This pump is of spring-back, direct-acting diaphragm, fixed-displacement type. The resin-made fluid-contact section has been successfully modified to be simple and solid. Flange (JIS10K) are used for pipe connections, as standard design-less damage-prone and much easier to handle compared the former series.
Medium-pressure large-capacity pump of Tohkemy
Discharge quantity is a lot, this dosing pump suitable for use in discharge pressure is medium (Less than 0.5MpaG).
●Various power source motors lined up as standard and semi-standard.
・200V ・220V ・380V ・400V ・415V ・420V ・440V
●Possible to be equipped with different voltage and explosion-proof.
(Please contact to ask us about delivery terms.)
Totally-enclosed fan-cooled (TEFC) outdoor flange type motor.
Possible to be equipped with coupling connection.
The pump can be equipped with a safety-increase explosion-proof motor, a pressure and explosion proof motor and other designated motor by coupling connection.
Protect option (Double diaphragms)
Normally pump diaphragm is single. The double –diaphragm design that possible to protect the reduction gears from corrosive liquid leak which might be caused by the damage of the diaphragm. For the option only, ready to install the double diaphragm.
● Applicable to CM-17L (except for V4U6 combination)
Air Chamber standard accessory
rate at the max.
|CM-13L||2.6- 13||2.2- 11||12||10||180||12||0.75/4P||39/54|
|CM-17L||3.4- 17||2.8- 14||16||13||200||42/58||6B×400|
◯The discharge rate was calculated at discharge pressure of 0.1MPaG, suction head of -0.01MPaAq equivalent to the same pipe diameter as in the pump; and_ normal temperature using clear water.
When your pump is of the standard specifications, use it in the ambient temperature range of 0-40℃, the liquid temperature range of 0-50℃ and_ about 0.06MPaA (0.6kgf/cm2A) of NPSH req.
|Motor||Standard||0.2 to 0.4kW: Three-phase, 4P, class E, 60Hz (200, 220V), 50Hz (200V), TEFC outdoor flange type|
|0.75 kW: Three-phase, 4P, class F, 60Hz (200, 220V), 50Hz (200V), TEFC outdoor flange type|
|Semi-standard||0.2 and_ 0.4kW: Three-phase, 4P, class E, 60Hz (400, 440V), 50Hz (400V), TEFC outdoor flange type|
|0.75kW: Three-phase, 4P, class F, 60Hz (380, 400, 440V), 50Hz (380，400, 415, 420V), TEFC outdoor flange type|
|Reducer||Planetary gear speed reducer, lubricated with molybdenum grease|
|Standard accessories||Air chamber, Simple tools, Mounting bolts and_ nuts (washer with M8 x 30L) x 4 sets, Instruction manual|
|Color||Munsell 2.5PB 2.5/7 for reducer, Munsell N7 for moto|
Simple comparison table for large-capacity diaphragm pumps
|Discharge accuracy||Air chamber|
When using with low discharge pressure, large motor power is required, so we recommend the large series CM-R.
If the air chamber is not installed, calculate the acceleration resistance.
Liquid-end parts construction
Liquid-end parts specifications
|Part name / combination||VV46||VVC||4446||V4U6|
|Applicable chemicals||High viscosity liquid,
|Sodium hypochlorite, dilute sulfuric acid, hydrochloric acid, nitric acid,
Ferric chloride, PAC, ferric sulfate / ferric sulfate,
Sulfate band, chromic acid
Organic solvent solution
|Slaked lime liquid,
|Valve guide, seat||PVC||SUS304|
The corrosion resistance of the material changes depending on the temperature and concentration, so the above usage example is a guide. Material combinations other than the above are also possible.
Afras is a type of fluororubber.
Viscosity of fluid
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