No Threaded Flanges in ASME Division 1 and Division 2 Vessels
Pressure Vessel, Heat Exchanger, COMPRESS, Risk Management, JIP 33, Flange randy bogard Pressure Vessel, Heat Exchanger, COMPRESS, Risk Management, JIP 33, Flange randy bogard

No Threaded Flanges in ASME Division 1 and Division 2 Vessels

I’m fine Replacing-In-Kind, but I’m not going to Replace-In-Kind the threaded flanges from your old pressure vessel and heat exchanger drawings. Spotting threaded flanges in your old drawings signals that it’s a great time for some upgrades.

I understand that it’s tough keeping up with updates to all of the codes and standards required. That’s why I represent Owner/Operators by helping them enforce their own specifications. Specifications without enforcement are just words on a page. 

I don’t allow threaded flanges in facilities that use Process Industry Practices (PIP) standards because threaded flanges are not allowed in vessels designed per ASME Code Section VIII Division 1 and 2. 

Joint Industry Project 33 (JIP 33) doesn’t allow threaded flanges either.

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Finding ASME B16.5 Blind Flange Bolt Load
Pressure Vessel, Heat Exchanger, Flange, Bolting, Risk Management randy bogard Pressure Vessel, Heat Exchanger, Flange, Bolting, Risk Management randy bogard

Finding ASME B16.5 Blind Flange Bolt Load

Having a difficult time figuring out the Bolt Load (W) for your modified ASME B16.5 blind flange? Check the flange it is attached to!

Oftentimes ASME B16.5 blind flanges used as reducers include pipes larger than allowed in B16.5 without a reinforcement calculation. I have found that the additional bolted cover calculation trips up some designers as they were expecting the ASME B16.5 blind flange to be exempt. The most common reason people reach out to me is for help finding the Bolt Load (W) needed in the bolted cover required thickness calculation.  

Please remember that mating pairs share the Bolt Load (W). This means that finding the Bolt Load (W) needed for the bolted cover required thickness calculation may be as simple as grabbing it from the flange it is attached to.

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Simple Gasket Look-Up in COMPRESS
Mechanical Engineering, Pressure Vessel, Heat Exchanger, COMPRESS, Gasket, Gasket Stress, PCC-1, Bolts randy bogard Mechanical Engineering, Pressure Vessel, Heat Exchanger, COMPRESS, Gasket, Gasket Stress, PCC-1, Bolts randy bogard

Simple Gasket Look-Up in COMPRESS

Do you spend too much time looking up Gasket Factor (m) and Gasket Seating Stress Factor (y) values?

Whenever someone asks me to design a custom Appendix 2 or Part 4.16 flange I want to know the m and y factors of the gaskets they intend to use. A lot of times this crucial gasket design information is tough to track down. Thankfully COMPRESS has a great selection of pre-loaded gaskets to choose from including manufactures like Garlock, Flexitalic, Lamons, and Teadit. 

Use a manufacturer not listed in COMPRESS? It is easy to add new gaskets to the pre-loaded database.

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