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Qdos metering pump

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Overview

Qdos chemical metering pumps

Delivering flow rates that remain constant right up to 7 bar Qdos peristaltic chemical metering 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.

Eliminate ancillary equipment

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.

Features and benefits

Cut chemical cost through higher accuracy metering
Simple drop-in installation eliminates ancillary equipment
Reduced maintenance with single, no-tools, component replacement
Cost of ownership is less than that of a diaphragm pump
Flow rates from 0.1 to 2,000 ml/min at up to 7 bar
No backpressure valves, pulsation dampener, degassing valves, foot valves, strainers or float switches

Technical summary

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	7 bar
Max. operating pressure	100 psi
Min. ambient temperature	5 °C
Max. ambient temperature	45 °C
Min. ambient temperature	41 °F
Max. ambient temperature	113 °F
Control types	Manual, Profibus, Remote, Universal, Universal relay, Universal+, Universal+ relay
Standards	CE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61
Ingress rating	IP66, NEMA 4X
Power supply	100-240 VAC 50-60 Hz 190 VA, 12-24 V DC

Technical Summary table lists features available within the range. See ‘Technical specifications’ tab for model specific information.

Performance

Qdos 20 performance

	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	0.1-484 (0.001–7.67)	NA	NA

*accuracy ±1%, repeatability ±0.5%

Qdos 30 performance

	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 60 performance

	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)

*accuracy ±1%, repeatability ±0.5%

Qdos 120 performance

	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 performance

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

Specifications

Technical specifications

	Qdos 20	Qdos 30	Qdos 60	Qdos 120	Qdos CWT
Max. flow rate	484 ml/min	500 ml/min	1000 ml/min	2000 ml/min	500 ml/min
Min. flow rate	0.1 ml/min	0.1 ml/min	0.1 ml/min	0.1 ml/min	0.1 ml/min
Max. flow rate	7.67 usgph	7.93 usgph	15.85 usgph	31.7 usgph	7.93 usgph
Min. flow rate	0.001 usgph	0.001 usgph	0.001 usgph	0.001 usgph	0.001 usgph
Max. operating pressure	7 bar	7 bar	7 bar	4 bar	7 bar
Max. operating pressure	100 psi	100 psi	100 psi	60 psi	100 psi
Max. operating speed	55 rpm	125 rpm	125 rpm	140 rpm	125 rpm
Min. ambient temperature	5 °C	5 °C	5 °C	5 °C	5 °C
Max. ambient temperature	40 °C	45 °C	45 °C	45 °C	40 °C
Min. ambient temperature	41 °F	41 °F	41 °F	41 °F	41 °F
Max. ambient temperature	104 °F	113 °F	113 °F	113 °F	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 relay, Universal+, Universal+ relay	Manual, Profibus, Remote, Universal, Universal relay, Universal+, Universal+ relay	Manual, Profibus, Remote, Universal, Universal relay, Universal+, Universal+ relay	Manual, Profibus, Remote, Universal, Universal relay, Universal+, Universal+ relay	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
Ingress rating	IP66, NEMA 4X	IP66, NEMA 4X	IP66, NEMA 4X	IP66, NEMA 4X	IP66
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
Noise	< 70dB(A) at 1m	< 70dB(A) at 1m	< 70dB(A) at 1m	< 70dB(A) at 1m	< 70dB(A) at 1m
Max. altitude	2000	2000	2000	2000	2000
Power supply	100-240 VAC 50-60 Hz 190 VA, 12-24 V DC	100-240 VAC 50-60 Hz 190 VA, 12-24 V DC	100-240 VAC 50-60 Hz 190 VA, 12-24 V DC	100-240 VAC 50-60 Hz 190 VA, 12-24 V DC	100-240 VAC 50-60 Hz 190 VA, 12-24 V DC

Min. flow depends upon model, flow unit and method of control

Some pumphead tube variants will limit the maximum pressure to 4 bar

Qdos 20 dimensions

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 modules (H or R)

Qdos 30 dimensions

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 modules (H or R)

Qdos 60 dimensions

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 modules (H or R)

Qdos 120 dimensions

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 modules (H or R)

Qdos CWT dimensions

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 modules (H or R)

Materials of construction

Bearings	Stainless steel, Steel
Drive shaft	Stainless steel 440C
Drive casework	20% glass filled PPE/PS
Drive casework coating	20% glass filled PPE/PS
Hydraulic connectors	Polypropylene, PVDF
Keypad/HMI	Polyester
Lubricant	PFPE based
Pumphead body assembly	30% glass filled PPO/PS, 40% glass filled PPS
Pumphead rotor assembly	Stainless steel
Pumphead rotor assembly	Glass filled Nylon, PP (polypropylene)
Tubingl	PU, Santoprene, SEBS
	EPDM, PEEK
	Polypropylene
	Santoprene
	EPDM, NBR
Rotor	Stainless steel 303
	30% glass filled PA

Information listed covers the complete range. For detailed specifications of individual models/components refer to user manual or contact WMFTG representative.

Control

Control options

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		✔		✔	✔

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

Pumpheads

Reduced maintenance with single, no-tools, component replacement

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
ReNu 20	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
ReNu 30	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
ReNu 60	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
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	7 bar	0M3.5700.PFP

Chemical compatibility

ReNu and CWT pumphead wetted components for Qdos

This guide details chemical compatibility between the process fluid and the wetted components within the pumphead only. The guide is not an indication of the suitability of the pump for your process. It does not indicate chemical compatibility of the components within the pumphead after failure. A full risk assesment should be carried out for all applications when pumping aggressive chemicals. Materials of manufacture can be found in the product datasheet. Please contact Watson-Marlow for further advice.

The ReNu and CWT pumphead contains lubricant. It is the user’s responsibility to comply with local health and safety regulations, including ensuring chemical compatibility between the lubricant and the duty fluid before use.

The Qdos pump should not be used in an ATEX environment, Hazardous environment or an environment that requires explosion proof certification.

* In some cases, compatibility between the pumphead and the chemical is particularly dependant on a number of factors including chemical source and temperature. In these cases, trials are recommended to ascertain suitability.

7 bar (100 psi) Max
0M3.2200.PFP: ReNu 30 Santoprene pumphead
0M3.3200.PFP: ReNu 60 Santoprene pumphead
4 bar (60 psi) Max
0M3.4200.PFP: ReNu 120 Santoprene pumphead

7 bar (100 psi) Max
0M3.1800.PFP: ReNu 20 SEBS pumphead
4 bar (60 psi)
0M3.3800.PFP: ReNu 60 SEBS pumphead
4 bar (60 psi) Max
0M3.2800.PFP: ReNu 30 SEBS pumphead

4 bar (60 psi) Max
0M3.1500.PFP: ReNu 20 PU pumphead

Available data indicates that the process chemical is compatible with the pumphead wetted components.

The process chemical is not fully compatible with the pumphead wetted components. Flow rate and pumphead life may be adverseley affected.

Not suitable for use with duty fluid. The process chemical is not compatible with some or all of the components. It may be unsafe to use the pumphead in this application.

Compatibility not confirmed. Compatability data with the chemical does not exist or has not been confirmed. Please contact Watson-Marlow for further details.

Chemical compatibility guide

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