How Does a Single Speed Pump Work?

A single speed pump is a hydraulic pump that forces hydraulic fluid into a cylinder bore through a hose or other connection. It is one of the easiest pumps to use, containing a pumping piston, a safety pressure release valve and suction/ delivery check valves.

As a manual hydraulic tool, the single speed pump is designed for safety and ease of use; here’s how it works:

Functions of a Single Speed Pump

To use a hydraulic pump like the HP110, you must close the valve and manipulate the handle up and down to drive fluid from the reservoir to the pump outlet connection. The downward motion of the pump handle combined with the opening and closing of the suction and delivery check valves causes an increase in hydraulic fluid pressure.

In a single speed pump, with a max working pressure of 10,000 PSI, the pressure release valve returns oil to the reservoir when the pump tries to exceed 10,000 PSI operating pressure. Winshaw Hydraulic Tools’ HP manually operated hydraulic tools include single speed pumps with a pre-filled oil reservoir which can be used right away.

The HP110 single speed pump is one of our top hydraulic tools and here’s a look at its basic operation.

Advantages of a Single Speed Pump

A single speed pump is usually more affordable than a two-speed pump and typically offers more oil per stroke. However, it is more difficult for single speed pumps to work at higher pressures as they require more handle effort.

A single speed pump is ideal for applications where independent, portable hydraulic power is needed. Winshaw Hydraulic Tools’ HP single speed pumps are safe, durable with steel reservoirs and simple to use.