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Application Brochure, -Functional safety

Application Brochure, -Functional safety
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Application Brochure, -Functional safety - 1

SAFETY SOLUTIONS

Application Brochure, -Functional safety - 2

Safety is reality and is part of our daily business. The same applies to ASCO; it is reality and part of your safety. You can rely on our focus on reliable products. Our solenoids in your process installation give you a higher degree of safety. The standards IEC61508 and 61511 state: ‘Functional safety is part of the overall safety that depends on a system or equipment operating correctly in response to its inputs.’ This applies not only to a new installation but continues over the full service life or ‘safety lifecycle’. With our solenoid valves for air operated safety valves we have...

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Application Brochure, -Functional safety - 3

REDUNDANCY WITH SOLENOID VALVES Two solenoid valves can be used to operate process or shutdown valves. In this full redundancy mode either reliability or availability of the final element can be increased depending on the piping configuration. Reliability is related to the integrity of the safety loop to perform its safety function, where availability is related to the production to maintain its function. Two solenoid valves connected in series as shown in figure 1 are operated in a 1oo2 voting by the logic solver. This increases the reliability (or PFD) of the system. At the same time...

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Application Brochure, -Functional safety - 4

Single solenoid certified solenoid valves Manual reset valves SAFETY SOLUTIONS ASCO has dedicated solutions to operate your safety valve with a high degree of integrity. We have three standard types of safety products for basic installations: single solenoid valves, manual reset valves and redundant (coil) solenoid valves. For more advanced installations, we have developed three different safety systems: bypass panels, actuator control systems and redundant control systems. SAFETY PRODUCTS 1. SINGLE SOLENOID VALVES 2. MANUAL RESET VALVES When you need to manually engage the final control...

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Application Brochure, -Functional safety - 5

Redundant Solenoid Valves Redundant Coil Solenoid Valves Bypass Panels 3. REDUNDANT (COIL) SOLENOID VALVES To increase the integrity of the solenoid valve operation ASCO has designed a valve construction that is operated with two independent coils. Configured in 1oo2 voting, the safety valve is operated if one of the two coils is de-energised. This 1oo2 configuration highly increases the reliability or integrity. Configured in 2oo2 voting, both coils must be de-energised to return the actuator/ process valve to its non-operating position. Redundant coil solenoid SAFETY SYSTEMS valves in...

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Application Brochure, -Functional safety - 6

Redundant Control Systems (RCS) Actuator Control Systems (ACS) under operation by using a bypass valve. The proper operation of an individual valve, include the ability to perform automatic online the solenoid valve can be verified visually and the state of the testing of the redundant solenoid valves, automatic partial stroke bypass valve is indicated. The valve can be replaced without testing of the process valve, and online maintenance capabilities. removing the air supply. The bypass panels greatly reduce the time This product is built for high reliability applications and functional...

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Application Brochure, -Functional safety - 7

Safety valve Enter Catalog Number View Details To ensure that you are familiar with the RCS product line, we recommend that you read the RCS catalog prior to designing a product. Design a Redundant Control System ATEX Cert * Indicates a required attribute On board Diagnostic Processor * None View Safety Manual * Closed Normally Normally Open Double Acting Enclosure * Stainless SteelMaterial 304 Composite (Fiberglass) System Voltage Operational Mode Optional Features Common Alarm Full Stroke Limit Switch Dual Power Sources Local Initiation of Sov Test Analog Input Module Local Initiation of...

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Application Brochure, -Functional safety - 8

‘ASCO, global market leader in solenoid valves, combines local presence with functional safety expertise and solutions to help you improve your process safety.’

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