Manufacturer: Tohkemy Corporation
Model: CM-Y
Features
Best suited for proportional dosing control by use of control motor
The CM-Y is a pump designed with a special-shaped cam and a two-stage check valve structure on the discharge side, enabling the discharge volume to maintain linearity down to the minimum level.
It must be the most suitable for chemical dosing if the input, such as flow rate and water quality, would fluctuate much. In this case, select the proportional dosing control of stroke adjustment by use of control motor. (Refer to Control motor CMK.)
Various power source specification
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 (coupling connection)
Since it can be equipped with the specified manufacturer’s increased-safety explosion-proof motor or a pressure-resistant explosion-proof motor, it can be used safely even in hazardous environments.
Other inverter motors and VS motors, among other leg-mounted motors, can also be attached to a common base via coupling connection.
Specifications
| Model | Discharge
rate(mL/min)
At 0.1MPaG | Max. discharge rate at the
max. discharge pressure
(ml/min) | Max.
discharge
pressure
(MPaG) | Diameters of
Pump head /
Diaphragm
(mm) | Stroke frequency (spm)
/ Reduction ratio | Max.
stroke
length
(mm) | Motor
(kW) | Weight
(kg) |
|---|
| 60Hz | 50Hz | 60Hz | 50Hz | 60Hz | 50Hz |
|---|
| CM-2Y | 5-25 | 4-20 | 20 | 16 | 1.0 | φ70 | 18/1:90 | 15/1:90 | 3.5 | 0.1 | PVC/About 13
SUS/About 16 |
|---|
| CM-6Y | 12-60 | 10-50 | 55 | 46 | 34/1:50 | 28/1:50 | 4.5 |
|---|
| CM-10Y | 20-100 | 16-80 | 92 | 77 | φ100 | 18/1:90 | 15/1:90 | 3.5 |
|---|
| CM-25Y | 50-250 | 42-210 | 231 | 192 | 34/1:50 | 28/1:50 | 4.5 |
|---|
| CM-45Y | 90-450 | 74-370 | 416 | 347 | 0.7 | 61/1:30 | 51/1:30 |
|---|
| CM-85Y | 170-850 | 140-700 | 777 | 645 | 102/1:16 | 85/1:16 |
|---|
| CM-120Y | 240-1200 | 200-1000 | 1068 | 890 | 0.5 | 6.0 |
|---|
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 0.06MPa Abs. of NPSH req.
Common specifications
| Connection | Hose | φ6 × φ11mm bladed soft PVC hose _or φ6 × φ9mm polyethylene hose |
|---|
| Union | R3 / 8 male screw |
|---|
| Flange | 15A JIS 10K flange |
|---|
| Motor | Standard | Three-phase, 4P, class E, 60Hz (200/220V), 50Hz (200V), TEFC outdoor flange type |
|---|
| Semi-standard | 7-rated three-phase, 4P, class E, 60Hz (380/400/440V), 50Hz (380/400/415/420V), TEFC outdoor flange type |
|---|
| Reducer | Planetary gear two-stage combination, lubricated with molybdenum grease |
|---|
Standard
accessories | Hose | Hose x 4m, Foot valve, Check valve, Simple tools, Mounting bolts and_ nuts (M8 x 30L) x 4 sets, Instruction manual |
|---|
| Union | Special water socket (R3/8 x 13A) x 3 pcs, Simple tools, Mounting bolts and_ nuts (M8 x 30L) x 4 sets, Instruction manual |
|---|
| Flange | Simple tools, Mounting bolts and_ nuts (M8 x 30L) x 4 sets, Instruction manual |
|---|
| Color | Munsell 2.5PB 2.5/7 for reducer, Munsell N7 for motor |
|---|
The contents of standard accessories are different for XXU (for slurry fluid), 4446 (SUS) and TTT (all Teflon) of liquid-end.
Liquid-end parts specifications
| Part name/Combination | VVF | AVF | AV46 | XXU | 4446 | TTT |
|---|
Applicable
chemicals | PAC | Hydrochloric acid,
Dilute sulfuric acid | Ferric chloride
Sodium hypochlorite
Aluminum sulfate | Sodium
hydroxide, | Polymer flocculants,
Ammonia water | Slaked lime,Sludge,
Powdered activated carbon
(solution) | Methanol, Organic solvent | Strong
acid |
|---|
| Pump head | PVC | Acryl | Acryl | Acryl(SUS RF) | SUS304 | PTFE |
|---|
| Diaphragm | PTFE | PTFE | PTFE | PTFE | PTFE | PTFE |
|---|
| Connector | PVC | PVC | PVC | PVC(SUS RF) | SUS304 | PTFE |
|---|
| Check ball | FKM | FKM | SUS304 | Urethane | SUS304 | PTFE |
|---|
| Spring | – | – | SUS316 | – | SUS316 | – |
|---|
| O-ring | PTFE | PTFE | PTFE | PTFE | PTFE | PTFE |
|---|
Hose
connection | φ6 x φ11mm
braided soft PVC | φ6 x
φ9mm PE | φ6 x φ11mm
braided soft PVC | φ6 x φ9mm
PE | φ6 x φ11mm braided soft PVC | φ6 x φ9mm PE
or_ fluororesin |
|---|
Since chemical resistance of material varies according to temperature and concentration of fluid, the above applicable chemicals are basic examples.
Since there are two kinds of connection hose for VVF and AV46 combination, for selection, specify a chemical name or hose size to be used.
Viscosity of fluid
Refer to the chart below for transferring high-viscous fluid such as Polymer
| Model/Combination | φ6 x φ11mm hose | 15A flange | Liquid-end combination |
|---|
| CM-2Y-10Y | 200mPa･s max. | 700mPa･s max. | AV46 |
|---|
| CM-25Y | 100mPa･s max. |
|---|
| CM-45Y | Not used |
|---|
| CM-85Y・120Y | Not used | 500mPa･s max. |
|---|
Pump Dimensions
| P/N | Part name |
|---|
| 1 | Motor |
| 2 | Reducer |
| 3 | Liquid-end parts |
| 4 | Flow rate control dial |
| 5 | Dial set bolt |
| 6 | Pump base |
Flange connection
| Model | φA | B | C | D |
|---|
| CM-2Y,6Y | 70 | 145 | 105 | 15A JIS10KFF |
| CM-10Y～120Y | 100 | 160 | 120 |
Hose connection
| Model | φA | B | C |
|---|
| CM-2Y,6Y | AVF,VVF
TTT,XXU | 70 | 95 | 70 |
| 4446,AV46 | 100 | 75 |
| CM-10Y～120Y | AVF,VVF
TTT,XXU | 100 | 110 | 85 |
| 4446,AV46 | 115 | 90 |
Liquid-end parts construction
| P/N | Part name |
|---|
| 1 | Socket |
| 2 | Hose lock nut |
| 3 | Discharge-side 1st stage connector |
| 4 | Discharge-side 2nd stage connector |
| 5 | Suction-side valve seat |
| 6 | Check ball |
| 7 | Spring |
| 8 | O-ring |
| 9 | Pump head |
| 10 | Pump head mounting bolt |
| 11 | Diaphragm lock nut |
| 12 | Diaphragm |
| 13 | Diaphragm washer |
| 14 | Sub-ring |
| 15 | Connection flange |
