05242016Tue
Last updateTue, 24 May 2016 3pm

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Industry and Regulatory Changes in Offshore Operations

Industry and Regulatory Changes in Offshore Operations

On May 13, 2016, the offshore oil and ga...

Strategies for Successful SIS Valve Diagnostic Implementation

Strategies for Successful SIS Valve Diagnostic Implementation

End users and contractors alike strive t...

Stop Check Valves

Stop Check Valves

Stop check valves are vital to several i...

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Industry Headlines

MRC Global Expands Service to Chemours in the U.S. Gulf Coast

23 HOURS AGO

MRC Global Inc. announced that its subsidiary, MRC Global (US) Inc., has been awarded an agreement to be the primary provider of pipe, valve, fitting (PVF) products and services to all U.S. locations of The Chemours Company. The five-year agreement added the Gulf Coast region and also includes valve a...

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Sunbelt Supply Opens Shanghai Valve and Automation Center

4 DAYS AGO

Sunbelt Supply celebrated the grand opening of its new Valve and Automation Center with an open house on May 12, 2016 in Shanghai, China. The open house welcomed 80 customers and manufacturers. Attendees toured the newly stocked warehouse and automation center .

Sunbelt Supply Shanghai is a joint ventu...

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Gulf Coast Petrochemical Boom Contributing to Global Plastics Glut

2 HOURS AGO

A surge in new plastics chemical capacity coming from low-cost producers in North America (specifically the U.S. Gulf Coast), the Middle East and China is driving the global market for key plastics polyethylene (PE) and polypropylene (PP) to oversupply, which will pressure margins for producers and ...

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U.S. Chemical Production Stalled in April

1 DAY AGO

According to the American Chemistry Council (ACC), the U.S. Chemical Production Regional Index (U.S. CPRI) was flat in April , following a 0.4% gain in March, and a 0.1% decline in February, as measured on a three-month moving average (3MMA). In April, the Gulf Coast was the only region to post a smal...

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Markit PMI Shows U.S. Manufacturers Stagnating in May

2 HOURS AGO

The U.S. manufacturing sector crept closer to stagnation in May, with the seasonally adjusted Markit Flash U.S. Manufacturing Purchasing Managers’ Index (PMI) registering only slightly above the neutral 50.0 mark at 50.5. This was down from 50.8 in April and signaled only a marginal improvement...

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Why Innovation is the Key to U.S. Manufacturing Growth

1 DAY AGO

Manufacturing may be facing some headwinds, but it’s undeniably in the midst of a technological renaissance that is transforming the look, systems and processes of the modern factory. Despite the risks — and despite recent history — industrial manufacturing companies cannot afford ...

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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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