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Automatic positive safety valve - Firestop - for tank farms

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The document describes a product called Firestop that is designed to automatically seal tank inlets and outlets during a fire emergency to prevent the spread of volatile or hazardous fluids. It functions by using thermo fuses that release a spring-loaded disc to close when temperatures reach 255¡ãF, cutting off the flow into or out of tanks. The Firestop is designed to meet various safety regulations and provide reliable emergency shutdown without power by responding solely to heat from the fire. It can also be equipped with remote operation options for additional control and monitoring.

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Don¡¯t let your tank farm turns¡­ YOUR S A TIS FA C TION FIRS T¡­
±õ²Ô³Ù´Ç¡­ HELL¡­ YOUR S A TIS FA C TION FIRS T¡­
To stop the flow of volatile or hazardous fluids from tanks, in a fire Feederstop emergency Firestop situation, by automatically sealing each tank inlet and outlet IN OUT YOUR S A TIS FA C TION FIRS T¡­
Product Background In 1993 we sat down with tank farms owners, at their request, to design and manufacture a device complying with French and European safety regulations concerning industrial sites potentially dangerous for the environment in case of accident (EEC Directive n¡ã 82/501/CEE a.k.a. Seveso Directive). Based on ?French tank farms regulations (art 318.21), ?French industrial safety commission requirements (IM art. 17 dated 9/11/89) ? ATEX 94/9/CE (EU directive on equipment and protective systems intended for use in potentially explosive atmospheres) It appeared the most reliable solution was a non return swing check valve used backward. YOUR S A TIS FA C TION FIRS T¡­
Regulation requirements Legal mandatory requirements requested the device : ? To keep the inflammable liquid inside the tank to avoid further feeding of the fire in case of piping break down and/or leakage, ? To close down automatically without any human intervention and without depending on external power supply other than the one responsible for the accident. In other words the fire alone should activate the automatic shut down (positively safe), ? To allow remote closing of the device, ? To be fire safe, in compliance with BS 6755, ? To avoid disturbance of existing process line ? To allow injection of foam through conduit ? To allow quick emptying of the tank once the fire is controlled (in case of tank leak for example) ? To be strictly dedicated to safety. YOUR S A TIS FA C TION FIRS T¡­
I- Our dedicated solution: FIRESTOP YOUR S A TIS FA C TION FIRS T¡­
I- Our dedicated solution: FIRESTOP ? We supply Firestops with nominal diameter ranging from 50 to 600 mm (2 to 24 inches). Other sizes on request ? Possible material : Cast Iron (A 216 gr WCB) or Stainless Steel (A 351 gr CF 3 M) . Other materials on request ? Connections: Flanges (ISO PN 20) ? From DN 450 (18¡¯¡¯) Firestops are equipped with a reduction and a hydraulic flow attenuation rotating shock absorber. system YOUR S A TIS FA C TION FIRS T¡­
A ¨C To keep the liquid inside¡­ ? Stellite/stellite tightness (Stellite 6, plasma deposit on seat and disc as per NF EN 15614-7) ? Even though fluid pressure is usually low in the tanks, we use our successful PN20 (#150) swing check valve design issued from our almost 150 years experience manufacturing valves. YOUR S A TIS FA C TION FIRS T¡­
B ¨C To close down automatically¡­ (1) (2) ? 3 non ferrous thermo fuses (1) hold the Top disc in a normally open position . view ? These fuses are mounted at the end of the disc holding shaft in an enclosure also including a loaded spring (2). ? When the on site ambient temperature reaches the set up point of 124¡ã C / 255¡ã F (set up as standard; other temp. on request) the fuses become liquid thus releasing the spring which close the disc automatically. YOUR S A TIS FA C TION FIRS T¡­
B ¨C To close down automatically¡­ YOUR S A TIS FA C TION FIRS T¡­
B ¨C To close down automatically¡­ Thermo fuses showed BEFORE & AFTER the fire test YOUR S A TIS FA C TION FIRS T¡­
C ¨C To allow remote operation¡­ ? As an option our Firestop can be equipped with an electromagnetic or a pneumatic drive, allowing closing of the device from a remote location. ?In case of power failure (emergency stop, onsite accident/fire too far to be detected by the fuses,¡­) both drives are fail safe and will make the disc to close thus sealing the tank. YOUR S A TIS FA C TION FIRS T¡­
