Qdos CWT pump delivers major advance in long-life chemical metering
Watson-Marlow Fluid Technology Solutions unveils the next performance level in its range of...
News/Insight
Call +1 800 282 8823
Delivering flow rates that remain constant right up to 9 bar Qdos peristaltic chemical metering and dosing pumps give users a unique advantage over diaphragm metering pumps.
Qdos pumps offer long maintenance intervals - reducing the impact of process downtime and lowering the overall cost of ownership.
A diaphragm metering pump often requires a range of high maintenance ancillary items to function.
Qdos pumps eliminate the need for ancillary equipment while ensuring accurate, linear and repeatable metering across all process conditions.
Max. flow rate | 2000 ml/min |
Min. flow rate | 0.1 ml/min |
Max. flow rate | 31.7 USGPH |
Min. flow rate | 0.001 USGPH |
Max. operating pressure | 9 bar |
Max. operating pressure | 130 psi |
Ambient Temperature Range | 5 – 45 °C |
Ambient Temperature Range | 41 – 113 °F |
Control types | Manual, PROFIBUS®, Remote, Universal, Universal relay, Universal+, Universal+ relay |
Standards | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 |
Drive standards | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 |
Drive ingress protection | IP66, NEMA 4X |
Power supply | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC |
Drive power supply | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC |
Technical Summary table lists features available within the range. See ‘Technical specifications’ tab for model specific information.
qdos | qdos remote | |||
---|---|---|---|---|
Speed (rpm) | Flow ml/min (USGPH)* | Speed (rpm) | Flow ml/min(USGPH)* | |
qdos 20 | 0.017-55 | 0.1-333 (0.001-5.3) | 0.034-55 | 0.2-333 (0.003-5.3) |
qdos 20 PU | 0.017-55 | 0.1-450 (0.001–7.13) | NA | NA |
*accuracy ±1%, repeatability ±0.5%
qdos | qdos remote | |||
---|---|---|---|---|
Speed (rpm) | Flow ml/min (USGPH)* | Speed (rpm) | Flow ml/min(USGPH)* | |
qdos 30 | 0.025-125 | 0.1-500 (0.001-7.93) | 0.078-125 | 0.3-500 (0.005-7.93) |
*accuracy ±1%, repeatability ±0.5%
qdos | qdos remote | |||
---|---|---|---|---|
Speed (rpm) | Flow ml/min (USGPH)* | Speed (rpm) | Flow ml/min(USGPH)* | |
qdos 60 | 0.013-125 | 0.1-1000 (0.001-15.85) | 0.078-125 | 0.6-1000 (0.01-15.85) |
qdos 60 PU | 0.013-125 | 0.1-1000 (0.001-15.85) | 0.078-125 | 0.6-1000 (0.01-15.85) |
*accuracy ±1%, repeatability ±0.5%
qdos | qdos remote | |||
---|---|---|---|---|
Speed (rpm) | Flow ml/min (USGPH)* | Speed (rpm) | Flow ml/min(USGPH)* | |
qdos 120 | 0.006-140 | 0.1-2000 (0.001-31.7) | 0.078-125 | 1.25-2000 (0.02-31.7) |
*accuracy ±1%, repeatability ±0.5%
Qdos® CWT™ | Qdos® CWT™ remote | |||
---|---|---|---|---|
Speed (rpm) | Flow ml/min (USGPH)* | Speed (rpm) | Flow ml/min(USGPH)* | |
0.025-125 | 0.1-500 (0.001-7.93) | 0.078-125 | 0.3-500 (0.005-7.93) | |
*accuracy ±1%, repeatability ±0.5% | ||||
*Flow rates can be affected by discharge pressure |
Qdos 20 | Qdos 30 | Qdos 60 | Qdos 120 | Qdos CWT | |
Max. operating pressure | 7 bar | 7 bar | 7 bar | 4 bar | 9 bar |
Max. operating pressure | 100 psi | 100 psi | 100 psi | 60 psi | 130 psi |
Ambient Temperature Range | 5 – 40 °C | 5 – 45 °C | 5 – 45 °C | 5 – 45 °C | 5 – 40 °C |
Ambient Temperature Range | 41 – 104 °F | 41 – 113 °F | 41 – 113 °F | 41 – 113 °F | 41 – 104 °F |
