Pipeline Valve

Pipeline Valve

 

a device in pipelines for controlling the flow of a liquid, vapor, or gas. Large valves have monolithic cast bodies with flanges; small valves are threaded for connection to pipes, pumps, and other machines. In the simplest valves the valve stem is turned manually by a handwheel; a hydraulic or electric motor, which is actuated by a change in pipe pressure, is used for automatic control. Valves are widely used in industrial pipelines and sanitary-engineering installations.

References in periodicals archive ?
The jury deadlocked on a separate charge of sabotage against Ken Ward, 60, who broadcast live on Facebook last October as he cut through chains to access the pipeline valve as part of a coordinated, multi-state protest.
Plant controller David Roscoe suffered scalding after being engulfed by steam which escaped from a defective pipeline valve at the coal-fired power plant in October 2013.
on February 11, is believed to have emanated from a faulty slurry pipeline valve.
The aim of the assault was to capture intact an oil pumping station and pipeline valve in order to prevent their destruction by Iraqi forces and the subsequent environmental pollution of the Persian Gulf.
Lieutenant Colonel Ben Curry, a Royal Marines spokesman in Kuwait, said the aim of the assault was to capture an oil pumping station and pipeline valve to prevent it being destroyed by Iraqi.
Other capabilities include managing and generating bills of material, incorporating pipeline valve and trench/receiver data and quickly plotting alternative pipeline routes using its logic-based system.
While it is one thing for irregularities to trigger an intentional shutdown, such as closing a pipeline valve when a sharp pressure drop is detected, developers of robust controllers strive to turn irregularities into soluble mathematical problems.
An operating pipeline pressure of approximately 1480 psi (102 bar) was maintained throughout the operation, which made it possible to safely remove and replace a pipeline valve in a remote desert in North West Australia.
The aim of the assault was to capture intact an oil-pumping station and pipeline valve in order to prevent their destruction by Iraqi forces and the subsequent environmental pollution of the Persian Gulf.
UK-based Rotork has announced the launch of the next generation of gas-over-oil pipeline valve actuators -- the Rotork Go range.
For instance, a UPS powering a PLC responsible for controlling a key pipeline valve or pump control may be subject to outside sabotage through its unsecured SNMP/ HTTP, Telnet, SMTP and other ports on the network Ethernet interface.
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