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Diaphragm Pumps

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Blue-White® Diaphragm Metering Pumps

Blue-White’s CHEM-FEED® Diaphragm Metering Pumps (Diaphragm Dosing Pumps) can accurately feed chemicals in high-pressure applications and require minimal downtime. Their exclusive DiaFlex® Diaphragms are constructed of PVDF for exceptional chemical compatibility and are guaranteed for the life of the pump.

industrial diaphragm pumps family 2048x1365 1

Explore Diaphragm Pumps

Industrial Diaphragm Pumps

CHEM-FEED® CD1 Multi-Diaphragm Pump

CD1
CHEM-FEED® Multi-Diaphragm Metering Pump

GPH LPH
.004 - 7.70 .015 - 29.2
PSI Bar
150 10.3

CHEM-FEED® CD3 Multi-Diaphragm Metering Pump for Industrial Applications

CD3
CHEM-FEED® Multi-Diaphragm Metering Pump

GPH LPH
.05 - 52.6 .19 - 199
PSI Bar
145 10

C2 scaled

C2
CHEM-FEED® Diaphragm Metering Pump

GPH LPH
.02 - 16.5 .09 - 62.5
PSI Bar
175 12

C3 scaled

C3
CHEM-FEED® Diaphragm Metering Pump

GPH LPH
.3 - 40 .1 - 154
PSI Bar
150 10.3

C 600

C-600
CHEM-FEED® Diaphragm Metering Pump

GPH LPH
1 - 21.5 4 - 81.4
PSI Bar
125 8.6

C 600HV

C-600HV
CHEM-FEED® Diaphragm Metering Pump

GPH LPH
1.74 - 47.1 6.6 - 178.3
PSI Bar
20 1.4

C 1500N

C-1500N
CHEM-FEED® Diaphragm Metering Pump

GPH LPH
.2 - 9.5 .5 - 36
PSI Bar
125 8.6

Municipal Diaphragm Pumps

CHEM-FEED® MD1 Multi-Diaphragm Pump

MD1
CHEM-FEED® Multi-Diaphragm Metering Pump

GPH LPH
.0007 - 7.70 .0029 - 29.15
PSI Bar
150 10.3

CHEM-FEED® MD3 Multi-Diaphragm Metering Pump for Municipal Water and Waste Water Treatment Applications

MD3
CHEM-FEED® Multi-Diaphragm Metering Pump

GPH LPH
.03 - 52.6 .10 - 199
PSI Bar
145 10

C2 scaled

C2
CHEM-FEED® Diaphragm Metering Pump

GPH LPH
.02 - 16.5 .09 - 62.5
PSI Bar
175 12

C3 scaled

C3
CHEM-FEED® Diaphragm Metering Pump

GPH LPH
.3 - 40 .1 - 154
PSI Bar
150 10.3

How do Diaphragm Pumps Work?

Diaphragm pumps are a type of positive displacement pump that use a rubber or plastic diaphragm and corresponding valves on each side of the pump head to pump fluid. When the diaphragm flexes, the pressure inside the pump lowers, drawing fluid into the suction side of the pump head. When the diaphragm flexes back, the fluid is forced out of the discharge side of the pump head. Many diaphragm pumps include check valves to keep the liquid from flowing backward in the pump.

Diaphragm Pump Working Principle Diagram

Advantages of a Diaphragm Metering Pump

  • Low cost of ownership

    A properly sized diaphragm metering pump requires very little maintenance, saving you time and money

  • Energy efficient

    On the forward (power) stroke of a diaphragm pump, more motor torque is used, but much less on the reverse stroke

  • High pressure capabilities

    Overcoming line pressure is easier with properly sized diaphragm metering pumps

  • Exclusive longer lasting diaphragm

    The revolutionary DiaFlex® Diaphragms from Blue-White last the entire life of the pump

Applications

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Diaphragm Pumps FAQ

Diaphragm pumps are a type of positive displacement pump that combines the reciprocating action of a diaphragm and valves on either side of a pump head to transfer fluid.

Pulsation dampeners are often used to reduce pressure fluctuation found in regular diaphragm pump operation. Another method is utilizing diaphragm pumps with two or more diaphragms that operate in succession. Blue-White’s multi-diaphragm pump, for example, features two diaphragm pump heads on either side of a drive enclosure.  When one diaphragm is in the suction phase and the other in the discharge phase. The two diaphragms working together combined with a fluid manifold creates a smooth chemical feed profile that significantly reduces pulsation.

Diaphragm pumps are used in a variety of applications, including water treatment and conditioning, soap, wax and detergent injection, wastewater treatment, biocide feed, rural water systems, cooling tower & boiler water treatment, fertilizer and nutrient injection.

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