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 | Enclosure Rating | NEMA 4X (IP66) |
| LPH | .10 – 199 | Standards | NSF/ANSI 61, CE, cETLus, RoHS |
| mL/min | 1.6667 – 3317 | Control Methods | Manual, Remote Analog/Digital |
| Pressure | 145 PSI (10 Bar) | Power Supply | 100 to 240VAC-50/60Hz |
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
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. |