to 20 mA pumps feature automatic control with 4 to 20 mADC direct or external pacing, reliable timing circuits, stop function, and manually adjustable stroke rate and length.
Vacuum/pressure pump, 115 V, 0.5 cfm
Vacuum/pressure pump, 115 V, 0.54 cfm
Vacuum/pressure pump, 115 V, 1.1 cfm
Vacuum/pressure pump, 12 VDC, 0.7 cfm
Vacuum/pressure pump, 230 V, 0.4 cfm
Vacuum/pressure pump, 230 V, 0.45 cfm
Vacuum/pressure pump, 230 V, 0.91 cfm

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