B7 bolts in place of L7

Mechanical / Civil engineering, Design of Pressure Vessels, Heat-exchangers, Piping, Steel / Civil Structure etc.
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kamran
Core Member
Posts: 39
Joined: 02 Apr 2010, 05:22
Area of interest: Manufacturing Engineering

B7 bolts in place of L7

Post by kamran »

Can we apply the above (B7 in place of L7 bolts) on an Ammonia service line?
What are the risks/hazards involved if any?
Kamran
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ben
Posts: 214
Joined: 24 Aug 2010, 03:11
Area of interest: Mechanical Engineering

Re: B7 bolts in place of L7

Post by ben »

What's the design minimum temperature?
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arcpro
Posts: 356
Joined: 16 Apr 2010, 18:46
Area of interest: Manufacturing Engineering

Re: B7 bolts in place of L7

Post by arcpro »

As per piping design code, ASME B31.3, B7 bolts can be used at the temperature down to -48 deg C with sizes less than 2.5" diameter.
See if this is the case.
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