Inspection Certificate
Certificate No 968/INS 319.00/20
Client / Certificate Owner Grande-Tek Flow Control Co., Ltd. Industrial Zone of Yunhe District Fuyang Road, Cangzhou 061001 Hebei Province P.R. China
Product Final Element Combination of floating ball valve and actuator
Type designation Ball Valve: Two-Piece Flange Floating Ball Valve (type: GV-Q2F1) from Grande-Tek Flow Control Co., Ltd. Actuator: Spring Return Rack and Pinion Pneumatic Actuator (type: PRS270C10) from WUXI FORCE & TORQUE TECHNOLOGY CO., LTD.
Standards applied for IEC 61508 Parts 1-2 and 4-7:2010 inspection
Inspection Results The actuator and the valve are certified according to IEC 61508 as single parts with certificate no. 968/V 1067.00/18 (actuator) and 968/V 1038.00/20 (valve). The combination of actuator and valve has a failure rate that is suitable for SIL 2 in low demand mode acc. IEC 61508. An appropriate solenoid valve must be adequately dimensioned and approved according to the mentioned standard. The instructions of the Safety Manuals and the statements and validity of the individual certificates must be considered before and during any use in safety related applications.
Inspection Period 2020-07-01 - 2020-10-22
Cologne, 2020-10-22 Dipl.-Ing. (FH) Wolf Rückwart
TÜV Rheinland Industrie Service GmbH Inspection Body of TÜV Rheinland Industrie Service GmbH Am Grauen Stein, D-51105 Köln Automation - Functional Safety, www.tuvasi.com Tel.: TÜV Rheinland Industrie Service GmbH +49 221 806-1790, Fax: 806-1539, E-Mail: [email protected] TÜV Rheinland Industrie Service GmbH, Am Grauen Stein, 51105 Köln / Germany
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Powered by TCPDF (www.tcpdf.org) 968/INS 319.00/20 - page 2
Holder: Grande-Tek Flow Control Co., Ltd. Industrial Zone of Yunhe District, Fuyang Road, Cangzhou, Hebei Province, 061001, P.R. China
Product inspected: Pneumatic Ball Valve which is a combination of: - Spring Return Rack and Pinion Pneumatic Actuator (type: PRS270C10) from WUXI FORCE & TORQUE TECHNOLOGY CO., LTD. and - Two-Piece Flange Floating Ball Valve (type: GV- Q2F1) from Grande-Tek Flow Control Co., Ltd.
Results of Inspection Mode of Operation Low Demand Mode Hardware Fault Tolerance HFT 0
Dangerous Failure Rate λD 5.99 E-07 / h 599 FIT
Average Probability of Failure on Demand 1oo1 PFDavg(T1) 2.62 E-03
Assumptions for the calculations above: DC = 0 %, T1 = 1 year
Origin of failure rates The stated values are the result of an inspection of the combination of the already certified components.
Periodic Tests and Maintenance The given values require periodic tests and maintenance as described in the Safety Manuals. The operator is responsible for the consideration of specific external conditions (e.g. ensuring of required quality of media, max. temperature, time of impact), and adequate test cycles.
TÜV Rheinland Industrie Service GmbH, Am Grauen Stein, 51105 Köln / Germany