Fuels & Chemicals

Pumping Solutions for the Fuels & Chemicals Industry

D.L. Thurrott offers high and low pressure pumps for chemical transfer, chemical feed and dosing made from various materials matched to the requirements of the chemicals to be pumped. Single and multi-stage, metal, plastic, sealed or sealless - all are available from D.L Thurrott and will be expertly selected to suit the application.

General Transfer

D L Thurrott offers pumps for chemical transfer duties from a number of first class vendors for general or specific applications:

Centrifugal Pumps for low to high flow rates, with flooded suction conditions:
Positive Displacement Pumps for self-priming applications

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Chemical Feed / Dosing

D L Thurrott, Inc. also offers several pump lines for chemical feed and dosing applications, which basically require introducing relatively small amounts of dry or liquid chemical into a larger volume of liquid at a set ratio.

Originally, chemical additives were used to facilitate health and safety in water and sewage treatment. This was followed by the need for corrosion control in steam power plants, and then generally for treating nearly every conceivable type of process flow in industry. Present-day industrial applications include the following:

Potable water chlorination and treatment.

This consists of chlorine gas or liquid hypochlorite injection for mandatory disinfection. It also includes use of various chemicals for softening, coagulation, fluoridation, pre-filter flocculation and corrosion control to meet EPA and associated standards.

Wastewater treatment.

Similar to potable water with more emphasis on flocculation and settling additives, the treatment of wastewater involves a variety of polymers and similar chemicals.

Boiler feed water treatment.

The goal here is to avoid boiler and turbine damage by adding phosphates for scale control and sulfites for oxygen elimination.

Cooling tower treatment.

This consists of adding acid and/or caustic to makeup water to adjust pH for scale and algae control.

Fuel/petroleum additives.

Gasolines and lube oils require various additives such as dyes, TEL, gum inhibitors and pour depressants. The production process involves wide ranging viscosities.

Corrosion inhibition.

The field of corrosion control covers virtually any system involving piping or vessels carrying water, steam or waste. Elevated temperatures and pressures affect the type and amount of chemical used.

General industry process additions.

Almost every industry requires specific chemical additives. Food products, plating plants, photo labs, chemical companies, paper making and auto manufacturers all require chemical injection systems of some type for either specific products or associated streams of water, waste or steam involved in the manufacturing process.

For additional information:

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