New pumps for high-pressure, high-temperature applications

A new positive displacement axial piston pump, which is said to deliver “outstanding performance in high pressure, high temperature applications” has been introduced by precision micro-hydraulic specialists THE LEE COMPANY.

“The HPHT family of pumps can generate up to 10,000 psid (690 bar) at temperatures of 400ºF (200ºC), so are ideal for critical hydraulic fluids transfer applications, such as down hole oil tools and aerospace.”

An important benefit of the innovative axial piston design of these pumps singled out by the company is that they don’t contain any elastomers, which increases resistance to contamination and significantly improves reliability in the most challenging applications. Also, the 32mm pump is a simple, drop-in replacement for existing pumps that are restricted to lower temperature applications, due to the inclusion of elastomeric seals.

Over 1,000 hours of operation

While HTHP pumps are officially rated to produce pressures of 10,000psi, they actually have the capability of producing even higher pressures and are qualified for over 1,000 hours of operation and will withstand high levels of shock and vibration, it is further stated. They are designed to be driven by a Maxon Motor, with or without a gearbox, and drive couplings are available separately.

The pumps are available in 22mm and 30mm diameter options for packaging flexibility, “benefits which will be especially appreciated in limited space applications, such as down hole,” adds THE LEE COMPANY. Cylindrical Hi-Bar inlet screens that slide onto the pump body are also available as an option. The pumps can be customised to meet specific application requirements, such as altering the mounting configuration or the inlet and outlet connections.