Case Study
February 23, 2024
Industrial Diaphragm Pumps
Blue-White® Industrial Diaphragm Pumps
Blue-White’s Single and Multi-Diaphragm Metering Pumps are designed to meet the demands of many industrial installs. The smooth pumping action and dependable performance of CHEM-FEED® Metering Pumps ensure precise chemical dosing, and CHEM-FEED® pumps require minimal maintenance, less downtime, and lower costs. Their exclusive DiaFlex® Diaphragms are constructed of PVDF for exceptional chemical compatibility and are designed to last the life of the pump.
Explore Industrial Diaphragm Pumps
CD1
CHEM-FEED® Multi-Diaphragm Metering Pump
.0035 - 7
GPH
.0132 - 26.46
LPH
Flow Rate
180
PSI
12
Bar
Pressure
Technical specifications
GPH
.0035 - 7
LPH
.0132 - 26.46
mL/min
.0441 - 441
PSI
180
Bar
12
Enclosure Rating
NEMA 4X (IP66)
Standards
CE, cETLus, RoHS
Control Methods
Manual, Remote Analog
Power Supply
100 to 240VAC-50/60Hz
CD3
CHEM-FEED® Multi-Diaphragm Metering Pump
.05 - 52.6
GPH
.19 - 199
LPH
Flow Rate
145
PSI
10
Bar
Pressure
Technical specifications
GPH
.05 - 52.6
LPH
.19 - 199
mL/min
3.1667 - 3317
PSI
145
Bar
10
Enclosure Rating
NEMA 4X (IP66)
Standards
CE, cETLus, RoHS
Control Methods
Manual, Remote Analog/Digital
Power Supply
100 to 240VAC-50/60Hz
C2
CHEM-FEED® Diaphragm Metering Pump
.02 - 16.5
GPH
.09 - 62.5
LPH
Flow Rate
175
PSI
12
Bar
Pressure
Technical specifications
GPH
.02 - 16.5
LPH
.09 - 62.5
mL/min
1.5 - 1042
PSI
175
Bar
12
Enclosure Rating
NEMA 4X
Standards
CE, cETLus, RoHS, NSF61
Control Methods
Manual, Remote Analog/Digital
Power Supply
100 to 240VAC-50/60Hz
C3
CHEM-FEED® Diaphragm Metering Pump
.3 - 40
GPH
.1 - 154
LPH
Flow Rate
150
PSI
10.3
Bar
Pressure
Technical specifications
GPH
.3 - 40
LPH
.1 - 154
mL/min
1.6667 - 2567
PSI
150
Bar
10.3
Enclosure Rating
NEMA 4X
Standards
CE, cETLus, RoHS, NSF61
Control Methods
Manual, Remote Analog/Digital
Power Supply
100 to 240VAC-50/60Hz
C-600P
CHEM-FEED® Diaphragm Metering Pump
1 - 21.5
GPH
4 - 81.4
LPH
Flow Rate
125
PSI
8.6
Bar
Pressure
Technical specifications
GPH
1 - 21.5
LPH
4 - 81.4
mL/min
66.7 - 1357
PSI
125
Bar
8.6
Enclosure Rating
NEMA 1 (IP20)
Standards
NSF/ANSI 50, CE, ETL, CSA, RoHS
Control Methods
Manual
Power Supply
100 to 240VAC-50/60Hz
C-600HV
CHEM-FEED® Diaphragm Metering Pump
1.74 - 47.1
GPH
6.6 - 178.3
LPH
Flow Rate
20
PSI
1.4
Bar
Pressure
Technical specifications
GPH
1.74 - 47.1
LPH
6.6 - 178.3
mL/min
110 - 2972
PSI
20
Bar
1.4
Enclosure Rating
NEMA 1 (IP20)
Standards
CE, UL, CSA
Control Methods
Manual
Power Supply
100 to 240VAC-50/60Hz
C-1500N
CHEM-FEED® Diaphragm Metering Pump
.2 - 9.5
GPH
.5 - 36
LPH
Flow Rate
125
PSI
8.6
Bar
Pressure
Technical specifications
GPH
.2 - 9.5
LPH
.5 - 36
mL/min
8.3333 - 600
PSI
125
Bar
8.6
Enclosure Rating
NEMA 3R (IP23)
Standards
NSF/ANSI 50, CE, ETL, CSA, RoHS
Control Methods
Manual
Power Supply
100 to 240VAC-50/60Hz
Compare CHEM-FEED® Features
Download Comparison Chart
Comparison Chart
| CHEM-FEED® Features | C2 | C3 | CD1 | CD3 |
|---|---|---|---|---|
| CHEM-FEED® Product |  |
 |
 |
 |
| Flow Output Range |
.02 - 16.5 GPH (.09 - 62.5 LPH) |
.3 - 40 GPH (.1 - 154 LPH) |
.004 - 8.5 GPH (.016 - 32.2 LPH) |
.05 - 52.6 GPH (.19 - 199 LPH) |
| Turndown | 100:1 | 100:1 | 1,000:1 | 1,000:1 |
| Warranty | 2 YEAR | 2 YEAR | 2 YEAR | 2 YEAR |
| Variable Speed DC Motor | BRUSH | BRUSH | BRUSHLESS | BRUSHLESS |
| Dia-Flex® PVDF Single-layer Diaphragm | ||||
| DFD (Diaphragm Failure Detection) | ||||
| Protective LCD Snap-on Cover | ||||
| Maintenance Mode | ||||
| Input: Remote Start/Stop | ||||
| Input: 4-20mA | ||||
| Input: Frequency (Pulsed) | ||||
| Output: 4-20mA | No | Optional | ||
| Proportional Dosing | ||||
| Password Protect (PIN) | LOCKOUT BUTTON |
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.
Advantages of a Diaphragm Metering Pump
Applications
- Wastewater Treatment
- Potable Water Treatment
- Agriculture and Irrigation
- Car Wash
- Cooling Tower Water Treatment
- Boiler Feedwater Treatment
- General Chemical Metering
Explore Case Studies
Customer Testimonial
Blue-White is innovative. And the unique thing about Blue-White, if you send them an idea or you send them a request, it's amazing how fast their response is...
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.
