Plunger Pumps – Application and Maintenance Tips

Plunger pumps are today used in a variety of application areas in the automotive sector. These include gearbox, belt drive, or coupling drive systems driven by electric motor or gasoline driven systems. Unlike piston pumps they are ideal only for lower pressure applications.

They have the capability to be configured in four different ways namely direct-acting or indirect-acting; simplex or duplex; single-acting or double acting; and power pumps to use in specific industrial sectors. So, whatever your area of operation is, it is always recommended that you use only those plunger pump variety that meets your volume and pressure requirements. And yes, for their smooth running, it is very essential that they are maintained properly. This ensures that you have to replace them only after 5 to 10 years in service. And yes, if you are ready to make huge investments then it is advisable that you go for proper servicing and accordingly it would run efficiently for 40-50 years.

Among the well known names in the plunger pumps industry are Gardner Denver and B-Master etc. Whatever brand you go for always make sure that you purchase a packing gland wrench for tightening plunger packing on all kinds of plunger pumps. Also, do get a hammer style valve cover wrench for pumps with threaded valve covers.

Also make sure to that you use the high pressure system accessories to match the performance and liquid-end construction of your pumps whether they are pressure washer pumps, or tri-plex plunger pumps. These accessories go a long way to assure safe and optimal system performance. They also help in the proper maintenance of your pumps by providing optimal system protection, regulating pump performance and also expanding the flexibility of the system.

The various accessories for plunger and piston pumps include nozzles, pressure regulators, trigger guns, underloaded, secondary relief valves, gauges, pressure regulators and filters among many others. Other maintenance tips for plunger pumps include checking for leaks and tightening the screws if you find oil dripping for more than 3 to 5 drops every minute. But, also take extra care not to tighten them more than is required as this may result in their breakdown.

This is especially true in the case of ceramic plungers that are used in salt water environment. As the replacement cost of plunger pumps or, for that matter any other pumps is quite costly, it is imperative that you take proper preventive measures in the appropriate time.