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  1. ProSafPlant1

    I have a question about the installation of the beam detector.

    NFPA 72 Fire Alarm Code - see attached excerpt, assuming this is a beam type smoke detector.
  2. ProSafPlant1

    Blanketing Valves Location

    Condensation of tank vapors in the line will lead to a liquid head, very little required to shut off the flow.
  3. ProSafPlant1

    Area Classification of Natural Gas Valve Manifold

    Yes, Area Classification is basically probabilistic and detailed calculations can be done to support a particular design, although it can be time-consuming... I've used the methodology described (with examples) in "Classification of Hazardous Locations", A.W. Cox et al, IChemE 1990 to...
  4. ProSafPlant1

    Redundant fire pumps for campus setup

    Many insurance AHJs, other than the FMs, will recommend following GAP.14.0.1 "Fire Protection Water Supplies", excerpt attached. The current version is on the AXA XL website, GAP now called PRC.
  5. ProSafPlant1

    Upstream - API 12F storage tank, safe distance from heater treaters and combustor/flares?

    Recommended industry practice based on long-standing insurance guidelines - GAP 2.5.2 Oil and Chemical Plant Layout and Spacing, although for production properties there was a slightly less restrictive guideline no longer published - "Gasoline Plants - Recommendations and Guidelines". I should...
  6. ProSafPlant1

    Hose detached from Nitrogen Generation System one worker injured, is it a Process Safety Event?

    Sounds correct also to API 754. But not worth fighting over as it should be adequately investigated under an OSE incident reporting system, focusing on care and management of utility hoses. retired, technical library for sale on eBay - https://www.ebay.com/usr/prosafbooks
  7. ProSafPlant1

    P&ID symbol for Internal Fire Safety Valve with Fusible Link

    Here's a symbol from a company that used to install Greenwood QCV's on LPG tank outlets. Also a fusible link from another company's PID standard. A motor-operated valve symbol with TSE instead of M on the box might work. retired, technical library for sale on eBay -...
  8. ProSafPlant1

    Position of Inert Gas or CO2 Line

    This might be a better question for the NFPA (fire) Code Issues forum. NFPA 12 (CO2) and NFPA 2001 (Clean Agents) may have some guidance. retired, technical library for sale on eBay - https://www.ebay.com/usr/prosafbooks
  9. ProSafPlant1

    Calgary 2 m diameter water feeder main break

    Calgary was under emergency water restrictions for over a month. City advises the pipe was designed to last 100 years and it failed at only year 49. Investigation into cause to take 1 year. https://globalnews.ca/news/10626802/calgary-feeder-main-break-ballpark-cost/ retired, technical library...
  10. ProSafPlant1

    hot dip galvanized bolts forbidden on Stainless Steel vessel?

    Here's a summary of some zinc LME incident references I first did about 20 years ago. retired, technical library for sale on eBay -...
  11. ProSafPlant1

    Refinery product corrosion effeect

    This paper from a 2008 AIChE conference is available by Googling. retired, technical library for sale on eBay - https://www.ebay.com/usr/prosafbooks
  12. ProSafPlant1

    NFPA XX VS AS 2419 - Hydrant design

    For industrial, chemical, petrochemical plants NFPA is usually the minimum, with recommended good practice also being the relevant FM or GAP / AXA guidelines, e.g. FM DS 7-14 Fire Protection for Chemical Plants, FM DS 3-10 Private Fire Service Mains, GAP.17.2.1 High Hazard Chemical and...
  13. ProSafPlant1

    NPFA 30 - Warehouse Fire protection schemes A,B,C,D,E - What sets the scheme

    Agree that this looks complicated enough to get a professional involved. Even if "self-insured" there is likely a contact in the organization with access to loss control / fire protection specialists, usually the insurance / risk management department. As a risk control consultant, now retired...
  14. ProSafPlant1

    Combustible Liquid Splash Filling

    The Canadian Fire Codes are more restrictive than NFPA last time I checked on this detail - transfer of flammable or combustible liquids by compressed air or other non-inert gas pressure is prohibited. Re combustible liquid mists see attached
  15. ProSafPlant1

    Buried LPG Tanks

    Here's a couple of standards that go into some detail on the engineering. I've seen several aboveground mounded installations at process plants, but only seen one underground cylindrical LPG tank installation (at a pipeline storage terminal).
  16. ProSafPlant1

    I am looking for help. This is abou

    Given the number of churches that have burned to the ground in Alberta recently and over the past few years, I would guess variances to ABC and AFC are not that easy to get.
  17. ProSafPlant1

    Sulfuric Acid Storage

    TAPPI TIP 0606-26 Sulfuric Acid safe storage and handlinghttps://files.engineering.com/getfile.aspx?folder=4e9152a6-e165-49bf-a1f1-2e70f4756eab&file=Sulphuric_Acid_Safe_Storage_and_Handling_2012.pdf
  18. ProSafPlant1

    NFPA FIRE PROTECTION HANDBOOK 21ST EDITION.

    A nice hard copy with a CD version available on my eBay technical safety / fire protection book library for sale. https://www.ebay.ca/usr/prosafbooks
  19. ProSafPlant1

    Fired heater safety distance

    It's a longtime insurance recommendation dating back to Oil Insurance Association in the 1970s. OIA later became IRI (Industrial Risks Insurers) and then published their standards as GAP (Global Asset Protection. The GAP guidelines were more recently published by AIChE CCPS in their guidelines...
  20. ProSafPlant1

    Is there a Relief Device Exemption for this Vessel?

    georgeverghese, ideally the vent discharge is just water vapour, but typically can contain various components of the raw gas stream often both flammable and/or toxic, which is why they are now typically directed to containment / recovery. MortenA, yes the continuous hot water vapour / steam...

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