Positive displacement pumps for the chemical industry
The chemical industry places high demands on pumping equipment. Any interruption in production or accidental spillage of fluid can be costly and cause serious health and safety risks. Watson-Marlow peristaltic pumps ensure safety, reliability and performance through:
- Total fluid containment
- Dry-running and self-priming capability
- Cut chemical cost through higher accuracy metering
- Simple drop-in installation eliminates ancillary equipment
- Long maintenance intervals, reducing the impact of process downtime
- Lowering the overall cost of ownership
Our positive displacement pumps are designed to handle difficult, abrasive, corrosive and gaseous fluids. The only part to come into contact with the product is the tube or hose. This means there are no seals or valves that can wear or fail. Replacing the tube or hose can be performed quickly and safely.
Precise metering of flow rates from microlitres per minute to 108 cubic metres per hour, with consistent accuracy of up to ± 0.5% ensures economical use of expensive chemicals and optimised system performance.

Key products
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Qdos chemical metering pumps
Flow rates to 2,000 ml/min (31.7 USGPH) and pressures up to 7 bar (100 psi).
Pumps - cased pumps
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530 process pumps
Flow rates to 3.5 L/min (55 USGPH) and pressures up to 7 bar (100 psi). Precise 2,200:1 speed control range.
Pumps - cased pumps
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630 process pumps
Flow rates to 18 L/min (4.76 USGPM) and pressures up to 4 bar (60 psi). Precise 2,650:1 speed control range.
Pumps - cased pumps
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730 process pumps
Flow rates to 33 L/min (8.8 USGPM) and pressures up to 2 bar (30 psi). Precise 3,600:1 speed control range.
Pumps - cased pumps
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Corroline+ hose
Smooth bore hose for chemical and other fluid flow applications where rough usage may occur.
Flexible hose assemblies
Products by brand
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Bredel hose pumps for the industrial sector
Bredel hose pumps for industrial applications
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Watson-Marlow Industrial Pumps
Pumps for use in industrial processes
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Aflex PTFE flexible hoses for industrial sector
PFTE hoses for industrial processes
Case studies
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Case Study
Could Corroflon hoses eradicate corrosion in chemical transfer?
View full Corroflon hose case study.
Case Study
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Case Study
Bioflex Ultra solves hose collapsing issues for chemical company
View full Bioflex Ultra case study.
Case Study
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Case Study
Packaging specialist swaps membrane pumps for Qdos chemical metering pumps
View case study on Qdos chemical metering pumps.
Case Study
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Case Study
Benefits of hose pumps for adhesive metering
Adhesive specialist switches from progressive cavity to hose pumps in its production processes.
Case Study