Pumps - cased pumps

Qdos chemical metering and dosing pump

Arrange a demo

Overview

Qdos chemical metering and dosing pump

Qdos® peristaltic chemical metering and dosing pumps, which deliver flow rates that remain constant up to 9 bar, give users a unique advantage over diaphragm metering pumps.

With extended maintenance intervals, Qdos pumps reduce process downtime and lower 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.

Chemical Compatibility Guide

Features and benefits

Flow rates from 0.1 to 2000 ml/min at up to 9 bar
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
Cut chemical cost through higher accuracy metering
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	9 bar
Max. operating pressure	130 psi
Ambient temperature	5 °C to 45 °C (41 °F to 113 °F)
Control types	Manual, Profibus®, Remote, Universal, Universal relay, Universal+, Universal+ relay
Standards	CE, cETLus, CSA, C-Tick, NSF 61
Drive ingress protection	IP66, NEMA 4X
Drive power supply	AC (100—240 V AC 50/60 Hz, 180 W)., DC [(12V, 130 W), (24 V, 180 W)].

Technical Summary table lists features available within the range. See ‘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	0.1-450 (0.001–7.13)	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)
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 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)	0.078-140	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)*
Qdos CWT EPDM	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
Flow rate	0.1 ml/min to 450 ml/min	0.1 ml/min to 500 ml/min	0.1 ml/min to 1000 ml/min	0.1 ml/min to 2000 ml/min	0.1 ml/min to 500 ml/min
Flow rate	0.001 USGPH to 7.13 USGPH	0.001 USGPH to 7.93 USGPH	0.001 USGPH to 15.85 USGPH	0.001 USGPH to 31.7 USGPH	0.001 USGPH to 7.93 USGPH
Max. operating pressure	7 bar (100 psi)	7 bar (100 psi)	7 bar (100 psi)	4 bar (60 psi)	9 bar (130 psi)
Ambient temperature	5 °C to 40 °C (41 °F to 104 °F)	5 °C to 45 °C (41 °F to 113 °F)	5 °C to 45 °C (41 °F to 113 °F)	5 °C to 45 °C (41 °F to 113 °F)	5 °C to 45 °C (41 °F to 113 °F)
Weight	5.7 kg (12.6 lbs)	5.05 kg (11.1 lbs)	5.7 kg (12.6 lbs)	5.7 kg (12.6 lbs)	6.8 kg (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, NSF 61	CE, cETLus, CSA, C-Tick, NSF 61	CE, cETLus, CSA, C-Tick, NSF 61	CE, cETLus, CSA, C-Tick, NSF 61	CE, cETLus, CSA, C-Tick, 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 (6562 ft)	2000 m (6562 ft)	2000 m (6562 ft)	2000 m (6562 ft)	2000 m (6562 ft)
Drive power supply	AC (100—240 V AC 50/60 Hz, 180 W)., DC [(12V, 130 W), (24 V, 180 W)].	AC (100—240 V AC 50/60 Hz, 180 W)., DC [(12V, 130 W), (24 V, 180 W)].	AC (100—240 V AC 50/60 Hz, 180 W)., DC [(12V, 130 W), (24 V, 180 W)].	AC (100—240 V AC 50/60 Hz, 180 W)., DC [(12V, 130 W), (24 V, 180 W)].	AC (100—240 V AC 50/60 Hz, 180 W)., DC [(12V, 130 W), (24 V, 180 W)].

Minimum and maximum flow depends upon pumphead, flow unit and method of control. Pressure and speed depends on pumphead chosen.

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 module

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 module

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 module

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 module

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 module

Materials of construction

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, 40 % glass filled PPS
Pumphead rotor assembly	Glass filled Nylon, PP (polypropylene), Stainless steel
Tubing	PU, Santoprene, SEBS
Track	PEEK
Fluid contact element	EPDM
Fluid connection port	Polypropylene, PVDF
Fluid connection seals	FKM, Santoprene
Pumphead enclosure	40 % glass filled PPS
Pumphead enclosure seal	EPDM, NBR
Rotor	Stainless steel 303
Clamp ring	30% glass filled PP

Material depends on pumphead chosen.

