Exclusive: Valve positioner for SIS uses

SVI II ESD from Masoneilan-Dresser, an extension of the company's SVI II AP valve positioner, marks the company's entrance into the safety system arena.

02/26/2007



SVI II ESD valve positioner from Masoneilan-Dresser is SIL3-compliant and said to be a one wire solution for emergency isolation valves.

SVI II ESD from Masoneilan-Dresser, an extension of the company's SVI II AP valve positioner, marks the company's entrance into the safety system arena. SIL3-compliant device is designed in accordance with IEC61508 and suitable for use in safety instrumented functions. The product is used as an emergency isolation valve controller equipped with state-of-the-art diagnostics to improve the overall safety integrity of the safety instrumented loop.

The company calls the product a breakthrough because it allows for a one-wire solution for both the safety shutdown function of an isolation valve and partial stroke testing (PST) capability. Masoneilan adds that making maximum use of artificial intelligence at the device level through analysis of incoming data from multiple sensors gives the user usable, actionable information regardless of PST execution method.

SVI II ESD can be implemented using a 4-20 mA signal, 0-24-V dc, or both. One 4-20 mA solution is said to be best because it is SIL3 capable at 4 mA and allows the device to execute the safety function while active. Benefits are realized in capturing data during shutdown events, allowing continuous HART communications during a trip and facilitating local panel annunciation using the built-in discrete outputs.

The SVI II ESD allows flexible PST execution and automatically captures the PST in its non-volatile memory and stores the analysis. Annunciation of the results is realized using HART, the local LCD, or discrete signals. Two signatures can be stored; ValVue ESD Lookout software (standalone or integrated) automatically and regularly synchronizes the database with field data. The PST, says the company, is implemented so that it does not interfere with the safety function; the product's architecture is designed to segregate the two functions.

www.masoneilan.com

Masoneilan-Dresser





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Intelligent, efficient PLC programming: Cost-saving programming languages are available now; Automation system upgrades; Help from the cloud; Improving flow control; System integration tips
Smarter machines require smarter systems; Fixing PID, part 3; Process safety; Hardware and software integration; Legalities: Integrated lean project delivery
Choosing controllers: PLCs, PACs, IPCs, DCS? What's best for your application?; Wireless trends; Design, integration; Manufacturing Day; Product Exclusive
PLCs, robots, and the quest for a single controller; how OEE is key to automation solutions.
This article collection contains several articles on improving the use of PID.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again