Pumps - cased pumps

Qdos metering pump

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 rate2000 ml/min
Min. flow rate 0.1 ml/min
Max. flow rate31.7 USGPH
Min. flow rate0.001 USGPH
Max. operating pressure7 bar
Max. operating pressure100 psi
Min. ambient temperature5 °C
Max. ambient temperature45 °C
Min. ambient temperature41 °F
Max. ambient temperature113 °F
Control typesManual, Profibus, Remote, Universal, Universal relay, Universal+, Universal+ relay 
StandardsCE, cETLus, CSA, C-Tick, IRAM S Mark, NSF 61 
Ingress ratingIP66, NEMA 4X 
Power supply100-240 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 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
qdos 30 0.025-125 0.1-500 (0.001-7.93) 0.078-125 0.3-500 (0.005-7.93)
qdos 60 0.013-125 0.1-1000 (0.001-15.85) 0.078-125 0.6-1000 (0.01-15.85)
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

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

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

Qdos 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”)
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”)
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”)
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

BearingsStainless steel, Steel
Drive shaftStainless steel 440C
Drive casework20% glass filled PPE/PS
Drive casework coating20% glass filled PPE/PS
Hydraulic connectorsPolypropylene, PVDF
Keypad/HMIPolyester
LubricantPFPE based
Pumphead body assembly30% glass filled PPO/PS, 40% glass filled PPS
Pumphead rotor assemblyStainless steel
Pumphead rotor assemblyGlass filled Nylon, PP (polypropylene)
TubinglPU, Santoprene, SEBS
EPDM, PEEK
Polypropylene
Santoprene
EPDM, NBR
RotorStainless 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.

PumpheadTube materialMax operating pressurePart 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
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.

ReNu Santoprene label


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

ReNu SEBS label


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

ReNu PU label


4 bar (60 psi) Max

0M3.1500.PFP: ReNu 20 PU pumphead

A

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

B

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

C

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

Videos

Order Information

Product codes

Qdos CWT

Description Partcode
CWT 30 pumphead EPDM/PEEK/PFPE 9 bar (130 psi) 0M3.5700.PFP

 

Qdos ReNu

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 120 pumphead Santoprene / PFPE 4 bar (60psi) 0M3.4200.PFP

 

Accessories

Description Partcode
Hydraulic connection pack, polypropylene compression fittings—Set of four sizes : 6.3x11.5mm, 10x16mm, 9x12mm, 5x8mm for use with WM Interface tubing. 0M9.221H.P01
Hydraulic connection pack, polypropylene barb/threaded fittings, 1/4” hose barb, 3/8” hose barb, 1/4” BSP, 1/4” NPT 0M9.221H.P02
Hydraulic connection pack, PVDF barb/threaded fittings, 1/4” hose barb, 3/8” hose barb, 1/4” BSP, 1/4” NPT 0M9.221H.F02
Hydraulic connection pack, polypropylene, threaded fittings, 1/2” BSP (Not available for ReNu 30 pumpheads) 0M9.401H.P03
Hydraulic connection pack, polypropylene, threaded fittings, 1/2” NPT (Not available for ReNu 30 pumpheads) 0M9.401H.P04
Hydraulic connection pack, polypropylene, 1/2” hose barb 0M9.401H.P05
Hydraulic connection pack, PVDF, threaded fittings, 1/2” BSP (Not available for ReNu 30 pumpheads) 0M9.401H.F03
Hydraulic connection pack, PVDF, threaded fittings, 1/2” NPT (Not available for ReNu 30 pumpheads) 0M9.401H.F04
Hydraulic connection pack, PVDF, 1/2” hose barb 0M9.401H.F05
Interface tubing, pvc 6.3x11.5mm, 2m (6.5ft) length 0M9.2222.V6B
Interface tubing, pvc 10x16mm, 2m (6.5ft) length 0M9.2222.VAD
Interface tubing, pvc 6.3x11.5mm, 5m (16ft) length 0M9.2225.V6B
Interface tubing, pvc 10x16mm, 5m (16ft) length 0M9.2225.VAD
Interface tubing, polyethylene 9x12mm, 2m (6.5ft) length 0M9.2222.E9C
Interface tubing, polyethylene 5x8mm, 2m (6.5ft) length 0M9.2222.E58
Interface tubing, polyethylene 9x12mm, 5m (16ft) length 0M9.2225.E9C
Interface tubing, polyethylene 5x8mm, 5m (16ft) length 0M9.2225.E58
Replacement baseplate 0M9.223M.X00
Input lead, M12 IP66, 3m (10ft) length 0M9.203X.000
Output lead, M12 IP66, 3m (10ft) length 0M9.203Y.000
HMI protective cover 0M9.203U.000
Pumphead Connection Collar - Qty 2 0M9.001H.P00
ReNu 30, pack of 2 Viton "O" Rings 0M9.221R.K00
ReNu 20, ReNu 60, ReNu 120, CWT 30 Santoprene Insert 0M9.001R.M00
Qdos 30 pumphead clamp and screw (Pair) 0M9.203C.000

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