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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 eliminating the chance 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 - 7.70
.015 - 29.2
.25 - 487
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 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



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Replacement Parts

ImageNameCatalog Number


Industrial Catalog 2023 – 80000-429
104137 17.00 MB January 31, 2023
Industrial Accessories Guide – 85000-179
94401 994.07 KB June 2, 2022
CHEM-FEED Industrial Comparison Chart
93677 2.98 MB May 17, 2022
CD1 Replacement Parts List
77827 606 KB February 10, 2022
CD1 Firmware Update
56683 208 KB February 2, 2023
CD1 Instruction Manual – 80000-610
55586 11.6 MB June 27, 2022
CD1 Technical Data Sheet – 85000-154
54967 959 KB January 3, 2023

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