Tohkemy CM-W Chemical Pump

Manufacturer: Tohkemy Corporation
Model: CM-W

Features

Low-pressure medium-capacity metering pump of Tohkemy
This pump is suitable for large-capacity metering at low pressure (0.3MPa or lower).
It is possible to dose 10L/min (by CM-1000W) with 0.2kW motor which is used for CM-G series.
Power supply specifications
Various power source motors lined up as standard and semi-standard.
・200V　・220V　・380V　・400V　・415V　・420V　・440V
Totally-enclosed fan-cooled (TEFC) outdoor flange type motor.
Possible to be equipped with a safety-increase explosion-proof motor, a pressure and explosion-proof motor
The pump can be equipped with a safety-increase explosion-proof, a pressure and explosion-proof motor of designated manufacturer, to be used in dangerous condition without anxiety. In addition, when controlling the pump discharge rate by use of invertor, the pump can be easily equipped with an exclusive invertor motor.
Air chamber as a standard accessory (CM-500/1000/1500W)
Air chamber is a standard accessory for CM-500/1000/1500W.
Install the air chamber at the top end of straight discharge piping of pump.

Specification

CM-100W / 200W type		CM-500W / 1000W / 1500W type
low pressure Small capacity	The basic form of a metering pump. Simple structure pump A wide range of accessories can be used to connect flanges _and hoses.	low pressure Medium capacity	The special drive cam _and newly designed wetted parts reduce the drive resistance _and increase the discharge rate compared to the conventional model.

Model	Discharge rate(mL/min) At 0.1MPaG		Max. discharge rate at the max. discharge pressure (ml/min)		Max. discharge pressure (MPaG)	Head diameter / Diaphragm diameter (mm)	Stroke frequency (spm) / Reduction ratio		Max. stroke length (mm)	Piping specification	Motor (kW)	Weight (kg)
Model	60Hz	50Hz	60Hz	50Hz	Max. discharge pressure (MPaG)	Head diameter / Diaphragm diameter (mm)	60Hz	50Hz	Max. stroke length (mm)	Piping specification	Motor (kW)	Weight (kg)
CM-100W	280-1400	230-1160	1200	1000	0.5	φ130/ φ100	89/1:19	73/1:19	3	20A Union	Three 0.2	about 17
CM-200W	530-2650	440-2200	2400	2000	0.5	φ130/ φ100	170/1:10	140/1:10	3	20A Union		about 17
CM-500W	1320-6600	1100-5500	6000	5000	0.3	φ195/ φ150	154/1:11	127/1:11	3.9	25A Flange		about 27
CM-1000W	2400-12000	2000-10000	2400-12000	2000-10000					7.2	40A Flange		about 27
CM-1500W	3600-18000	3000-15000	3600-18000	3000-15000					10.5	40A Flange	Three 0.4	about 29

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 specification, use it in the ambient temperature range of 0-40℃, the liquid temperature range of 0-50℃ and about 0.06MPa Abs. of NPSH req.
A connection flange and coupling set is additionally required to install the specified motor, which is not standard, in CM-100/200W.
Common specifications

Connection	100/200W	20A PVC union
	500W	25A JIS 10K flange
	1000/1500W	40A JIS 10K flange
Motor	Standard	Three-phase, 4P, class E, 60Hz (200/220V), 50Hz (200V), TEFC outdoor flange type
	Semi-standard	Three-phase, 4P, class E, 60Hz (380/400/440V), 50Hz (380/400/415/420V), TEFC outdoor flange type
	Semi-standard	Safety-increase explosion-proof type, pressure and_ explosion-proof type, inverter motor, etc.
Reducer		Worm reduction gear, lubricated with viscosity 220mm2/s worm gear oil is recommended.
Standard accessories		Simple tools 1 set, Pump mounting bolts M8 x 30L and_ nuts(w/washers),Air chamber(except for CM-100/200W)
Color		Munsell 2.5PB 2.5/7 for reducer, Munsell N7 for motor

Liquid-end parts specifications

Part name/Combination	PPFC	PPEC	PPF4	PPE4	VVFC
Applicable chemicals	Hydrochloric acid, Sulfuric acid, PAC,35% or_ lower Hydrogen peroxide, Ferric chloride	Sodium hydroxide, Ammonia water	Polymer flocculants (fluid-undiluted, fluiddiluted solution) Others, Viscous fluid	Polymer flocculants (powder-diluted solution) Others, Viscous fluid	Sodium hypochlorite, Other strong acids
Pump head	PP				PVC
Diaphragm	PTFE
Connector	PP				PVC
Valve guide	PP				PVC
Valve seat	FKM	EPDM	FKM	EPDM	FKM
Check ball	Ceramics		SUS304		Ceramics
O-ring	Aflas®

*Since chemical resistance of material varies according to temperature and_ concentration of fluid, the above applicable chemicals are basic examples. It is possible to combine different materials.
*It is not suitable for transferring fluid containing slurry.　*Aflas® is a registered trademark of AGC Inc.
Viscosity of fluid
Refer to the chart below for transferring high-viscous fluid such as Polymer flocculants.

Model/Combination	Viscosity	Liquid-end parts combination
CM-100W CM-200W	1000mPa ･s max	PPF4/PPE4
CM-500W
CM-1000W CM-1500W

Pump Dimensions
CM-100/200W

P/N	Part name
1	Motor
2	Reducer
3	Liquid-end parts
4	Pump frame
5	Flow rate control dial
6	Dial set bolt
7	Pump base

CM-500/1000/1500W

Model	A	B
CM-500W	525	25A JIS 10K
CM-1000W	525	40A JIS 10K
CM-1500W	545	40A JIS 10K

P/N	Part name
1	Motor
2	Reducer
3	Liquid-end parts
4	Pump frame
5	Flow rate control dial
6	Dial set bolt
7	Pump base

Liquid-end parts construction

P/N	Part name
S1	Diaphragm
S2	Backup ring
S3	Pump head
S4	Connector
S5	Lock nut
S6	Valve guide
S7	Valve seat
S8	Check ball
S9	Union socket
O5	O-ring P-34
O6	O-ring P-22
B13	Pump head mounting bolt