GFS General Service Packing is designed and manufactured to work across a wide range of dynamic rotary and reciprocating sealing environments. Materials below contain a variety of patented fiber-infused PTFE yarns with graphite, other impregnated fillers.
These materials offer greater strength with fewer braid unraveling problems, and long life in abrasive situations. Surface lubricant allows for easier run-in, and a reduction in shaft and sleeve wear lowers operational costs. Most importantly versatile, multi-use packing means lower inventory stocking costs.
This blog will discuss 6 different types of general service compression packing in order to assist you with proper selection for your application.
Contamination is a major cause of equipment failure, as well as, compromising the performance of an oil. Filtering the oil prior to use and while in use is essential for increasing equipment reliability. Materials that may be used to filter oil are paper, wood pulp, waste, felt and special clays. In most types of filters, the dirty oil is pumped in under pressure and emerges as cleaned oil, leaving the dirt in the filter. There are several types of filters that are used to filter out particles and water. Among these are cartridge filters, cloth, paper and metal, and coalescing filters. Some types of adsorbent filters include activated carbon, Zeolite, Fuller’s Earth and activated alumina.
When beginning the selection process of a filter, use the absolute rating to determine the effectiveness of a filter. The oil passes through the sized opening of the media. In a nominal filter, there is no guarantee that all the pores are the rated size. The term ‘Nominal’ is an arbitrary micrometer
The shape and size of irregularities on a machined surface have a major impact on quality, performance (leakage), and longevity.
Whether you're working with o-rings, gaskets, or oil seals, each has a unique surface finish recommendation. Optimizing and staying within the recommended limits will help your equipment maintain longer uptime and better sealing performance.
Improving and controlling the ideal surface roughness will usually increase manufacturing costs, which often presents itself as a trade-off between the cost to manufacture the hardware and application performance.
Properly defining, measuring, and controlling surface finish is critical to the functional reliability and service life of a seal.
Freudenberg Sealing Technologies is introducing a new generation of electrically conductive seals. In addition to preventing bearing damage caused by electrically-induced corrosion, the seals also increase electromagnetic compatibility. With these products, the supplier is making an important contribution to high-performance electric drives.
Electric cars with drive systems that operate at 800 volts instead of the usual 400 can recharge in just 15 minutes and produce enough power to drive several hundred kilometers. The power semiconductors in the inverter ensure that the direct current stored in the battery is converted into the alternating current required by the electric motor while driving. These power electronics are often positioned directly above the electric motor and are also known as an electric engine injection systems.
O-rings are the most common sealing product in the world. An O-ring is a versatile solution that will effectively seal every time, assuming that basic design parameters are followed. It is also an inexpensive sealing solution compared to other products. An O-ring should always be considered for a seal application due to its low price and availability.
This blog and is the first in a multi-part video webinar series on the basics of o-rings.
Here we’ll discuss the basic functionality and design principles of spring energized seals and discover why one might be the perfect sealing solution in your application. This article was written by GFS supplier/partner Eclipse Engineering.
Spring energized PTFE seals perform reliably in a variety of applications where conventional elastomeric seals fail due to chemical attack, extreme heat or cold, friction, extrusion or compression set.
During an initial expansion joint Preventative Maintenance and Reliability (PMR) Service performed at the paper mill, it was determined that several competitor joints required replacement. These pipelines carry water, pulp, black/white liquor, bleach, and CIO2.
Though recommended for replacement on the Garlock Preventative Maintenance and Reliability (PMR) report, the mill postponed purchase. To date, four of those items flagged for replacement have failed - with the most recent failure resulting in an administration building filling with 4 feet of pulp.
The shape and size of irregularities on a machined surface have a major impact on quality, performance (leakage), and longevity.
In order to control the manufacturing process or predict a component’s behaviour during use, it is necessary to quantify surface characteristics by using surface texture parameters.
Part 5 of our video series on Surface Finish will discuss Amplitude Parameters.
Amplitude Parameters are measures of the vertical characteristics of the surface deviations.
In this section, we will dive into: