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:

GPH .004 – 7.70 Enclosure Rating NEMA 4X (IP66)
LPH .015 – 29.2 Standards CE, cETLus, RoHS
mL/min .25 – 487 Control Methods Manual, Remote Analog
Pressure 150 PSI (10.3 Bar) Power Supply 100 to 240VAC-50/60Hz



  • 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
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
cETLus, CE