C ¨C To allow remote operation¡­ ?The thermo fuses will override the remote operation to automatically close the disc in case of fire detection. ? For further security , our automatic shut off device is fully enclosed and factory sealed to avoid being tampered with. ? All our Firestop can be equipped with this option at a later stage YOUR S A TIS FA C TION FIRS T¡­
C ¨C To allow remote operation¡­ To enhance safety our Firestops are factory equipped with local disc position indicator to provide local information to your on site operator Disc Open Closed YOUR S A TIS FA C TION FIRS T¡­
C ¨C To allow remote operation¡­ ? The Firestop can also be equipped with limit switches (II 2 GD EEX d II CT6) connected to a junction box (enclosure II 2 GD EEX e II T6) so you can get data from our Firestop to your DCS, to check its disc position or to control other equipments (for example shut down of a pump when the disc is closed ). YOUR S A TIS FA C TION FIRS T¡­
C ¨C To allow remote operation¡­ Firestop complete with lid position indicator, remote controlled drive, limit switch and junction box YOUR S A TIS FA C TION FIRS T¡­
D ¨C To be fire safe¡­ ? Firestop complies with BS 6755 fire test (equivalent to API 607 3rd edition or ISO 10497:2004 ), holding leakage at least 30 minutes. YOUR S A TIS FA C TION FIRS T¡­
D ¨C To be fire safe¡­ ? It also complies with the even more stringent French fire department fire tests requiring 3 hours holding time to give firemen more time to fight the blaze. YOUR S A TIS FA C TION FIRS T¡­
D ¨C To be fire safe Test results BS 6755 part 2 (API 607 3rd edition) API 607 Data recorded Requirments 30 min test 3 hours test Disc closing time - 110 sec 110 sec During flame exposure Delta P = 1 bar external leaks < 800 ml/min 0 0 internal leaks < 3200 ml/min 0 0 Correct opening of check - P = 0,8 bar P= 0,8 bar valve with water injection - Q= 116 m3/h Q= 120 m3/h After water injection Delta P = 1 bar Internal leaks < 160 ml/min 0 0 External leaks < 320 ml/min 4 ml/min 130 ml/min YOUR S A TIS FA C TION FIRS T¡­
E ¨C To avoid disturbance of existing process line ? Due to its swing check valve design (API 6D) there is no diameter Tank discharge reduction in your flow flow thus no pressure loss. ? Therefore Firestop can be installed on your ?Its design (full passage) also existing tank discharge allows you to use a scrapper, line without disturbing should you need to clean your your pumps operation (if process line. any). YOUR S A TIS FA C TION FIRS T¡­
F ¨C To allow foam injection through conduit ¡­ ?Its check valve design also allows you to inject water or foam under 5 bars pressure, through the outline line. Water / foam flow Tank YOUR S A TIS FA C TION FIRS T¡­
G ¨C To allow quick emptying¡­ ? We do have a procedure to manually open our Firestop with special tools, supplied at purchase, once the fuses have blown after a fire. ? But we strongly recommend to proceed with extreme caution and only once the fire around is totally under control since you ? lost ? the automatic shut off advantage (fuses having melt the first time). YOUR S A TIS FA C TION FIRS T¡­
H ¨C To be dedicated to safety¡­ To avoid the safety device to be turned off unintentionally during tank unloading, the legislator, in France, does not allow the safety device to be used as process valve . Therefore depending on your local legislation we suggest you installed our Firestop in line with your process valve. If needed, we will gladly supply one as well, from our line of gate valves. YOUR S A TIS FA C TION FIRS T¡­
H ¨C To be dedicated to safety¡­ In line Firestop for safety and gate valve for process YOUR S A TIS FA C TION FIRS T¡­
III - References As of today more than 2500 Firestop have been sold, mainly in France and Europe, to tank farm owners such as: YOUR S A TIS FA C TION FIRS T¡­
IV - Summary A. Leak free even after 3 hours exposure to fire conditions B. Totally autonomus shut off once fire heat is detected, without any need of an outside source of power C. Can be closed from remote location D. Fire safe during 3 hours E. No disruption of existing process line F. Possibility to inject foam in the tank trough the process line. G.Allows quick emptying H. Dedicated to safety YOUR S A TIS FA C TION FIRS T¡­