Weight | 5.7 kg | 5.05 kg | 5.7 kg | 5.7 kg | 6.8 kg |
Weight | 12.6 lbs | 11.1 lbs | 12.6 lbs | 12.6 lbs | 15 lbs |
Control types | Manual, PROFIBUS®, Remote, Universal, Universal+ | Manual, PROFIBUS®, Remote, Universal, Universal+ | Manual, PROFIBUS®, Remote, Universal, Universal+ | Manual, PROFIBUS®, Remote, Universal, Universal+ | Manual, PROFIBUS®, Remote, Universal, Universal relay, Universal+, Universal+ relay |
Standards | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 |
Drive standards | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 | CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 |
Drive ingress protection | IP66, NEMA 4X | IP66, NEMA 4X | IP66, NEMA 4X | IP66, NEMA 4X | IP66, NEMA 4X |
Drive humidity | 80% up to 31°C, 88°F, decreasing linearly to 50% at 40°C, 104°F | 80% up to 31°C, 88°F, decreasing linearly to 50% at 40°C, 104°F | 80% up to 31°C, 88°F, decreasing linearly to 50% at 40°C, 104°F | 80% up to 31°C, 88°F, decreasing linearly to 50% at 40°C, 104°F | 80% up to 31°C, 88°F, decreasing linearly to 50% at 40°C, 104°F |
Drive noise | <70dB(A) at 1m | <70dB(A) at 1m | <70dB(A) at 1m | <70dB(A) at 1m | <70dB(A) at 1m |
Max. altitude | 2000 m | 2000 m | 2000 m | 2000 m | 2000 m |
Power supply | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC |
Drive power supply | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC | 100 to 240 VAC 50 to 60 Hz 190 VA, 12 to 24 V DC |
Model | A | B | C | D | E | F | G | H | I |
---|---|---|---|---|---|---|---|---|---|
qdos 20 | 234mm (9.2”) | 214mm (8.4”) | 104.8mm (4.1”) | 266mm (10.5”) | 43mm (1.7”) | 173mm (6.8”) | 40mm (1.6”) | 140mm (5.5”) | 10mm (0.4”) |
*Optional relay module |
Model | A | B | C | D | E | F | G | H | I |
---|---|---|---|---|---|---|---|---|---|
qdos 30 | 234mm (9.2”) | 214mm (8.4”) | 71.5mm (2.8”) | 233mm (9.2”) | 43mm (1.7”) | 173mm (6.8”) | 40mm (1.6”) | 140mm (5.5”) | 10mm (0.4”) |
*Optional relay module |
Model | A | B | C | D | E | F | G | H | I |
---|---|---|---|---|---|---|---|---|---|
qdos 60 | 234mm (9.2”) | 214mm (8.4”) | 104.8mm (4.1”) | 266mm (10.5”) | 43mm (1.7”) | 173mm (6.8”) | 40mm (1.6”) | 140mm (5.5”) | 10mm (0.4”) |
*Optional relay module |
Model | A | B | C | D | E | F | G | H | I |
---|---|---|---|---|---|---|---|---|---|
qdos 120 | 234mm (9.2”) | 214mm (8.4”) | 104.8mm (4.1”) | 266mm (10.5”) | 43mm (1.7”) | 173mm (6.8”) | 40mm (1.6”) | 140mm (5.5”) | 10mm (0.4”) |
*Optional relay module |
A | B | C | D | E | F | G* | H | I | J | K | L |
---|---|---|---|---|---|---|---|---|---|---|---|
234 mm (9.2”) | 214 mm (8.4”) | 146 mm (5.8”) | 77.4 mm (3.1”) | 11.5 mm (0.5”) | 150 mm (5.9”) | 43 mm (1.7”) | 117.9 mm (4.6”) | 173 mm (6.8”) | 40 mm (1.6”) | 140 mm (5.5”) | 10 mm (0.4”) |
*Optional relay module |
Bearings | Stainless steel, Steel |
Driveshaft | Stainless steel 440C |
Drive casework | 20% glass filled PPE/PS |
Drive casework coating | 20% glass filled PPE/PS |
Fluid connectors | Polypropylene, PVDF |
Drive keypad/HMI | Polyester |
Lubricant | PFPE based |
Pumphead body assembly | 30 % glass filled PPO/PS, 30% glass filled PPO/PS, 40 % glass filled PPS, 40% glass filled PPS |
Pumphead rotor assembly | Glass filled Nylon, PP (polypropylene), Stainless steel |
Tubing | PU, Santoprene, SEBS |
