Product Information

Pump Types

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Pumps can be classified into a number of categories depending on how they operate. One of the largest categories is positive displacement, which includes our pumps. There are several other types of pumps in this category, each suited to differing applications.

Diaphragm and ram pumps are almost identical in operation, differing only in the type of actuator used. The diaphragm or ram is moved backwards and forwards in a reciprocal motion to draw fluid into, and push fluid out of the pumping chamber. Valves are used to constrain the flow into one direction. The flow volume is driven by the displacement of the diaphragm or ram and the frequency of the reciprocating motion. In our pumps, as they are mainly driven by a geared motor, we refer to the RPM of the geared motor as the ‘speed’ of the pump. As our pumps are driven by a reciprocating motion, we often recommend fitting surge arrestors (pulsation dampers) to our pumps. These help smooth out the flow, protecting the pump and pipework.

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About us

Energy Chemical & Equipment Company has been designing and manufacturing Energy Ram and Diaphragm Pumps since 1984, the year manufacture for our first patented product was put into operation.

We are one of the last manufacturers of industrial pumps in the UK that continues to develop traditional engineering skills and provide an outlet for quality British products.

We design and manufacture an extensive range of Ram and Diaphragm pumps primarily for the Waste Water Treatment industry in Southwell, Nottinghamshire. Over the years, we have developed a good relationship with our customers, and the key to our success is their satisfaction with our products and services.

Our Range of Pumps include;

Diaphragm Pumps
Our range of diaphragm pumps has a long established heritage within the Wastewater and Waste Process industries because of their simple design, ease of maintenance, and robust construction.

There are variable speed options available for our pumps, although they are generally self-priming. Diaphragm pumps are available with flow rates ranging from 0.2 to 14 litres per second (from 1 to 50 litres per second) with a working pressure maximum of 2.5 bar to suit a huge range of applications.

Maxi Diaphragm Pump
With its easy maintenance, robust construction, and favourable whole life costs, our Maxi diaphragm pump has a long history of being used in wastewater and waste process applications.

Major Diaphragm Pump
Self-priming Major pumps are generally fixed speed, although variable speed options are available. This pump is suitable for use across a variety of applications, with a flow range of 0.6L/s up to 4L/s (2.2M3/hr. up to 14.5M3/hr.) and a maximum working pressure of 2 Bar.

Ram Pumps
Similarly to our diaphragm pumps, our Ram Pumps are designed and manufactured with quality and reliability in mind. In the wastewater and waste process industries, their reputation for easy maintenance, robust construction, and favourable whole life costs has long been established.

We offer self-priming and variable speed pumps, although we also offer self-priming pumps with fixed speeds. Mechanically driven and hydraulically driven variants are available. Pumps with flow rates up to 30 liters per second (100 m3/hr.) and a maximum working pressure of 16 bars are an alternative to our diaphragm pumps.

Mallard Ram Pumps
Mallard ram pumps are mechanically driven, and have a flow rate of up to 7.5 liters per second (26 m3/hr). Mallard Bullfrog valves can achieve pressures up to 4 Bar. Our Camel ball valves can, however, handle up to 6 Bar of pressure if you need a greater pressure handling capability.

Mallet Ram Pumps
In the same way that our diaphragm pumps are made with quality and reliability in mind, Ram Pumps are made with the same commitment. In our range of ram pumps, we have mechanical 240mm pumps and hydraulic 480mm pumps. There is a pump for almost every application because there are so many sizes available.

We control our hydraulic ram pumps by our own software, developed "in-house", so we can tailor it to your exact needs, ensuring max performance. Additionally, we offer hydraulic pumps in a duplex configuration, which allows for higher flow rates and pressures up to 16 Bar.