YOUR S A TIS FA C TION FIRS T¡­
YOUR S A TIS FA C TION FIRS T¡­
Thank you For further information, do not hesitate to contact : Francois Guerrero : +33 6 84 72 27 83 or f-guerrero@oilandgastechnologies.eu YOUR S A TIS FA C TION FIRS T¡­

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Automatic positive safety valve - Firestop - for tank farms

  • 1. Don¡¯t let your tank farm turns¡­ YOUR S A TIS FA C TION FIRS T¡­
  • 2. ±õ²Ô³Ù´Ç¡­ HELL¡­ YOUR S A TIS FA C TION FIRS T¡­
  • 3. To stop the flow of volatile or hazardous fluids from tanks, in a fire Feederstop emergency Firestop situation, by automatically sealing each tank inlet and outlet IN OUT YOUR S A TIS FA C TION FIRS T¡­
  • 4. Product Background In 1993 we sat down with tank farms owners, at their request, to design and manufacture a device complying with French and European safety regulations concerning industrial sites potentially dangerous for the environment in case of accident (EEC Directive n¡ã 82/501/CEE a.k.a. Seveso Directive). Based on ?French tank farms regulations (art 318.21), ?French industrial safety commission requirements (IM art. 17 dated 9/11/89) ? ATEX 94/9/CE (EU directive on equipment and protective systems intended for use in potentially explosive atmospheres) It appeared the most reliable solution was a non return swing check valve used backward. YOUR S A TIS FA C TION FIRS T¡­
  • 5. Regulation requirements Legal mandatory requirements requested the device : ? To keep the inflammable liquid inside the tank to avoid further feeding of the fire in case of piping break down and/or leakage, ? To close down automatically without any human intervention and without depending on external power supply other than the one responsible for the accident. In other words the fire alone should activate the automatic shut down (positively safe), ? To allow remote closing of the device, ? To be fire safe, in compliance with BS 6755, ? To avoid disturbance of existing process line ? To allow injection of foam through conduit ? To allow quick emptying of the tank once the fire is controlled (in case of tank leak for example) ? To be strictly dedicated to safety. YOUR S A TIS FA C TION FIRS T¡­
  • 6. I- Our dedicated solution: FIRESTOP YOUR S A TIS FA C TION FIRS T¡­
  • 7. I- Our dedicated solution: FIRESTOP ? We supply Firestops with nominal diameter ranging from 50 to 600 mm (2 to 24 inches). Other sizes on request ? Possible material : Cast Iron (A 216 gr WCB) or Stainless Steel (A 351 gr CF 3 M) . Other materials on request ? Connections: Flanges (ISO PN 20) ? From DN 450 (18¡¯¡¯) Firestops are equipped with a reduction and a hydraulic flow attenuation rotating shock absorber. system YOUR S A TIS FA C TION FIRS T¡­
  • 8. A ¨C To keep the liquid inside¡­ ? Stellite/stellite tightness (Stellite 6, plasma deposit on seat and disc as per NF EN 15614-7) ? Even though fluid pressure is usually low in the tanks, we use our successful PN20 (#150) swing check valve design issued from our almost 150 years experience manufacturing valves. YOUR S A TIS FA C TION FIRS T¡­
  • 9. B ¨C To close down automatically¡­ (1) (2) ? 3 non ferrous thermo fuses (1) hold the Top disc in a normally open position . view ? These fuses are mounted at the end of the disc holding shaft in an enclosure also including a loaded spring (2). ? When the on site ambient temperature reaches the set up point of 124¡ã C / 255¡ã F (set up as standard; other temp. on request) the fuses become liquid thus releasing the spring which close the disc automatically. YOUR S A TIS FA C TION FIRS T¡­
  • 10. B ¨C To close down automatically¡­ YOUR S A TIS FA C TION FIRS T¡­
  • 11. B ¨C To close down automatically¡­ Thermo fuses showed BEFORE & AFTER the fire test YOUR S A TIS FA C TION FIRS T¡­
  • 12. C ¨C To allow remote operation¡­ ? As an option our Firestop can be equipped with an electromagnetic or a pneumatic drive, allowing closing of the device from a remote location. ?In case of power failure (emergency stop, onsite accident/fire too far to be detected by the fuses,¡­) both drives are fail safe and will make the disc to close thus sealing the tank. YOUR S A TIS FA C TION FIRS T¡­
  • 13. C ¨C To allow remote operation¡­ ?The thermo fuses will override the remote operation to automatically close the disc in case of fire detection. ? For further security , our automatic shut off device is fully enclosed and factory sealed to avoid being tampered with. ? All our Firestop can be equipped with this option at a later stage YOUR S A TIS FA C TION FIRS T¡­
