PETROSOL

📍PARCO - MCR , Multan Pakistan We started 2023 with the Installation of 2nd Aluminum Dome Roof (ADR) - TK # 28 (33.3m) at PARCO refinery complex. We are closing 2023 with the installation of 3rd Aluminum Dome Roof (ADR) - TK # 29 at PARCO refinery complex under the supervision of our Project Manager Rais Ahmed and Project Engineer Muhammad Bilal. For further queries please feel free to contact : ☎️ +90 553 925 9007 (WhatsApp) +92 21 37225461 (Landline) +92 300 2426933 (Mobile) 📧 Usman.ahmed@petrosol.com.pk Syed.ali@petrosol.com.pk #engineering #projects #pakistan #api650 #api653 #storagetanks #epcm #oilandgasindustry #oilandgas #refinery #refineryoperations #tankstorage #dome #crudeoil #epcprojects #projectmanagement

PETROSOL is a sole distributor of World Bridge (South Korea) in Pakistan dealing with Dome Roofs , Internal Floating Roofs , External Floating Roof Seals and Emission control devices / Vapor Recovery Systems. Please contact me for any queries for your tank design, inspections and emissions control measures. Usman Ahmed Sr. Project Engineer Email : usman.ahmed@petrosol.com.pk Mobile : +92 306 2092773

Frangible Roof for Storage Tanks (API 650) A frangible roof is a special type of tank roof designed to fail (or rupture) in a controlled way if excessive pressure builds up inside the tank. Instead of the walls or the bottom of the tank bursting, the roof is intentionally designed to be the weakest part. This allows it to act as a pressure release point, preventing the entire tank from rupturing catastrophically. According to API 650, frangible roofs are recommended for atmospheric storage tanks (those operating at or near atmospheric pressure). They offer a passive way to release pressure during extreme events like a fire or unexpected chemical reactions. In normal conditions, the roof stays intact and functions like any other tank roof. However, when there’s a sudden rise in pressure, the frangible roof will tear or separate along its weld seam (usually between the roof and the tank shell). This failure allows the pressure to escape, preventing damage to the tank’s walls or bottom. The goal is to avoid dangerous scenarios like: - Explosions from built-up pressure. - Cracks or tears in the tank walls, which are more expensive and dangerous to repair. - Environmental contamination from a full tank rupture. Advantages of Frangible Roof Design. Passive Safety Mechanism: No moving parts or mechanical devices needed. The design itself provides the safety feature. Prevents Tank Shell Damage: By allowing the roof to fail first, the tank shell and bottom are protected, reducing the risk of costly repairs or environmental damage. Reduces the Need for Emergency Vents: In some cases, frangible roofs can reduce the reliance on emergency pressure relief valves or other venting devices. Cost-Effective: Using a frangible roof can be a cheaper solution compared to installing large emergency venting systems. Compliant with API 650 Standards: API 650 acknowledges frangible roofs as an approved method for pressure relief, ensuring companies stay within regulatory guidelines. Limitations of Frangible Roofs Only suitable for low-pressure tanks: Frangible roofs are not effective for pressurized storage tanks since these tanks require more robust venting systems. Requires precise construction: The welds and materials must meet specific design requirements to ensure the roof will rupture correctly under pressure. One-time use: If the roof does rupture, the tank will need significant repairs or replacement before it can be used again. #tank #storagetank #api650 #api620 #api2000 #api653 #api625 #asme #oil #gas #refinery #petroleum #powerplant #frangibility #vent #explosion #fire

Storage Tanks : Resource guide #storagetanks #tankterminals

#methanol #storagetanks #safety

We are grateful to the LinkedIn management for taking notice of the disparging comments/ posts by Mr. Brian Quinn and suspending his account. We are also grateful to our followers and customers for timely reporting to the LinkedIn.

Excellent post by Amit Gabani on Tank Inspection Process

Since its first application 90 years ago till today, floating roof technology is still the most efficient and economic solution for reducing emissions and product losses. #storagetanks #tankstorage #tankfarm #tankterminals #tankcleaning #domes #refinery #refineryoperations #oilandgasindustry #api653 #api650 #epc #epcprojects #engineeringdesign #valueengineering #safety #emissionscontrol #emissionsreduction #safetystandards #mechanicalengineering #mechanicaldesign #api #asme #processdesign

Storing Naptha : In an industry where there aren’t many technical forums available for customers, contractors, consultants and OEMs to share ideas and best practices, these incidents and root cause analysis of failures must come to light and be debated. In a recent emissions audit of a Dangerous Product (DP) terminal it was revealed that Naphta with a RVP of 10 , FP 40c and Explosive limits, vol% in air 0.7-6.0 was being kept. There was a pungent smell of H2S within a 500m radius of the terminal. Further probe revealed that open deck internal floating roofs of a manufacturer claiming to have a new facility in Saudi Arabia but in reality sourcing from elsewhere had recently collapsed due to poor quality and engineering design and these emissions are a result of them. The production drawings of the manufacturer provided to us by the client were made on “Autocad educational version” , same goes for other calculations which indicated that manufacturer was using mostly cracked softwares, to save cost. What’s wrong with these “Open-deck” type internal floating roofs and why they are sinking every where ? As the name reveals it’s an “Open-deck”. The panels are hollow with edge welding. Manufacturer(s) rarely bothers to pressure test them before shipment and once put into operation they go through a lot of turbulent flow & high pressure due to ship to shore product custody transfer urgencies. Conclusion : Naphtha is a very dangerous product to store , handle and ship due to its RVP and FP. Extreme care and caution must be observed to design the tank and emissions control equipment like floating roofs. Open deck type roofs due to its poor design and sinking ratio should be avoided. To get access to the educational version design data of the manufacturer, please write to us : Usman.ahmed@petrosol.com.pk m.ashfaq@petrosol.com.pk #storagetanks #tankstorage #tankfarm #tankterminals #tankcleaning #domes #refinery #refineryoperations #oilandgasindustry #api653 #api650 #inspectionandtesting #waterindustry #desalination #desalinationplants #valves #pvv #epc #epcprojects #engineeringdesign #valueengineering #safety #emissionscontrol #emissionsreduction #safetystandards #mechanicalengineering #mechanicaldesign #api #asme #processdesign