MD3
CHEM-FEED® Multi-Diaphragm Metering Pump
The MD3 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 MD3’s exclusive DiaFlex® Diaphragms will last the life of the pump, eliminating the need for expensive rebuild kits.
Technical Overview:
GPH
.03 - 52.6
LPH
.10 - 199
mL/min
1.6667 - 3317
Pressure
145 PSI (10 Bar)
Enclosure Rating
NEMA 4X (IP66)
Standards
NSF/ANSI 61, CE, cETLus, RoHS
Control Methods
Manual, Remote Analog/Digital
Power Supply
100 to 240VAC-50/60Hz
Literature
MD3 Literature
Instruction Manuals
MD3 Instruction Manual – 80000-583
Technical Data Sheets
MD3 Technical Data Sheet 85000-127
Catalog
Engineering Specifications
3D Visualizer
Features
Benefits:
- 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 and Interface:
-
- Operator friendly digital touch pad with menu driven software.
- VGA Graphic multi-color backlit LCD displays remote/local control status, motor speed,
- output rate, input signal values, service and alarm status.
- Inputs include: 4-20mA, 0-10Vdc, and Pulse inputs for remote external speed control and 0-30 VDC / contact closure remote start/stop
- Outputs include: Scalable 4-20mA or pulse, one 250V/6A relay and three 115V/1A contact closures assignable to monitor up to 17 different pump functions including TFD, FVS, remote/local control setting, motor on, fault, current operating mode, and others.
Superior Design:
- 5 Year Warranty
- 2,000:1 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, preventing hazardous chemical spills
- Security programmable 4-digit password to prevent tampering
Optional Components Available:
- Mounting Extended Brackets (72000-557) – 1 Pair, SS, 4 SS Screws
What’s Included:
- MD3 Multi-Diaphragm Metering Pump
- Suction foot valve / strainer
- Mounting hardware kit
-
Fitting Kit
- ½” M/NPT straight and elbow connections
- ½” Hose barb straight and elbow connections
- Union nuts
Output
Specifications
Maximum Working Pressure
- 145 psig (10 bar)
Maximum Fluid Temperature
- PVDF connections: 185 F (85 C)
Ambient Operating Temperature
- 14 F to 115 F (-10 C to 46 C)
Ambient Storage Temperature
- -40 F to 158 F (-40 C to 70 C)
Operating Voltage
- 115VAC/60Hz, 1ph (2.0 Amp Maximum)
- 230VAC/60Hz, 1ph (1.0 Amp Maximum)
- 220VAC/50Hz, 1ph (1.0 Amp Maximum)
- 240VAC/50Hz, 1ph (1.0 Amp Maximum)
- 230VAC/50Hz, 1ph (2.0 Amp Maximum)
Power Cord Options
- 115V60Hz = NEMA 5/15 (USA)
- 230V60Hz = NEMA 6/15 (USA)
- 220V50Hz = CEE 7/VII (EU)
- 240V50Hz = AS 3112 (Australia/New Zealand)
- 230V50Hz = BS 1363/A plug (United Kingdom)
Enclosure
- NEMA 4X (IP66), Polyester powder coated aluminum.
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 WT
- 53 lb. (24.04 Kg)
Motor
- 1/4 HP Brushless DC motor
Motor Speed Adjustment Range
- 2,000:1 (0.05% – 100% motor speed)
Motor Speed Adjustment Resolution
- 0.1% increments > 10% motor speed
- 0.01% increments > 1% motor speed and < 10%
- 0.001% increments < 1% motor speed
Maximum Viscosity
- 1,000 Centipoise
Maximum Suction Lift
- 23 ft. Water, 0 psig (7 m, 0 bar)
Display
- 3 color VGA backlit LCD, UV resistant.
Display Resolution
- 0.0 > 10% motor speed
- 0.00 > 1% motor speed and < 10%
- 0.000 < 1% motor speed
Display Languages
- English, Spanish, French or German selectable.
Keypad
- Eleven button positive action tactile switch keypad.
Security
- Programmable 4-digit password.
Videos
Related Case Studies
Accessories
Replacement Parts
| Image | Name | Catalog Number |
|---|
Downloads
| Title | |||
|---|---|---|---|
|
CHEM-FEED Municipal Comparison Chart |
3.15 MB | May 17, 2022 | Download |
|
DiaFlex Diaphragms Brochure – 80000-727 |
1.61 MB | July 24, 2023 | Download |
|
MD3 Engineering Specifications |
59.50 KB | February 16, 2022 | Download |
|
MD3 Instruction Manual – 80000-583 |
8.08 MB | September 20, 2023 | Download |
|
MD3 Quick Start Guide – 80000-584 |
1.20 MB | September 12, 2023 | Download |
|
MD3 Technical Data Sheet – 85000-127 |
1.34 MB | October 2, 2023 | Download |
|
MD3 Technical Data Sheet – 85000-194 |
1.23 MB | October 2, 2023 | Download |
|
MD3 w/ Skid System Engineering Specifications |
67.00 KB | February 10, 2022 | Download |
|
Municipal Accessories Guide – 85000-178 |
1,021.20 KB | April 29, 2022 | Download |
|
Municipal Brochure |
11.69 MB | July 6, 2022 | Download |
|
Municipal Catalog 2023 – 80000-708 |
13.09 MB | August 8, 2023 | Download |