  • 14. C ¨C To allow remote operation¡­ To enhance safety our Firestops are factory equipped with local disc position indicator to provide local information to your on site operator Disc Open Closed YOUR S A TIS FA C TION FIRS T¡­
  • 15. C ¨C To allow remote operation¡­ ? The Firestop can also be equipped with limit switches (II 2 GD EEX d II CT6) connected to a junction box (enclosure II 2 GD EEX e II T6) so you can get data from our Firestop to your DCS, to check its disc position or to control other equipments (for example shut down of a pump when the disc is closed ). YOUR S A TIS FA C TION FIRS T¡­
  • 16. C ¨C To allow remote operation¡­ Firestop complete with lid position indicator, remote controlled drive, limit switch and junction box YOUR S A TIS FA C TION FIRS T¡­
  • 17. D ¨C To be fire safe¡­ ? Firestop complies with BS 6755 fire test (equivalent to API 607 3rd edition or ISO 10497:2004 ), holding leakage at least 30 minutes. YOUR S A TIS FA C TION FIRS T¡­
  • 18. D ¨C To be fire safe¡­ ? It also complies with the even more stringent French fire department fire tests requiring 3 hours holding time to give firemen more time to fight the blaze. YOUR S A TIS FA C TION FIRS T¡­
  • 19. D ¨C To be fire safe Test results BS 6755 part 2 (API 607 3rd edition) API 607 Data recorded Requirments 30 min test 3 hours test Disc closing time - 110 sec 110 sec During flame exposure Delta P = 1 bar external leaks < 800 ml/min 0 0 internal leaks < 3200 ml/min 0 0 Correct opening of check - P = 0,8 bar P= 0,8 bar valve with water injection - Q= 116 m3/h Q= 120 m3/h After water injection Delta P = 1 bar Internal leaks < 160 ml/min 0 0 External leaks < 320 ml/min 4 ml/min 130 ml/min YOUR S A TIS FA C TION FIRS T¡­
  • 20. E ¨C To avoid disturbance of existing process line ? Due to its swing check valve design (API 6D) there is no diameter Tank discharge reduction in your flow flow thus no pressure loss. ? Therefore Firestop can be installed on your ?Its design (full passage) also existing tank discharge allows you to use a scrapper, line without disturbing should you need to clean your your pumps operation (if process line. any). YOUR S A TIS FA C TION FIRS T¡­
  • 21. F ¨C To allow foam injection through conduit ¡­ ?Its check valve design also allows you to inject water or foam under 5 bars pressure, through the outline line. Water / foam flow Tank YOUR S A TIS FA C TION FIRS T¡­
  • 22. G ¨C To allow quick emptying¡­ ? We do have a procedure to manually open our Firestop with special tools, supplied at purchase, once the fuses have blown after a fire. ? But we strongly recommend to proceed with extreme caution and only once the fire around is totally under control since you ? lost ? the automatic shut off advantage (fuses having melt the first time). YOUR S A TIS FA C TION FIRS T¡­
  • 23. H ¨C To be dedicated to safety¡­ To avoid the safety device to be turned off unintentionally during tank unloading, the legislator, in France, does not allow the safety device to be used as process valve . Therefore depending on your local legislation we suggest you installed our Firestop in line with your process valve. If needed, we will gladly supply one as well, from our line of gate valves. YOUR S A TIS FA C TION FIRS T¡­
  • 24. H ¨C To be dedicated to safety¡­ In line Firestop for safety and gate valve for process YOUR S A TIS FA C TION FIRS T¡­
  • 25. III - References As of today more than 2500 Firestop have been sold, mainly in France and Europe, to tank farm owners such as: YOUR S A TIS FA C TION FIRS T¡­
  • 26. IV - Summary A. Leak free even after 3 hours exposure to fire conditions B. Totally autonomus shut off once fire heat is detected, without any need of an outside source of power C. Can be closed from remote location D. Fire safe during 3 hours E. No disruption of existing process line F. Possibility to inject foam in the tank trough the process line. G.Allows quick emptying H. Dedicated to safety YOUR S A TIS FA C TION FIRS T¡­
  • 27. YOUR S A TIS FA C TION FIRS T¡­
  • 28. YOUR S A TIS FA C TION FIRS T¡­
  • 29. Thank you For further information, do not hesitate to contact : Francois Guerrero : +33 6 84 72 27 83 or f-guerrero@oilandgastechnologies.eu YOUR S A TIS FA C TION FIRS T¡­