Flowserve Valtek Mark Safety Manual
Control valves
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Also See for Valtek Mark:
- User instructions (16 pages) ,
- Installation, operation & maintenance instructions manual (13 pages)
Related Manuals for Flowserve Valtek Mark
Summary of Contents for Flowserve Valtek Mark
- Page 1 SIL SAFETY GUIDE Valtek Mark Series Control Valves High Performance Globe and Angle Valves FCD VLENIM0001-01 07.07 FCD FCAIM0100-01 FCD VLAIM003-03 FCD VLAIM006 FCD VLENIM0036-04...
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Page 2: Table Of Contents
1.2 Acronyms 1.3 Product Support 1.4 Related Literature 1.5 Reference Standards Mark Series Valve Device Description Designing a Safety Instrumented Function using a Flowserve Mark Series 3.1 Safety Function 3.2 Environmental limits 3.3 Application limits 3.4 Design Verification 3.5 SIL Capability 3.6 Connection of the Mark Series valve to the SIS Logic-solver... -
Page 3: Introduction
This Safety Manual provides information necessary to design, install, verify and maintain a Safety Instrumented Function (SIF) utilizing a Flowserve Valtek Mark Series Valve and Cylinder Actuator. This manual provides necessary requirements for meeting the IEC 61508 or IEC 61511 functional safety standards. -
Page 4: Acronyms
SIS is composed of any combination of sensor(s), logic solver(s), and final element(s). Product Support Please refer to the back cover for your regional Flowserve contact details. Related Literature Hardware Documents: Valtek Mark Series Control Valve Installation, Operation, and Maintenance Instructions... -
Page 5: Mark Series Valve Device Description
Valtek Mark Series valve Technical Bulletins. Application limits The materials of construction of a Mark Series valve are specified in various Valtek Mark Series valve Technical Bulletins. It is especially important that the designer check for material compatibility considering on-site chemical contaminants, temperature/pressure limitations, and air supply conditions. -
Page 6: Design Verification
Design Verification A detailed Failure Mode, Effects, and Diagnostics Analysis (FMEDA) report is available from Flowserve. This report details all failure rates and failure modes. The achieved Safety Integrity Level (SIL) of an entire Safety Instrumented Function (SIF) design must... -
Page 7: General Requirements
General Requirements The system’s response time shall be less than process safety time. To find the maximum necessary time for the Mark Series valve to move to its safe state position please refer to Table 1. All SIS components including the Mark Series valve must be operational before process start-up. User shall verify that the Mark Series valve is suitable for use in safety applications by confirming the Mark Series valve’s nameplate is properly marked. - Page 8 Table 1 Estimated Stroking Speeds Without Boosters With Boosters Stroke Actuator Size (sq. in.) Total Time Total Time Total Time Total Time (inches) To Open To Close To Open To Close 0.75 25 (1/4-inch tubing) 50 (1/4-inch tubing) 11.1 12.8 15.8 100 (1/4-inch tubing) 18.6...
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Page 9: Installation And Commissioning
4. Installation and Commissioning Installation The Mark Series valve must be installed per standard practices outlined in the Installation Manuals. The environment must be checked to verify that environmental conditions do not exceed the ratings. The Mark Series valve must be accessible for physical inspection. Physical Location and Placement The Mark Series valve shall be accessible with sufficient room for pneumatic connections and shall allow manual proof testing. -
Page 10: Repair And Replacement
Repair procedures in the various Mark Series valve Installation, Operation and Maintenance manuals must be followed. The SIL rating of the valve will be voided if the repair is not performed with Flowserve OEM parts and serviced by a competent person. - Page 11 Appendix A – SIS Checklist The following checklist may be used as a guide to employ the Mark Series valve device in a safety critical SIF compliant to IEC61508. Verified Activity Result Date Design Target Safety Integrity Level and PFDavg determined Correct valve mode chosen (Fail-closed, Fail-open) Design decision documented Pneumatic compatibility and suitability verified...
- Page 12 NOTES...
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