What the KMPS Series Does
The KOWA KMPS series is a hand-operated dual line grease pump for centralized lubrication systems that require no power utility at the point of use. This aftermarket equivalent delivers grease to grouped bearing points through two alternating supply lines, making it practical for heavy equipment, conveyors, and machine tools in remote or mobile service situations. KOWA is a trademark of its respective owner. This is an aftermarket pump, not manufactured, sponsored, or endorsed by KOWA. KMPS designations are for cross-reference identification only. The pump is commonly used where a manual lubrication route covers multiple points and a simple lever stroke is preferred over electrical or pneumatic pumping.
Specifications
| Operation type | Manual lever, hand-operated |
| System type | Dual line two-line centralized lubrication |
| Max output pressure | 20.6 MPa (210 kg/cm2, about 3,000 psi) |
| Discharge per stroke | 4.5 cc |
| Reservoir | 2 L acrylic / 3 L steel / 6 L steel by model |
| Weight | 16 / 20 / 23 kg by model |
| Grease compatibility | NLGI #0 to #1 |
How Dual Line Lubrication Works
A dual line system uses two main supply lines that are pressurized alternately. A manual reversing valve switches the two lines during operation so each connected dual-line metering valve can discharge its set amount to one bearing point per cycle. KOWA documentation shows pump-and-valve arrangements that vary by package. Buyers should confirm whether the reversing valve is mounted on the pump or supplied as a separate panel component for their configuration. Learn more about dual line lubrication systems for complete metering and line layout guidance.
Choosing a Tank Configuration
The KMPS-221 offers a 2 L acrylic transparent tank that lets operators check grease level at a glance during maintenance rounds. The KMPS-231 with a 3 L steel tank and the KMPS-261 with a 6 L steel tank are better suited to larger point counts or longer refill intervals where visual inspection is less convenient. Choose acrylic when quick visual confirmation matters most, and choose steel when capacity or impact resistance is the higher priority. Request tank configuration pricing through the quotation form.
Manual Lever Operation
This pump requires no electricity and no compressed air supply. Each full lever stroke displaces 4.5 cc of grease into the dual line circuit, giving the operator direct control over lubrication volume per cycle. The manual design works well for maintenance routes, stationary equipment without nearby utilities, and locations where adding power connections would be impractical. For other hand-operated options, see the range of grease pumps.
Grease and Oil Service
The KMPS series is rated for NLGI #0 to #1 grease, meaning fluid to soft greases that flow readily through dual line metering valves. Oil service is also available with system configuration when the application requires liquid lubricant instead of grease. Stiffer grease grades above NLGI #1 should be confirmed with the supplier before use because higher consistency can affect lever effort and distribution performance. Read more about centralized lubrication to understand how pump, lines, and metering valves work together.
Frequently Asked Questions
Does the pump need electricity or compressed air?
No, the KMPS series is entirely hand-operated with a manual lever. It works without any power or air supply at the installation point.
What does the 20.6 MPa figure mean?
It is the maximum output pressure the pump can produce, about 3,000 psi. This pressure rating applies to the pump discharge side only.
How much grease comes out per stroke?
The pump discharges 4.5 cc of grease per full lever stroke. Repeated strokes build pressure and move grease through the two lines.
Which grease grades can this pump handle?
The pump is rated for NLGI #0 to #1 fluid to soft greases. Stiffer grades should be confirmed with the supplier before use.
What does the reversing valve do and where does it mount?
A manual reversing valve switches the two lines during operation so each line pressurizes alternately. KOWA documentation shows pump-and-valve arrangements that vary by package, so confirm mounting details for your configuration.
Which tank configuration should I choose?
The 2 L acrylic tank allows visual grease-level checks without opening the reservoir. The 3 L and 6 L steel tanks suit larger point counts or longer refill intervals.
How is dual line different from progressive lubrication?
Dual line uses two alternating main lines and metering valves that discharge when line pressure changes. Progressive systems use a single line with dividers operating in sequence, so layout and monitoring differ.
Can this pump handle oil instead of grease?
Oil service is available with system configuration when the application calls for liquid lubricant. Confirm the required seals and metering setup with the supplier first.
Is this made by KOWA?
No, this is an aftermarket pump and is not manufactured, sponsored, or endorsed by KOWA. KMPS designations are used only for cross-reference identification.
Can I get a quotation for this pump?
IsoHiTech Lubrication Systems, founded in 2023, engineering since 2006, builds and supports every unit. Email inquiry@isohitech.com for specifications and a quotation.
For a direct pricing request, use the quotation form or email the address above.
