MD1
CHEM-FEED® Multi-Diaphragm Metering Pump
The MD1 delivers smooth, continuous chemical feed even when injecting fluids that off-gas. Its cutting-edge Hyperdrive Technology alternates pumping action between two diaphragms, minimizing pulsation and risk of vapor lock.
The exclusive DiaFlex® and Flex-A-Prene® diaphragms for superior chemical resistance and maximum durability.
Technical Overview:
GPH
.0008 - 8.5
LPH
.003 - 32.2
mL/min
.054 - 536.3
Pressure
150 PSI (10.3 Bar)
Enclosure Rating
NEMA 4X (IP66)
Standards
NSF/ANSI 61, CE, cETLus, RoHS
Control Methods
Manual, Remote Analog
Power Supply
100 to 240VAC-50/60Hz
Literature
MD1 Literature
Instruction Manuals
MD1 Instruction Manual – 80000-614Technical Data Sheets
MD1 Technical Data Sheet – 85000-155Brochures
NACatalog
Municipal Catalog 2023
3D Visualizer
Features and Benefits
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 & Interface:
- Input: 4-20mA external control
- 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.
Superior Design:
- 5 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
Optional Components Available:
- Elbow Adapter Kits
- Elbow Connectors – ½” Male NPT, ½” Hose Barb, ⅜” Tube Compression
- O-rings – AFLAS, EP
What’s Included:
- MD1 Multi-Diaphragm Metering Pump
- Discharge injection fitting with check valve
- Suction foot valve / strainer
- Suction ceramic weight
- Mounting hardware kit
- Display shield
Output
| Motor Speed % | 0 PSI (0 bar) | 30 PSI (2.1 bar) | 60 PSI (4.2 bar) | 90 PSI (6.2 bar) | 120 PSI (8.3 bar) | 150 PSI (10.3 bar) |
| GPH (mL/min) | ||||||
| 10% | 0.83 (52.7) | 0.82 (51.9) | 0.81 (51) | 0.8 (50.7) | 0.78 (48.9) | 0.74 (46.5) |
| 20% | 1.68 (106.3) | 1.66 (104.7) | 1.63 (102.8) | 1.58 (100) | 1.55 (98) | 1.49 (93.8) |
| 30% | 2.54 (160.3) | 2.5 (157.9) | 2.44 (154.2) | 2.4 (151.3) | 2.32 (146.6) | 2.24 (141.4) |
| 40% | 3.39 (213.7) | 3.34 (210.6) | 3.26 (205.4) | 3.19 (201.3) | 3.12 (196.6) | 2.99 (188.6) |
| 50% | 4.23 (266.8) | 4.17 (262.9) | 4.08 (257.5) | 3.99 (251.9) | 3.86 (243.3) | 3.73 (235.4) |
| 60% | 5.1 (321.6) | 5.02 (316.9) | 4.9 (309.1) | 4.79 (302.2) | 4.63 (292.4) | 4.49 (283.3) |
| 70% | 5.93 (373.9) | 5.84 (368.5) | 5.67 (357.6) | 5.59 (352.7) | 5.38 (339.6) | 5.23 (330) |
| 80% | 6.82 (430.2) | 6.72 (424) | 6.55 (413.1) | 6.37 (402.1) | 6.2 (391.1) | 6.02 (379.9) |
| 90% | 7.69 (485.1) | 7.58 (478) | 7.33 (462.6) | 7.21 (455.2) | 6.95 (438.4) | 6.79 (428.1) |
| 100% | 8.5 (536.3) | 8.34 (526) | 8.18 (516) | 7.96 (502) | 7.68 (484.4) | 7.5 (473.3) |
Specifications
Maximum Working Pressure:
- 150 psig (10.3 bar)
Maximum Fluid Temperature:
- 185 °F (85 °C)
Maximum Ambient Temperature:
- 14 to 115 °F/ -10 to 46 °C
Maximum Viscosity:
- 1,000 Centipoise
Maximum Suction Lift:
- 20 ft. at 0 PSI
Operating Voltage Range:
- 115V60Hz 1 PH (0.6A max.)
- 220V50Hz 1 PH (0.3A max.)
- 230V60Hz 1 PH (0.3A max.)
- 230V50Hz 1 PH (0.3A max.)
- 240V50Hz 1 PH (0.3A max.)
Power Cord Options:
- 115V/60Hz = NEMA 5/15 (USA)
- 230V/60Hz = NEMA 6/15 (USA)
- 220V/60Hz = CEE 7/VII (EU)
- 240V/60Hz = AS 3112 (Australia/New Zealand)
- 230V 50/60Hz = BS 1363/A (United Kingdom)
Motor:
- Brushless DC, 50W
Duty Cycle:
- Continuous
Turndown Ratio:
- 10,000:1 (0.01% – 100%) Max. rpm = 100
Enclosure:
- NEMA 4X (IP66), Valox® (PBT) & PA12
Maximum Overall Dimensions:
- 7.25”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:
- 10.5” W x 13.75” H x 11” D (26.7 W x 35 H x 28 D cm)
Approximate Shipping Weight:
- 15.5 lb. (7.0 Kg)
RoHS Compliant
- Yes
Standards
- NSF/ANSI 61, cETLus, CE
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Replacement Parts
| Image | Catalog Number | Description | Price | Buy |
|---|
Downloads
| Title | |||
|---|---|---|---|
|
ADV Quick Start Guide – 80000-731 |
722.51 KB | April 16, 2024 | Download |
|
CD1 MD1 Adapter Kits – 85000-199 |
410.23 KB | February 25, 2025 | Download |
|
CHEM-FEED® Municipal Comparison Chart |
3.15 MB | March 25, 2025 | Download |
|
DiaFlex Diaphragms Brochure – 80000-727 |
1.61 MB | April 16, 2024 | Download |
|
Diaphragm Failure Detection (DFD) Brochure – 80000-725 |
4.42 MB | April 16, 2024 | Download |
|
MD1 Brochure – 80000-711 |
5.75 MB | July 11, 2023 | Download |
|
MD1 Engineering Specifications |
71 KB | November 28, 2023 | Download |
|
MD1 Firmware Update |
208 KB | May 10, 2023 | Download |
|
MD1 Instruction Manual – 80000-614 |
10.3 MB | February 25, 2025 | Download |
|
MD1 Technical Data Sheet – 85000-155 |
1.02 MB | April 18, 2025 | Download |
|
MD1 Technical Data Sheet – 85000-155 [Deutsch] |
814.78 KB | March 7, 2025 | Download |
|
MD1 Technical Data Sheet – 85000-155 [Español] |
823.97 KB | March 7, 2025 | Download |
|
MD1 Technical Data Sheet – 85000-155 [Français] |
815.84 KB | March 7, 2025 | Download |
|
MD1 Technical Data Sheet – 85000-155 [Nederlands] |
792.52 KB | March 7, 2025 | Download |
|
MD1 Technical Data Sheet – 85000-155 [Português] |
819.22 KB | March 7, 2025 | Download |
|
Municipal Accessories Guide – 85000-178 |
1,021.20 KB | November 4, 2024 | Download |
|
Municipal Catalog 2025 – 80000-708 |
13.09 MB | January 20, 2025 | Download |
|
Municipal Products Brochure |
3.10 MB | January 24, 2025 | Download |
