Medium-pressure large-capacity pump of Tohkemy

This chemical injection pump is suitable for cases with a high discharge volume and medium discharge pressure (0.5 MPaG or less).

Motor specification

●Various power source motors lined up as standard and semi-standard.
・200V　 ・220V　 ・380V　 ・400V　 ・415V　 ・420V　 ・440V

●Possible to be supported with different voltage and explosion proof type.
(Please contact to ask us about delivery terms.)

Outdoor specifications

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

* Click here for the control motor CMK series >>

Model	Discharge rate(L/min) At 0.1MPaG		Max. discharge rate at the max. discharge pressure (L/min)		Max. discharge pressure (MPaG)	Diameters of Pump head / Diaphragm (mm)		Stroke frequency (spm) / Reduction ratio		Max. stroke length (mm)	Connection flange (JIS 10K)		Motor (kW/pole)	Weight (kg) (PVC/SUS)	Air chamber φ×L(mm)
	60Hz	50Hz	60Hz	50Hz				60Hz	50Hz
CM-1L	0.3-1.4	0.2-1.2	1.3	1.1	0.7	120		56/1:30	47/1:30	6.3	20A		0.2/4P	20/26	3B×400
CM-2L	0.5-2.4	0.4-2.0	2.1	1.8				100/1:16	80/1:16	6.5
CM-3L	0.7-3.6	0.6-3.0	3.3	2.8		140		108/1:16	89/1:16		25A			22/30	4B×400
CM-6L	1.2-6.0	1.0-5.0	5.2	4.4						10			0.4/4P	31/39
CM-9L	1.8-9.0	1.5- 7.5	8.2	6.8	0.5	160					40A			32/45	4B×600
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.

Common specifications

 

Motor	Standard	0.2 _and 0.4kW: Three-phase, 4P, class E, 60Hz (200, 220V), 50Hz (200V), Totally-enclosed external fan outdoor flange type
		0.75 kW: Three-phase, 4P, class F, 60Hz (200, 220V), 50Hz (200V), Totally-enclosed external fan outdoor flange type
	Semi-standard	0.2 _and 0.4kW: Three-phase, 4P, class E, 60Hz (380, 400, 440V), 50Hz (380, 400, 415, 420V), Totally-enclosed external fan 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 (w/washer M8 x 30L) x 4 sets, Instruction manual
Color		Munsell 2.5PB 2.5/7 for reducer, Munsell N7 for motor

 

Liquid-end parts specifications

Part name / combination	VV46	VVC	4446	V4U6
Applicable chemicals	Polymer coagulant, Sodium hydroxide, Ammonia water	Ferric chloride, PAC, Sodium hypochlorite, Aluminum sulfate, Ferrous sulfate and ferric sulfate, Dilute sulfuric acid, Hydrochloric acid	Methanol, Organic solvent solution	Slaked lime, Sludge, Powdered activated carbon (solution)
Pump head	PVC		SUS304	PVC
Diaphragm	PTFE			Urethane/PTFE
Valve case	PVC		SUS304	PVC
Valve guide, seat	PVC		SUS304
Check ball	SUS304	Ceramics	SUS304	Urethane
O-ring	Afras		PTFE	Afras
Spring	SUS316	–	SUS316

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

Model/Combination	Viscosity
CM-L	1000mPa・s max.

Simple comparison table for large-capacity diaphragm pumps

Model	Stroke frequency (spm)	Normal pressure (MPaG)	Discharge accuracy	Air chamber
R type	170/140(60/50Hz)	0.2-0.3	±5%	Necessary
L type	56-108/47-89(60/50Hz)	0.3-0.5	±2%

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.

Pump dimensions

Liquid-end parts construction