CD3

CHEM-FEED® Multi-Diaphragm Metering Pump

The CD3 Multi-Diaphragm Metering Pump delivers smooth, continuous chemical feed even when injecting chemicals that off-gas like Peracetic Acid and Sodium Hypochlorite.  The cutting-edge Hyperdrive Technology allows for alternating pumping action between two diaphragms: when one diaphragm is in the suction phase, the other is in the discharge, resulting in a smooth chemical feed profile and eliminating the chance of vapor lock and loss of prime.

The CD3’s exclusive DiaFlex® and Flex-A-Prene® diaphragms for superior chemical resistance and maximum durability.

Technical Overview:

GPH
.05 - 52.6
LPH
.19 - 199
mL/min
3.1667 - 3317
Pressure
145 PSI (10 Bar)
Enclosure Rating
NEMA 4X (IP66)
Standards
CE, cETLus, RoHS
Control Methods
Manual, Remote Analog/Digital
Power Supply
100 to 240VAC-50/60Hz
Literature
3D Visualizer

Features

Benefits:
  • Exclusive Hyperdrive Technology allows for smooth chemical feed – Patent Pending
  • Dual Diaphragm with full stroke technology will not lose prime, ideal for pumping chemicals that off-gas (Peracetic Acid, Sodium Hypochlorite)
  • Can pump chemicals continuously, like a peristaltic pump, without the need for tube assemblies
Communication and Interface:
  • 5” touchscreen color LCD display
  • User-friendly configurations
  • Control Methods:
    • Manual Control
    • 4-20mA Input
    • Remote Start/Stop
    • Pulse Input
    • Frequency Input
    • EtherNet/IP
    • Modbus TCP/IP
    • PROFIBUS
    • Alarm Outputs
    • FVS
    • Relay Ouput
Superior Design:
  • 2 Year Warranty
  • 1,000:1 turndown ratio
  • NEMA 4X (IP66) wash-down, chemically resistant powder coated enclosure
  • Large PVDF, Ceramic, double ball check valves without metal springs
Safety Features:
  • Diaphragm Failure Detection (DFD) Senses diaphragm rupture by detecting chemical in the pump head. No false triggering – Patented
  • Security programmable 6-digit password to prevent tampering
Optional Components Available:
  • Mounting Extended Brackets (72000-557) – 1 Pair, SS, 4 SS Screws
What’s Included:
  • CD3 Multi-Diaphragm Metering Pump
  • Discharge injection fitting with check valve
  • With “B” ½” hose barb and “M” M/NPT type connections:
    • Suction foot valve / strainer
  • Mounting hardware kit
  • Junction box connectors

Output

Motor Speed % RPM 0 PSI (0 bar) 40 PSI (2.8 bar) 90 PSI (6.2 bar) 140 PSI (9.7 bar)
GPH (mL/min)
0% 0 0 0 0 0
1% 1.3 0.5 (32) 0.5 (32) 0.4 (25) 0.4 (25)
5% 10 2.6 (164) 2.4 (151) 2.3 (145) 2.1 (132)
10% 19 5 (315) 4.8 (303) 4.4 (278) 4.1 (259)
25% 48 12.5 (789) 11.9 (751) 11 (694) 10.8 (681)
50% 95 25 (1577) 23.9 (1508) 22 (1388) 21.4 (1350)
75% 142 37.6 (2372) 35.7 (2252) 33.4 (2107) 31.2 (1968)
100% 190 52.6 (3318) 48.2 (3041) 37.9 (2391) 34.6 (2182)

Specifications

Maximum Working Pressure
  • 145 psig (10 bar)
Maximum Fluid Temperature
  • PVDF connections: 185 °F (85 °C)
Maximum Ambient Temperature
  • 14 °F to 115 °F (-10 °C to 46 °C )
Maximum Storage Temperature
  • -40 °F to 158 °F (-40 °C to 70 °C)
Maximum Viscosity
  • 1,000 Centipoise
Maximum Suction Lift
  • 23 ft. Water, 0 psig (7 m, 0 bar)
  • 115VAC/60Hz, 1ph (2.0 Amp Maximum)
  • 230VAC/60Hz, 1ph (1.0 Amp Maximum)
Operating Voltage
  • 220VAC/50Hz, 1ph (1.0 Amp Maximum)
  • 240VAC/50Hz, 1ph (1.0 Amp Maximum)
  • 230VAC/50Hz, 1ph (2.0 Amp Maximum)
  • 115V60Hz = NEMA 5/15 (USA)
  • 230V60Hz = NEMA 6/15 (USA)
Power Cord Options
  • 220V50Hz = CEE 7/VII (EU)
  • 240V50Hz = AS 3112 (Australia/New Zealand)
  • 230V50Hz = BS 1363/A plug (United Kingdom)
Motor
  • 1/4 HP Brushless DC motor
Motor Speed Adjustment Range
  • 1,000:1 (0.1% – 100% motor speed) Max. rpm = 190
  • 0.1% increments > 10% motor speed
Motor Speed Adjustment Resolution
  • 0.01% increments > 1% motor speed and < 10%
  • 0.001% increments < 1% motor speed
Display / User Interface
  • 5” touchscreen color LCD, UV resistant.
Display Languages
  • English, Spanish, French, German, and Portuguese selectable
Security
  • Programmable 6-digit password
Maximum Overall Dimensions
  • 16-1/8”W x 15-1/4”H x 15-5/16”D (40.9W x 38.7H x 38.9D cm)
Approximate Shipping Weight
  • 50lb. (22.7 Kg)
Enclosure
  • NEMA 4X (IP66), Polyester powder coated aluminum & Noryl
RoHS Compliant
  • Yes
Standards
  • cETLus, CE

Accessories

72000-557
$84.00
Add to cart
KIT-PSM
$341.00
Add to cart

Replacement Parts

ImageCatalog NumberDescriptionPriceBuy

Downloads

Title
CD3 Instruction Manual – 80000-608 [LEGACY]
3.10 MB January 20, 2025
CD3 Instruction Manual – 80000-623
15.02 MB May 5, 2025
CD3 Replacement Parts List
1 MB February 10, 2022
CD3 Technical Data Sheet – 85000-148 [LEGACY]
2.01 MB January 20, 2025
CD3 Technical Data Sheet – 85000-193
1.41 MB January 20, 2025
CHEM-FEED® Industrial Comparison Chart
2.98 MB May 15, 2025
Chem-Pro® CD3 – Multi-Diaphragm Metering Pump Brochure
495.73 KB February 8, 2022
Chem-Pro® CD3 – Multi-Diaphragm Metering Pump Brochure (Español)
497.76 KB February 8, 2022
DiaFlex Diaphragms Brochure – 80000-727
1.61 MB June 10, 2025
Diaphragm Failure Detection (DFD) Brochure – 80000-725
4.42 MB April 16, 2024
FLEXFLO Pump EDS File
11 KB February 21, 2024
FLEXFLO Pump GDS File
2 KB February 21, 2024
Industrial Accessories Guide – 85000-179
994.07 KB November 4, 2024
Industrial Catalog 2025 – 80000-707
17.00 MB May 16, 2025
Industrial Products Brochure
3.09 MB May 9, 2025

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