Original article date: September 1999
Developing a concept originally aimed at sealing liquids Feodor Burgmann has introduced a version of the CSR aerodynamic clearance seal for gases and gases containing solids.
The CSR type aerodynamic clearance seal consists of a split carbon graphite restricting ring that is held together by a tension spring around its circumference. Pockets [...]
Original article date: March 1998
The European Sealing Association says that with the advent of asbestos-free sealing materials engineers need guidance about the new approaches required. Consequently it has published a technical glossary relating to flange and gasket sealing terminology aimed at end users OEMs and contractors.
The publication contains descriptions of all the common terms used [...]
Original article date: July 2000
Coriolis flowmeters are adding flexibility to fluid weigh platforms
For many years, manufacturers of industrial liquids have used weigh-filling systems to monitor the quantity of product delivered into the final drum or container. A recent design from RCS Filling Machines monitors the weight of fluid dispensed using a Coriolis Mass flowmeter from [...]
Original article date: May 1999
Best known for its manufacture of magnetically coupled plastic pumps Totton Pumps has now entered into an agreement with Fluid Metering a company based in New York to produce an accurate metering pump for the European market.
AF piston pumps operate with only one moving part. The patented design utilises a single [...]
This article was originally written in the period 1995-2000
The selection of the right pump for the job is primarily a matter of matching the required performance range against the capability of each product type, as shown in the accompanying charts.
With over one million pump units sold into more than 35 countries, ASF Thomas supplies a [...]
Original article date: September 1998
Finally the Government has confirmed the long-awaited expectation that it would introduce a ban on the import supply and use of all asbestos-containing products. The sealing industry expects a ban on asbestos to be in force by the end of 1998 or early in 1999. So what now?
Comprehensive ranges of alternative [...]
Original article date: September 1998
Gas-lubricated mechanical seals are a modern service-proven alternative for sealing gaseous or liquid media in machine components with rotating shafts. JOSEF NOSOWICZ ANFDREAS SCHRUFER and ULRICH RID of Feodor Burgmann explain the fundamentals.
In the compressor sector high performance gas-lubricated seals can replace throttle rings labyrinth seals and oil-lubricated mechanical seals. Low [...]
Original article date: May 2000
Where water levels have to be controlled, an innovative solenoid-operated coaxial valve has allowed automatic self-priming water pumps to work reliably and almost independently
In the past, water pumps have needed to be manually primed at regular intervals. Now, a new smart priming system from Sterling Pumps is a fully automatic vacuum [...]
Original article date: April 2000
Is it possible to have a pneumatic actuator that gives slow, smooth motion as well as a highly dynamic response? Tommy Miller investigates the Air Muscle
Pneumatic cylinders are commonly used where linear motion is required, but there are many applications where they are unsuitable. Their reliance on moving parts and seals [...]
Original article date: March 2000
A new free brochure from Conax Buffalo shows what’s available to assist when probes must pass through an environmental barrier without loss of integrity.
The plastic deformation of a sealant material within a fixed housing is the fundamental concept of Conax sealing technology, which is designed for situations where probes and other [...]