MRO Stop stocks industrial pumps across five product families —
drum and transfer pumps for fluid dispensing from bulk containers,
air-driven hydraulic pumps for high-pressure hydraulic tool and cylinder supply,
diaphragm pumps for chemical and process fluid transfer,
peristaltic pumps for metered and contamination-sensitive fluid handling, and
ink pumps for printing and coating applications. All categories include the full range of matching parts, repair kits, and accessories.
Use the sections below to browse by pump type, or
call our team for help selecting the right pump for your fluid, pressure, and flow requirements.
Drum Pumps & Accessories
The largest category in our pumps range — covering every type of drum-mounted and portable pump for dispensing oils, greases, and process fluids from 5-gallon pails, 55-gallon drums, and IBC totes. Available in air-powered, electric, hydraulic, and manual drive configurations. Includes the full range of drum handling accessories: follower plates, bung adapters, down tubes, dispense hoses, drum carts, elevators, and covers.
All Pump Types
Drum Accessories & Handling
Parts & Repair
Air Driven Hydraulic Pumps & Accessories
Air-driven hydraulic pumps convert compressed air supply into high-pressure hydraulic output — used for powering hydraulic cylinders, presses, crimpers, torque tools, and test rigs in locations where an electric hydraulic power unit is impractical. Available as standalone pumps or as complete air-operated hydraulic power units with reservoir and control valve.
Repair
Diaphragm Pumps & Accessories
Air-operated double-diaphragm (AODD) pumps are the standard choice for chemical transfer, paint and coating dispensing, wastewater handling, and any application where a seal-less, self-priming pump is required. The diaphragm design means no rotating shaft seal — making these pumps safe for aggressive chemicals, abrasive slurries, and shear-sensitive fluids. Available in plastic, aluminium, stainless steel, and cast iron body materials.
Core product
Diaphragm Pumps
Air-operated double-diaphragm pumps in plastic, aluminium, stainless, and cast iron. Self-priming, seal-less, and dry-run safe. For chemical, paint, and process fluid transfer.
Ready to use
Diaphragm Pump Packages
Complete AODD pump packages with hose, fittings, and mounting hardware. Pre-configured for specific applications.
Cycle control
Pump Controllers
Electronic and pneumatic controllers for diaphragm pump cycle management, stall detection, and remote start/stop operation.
Install & connect
Diaphragm Pump Accessories
Mufflers, surge suppressors, pulse dampeners, ground wires, and mounting hardware for AODD pump installations.
Fluid connection
Chemical Hose Kits
Chemical-resistant hose kits for diaphragm pump inlet and outlet connections. PTFE-lined and rubber options for aggressive fluid service.
Safety & monitoring
Leak Detectors
Diaphragm rupture and leak detection sensors that alert operators to diaphragm failure before fluid enters the air side of the pump.
Kits, Parts & Repair
Peristaltic Pumps & Accessories
Peristaltic (hose or tube) pumps move fluid by compressing a flexible hose or tube with rollers — the fluid never contacts the pump mechanism, making them ideal for metering, dosing, and handling viscous, abrasive, or contamination-sensitive fluids. Widely used in chemical dosing, water treatment, food processing, and laboratory applications. Flow rate is precisely controlled by motor speed.
Parts
Ink Pumps & Accessories
Ink pumps are purpose-designed for the printing, coating, and packaging industries — handling inks, varnishes, adhesives, and coatings that would be abrasive or chemically aggressive to standard pump internals. Available in configurations for flexographic, gravure, and offset printing applications. Wetted materials selected for compatibility with solvent-based, water-based, and UV-curable fluids.
Choosing the Right Pump
Pump Selection Guide
The correct pump type depends on your fluid, required pressure, flow rate, power source, and application. Use this table as a starting point, then contact our team for a specific recommendation.
| Pump Type
| Best For
| Key Characteristics
| Typical Applications
|
|---|
| Drum / Transfer Pump
| Moving lubricants and fluids from bulk containers
| Air or electric drive; ratio selected by viscosity; drum-mounted or portable
| Oil and grease dispensing from drums and pails; fluid room transfer
|
| Air-Driven Hydraulic Pump
| Powering hydraulic tools and cylinders from shop air
| Converts compressed air to high-pressure hydraulic output; no electric supply needed; portable
| Hydraulic crimpers, presses, torque wrenches, cylinder actuation, maintenance tooling
|
| Diaphragm Pump (AODD)
| Chemical, paint, and process fluid transfer
| Seal-less; self-priming; dry-run safe; handles aggressive, abrasive, and shear-sensitive fluids
| Chemical transfer, paint dispensing, wastewater, adhesives, coatings, slurries
|
| Peristaltic Pump
| Precise metering and dosing; contamination-sensitive fluids
| Fluid contacts only hose interior; gentle on shear-sensitive products; easy to clean and sterilize
| Chemical dosing, water treatment, food processing, pharmaceutical, laboratory
|
| Ink Pump
| Printing, coating, and packaging line fluid supply
| Wetted materials optimized for ink and varnish compatibility; designed for printing machine integration
| Flexographic, gravure, and offset printing; UV coating; packaging adhesives
|
Selecting the right drum pump ratio: For light oils (ISO VG 32–68), a 3:1 or 5:1 pump is typically sufficient. For heavier lubricants (ISO VG 220–680), use a 10:1 to 15:1 pump. For NLGI 2 grease, a 30:1 to 50:1 ratio pump is required to move product consistently through distribution lines. Contact our team if you are unsure which ratio applies to your fluid.
