TPi July 2016

products & developments

Simplifying petrochemical sampling and analysis

for Zones 2 and 22 hazardous area operation, environmentally protected to IP66 and equipped with self-adaptable 24240V AC/DC power supplies. RedMax actuators are one of a range of electrical products designed by Schischek for explosion-proof and non-explosion- proof applications in the worldwide industrial, HVAC and marine industries. Rotork products and services help companies in the oil and gas, water and waste water, power, marine, mining, food, pharmaceutical and chemical industries around the world to improve efficiency, assure safety and protect the environment.

temperature through the spectrometer. Swift valve operation (typically less than three seconds) is essential to maintain the characteristics of the media for accurate sampling. Additional application constraints involve restricted space around valves, the hazardous area classification, and requirements for failsafe operation, end of travel indication and low power consumption. After considering the other options, Ecopetrol concluded that the electric Schischek actuator could satisfy all these demands with a reduced maintenance requirement in the demanding operating environment. Almost 100 Schischek RedMax actuators with associated hardware have been installed. The actuators are certified

Rotork Schischek compact explosion- proof valve actuators have been selected as the solution for a critical petrochemical analysis process. Ecopetrol is a petroleum company in Colombia, and is engaged in oil and gas exploration, production and refining. The company uses near infrared spectroscopy (NIR) to perform quantitative sampling separation of hydrocarbons. The process separates the hydrocarbons into four chemical groups – alkanes, aromatics, resins and asphaltenes. Central to the operation of the process, sets of small two- and three-way fast- acting ball valves are used to gather the samples for analysis and precisely maintain the pressure, flow and Flexenergy, a UK provider of district heating scheme (DHS) pipe networks, has developed a pre-insulated valve system for polybutene (PB-1) pipe applications. The company states that V-Flex will transform the ability of operators to control and service PB networks by delivering zonal control via pre-insulated valve technology that can be fusion welded directly to the main network. The valve innovation includes a key- operated steel ball valve inside a polyethylene casing, insulated by PUR foam, and incorporates PB tails for a fully welded connection to a polybutene pipe network. “The V-Flex valve system means it is now possible to create an all-plastic fusion weld to the main network, thereby avoiding a secondary joint, with its inherent weakness,” said Sandy Fairley, sales director at Flexenergy.

Rotork plc – UK information@rotork.com www.rotork.com

Flexenergy launches PB pipe network control

(to accommodate depth variation), in order to provide flexibility in network or zonal control. In practice, V-Flex technology means that in the case of a burst, the affected area of the network can be isolated rather than the entire system being shut down. Each chamber provides easy access to the valve, and includes a lockable lid as an option.

for plastic pipe systems, and the company expects it to be welcomed by DHS designers for providing greater control over heat networks. In effect, it means that the valves can be used to shut down entire networks or to isolate individual streets/properties. This makes network maintenance easier, and can also facilitate network extension. The valves can be specified for single or twin pipe applications, and are available in a number of chamber sizes

Flexenergy Ltd – UK office@flexenergy.co.uk www.flexenergy.co.uk

Flexenergy’s V-Flex pre-insulated valve system

This is claimed to be the first such pre- insulated valve system to be available

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July 2016 Tube Products International