Lever Pumps

About Lever Pumps

Lever pumps are essential fluid transfer tools designed to safely and efficiently move liquids from one container to another without the need for electric power or complex machinery. These manual pumps utilise a simple lever action mechanism to create suction and discharge, making them ideal for transferring oils, fuels, chemicals, and other fluids in workshops, garages, and industrial environments. Whether you're draining engine oil, dispensing AdBlue, or transferring gear oil from drums to smaller containers, lever pumps provide a reliable, cost-effective solution for fluid handling tasks.

Our range of lever pumps includes products from trusted brands like Sealey and Draper, offering options from light-duty plastic chemical pumps to heavy-duty self-priming displacement pumps. These versatile tools are available in various configurations, including telescopic suction tubes for deep drums, swivel handle designs for improved ergonomics, and specialised pumps for specific fluids like gear oil and AdBlue. Many models feature self-priming capabilities, double diaphragm mechanisms, and piston pump technology to ensure consistent flow rates and reliable performance even with viscous fluids.

Lever pumps eliminate the need for tipping or pouring heavy containers, reducing the risk of spills, workplace accidents, and environmental contamination. They're particularly valuable for tradespeople working with expensive or hazardous fluids where precision and control are paramount. From mobile gear oil dispensers to barrel pumps with telescopic tubes, these tools are designed to make fluid transfer safer, cleaner, and more efficient across a wide range of professional applications.

Jargon Buster

Self-Priming

A pump that can automatically create the suction needed to draw fluid up from a container without requiring manual filling of the pump chamber first. This feature saves time and makes operation more convenient, especially when working with multiple containers.

Displacement Pump

A pump type that moves fluid by trapping a fixed amount in a chamber and then forcing it out through discharge. These pumps are ideal for viscous fluids like gear oil and provide consistent flow rates with each stroke of the lever.

Double Diaphragm

A pumping mechanism using two flexible diaphragms that alternate to create continuous suction and discharge cycles. This design provides smooth, pulsation-free flow and is particularly effective for fuel transfer applications.

Viscosity

The measure of a fluid's thickness or resistance to flow. Higher viscosity fluids like gear oil require more robust lever pumps with stronger mechanisms, whilst lower viscosity fluids like diesel transfer more easily.

Telescopic Suction Tube

An adjustable intake tube that extends to reach the bottom of deep drums or barrels. This feature allows you to access fluid at various levels without requiring different length tubes for different containers.

Flow Rate

The volume of fluid transferred per stroke or per minute, typically measured in litres. Understanding flow rate helps you select a pump appropriate for your volume requirements and working pace.

Who Uses Lever Pumps?

• Motor mechanics and automotive technicians transferring engine oil, transmission fluid, and gear oil during servicing
• HGV and fleet maintenance engineers dispensing AdBlue and handling large volumes of diesel and lubricants
• Agricultural workers and farm mechanics managing fuel and hydraulic fluids for machinery maintenance
• Industrial maintenance fitters working with cutting oils, coolants, and lubricants in manufacturing environments
• Plant operators transferring chemicals and processing fluids safely between containers
• Marine engineers handling fuel and oil transfers on boats and vessels
• Facilities managers maintaining heating systems and managing bulk fluid storage
• DIY enthusiasts and home mechanics performing oil changes and general vehicle maintenance
• Groundskeepers and landscaping professionals managing fuel for equipment and machinery

How to Choose the Right Lever Pumps

Fluid Compatibility: Ensure the pump materials are compatible with your intended fluid. Plastic pumps suit certain chemicals and water-based fluids, whilst metal components are necessary for petroleum-based products. Specialised pumps for AdBlue, gear oil, or diesel are designed with appropriate seals and materials to prevent degradation and contamination.

Pump Capacity and Flow Rate: Consider the volume of fluid you typically transfer. Heavy-duty displacement pumps deliver higher flow rates for bulk transfers, whilst lighter-duty pumps suffice for occasional top-ups and small quantities. Check the litres per stroke specification to match your efficiency requirements.

Container Compatibility: Measure the depth and opening size of your drums or containers. Telescopic suction tubes offer versatility for various container sizes, whilst fixed-length tubes work well for standardised barrels. Some pumps mount directly onto specific drum sizes, providing stable, hands-free operation.