Membrane | EPDM |
Fluid contact element | EPDM, PEEK, PP |
Fluid connection port | Polypropylene |
Fluid connection seals | Santoprene |
Pumphead enclosure | 40% glass filled PPS |
Pumphead enclosure seal | EPDM, NBR |
Rotor | Stainless steel 303 |
Operational modes | Manual | Remote | PROFIBUS | Universal | Universal+ |
---|---|---|---|---|---|
Manual | ✔ | ✔ | ✔ | ✔ | |
PROFIBUS—bus speed 9.6–1,500 kb/s | ✔ | ||||
Contact | ✔ | ✔ | |||
4-20mA | ✔ | ✔ | ✔ | ||
Fault reporting | ✔ | ✔ | ✔ | ✔ | ✔ |
Features | Manual | Remote | PROFIBUS | Universal | Universal+ |
---|---|---|---|---|---|
Numerical flow display | ✔ | ✔ | ✔ | ✔ | |
Numerical speed display | ✔ | ✔ | ✔ | ✔ | |
Fluid level monitor | ✔ | ✔ | ✔ | ✔ | |
Max (prime) | ✔ | ✔ | ✔ | ✔ | |
Auto restart (after power restored) | ✔ | ✔ | ✔ | ✔ | ✔ |
Fluid recovery | ✔ | ✔ | ✔ | ✔ | |
Leak detection | ✔ | ✔ | ✔ | ✔ | ✔ |
3.5” (88.9mm) colour TFT display | ✔ | ✔ | ✔ | ✔ | |
LED Pump status icons | ✔ |
Control methods | Manual | Remote | PROFIBUS | Universal | Universal+ |
---|---|---|---|---|---|
Input/Output Options | L | L | L or R | L or R | |
Manual control capability | ✔ | ✔ | ✔ | ✔ | |
4-20mA input | ✔ | ✔ | ✔ | ||
4-20mA input two point calibration | ✔ | ||||
4-20mA output | ✔ | ✔ | |||
Contact input (pulse/batch) | L or R | L or R | |||
Manual speed adjustment range | 3333:1 (Qdos 20) 5000:1 (Qdos 30) 10000:1 (Qdos 60) 20000:1 (Qdos 120) |
3333:1 (Qdos 20) 5000:1 (Qdos 30) 10000:1 (Qdos 60) 20000:1 (Qdos 120) |
3333:1 (Qdos 20) 5000:1 (Qdos 30) 10000:1 (Qdos 60) 20000:1 (Qdos 120) |
3333:1 (Qdos 20) 5000:1 (Qdos 30) 10000:1 (Qdos 60) 20000:1 (Qdos 120) |
|
Minimum motor adjustment speed increment (Dependent upon the operating mode and chosen flow unit) |
0.006 | 0.078 | 0.100 | 0.003 | 0.003 |
4-20mA resolution | 1600:1 | 1600:1 | 1600:1 | ||
Profibus speed resolution | 550:1 (Qdos 20) 1250:1 (Qdos 30) 1250:1 Qdos 60 1400:1 (Qdos 120) |
||||
Run stop input | ✔ | ✔ | ✔ | ||
Run status output | ✔ | ✔ | L | ||
Alarm output | ✔ | ✔ | L | ||
Four configurable relay outputs | R | ||||
Remote fluid recovery | ✔ | R | R |
PROFIBUS | Manual | Remote | PROFIBUS | Universal | Universal+ |
---|---|---|---|---|---|
Speed set point | ✔ | ||||
Speed feedback | ✔ | ||||
Flow calibration function | ✔ | ||||
Hours run | ✔ | ||||
Revolution counter | ✔ | ||||
Leak detection | ✔ | ||||
Low fluid level alarm | ✔ | ||||
Diagnostic feedback | ✔ |
Security | Manual | Remote | PROFIBUS | Universal | Universal+ |
---|---|---|---|---|---|
Keypad lock | ✔ | ✔ | ✔ | ✔ | |
PIN lock to protect set up | ✔ | ✔ | ✔ | ✔ |
*Control options - Universal and Universal+ models | ||
---|---|---|
Variant | Standard pump (L) | Relay Module (R) |
Input | 5–24V DC | 5-24V DC or 110V AC |
Output | Open collector | Contact rating 110V AC, 4A 30V DC, 4A |
Industry leading ReNu and CWT pumphead technology is at the core of the Qdos pump. This ensures the delivery of accurate and repeatable flow for fluids of wide ranging viscosities.
ReNu and CWT pumpheads provides accurate, linear and repeatable low pulse flow under varying process conditions.
Safe, no tools maintenance plus an integral leak detector which eliminates operator exposure to chemicals.
Qdos pumps can be ordered with the ReNu or CWT pumphead mounted on the left or right side of the pump.
