Lubeblog

Interactive Lubrication Troubleshooting Guide

MIDLAND, Mich. - May 18, 2006 - Maintenance engineers, plant managers and original equipment manufacturers around the world can now find solutions to virtually any lubrication problem through the new Interactive Troubleshooting Guide online at www.molykote.com.

Nailing logic element leakage

By Brendan Casey

One of our readers wrote to me recently with the following question:

“In one of our applications we are using NG 40 cartridge valves (sleeve, poppet and logic cover). With the valve closed and the inlet port pressurized to 315 bar, we are seeing a leakage from the outlet port in the order of half a liter per minute. Is this level of leakage acceptable?”