Seals

Latest Seals Articles

Many associations, societies and regulatory agencies have rewritten and redeveloped emissions and leakage standards and controls year after year.

Many associations, societies and regulatory agencies have rewritten and redeveloped emissions and leakage standards and controls year after year.

Many associations, societies and regulatory agencies have rewritten and redeveloped emissions and leakage standards and controls year after year.

Many associations, societies and regulatory agencies have rewritten and redeveloped emissions and leakage standards and controls year after year.

When discussing expansion joint selection, the conversation typically focuses on the quality, durability and capabilities of the expansion joint. However, the expansion joint’s role in the overall energy efficiency and optimization of the piping system is often overlooked.

High performance liquid chromatography (HPLC) is a chemical analysis technique with wide applications, from food and medical safety to manufacturing. HPLC can detect vitamin D levels in blood serum or performance enhancing drugs in urine. The technique has even been used to synthesize blood and determine DNA evidence in forensic investigations.

Within the oil and gas industry, the rotating shafts of equipment—such as pumps, motors, compressors, gearboxes and turbines—perform an essential function in both upstream and downstream applications. This rotating equipment ensures process flow and the safety of employees and the surrounding community.

One of the oldest sealing devices, compression packing is still very common in modern industries such as oil and gas, petrochemical, agriculture, pulp and paper, power generation, and mining. Compression packing is made from a range of soft and pliable fibrous yarn materials—from vegetable and animal fiber to many high-performance synthetic fibers.

A leak rate of one drip per minute equals about a liter (quart) of water in three days. For an O-ring on a submersible pump, that is a major problem. O-rings are often used for static seals on submersible pumps. Understanding what makes a good static seal and what causes one to leak is important for pump maintenance and repair technicians.

Part One of this series explained how the clamping force on a bolted flange connection (BFC) can play a major role in preventing gasket blowout. In fact, more often than not, it is the single most important factor. Part Two discusses the two most important strategies to use for applying the correct clamping force.

Topic Sponsor

Columns

I hope that my last column (Pumps & Systems, September 2014) provided a clearer definition of power factor and how it can be calculated.

Who determines where pressure gauges are located in a pump system? How close to the pump should they be, and what happens if these rules are not followed?

A reciprocating power pump, as depicted in Figure 1, is a displacement machine. It has characteristics that are different than a centrifugal pump.

Blogs

The global water crisis claims 5,500 lives each day—more than war, natural disasters, AIDS or hunger. It is a sobering problem but not an impossible one to solve.

ASTON, Pennsylvania (Sept. 18, 2014) – The Mid-Atlantic Pump & Process Equipment Symposium X was held Sept. 18, in Aston, Pennsylvania. Nearly 300 individuals representing 110 organizations that are customers of Geiger Pump and Equipment attended the single-day symposium.

See also:

Upstream Pumping Solutions

© Copyright Cahaba Media Group 2014. All Rights Reserved. Privacy Policy