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 microliters per minute to 108 cubic meters per hour, with consistent accuracy of up to ± 0.5% ensures economical use of expensive chemicals and optimized system performance.

Key products
-
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
-
530 process pumps
Flow rates to 55 GPH and pressures up to 100 psi. Precise 2200:1 speed control range.
Pumps - cased pumps
-
630 process pumps
Flow rates to 4.76 GPM and pressures up to 60 psi. Precise 2650:1 speed control range.
Pumps - cased pumps
-
730 process pumps
Flow rates to 8.8 GPM and pressures up to 30 psi. Precise 3600:1 speed control range.
Pumps - cased pumps
-
Corroline+ hose
Smooth bore hose for chemical and other fluid flow applications where rough usage may occur.
Flexible hose assemblies
Products by brand
-
Bredel hose pumps for the industrial sector
Bredel hose pumps for industrial applications
-
Watson-Marlow Pumps for industrial sector
Pumps for use in Industrial applications
-
Aflex PTFE flexible hoses for industrial sector
PFTE hoses for industrial processes
Case studies
-
Case Study
Chemical plant enjoys large gains in hose life following switch to Bredel pumps
PCC (precipitated calcium carbonate) recycling operation reduced downtime to just 2 hours.
Case Study
-
Case Study
Benefits of hose pumps for adhesive metering
Adhesive specialist switches from progressive cavity to hose pumps in its production processes.
Case Study
-
Case Study
Packaging specialist swaps membrane pumps for Qdos chemical metering pumps
View case study on Qdos chemical metering pumps.
Case Study
-
Case Study
Bioflex Ultra solves hose collapsing issues for chemical company
A company specializing in the process of high value chemicals and manufacturing in small to...
Case Study