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Last updateThu, 30 Mar 2017 2pm

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The Challenges of Slurry Valve Packing

The Challenges of Slurry Valve Packing

Because of the difficulties of dealing w...

The Many Layers of Valve Qualification

The Many Layers of Valve Qualification

While there has been much rhetoric from ...

Valves Help Achieve Net-Zero Water Use

Valves Help Achieve Net-Zero Water Use

With drought and climate change affecting ...

Valve Selection in Pulp and Paper Operations

Valve Selection in Pulp and Paper Operations

Over the centuries, the pulp and paper i...

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Industry Headlines

Industry Headlines

Wolseley Announces Name Change, CEO Succession

20 HOURS AGO

Wolseley plc is officially changing its name to Ferguson plc, subject to shareholder approval. Ferguson is the most significant brand in the Wolseley Group of companies and accounts for 84% of the Wolseley Group’s profitability.

The company also announced that CEO Frank Roach will retire on July ...

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Spirax Sarco Employees Build Prosthetic Hands for Children

1 DAY AGO

Spirax Sarco hosted their annual charity event at the Westin Hotel in Savannah, GA on Saturday, March 11, 2017 where participants built prosthetic hands for children in third-world countries who are missing limbs.

There are 300,000 landmine rated amputees globally and 20% of those are children. Emplo...

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Permian Drillers Acquiring Slivers of Land for Horizontal Drills

2 HOURS AGO

With horizontal drilling in the Permian Basin allowing producers to “drill longer wells than ever before, companies such as Pioneer Natural Resources Co., Parsley Energy Inc. and Double Eagle Energy Permian LLC are increasingly haggling with other producers for slivers of land that allow them ...

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In Blow to Nuclear Industry, Westinghouse Files for Bankruptcy

1 DAY AGO

“The Westinghouse unit of Japanese technology giant Toshiba plunged into Chapter 11 bankruptcy Wednesday as the Cranberry Township, Pa.-based division faces cost overruns and delays with its U.S. nuclear plant projects,” reports USA Today .

“The company said the bankruptcy does not aff...

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Richmond Fed: Manufacturing Grows at Fastest Rate in Nearly Seven Years

2 HOURS AGO

Manufacturers in the fifth district were generally upbeat in March, according to the latest survey by the Federal Reserve Bank of Richmond. The index for shipments and new orders both rose and employment gains were more common. This improvement led to a composite index for manufacturing that rose from...

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Consumer Confidence Reaches 16-Year High in March

2 HOURS AGO

The Conference Board Consumer Confidence Index, which had increased in February, improved sharply in March. The Index now stands at 125.6, up from 116.1 in February. The Present Situation Index rose from 134.4 to 143.1 and the Expectations Index increased from 103.9 last month to 113.8.

“Consum...

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Triple Offset Valves in Upstream Applications

vmspr12_upstream_photo1Triple offset valves provide an efficient solution for critical and non-critical applications when positive isolation is required in upstream oil and gas operations. Their compact nature offers savings in weight and space and most importantly, cost.

Most onshore and offshore installations traditionally use ball valves and occasionally gate valves for the majority of flow isolation applications. Specifications typically call for 6D valves, but engineers seldom look beyond these specifications to other valve types with similar or better performance.

Many of these engineers are not yet aware that in many offshore isolation applications, a triple offset valve (TOV) offers benefits in terms of weight, overall dimensions and performance versus the standard ball or gate valve. A TOV can be the right choice for applications in the turret of a floating production storage and offloading vessel (FPSO), and in virtually all topside process applications of FPSOs and platforms such as separators, water treatment, gas compression and other systems.

Today’s TOVs, with pressure ratings up to ASME Class 1500 and zero leakage, cover enough applications to achieve significant savings in weight and space, as well as total cost of ownership.


HISTORY

The TOV design was introduced in the early 1970s as the next great development after the high-performance butterfly valve. The design is totally different from conventional or high-performance butterfly valves, however, offering a 90-degree non-rubbing rotation and metal-seated zero leakage.

Since the TOV was introduced, it has become a success with end users in the downstream oil and gas, process and power industries. It is recognized as a reliable, robust and valid alternative to gate and globe valves as well as ball valves.

The TOV concept is applied in a wide variety of applications from cryogenic to high temperature and from low- to high-pressure where positive isolation is required. Since its introduction, more than 500,000 TOVs have been installed worldwide with an extremely wide range of sizes and ratings and different materials—from WCB to duplex and from CF8M to titanium.

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