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) 5000:1 (Qdos CWT)		3333:1 (Qdos 20) 5000:1 (Qdos 30) 10000:1 (Qdos 60) 20000:1 (Qdos 120) 5000:1 (Qdos CWT)	3333:1 (Qdos 20) 5000:1 (Qdos 30) 10000:1 (Qdos 60) 20000:1 (Qdos 120) 5000:1 (Qdos CWT)	3333:1 (Qdos 20) 5000:1 (Qdos 30) 10000:1 (Qdos 60) 20000:1 (Qdos 120) 5000:1 (Qdos CWT)
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) 1250:1 (Qdos CWT)
Run stop input		✔		✔	✔
Run status open collector output		✔		L
Alarm open collector output		✔		L
Two configurable open collector outputs					L
Two configurable relay outputs		✔		R
Four configurable relay outputs					R
Remote fluid recovery		✔		L	L

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	Volt free relay contacts. Maximum: 240 V AC, 4A or 24 V DC, 4A

Documentation

Brochures

Industrial overview (EN).pdf
PDF - 721.4kb
Qdos CWT brochure (EN).pdf
PDF - 993.8kb
Qdos hose connectors flyer (EN).pdf
PDF - 172.9kb
Qdos range brochure (EN).pdf
PDF - 1.3mb
Tunnel boring (EN).pdf
PDF - 1.8mb

Datasheets

Qdos 120 datasheet (EN).pdf
PDF - 1.5mb
Qdos 20 datasheet (EN).pdf
PDF - 1.5mb
Qdos 30 datasheet (EN).pdf
PDF - 1.5mb
Qdos 60 datasheet (EN).pdf
PDF - 1.4mb
Qdos CWT datasheet (EN).pdf
PDF - 1.4mb

Manuals

Qdos manual (EN).pdf
PDF - 14.7mb

Other Resources

Qdos30_RH.stp
STP - 30.6mb
Qdos 30 LH.stp
STP - 30.8mb

WM Qdos_V1.42.02.zip
ZIP - 906.6kb

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
	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
CWT 30	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

Videos

Order Information

Product codes

Pump product codes

A	B	C	D	E	F
Model	Pumphead	Drive Variant	Digital I/O type	Pumphead orientation	Power plug
1: Qdos 20 2: Qdos 30 3: Qdos 60 4: Qdos 120 5: Qdos CWT®	2: Santoprene 5: PU 7: EPDM 8: SEBS	1: Remote 3: Manual 4: Universal 5: Universal+ 7: PROFIBUS	L: Standard pump variant (Manual, Remote and PROFIBUS models) L: Open collector outputs, 5 – 24 V DC inputs (Universal, Universal+ models) R: Relay module, Volt free relay contacts, Maximum:240 V AC, 4A or 24 V DC, 4A (Universal, Universal+ models)	L: Left R: Right	A: US E: European U: UK K: Australia R: Argentina C: Swiss D: India, South Africa B: Brazil V: 12-24 V DC Z: China

Model

Pumphead

Drive Variant

Digital I/O type

Pumphead orientation

Power plug

1: Qdos 20

2: Qdos 30

3: Qdos 60

4: Qdos 120

5: Qdos CWT®

2: Santoprene

5: PU

7: EPDM

8: SEBS

1: Remote

3: Manual

4: Universal

5: Universal+

7: PROFIBUS

L: Standard pump variant (Manual, Remote and PROFIBUS models)

L: Open collector outputs, 5 – 24 V DC inputs (Universal, Universal+ models)

R: Relay module, Volt free relay contacts, Maximum:240 V AC, 4A or 24 V DC, 4A (Universal, Universal+ models)

L: Left

R: Right

A: US

E: European

U: UK

K: Australia

R: Argentina

C: Swiss

D: India, South Africa

B: Brazil

V: 12-24 V DC

Z: China

Pumphead product codes

Description	Partcode
ReNu 20 pumphead PU / PFPE 4 bar (60psi)	0M3.1500.PFP
ReNu 20 pumphead SEBS / PFPE 7 bar (100psi)	0M3.1800.PFP
ReNu 30 pumphead Santoprene / PFPE 7 bar (100psi)	0M3.2200.PFP
ReNu 30 pumphead SEBS / PFPE 4 bar (60psi)	0M3.2800.PFP
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
ReNu 120 pumphead Santoprene / PFPE 4 bar (60psi)	0M3.4200.PFP
CWT 30 pumphead EPDM/PEEK/PFPE 9 bar (130 psi)	0M3.5700.PFP

Qdos® Conveying Wave Technology™

Qdos CWT™ is the next level in high performance for our industry leading range of chemical...
Case Study

Reducing energy usage and greenhouse gas emissions

View full case study reducing energy usage and greenhouse gas emissions

Case Study
News

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

Recommended Products

Qdos Hose Connector Kit

The Qdos Hose Connector Kit is a flexible and robust hose, designed for simple, safe and secure connection of a Qdos chemical metering pump into an existing process line.

Flexible hose assemblies
Qdos Pressure Sensing Kit

The Qdos Pressure Sensing Kit is an accessory that provides real time pressure condition monitoring on Qdos pumps, which ensures process security and improves safety. The optional pressure sensing kit comes with configurable alarms for process monitoring.

Fluid path - equipment