Tohkemy CM-R / CMD-R Chemical Pump

Manufacturer: Tohkemy Corporation
Model: CM-R / CMD-R

Features

Tohkemy Low-Pressure, High-Capacity Pump
Designed for high discharge volume at low pressure ( $\le$ 0.3 MPaG), offering higher flow rates with lower power consumption than the CM-L series.
Motor & Power Specifications
Standard / Semi-standard Voltages: 200V, 220V, 380V, 400V, 415V, 420V, 440V. Custom voltages and explosion-proof types available upon request (contact sales for delivery terms).
Outdoor Enclosure: TEFC outdoor flange-type motor standard.
Coupling Connection: Allows integration of increased-safety explosion-proof, flameproof/pressure-proof, or custom-specified motors.
Double Diaphragm Protection (Option)
Prevents corrosive liquid leaks from reaching reduction gears in case of primary diaphragm failure.
Applicable Models: CM-27R, CM-34R, CMD-54R, CMD-68R (excludes V4U6 combination).

Specification

Model	Discharge rate (L/min) at 0.1MPaG		Max. discharge rate at max. pressure (L/min)		Max. discharge pressure (MPaG)	Diameters of Pump head / Diaphragm (mm)		Stroke freq. (spm) / Reduction ratio		Max. stroke length (mm)	Connection Flange (JIS 10K)		Motor (kW/pole)	Weight (kg) (PVC/SUS)	Air Chamber φ×L(mm)
Model	60Hz	50Hz	60Hz	50Hz	Max. discharge pressure (MPaG)	Diameters of Pump head / Diaphragm (mm)		60Hz	50Hz	Max. stroke length (mm)	Connection Flange (JIS 10K)		Motor (kW/pole)	Weight (kg) (PVC/SUS)	Air Chamber φ×L(mm)
CM-4R	0.8–4	0.7–3.3	3.6	3	0.5	120		170 (1:10)	140 (1:10)	6.5	20A		0.2/4P	20/26	3^B×400
CM-6R	1.2–6	1–5	5.2	4.4		140				6.5	25A		0.2/4P	22/30	4^B×400
CM-9R	1.8–9	1.5–7.5	7.6	6.3		140				10	25A		0.4/4P	31/39	4^B×400
CM-14R	2.8–14	2.4–12	13	11	0.3	160				10	40A			32/45	4^B×600
CM-16R	3.2–16	2.7–13	14	12		160				12				32/45	4^B×600
CM-22R	4.4–22	3.6–18	20	17		180							0.75/4P	39/54	6^B×600
CM-27R	5.4–27	4.4–22	25	21		200								42/59	6^B×600
CM-34R	6.8–34	5.6–28	32	26		220					50A			45/65	8^B×600
CMD-32R	3.2–32	2.7–26	28	24		160	Double-head				40A	Double-head	0.4/4P	42/68	4^B×600	Double-head
CMD-44R	4.4–44	3.6–36	40	33		180							0.75/4P	51/82	6^B×600
CMD-54R	5.4–54	4.4–44	51	42		200								55/90	6^B×600
CMD-68R	6.8–68	5.6–56	63	53		220					50A			62/110	8^B×600

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 to 0.4kW: Three-phase, 4P, class E, 60Hz (200, 220V), 50Hz (200V), TEFC outdoor flange type
	Standard	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
	Semi-standard	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 motor

Liquid-end parts specifications

Part name / combination	VV46	VVYY	VVC	4446	V4U6
Applicable chemicals	Polymer flocculants, Sodium hydroxide, Ammonia water	Ferric chloride, PAC, Sodium hypochlorite, Aluminum sulfate, Ferrous sulfate, Ferric sulfate, Hydrochloric acid Dilute sulfuric acid, Chromic 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, sheet	PVC			SUS304
Check ball	SUS304	Hastelloy C	Ceramics	SUS304	Urethane
O-ring	Aflas®			PTFE	Aflas®
Spring	SUS316	Hastelloy C	–	SUS316

Take this table as a general guide, because the material corrosion depends on liquid temperature and concentrations. Other combinations of materials than above are also available.
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
Model	Viscosity
CM-R/CMD-R	1000mPa・s max.

※ The pump discharge rate varies depending on the liquid viscosity _and slurry. Please note that the pump performance values are based on data with clean water. When using a viscous liquid, please use a press-in piping.
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%	Necessary

Pump dimensions

CM-4R・6R 1L～3L

Model	φA	B	C	D	E
CM-1L	120	99	141	380	20A JIS10KFF
CM-4R			151
CM-2L			151
CM-6R	140	118	155		25A JIS10KFF
CM-3L	140	118	155		25A JIS10KFF

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

CM-9R～34R　6L～17L

Model	φA	B	C	D	F
CM-9R,6L	140	118	210	440	25A JIS10KFF
CM-14R,16R,9L	160	151(141)	215	440	25A JIS10KFF
CM-22R,13L	180	162(152)		480	40A JIS10KFF
CM-27R,17L	200	173(163)			40A JIS10KFF
CM-34R	220	206(184)	220		50A JIS10KFF

Figures in parentheses are only applicable to VVC combination.

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

CMD-32R～68R

Model	φA	B	C	D	F
CMD-32R	160	151(141)	215	440	40A JIS10KFF
CMD-44R	180	162(152)		440
CMD-54R	200	173(163)		480
CMD-68R	220	206(184)	220	480	50A JIS10KFF

Figures in parentheses are only applicable to VVC combination.

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

Liquid-end parts construction

P/N	Part name
1	Discharge-side valve case
2	Valve guide
3	Valve seat
4	Check ball
5	O-ring
6	O-ring
7	Pump head mounting bolt
8	Pump head
9	Diaphragm lock nut
10	Suction side valve seat
11	Connection flange
12	Diaphragm
13	Diaphragm washer
15	Sub-ring
20	Diaphragm seat
21	Spring