Build Quality and Duty Rating: Professional workshop environments demand heavy-duty construction with robust components that withstand daily use. Self-priming piston pumps and double diaphragm designs offer superior reliability for high-frequency applications. Consider swivel handle designs for improved ergonomics during extended use.

Portability Requirements: Mobile gear oil dispensers and pump units with wheels provide convenience for site work or moving between multiple service bays. Lightweight plastic pumps offer portability for occasional use, whilst heavier units with mounting brackets suit permanent workshop installations.

Accessories and Expandability: Look for pumps compatible with accessory kits including different nozzles, hoses, and mounting options. This expandability allows you to adapt the pump to various tasks and justifies investment in a quality base unit.

Popular Accessories

• Drum accessory kits including hoses, nozzles, and mounting brackets for expanded functionality
• Extension hoses and tubes for reaching awkward locations and increasing working distance
• Dispensing nozzles with automatic shut-off features for precise filling without spillage
• Drum bungs and caps for secure storage and preventing contamination between uses
• Filter elements to remove particulates and contaminants during fluid transfer
• Fluid containers and measuring jugs for collecting and measuring transferred liquids
• Drip trays and spill containment to maintain clean working environments and comply with COSHH regulations
• Fluid identification labels to prevent cross-contamination between different products
• Protective storage cases for keeping pumps clean and organised when not in use

Safety Information

When using lever pumps, always verify the fluid compatibility of the pump materials before use to prevent chemical reactions or material degradation. Follow COSHH regulations when handling hazardous substances, ensuring adequate ventilation and appropriate personal protective equipment including chemical-resistant gloves and safety goggles. Never use pumps designed for non-flammable fluids to transfer petrol or other highly flammable liquids unless specifically rated for such use.

Ensure suction tubes reach the bottom of containers to prevent air locks and maintain steady flow. Keep work areas well-ventilated when transferring fuels or volatile chemicals, and position drip trays beneath transfer points to contain spills. Store flammable fluids in appropriate containers away from ignition sources, and dispose of contaminated materials according to HSE guidelines and local environmental regulations.

Regularly inspect pump seals, hoses, and connections for wear or damage that could cause leaks. Clean pumps thoroughly between uses, especially when switching between different fluid types, to prevent contamination. Never exceed the manufacturer's recommended pressure or flow specifications, and ensure all connections are secure before commencing pumping operations.

Frequently Asked Questions

Can I use the same lever pump for different types of fluids?

Whilst some general-purpose pumps can handle multiple fluid types, it's best practice to dedicate specific pumps to particular fluids to prevent cross-contamination. Gear oil pumps should be kept separate from diesel pumps, and chemical pumps separate from food-grade fluid pumps. If you must use one pump for multiple fluids, thoroughly clean and flush the system between uses. Always check the manufacturer's compatibility guidelines.

What's the difference between a piston pump and a diaphragm pump?

Piston pumps use a reciprocating piston to create suction and discharge, offering higher pressures and better performance with viscous fluids like gear oil. Diaphragm pumps use flexible membranes to move fluid, providing gentler action suitable for fuels and chemicals whilst reducing the risk of contamination from moving metal parts. Double diaphragm designs offer smooth, continuous flow ideal for fuel transfer applications.

How do I maintain my lever pump for longevity?

After each use, pump through clean solvent or appropriate cleaning fluid to remove residue. Store pumps in a clean, dry location with suction tubes elevated to allow complete drainage. Periodically inspect and replace seals, O-rings, and diaphragms as these wear components affect pump efficiency. Lubricate moving parts according to manufacturer recommendations, and never force a stiff or seized lever as this indicates a need for servicing.

Are lever pumps suitable for transferring AdBlue?

Yes, but you must use a pump specifically designed for AdBlue, as this diesel exhaust fluid requires particular materials that won't contaminate or degrade the solution. Sealey produces specialised self-priming heavy-duty lever pumps for AdBlue that feature appropriate seals and components. Never use standard diesel or oil pumps for AdBlue as contamination will compromise its effectiveness in vehicle emission systems.

What flow rate should I expect from a manual lever pump?

Flow rates vary considerably based on pump type and fluid viscosity. Light-duty pumps typically deliver 200-400ml per stroke, whilst heavy-duty displacement pumps can achieve 500ml or more per stroke. For thin fluids like diesel, you might transfer 5-10 litres per minute with consistent pumping. Thicker gear oils will flow more slowly. Check product specifications for exact flow rates to ensure the pump meets your productivity requirements.