Authorized Distribution
Featured Pump Brands
MRO Stop stocks pump products from these manufacturers — all genuine, all backed by full manufacturer warranties.
Where These Pumps Are Used
Industry & Application Guide
⚙Manufacturing & MRO
Drum and transfer pumps for lubricant dispensing in fluid rooms and maintenance shops. Air-driven hydraulic pumps for press and tooling operation on the plant floor.
🌏Chemical Processing
Diaphragm pumps for transferring acids, solvents, caustics, and other aggressive chemicals. Seal-less design and chemical-resistant wetted materials are essential.
🏠Printing & Packaging
Ink pumps for flexographic and gravure printing lines. Peristaltic pumps for adhesive and coating dosing in packaging machine applications.
🏗Construction & Hydraulic Tools
Air-operated hydraulic power units and pumps for powering hydraulic torque wrenches, crimpers, and jacking equipment on construction and maintenance sites.
🌿Food & Beverage
Peristaltic pumps for hygienic ingredient dosing and fluid transfer. Food-grade hose kits and easy sterilization-in-place (SIP) capability.
🔌Water & Wastewater
Diaphragm pumps for chemical dosing of flocculants, pH adjustment chemicals, and disinfectants. Peristaltic pumps for sludge and slurry transfer.
✈Transportation & Fleet
Drum and transfer pumps for engine oil, transmission fluid, and coolant dispensing in workshop bays. Air-powered units for facilities with shop air but no dedicated fluid dispensing equipment.
🔢Energy & Power Generation
Air-driven hydraulic pumps for valve actuation and maintenance tooling. Transfer pumps for lubricant and hydraulic fluid management in generating plant maintenance.
📄Laboratory & Pharmaceutical
Peristaltic pumps for precise reagent metering, media filling, and fluid transfer where contamination prevention and easy changeover are critical.
Common Questions
Frequently Asked Questions
What is the difference between a transfer pump and a drum pump?
The terms are often used interchangeably, but there is a distinction in usage. A
drum pump typically refers to a pump designed to mount directly into the bung of a drum or pail using a down tube, drawing fluid up from the container. A
transfer pump is a broader term covering any pump used to move fluid from one container or point to another — this includes drum-mounted pumps but also inline and portable configurations. In our product range, both types are stocked under Drum Pumps & Accessories.
What pump ratio do I need for grease versus oil?
Pump ratio determines the output pressure relative to the inlet air pressure. For light oils (ISO VG 32–68), a
3:1 or 5:1 pump is typically sufficient. For heavier gear lubricants (ISO VG 220–680), a
10:1 to 15:1 pump is more appropriate. For
NLGI 2 grease, a high-ratio pump in the
30:1 to 50:1 range is required to push product consistently through distribution lines. If you are unsure, tell us the fluid grade and we can recommend the correct ratio.
When should I choose a diaphragm pump over other pump types?
Choose a diaphragm pump (AODD) when you need to transfer aggressive, abrasive, or shear-sensitive fluids; when a seal-less design is required for safety reasons; or when the pump must be self-priming and capable of running dry without damage. Diaphragm pumps are also the correct choice when the fluid is incompatible with the shaft seals used in centrifugal or gear pumps. They are widely specified for chemical, paint, adhesive, and wastewater applications for these reasons.
What is a peristaltic pump and why is it used for dosing?
A peristaltic pump works by compressing a flexible hose or tube with rotating rollers, creating a positive-displacement pumping action. The fluid contacts only the inside of the hose — never the pump body — which eliminates contamination, makes cleaning straightforward, and allows the hose to be changed without disassembling the pump head. Because flow rate is directly proportional to motor speed, peristaltic pumps provide highly accurate and repeatable metering, which makes them the preferred choice for chemical dosing, ingredient metering, and laboratory dispensing.
Can an air-driven hydraulic pump replace an electric hydraulic power unit?
For many maintenance and tooling applications, yes. An air-operated hydraulic pump is a practical alternative to an electric HPU where a compressed air supply is available but electrical power is not convenient — such as on a construction site, in a confined space, or at a remote maintenance location. The key limitations are flow rate (air-driven pumps are lower flow than comparable electric units) and the need for a clean, adequate compressed air supply. For high-cycle or continuous-duty applications, an electric HPU is generally the better choice.
Does MRO Stop stock replacement parts and repair kits for pumps?
Does MRO Stop support account-based purchasing for maintenance and engineering teams?
Yes. MRO Stop runs on OroCommerce, which supports company accounts with multiple users, purchasing approval workflows, saved shopping lists for recurring pump supply orders, cost-centre tracking, and order history export. Contact our team to set up an account structure that fits how your team manages procurement.