Pumphead | Tube material | Max operating pressure | Part number |
---|---|---|---|
ReNu 20 |
SEBS Optimised for sodium hypochlorite applications with discharge pressure from 60 to 100 psi Food-grade compliance: FDA regulations 21 CFR177.1680 and EC1935/2004, EU regulation 10/2011
|
7 bar | 0M3.1800.PFP |
PU Optimised for polymers with discharge pressureup to 4 bar. Please see the chemical compatibility section for further information on suitability with other specific chemicals Food-grade compliance: FDA regulations 21 CFR177.1680 and EC1935/2004, EU regulation 10/2011 |
4 bar | 0M3.1500.PFP | |
ReNu 30 |
Santoprene A general purpose pumphead with a high chemical compatibility across a range of applications Food-grade compliance: FDA regulations 21 CFR177.1680 |
7 bar | 0M3.2200.PFP |
SEBS Optimised for sodium hypochlorite, sulfuric acid and hydrogen peroxide applications with discharge pressure up to 4 bar. Please see the chemical compatibility section for further information on suitability with other specific chemicals Food-grade compliance: FDA regulations 21 CFR177.1680 and EC1935/2004, EU regulation 10/2011 |
4 bar | 0M3.2800.PFP | |
ReNu 60 |
Santoprene A general purpose pumphead with a high chemical compatibility across a range of applications Food-grade compliance: FDA regulations 21 CFR177.1680 |
7 bar | 0M3.3200.PFP |
SEBS Optimised for sodium hypochlorite, sulfuric acid and hydrogen peroxide applications with discharge pressure up to 4 bar. Please see the chemical compatibility section for further information on suitability with other specific chemicals Food-grade compliance: FDA regulations 21 CFR177.1680 and EC1935/2004, EU regulation 10/2011 |
4 bar | 0M3.3800.PFP | |
PU Optimised for polymers with discharge pressure up to 5 bar. Please see the chemical compatibility section for further information on suitability with other specific chemicals. Food-grade compliance: FDA regulations 21 CFR177.1680 and EC1935/2004, EU regulation 10/2011 |
5 bar | 0M3.3500.PFP | |
ReNu 120 |
Santoprene A general purpose pumphead with a high chemical compatibility across a range of applications |
4 bar | 0M3.4200.PFP |
CWT30 EPDM |
EPDM and PEEK fluid contact element A general purpose pumphead with a high chemical compatibility across a range of applications |
9 bar | 0M3.5700.PFP |
Qdos hose connector kit offers flexible, kink resistant and robust hoses which have been designed especially for the Qdos chemical dosing pump range. The chemically resistant polytetrafluoroethylene (PTFE) hose, when used in combination with a Qdos dosing pump, provides a simple, safer and secure connection.
Description | Partcode |
---|---|
ReNu 20 pumphead PU / PFPE 4 bar (60psi) | 0M3.1500.PFP |
ReNu 20 pumphead SEBS / PFPE 7 bar (100psi) | 0M3.1800.PFP |
Description | Partcode |
---|---|
ReNu 30 pumphead Santoprene / PFPE 7 bar (100psi) | 0M3.2200.PFP |
ReNu 30 pumphead SEBS / PFPE 4 bar (60psi) | 0M3.2800.PFP |
Description | Partcode |
---|---|
ReNu 60 pumphead Santoprene / PFPE 7 bar (100psi) | 0M3.3200.PFP |
ReNu 60 pumphead SEBS / PFPE 4 bar (60psi) | 0M3.3800.PFP |
ReNu 60 pumphead PU 5 bar (70psi) | 0M3.3500.PFP |
Description | Partcode |
---|---|
ReNu 120 pumphead Santoprene / PFPE 4 bar (60psi) | 0M3.4200.PFP |
Description | Partcode |
---|---|
CWT 30 pumphead EPDM/PEEK/PFPE 9 bar (130 psi) | 0M3.5700.PFP |
Watson-Marlow Fluid Technology Solutions unveils the next performance level in its range of...
News/Insight
View full case study reducing energy usage and greenhouse gas emissions
Case Study
View the Qdos doing pumps case study.
Case Study
Qdos hose connector kits are flexible and robust hoses designed for simple safer and secure connection of a Qdos chemical metering pump into an existing process line
Flexible hose assemblies
Flow rates to 600 L/h (158.5 USGPH) and pressures up to 7 bar (102 psi).
Pumps - cased pumps
Flow rates to 3.04 GPH (190 ml/min) and pressures up to 30 psi. Speed control up to 10,000:1.
Pumps - cased pumps
Flow rates from 2 μl/min to 2000 ml/min and pressures up to 30 psi. Single or multi channel.
Pumps - cased pumps
Flow rates to 55 GPH (3.5 L/min) and pressures up to 100 psi. Precise 2200:1 speed control range.
Pumps - cased pumps
Flow rates to 4.76 GPM (18 L/min) and pressures up to 60 psi. Precise 2650:1 speed control range.
Pumps - cased pumps
Flow rates to 8.8 GPM (33 L/min) and pressures up to 30 psi. Precise 3600:1 speed control range.
Pumps - cased pumps
Flow rates from 5.33 ml/min to 20 L/min (virtually pulsation free). Precise 4000:1 speed control range.
Pumps - cased pumps
To order a product or ask a question