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CHEM-FEED® Multi-Diaphragm Metering Pump

The CD1 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 minimizing the risk of vapor lock.

The CD1’s exclusive DiaFlex® Diaphragms will last the life of the pump, eliminating the need for expensive rebuild kits. 

Technical Overview:

.004 - 8.5
.016 - 32.2
.268 - 536.3
150 PSI (10.3 Bar)
Enclosure Rating
NEMA 4X (IP66)
CE, cETLus, RoHS
Control Methods
Manual, Remote Analog
Power Supply
100 to 240VAC-50/60Hz
3D Visualizer


  • Exclusive Hyperlink Drive 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 & Interface:
  • Input: Remote Start/Stop: Non-powered dry contact closure for remote start/stop
  • Input: Compatible with Flow Verification Sensors S6A and Micro-Flo
  • Output: Alarm relay 250V / 3A
  • Output: Motor On / Off single solid-state
  • SCADA Inputs/Outputs include: 4-20mA. (Included with CD1V only)
Superior Design:
  • 2 Year Warranty
  • Energy-efficient BLDC motor will not overheat
  • Snap-in-place wall and floor mounting bracket – Patent pending
  • DiaFlex® diaphragm design will last the life of the pump, eliminates the need for expensive rebuild kits – Patented
  • Manifold design allows for multiple configuration possibilities – suction and discharge ports can be positioned on the left and right side of the pump
Safety Features:
  • Diaphragm Failure Detection (DFD) Senses diaphragm rupture by detecting chemical in the pump head. No false triggering – Patented
  • Lockout feature prevents any unwanted tampering – Patent pending
  • Display shield to protect controls from harsh environments
What’s Included:
  • CD1 Multi-Diaphragm Metering Pump
  • Discharge injection fitting with check valve
  • Suction tube – clear PVC – 5′ length (3/8″ OD, 1/4″ ID)
  • Suction foot valve / strainer
  • Suction ceramic weight
  • Discharge tube – opaque polyethylene – 5′ length (3/8″ OD, 1/4″ ID)
  • Mounting hardware kit
  • Display shield



Maximum Working Pressure
  • 150 psig (10.3 bar)
Maximum Fluid Temperature
  • 185 °F (85 °C)
Maximum Ambient Temperature
  • 14 °F to 115 °F / -10 °C to 46 °C
Maximum Viscosity
  • 1,000 Centipoise
Maximum Suction Lift
  • 20 ft. at 0 PSI
Operating Voltage Range
  • 100 to 240VAC-50/60Hz
Power Cord Options
  • 115V50/60Hz (0.6A max.) = NEMA 5/15 (USA)
  • 230V50/60Hz (0.3A max.) = NEMA 6/15 (USA)
  • 220V50/60Hz (0.3A max.) = CEE 7/VII (EU)
  • 240V50/60Hz (0.3A max.) = AS 3112 (Australia/New Zealand)
  • 230V50/60Hz (0.3A max.) = BS 1363/A (UK)
  • Brushless DC, 50W
Duty Cycle
  • Continuous
Turndown Ratio
  • 2,000:1, (0.05% – 100%) Max rpm = 100
Maximum Overall Dimensions
  • 7-1/4” W x 9” H x 10” D (18.5 W x 22.9 H x 25.2 D cm)
Product Weight
  • 8.5 lb. (3.8 Kg)
Approximate Shipping Dimensions
  • 10-1/2” W x 13 3/4” H x 11” D
Approximate Shipping Weight
  • 15.5 lb. (7.0 Kg)
  • NEMA 4X (IP66), Valox® (PBT) & PA12
RoHS Compliant
  • Yes
  • cETLus, CE



Replacement Parts

ImageNameCatalog Number


CD1 Brochure – 80000-710
6.20 MB July 11, 2023
CD1 Firmware Update
208 KB May 10, 2023
CD1 Instruction Manual – 80000-610
11.6 MB September 8, 2023
CD1 Replacement Parts List
606 KB February 10, 2022
CD1 Technical Data Sheet – 85000-154
959 KB September 8, 2023
CHEM-FEED Industrial Comparison Chart
2.98 MB May 17, 2022
DiaFlex Diaphragms Brochure – 80000-727
1.61 MB July 24, 2023
Diaphragm Failure Detection (DFD) Brochure – 80000-725
4.48 MB July 24, 2023
Industrial Accessories Guide – 85000-179
994.07 KB June 2, 2022
Industrial Catalog 2023 – 80000-707
17.00 MB August 8, 2023

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