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Metering pump
with Motor Controller |
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U Type
(Pump integrated type) |
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S Type
(Separate type) |
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The PMC is an innovative type of metering pump.
It shares the dual advantages of the wide application range
afforded by motor-driven pumps and the outstanding control
functions of solenoid-driven pumps.
You're now freed from troublesome flow rate adjustment.
What's more, inverters, converters,
and other devices are no longer required. |
What is the "solenoid drive system?"
Magnetic force is generated on the solenoid coil by the power circuit built into the electronic circuitry to push out the diaphragm. As each single shaft advance and retraction operation can be controlled, this means that the flow rate can be controlled to higher precision. |
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| <Features> |
Fine-adjustment in 1-stroke Increments
The PMC uses a newly developed "electric brake system" to automatically control motor overrun and stop motor operation at each single rotation. Small amounts of liquid can now be accurately adjusted per single stroke. Also, the startup current has been reduced to keep heat generated by the motor to a minimum and improve durability.
1:700 Wide Control Range
The PMC solves the problems of low-speed operation and conventional narrow control range limited to 1:10 that general-purpose inverters often face. The PMC can be operated by one stroke setting within ten minutes, and supports a considerably extended control range of 1:700.
Handles Large Volumes and High-viscosity Liquids
The PMC uses a motor drive system, which makes it compatible with a wide range of chemical applications. These include the high?pressure injection at large flow rates and the transfer of high-viscosity liquids, which were difficult on solenoid?driven pumps. The PMC is built tough and can be attached with a flange so that it can be installed on production lines.
Various Control Functions Built-in
The PMC utilizes the very latest digital control technology. This enables batch injection, count operation, interval operation, and other flow rate control functions on a par with those provided by a solenoid drive system. Both pulse and analog signals can also be input, enabling outstanding connectability and interlocked operation with other device.
Linearity Improved during Changing of Flow Rate
The linearity of the pump's discharge volume has been improved by adoption of an electric brake system and optimized control characteristics with respect to the input signal.
Resistant to Noise Generated by Other Equipment
For extra safety, an EMI filter is built into the PMC's electronic input section as part of the standard specification. Moreover, the PMC is completely isolated from the influence of noise generated by peripheral devices and equipment as circuits are housed in a metal box. |
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Flow proportional injection
Signal converter, inverter, controller, and other devices no longer required |
| Chemicals are injected according to the flow rate on the main piping. Devices such as converters and troublesome wiring to these devices are no longer required as flow meter signals are received directly for performing automatic control. |
Application Examples
Injection of detergents in car washes, dilution of caustic soda, water disinfection, etc |
Conventional System
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System Configured with PMC
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