A special cartridge mechanical seal which has been designed and tested to the American Petroleum Institute’s API 682 standard.

A mechanical seal or lip seal(s) contained in a preassembled housing to aid in the seal’s installation, maintenance, and replacement.

Any seal consisting of one or more elastomeric O-rings. These may be static seals wherein there is no relative motion between parts (i.e. an O-ring seal between a pump casing and bracket) or dynamic seals wherein the seal is created between a moving shaft and a stationary housing (i.e. O-Pro® shaft seals).

Consists of a flexible elastomeric lip in a rigid housing. The lip seal is stationary and the shaft rotates inside. Click here to view the Pump Report on this topic.

Comprised of two independent shafts; one connects to the drive and other connects to the pumping elements. A magnetic coupling transmits the rotation of the drive shaft to the driven shaft inside the pump. Click here to view the Pump Report on this topic.

Consist of two basic parts called faces. One face rotates with the shaft, while a second is held stationary in the pump housing. The primary seal is created between these two seal faces. Click here to view the Pump Report on this topic.

Typically consists of braided or formed rings that are compressed in the stuffing box of the pump. As the packing is tightened, it squeezes up against the shaft and the stuffing box wall to create the seal. Click here to view the Pump Report on this topic.

Any pump wherein the seal is located directly behind the rotor, isolating the shaft bushings or bearings from the pumped liquid. An alternative to pumps with seals located in the stuffing box.