centrifugal pump mechanical seal for sale

Amechanical seal is the most common type of sealing component used on pumps in modern industry. Replacing out packing over the last 50 or so years, they have served to drastically reduce industry emissions, energy usage and downtime globally.

A mechanical seal for pumps can be subdivided into variable options depending on the type/specific application/design components/location and mechanical seal characteristics;

The major advantage of a cartridge seal over a component seal is ease of installation. Incorrect installation is a major cause of seal failure, cartridge seals remove many of the problems associated with seal change-out in the field.

Slurry Seal – mechanical seal engineered to cope with a heavy slurry process – i.e. abrasive, corrosive and viscous. Can handle up to 60% slurrys by weight.

A Pusher Seal is where there is a spring element in the seal (used to maintain contact of the seal faces). Spring types include Belleville, multi-spring, etc. This type of seal requires a dynamic secondary seal.

A gas seal is a double seal where the barrier fluid is a gas – in pumps, this is usually a gas lift-off seal. In a gas lift-off seal the faces are not in contact while the machine is running. They are separated by a thin gas film (flow). If operated correctly they have very low wear.

The above seal types can be combined (though it is not always best to do so i.e. a component gas lift off seal would require very close collaboration between the machine and seal manufacturers to achieve a reliable installation).

There are many other options for mechanical seals, if you have any technical queries on other combinations not listed above,  just contact one of our Mechanical Seal Specialists who will gladly discuss your application.

A mechanical seal flush is a piping set-up on a pump and seal assembly where a flow is induced in the seal chamber in order to improve MTBF of the mechanical seal. It is used to improve cooling, heating, remove solids and increase pressure (in combination with a neck or throat bush).

A mechanical seal quench is a piping set-up where a fluid is piped over the atmospheric side of a seal. It is generally used to prevent precipitation or crystallisation of a product or in some cases to aid cooling.

High Slurry process using Flowserve’s UNCD ® – Ultrananocrystalline diamond  seal face technology. Flowserve UNCD ® coatings offer material properties and performance advancement over all other seal face materials.

Slurry seal design expertise applications which previously required double mechanical seals can now be reliably run by using single mechanical seals, saving costs of barrier fluid systems, the costs of the barrier fluid itself & the associated running costs. This reduces energy usage & carbon footprint.

If you have a technical query around the installation of mechanical seals for pumps or have some concerns around seal failures, why not contact one of our seal specialists below to discuss it in more detail and find out how we can help solve your issues and get your process running again.

seals for PENTAX CM centrifugal pumps (CM32-160C, CM32-160A, CM32-200C, CM32-250C, CM40-125Bm, CM40-125C, CM40-160B, CM40-200A1, CM40-250BM, CM50-160A1, CM50-200B, CM50-200A1, CM50-250A, CM65-125A1, CM65-200C1, CM65-250A, CM80-160C1, CM100-160B , etc.), CA-4CA, CR, CB, CH, CHT, CS, MB

The ATP B3Z-S Counter-Clockwise, Mechanical Seal style Water Pump is a 4″x 3″ Centrifugal Frame Mounted Water Pump used on most over the road, 2K and 4K Water Trucks. This pump is GROOVED on both the suction and discharge side for easy removal and repair, and at 2500 RPM performs at a rate up to 750 GPM at 65 PSI. When driven directly via PTO, this pump is primarily used for trucks with Standard Transmissions. Hydraulic Drive is also available by adding a Hydraulic Adaptor, 115-B07779.