HIGH RELIABILITY BALANCED-DIAPHRAGM DESIGN
The CheckPoint MDZ Series pump actuates a single hydraulically-balanced diaphragm. The process pressure is constantly balanced by hydraulic pressure on its opposing side, so the flexible diaphragms essentially experience no differential pressure - allowing high discharge pressures without damage.
EXCELLENT METERING CHARACTERISTICS
The diaphragm is hydraulically energized between 2 and 1,750 times per minute, depending on the model. A unique encapsulated cam-follower design efficiently converts the rotational energy of a motor to axial energy, which in turn actuates the diaphragm. The result is outstanding reliability, accuracy, and repeatability.
TOTAL FLOWRATE CONTROL
Flow is controlled via a variable frequency drive (VFD), allowing for precise output control locally or remotely. No stroke length adjustment is needed.
ABILITY TO HANDLE PARTICULATE
The MDZ pump head can handle extreme operating conditions where no plunger pump could survive. There are no sliding parts in contact with the chemical. The diaphragm does not contact a strike plate on the power stroke, so particles slip right by without damage. The internal check valves, featuring low-mass poppets, are extremely particle-tolerant and durable. There are no seals, just the highly-durable unstressed diaphragm.
INDUSTRIAL STRENGTH CONSTRUCTION
The pump head is constructed of 316SS, 17-4PH, Nitronic 50, Hastelloy, and/or other chemically-inert materials throughout, with a range of diaphragm materials. This pump is appropriate for any offshore or plant conditions.
"PLUG & PLAY" PACKAGES
CheckPoint can skid-mount any MDZ Series pump with an electric direct-drive motor complete with a variable frequency drive and all necessary components, including flow control valves, back pressure regulators, gauges, pipework, pulsation control, etceteras.
1. Weather-proof Housing
2. VFD - Variable Frequency Drive with manual or remote adjustment capabilites.
3. Motor - Constant Torque (CT), Inverter Duty electric motor for hazardous location.
4. Reduction gear drive. Available in 5:1 to 100:1.
5. Pump chemical head.
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CheckPoint MDZ Series Pumps are specifically developed to handle the most challenging applications. The pump produces a leakproof, positive-displacement flow range of 0.010 USG/H (0.038 L/H) - 60 USG/H (227 L/H) and at pressures up to 1,500 PSIG (103 BARG). The MDZ delivers nearly maintenance-free operation for your most demanding applications. It will handle the pressure, temperature, friction, and suspended particle challenges of your worst applications with outstanding reliability.
- FLOW RATE
0.010 to 60 USG/H (0.038 to 227 L/H)
- HANDLES PARTICULATE
Plungerless & sealless - No sliding friction.
- CHEMICALLY RESISTANT
All wetted parts are stainless and other high grade metals, with a wide choice of seal materials.
- HIGHLY RELIABLE
Proven design offering "order of magnitude" reliability improvement.
- ZERO LEAKAGE
Diaphragm design offers complete chemical isolation.
- HIGH EFFICIENCY
Minimize power consumption.
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